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WO2005085605A1 - Gas exchange valve for an internal combustion engine - Google Patents

Gas exchange valve for an internal combustion engine Download PDF

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Publication number
WO2005085605A1
WO2005085605A1 PCT/DE2005/000179 DE2005000179W WO2005085605A1 WO 2005085605 A1 WO2005085605 A1 WO 2005085605A1 DE 2005000179 W DE2005000179 W DE 2005000179W WO 2005085605 A1 WO2005085605 A1 WO 2005085605A1
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WO
WIPO (PCT)
Prior art keywords
valve
cone
base
gas exchange
stem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2005/000179
Other languages
German (de)
French (fr)
Inventor
Marcus Abele
Martin Lechner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Ventiltrieb GmbH
Original Assignee
Mahle Ventiltrieb GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle Ventiltrieb GmbH filed Critical Mahle Ventiltrieb GmbH
Priority to EP05706738A priority Critical patent/EP1599658B1/en
Priority to JP2007501103A priority patent/JP4708413B2/en
Priority to US10/556,967 priority patent/US7240895B2/en
Priority to DE502005000011T priority patent/DE502005000011D1/en
Publication of WO2005085605A1 publication Critical patent/WO2005085605A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a gas exchange valve of an internal combustion engine according to the preamble of patent claim 1.
  • Such gas exchange valves are known for example from W099 / 16295 and US 2,398,514.
  • the invention is concerned with the problem of minimizing the stresses which occur on the valve disc, in particular in its base region, due to temperature and combustion chamber pressure, by means of an optimized disc geometry, in particular in its base region, while at the same time minimizing wall thicknesses. In doing so, particular attention should be paid to the overall deformation of the valve with regard to a displacement of the valve stem on the one hand and the deformation of the valve base between the support in the center of the base and the outer base area under combustion chamber pressure on the other hand.
  • the invention is based on the general idea of reinforcing the valve base in the case of an overall convex shape by means of ring-shaped bead areas which run around the valve axis and each have a convex outward-facing cross-section.
  • a single such ring bead which can also be referred to as a toroidal section, between the inner support on the valve stem and the outer connection to the valve cone can be sufficient.
  • a plurality of annular beads arranged concentrically to one another within the valve base can also be provided.
  • the central region of the valve base when it adjoins a hollow valve stem, can be convex or concave to the outside.
  • the individual elements of the gas exchange valve according to the invention are generally welded to one another when the valve is made of metal.
  • valve cone which is generally used in practice, “cone” with regard to its shape is not to be understood strictly mathematically, but rather in the sense of any funnel shape.
  • the valve base closes the valve cone via a connecting collar on.
  • the connection is made in such a way that the radially outer edge areas of the valve base in the form of the connecting collar on the one hand and the valve cone on the other hand lie in a conical surface formed by the lateral surface of a fictitious cone built in the valve axis with a tapering in the same direction as the valve cone run out together towards the cone base surface.
  • hollow valve disks also show in longitudinal cross section
  • valve base reinforced by a single ring bead
  • FIG. 2 a valve base according to FIG. 1 with a radially outer connection collar
  • FIG. 3 shows a valve base according to FIG. 2 with a valve stem widened within the valve plate
  • FIG. 4 shows a valve base according to FIG. 1 with an additional, convex design in the central area
  • FIG. 5 shows a valve base in a basic form according to FIG. 2 with an additional ring bead and a support cone within the valve plate.
  • valve plate made of metal are welded to one another without the weld seams being shown as such.
  • the valve disk according to the invention according to FIG. 1 comprises a valve base 1, a hollow valve cone 2 and a hollow valve stem 3.
  • the valve base 1 is welded to the hollow cylindrical valve stem 3 on the one hand and the outer edge of the valve cone 2 on the other hand.
  • the tapered end of the valve cone 2 is also welded to the valve stem 3.
  • the above-mentioned components which are connected to one another jointly form a rigid rotational surface structure.
  • the valve base 1 has a largely flat, central area 4 in the center of the base.
  • the ring area lying between this central area 4 and the outer edge of the valve base 1 is designed as an annular bead 5, which can also be referred to as a torus section, with an outwardly convex curvature.
  • a connecting collar 7 is additionally formed between the ring bead 5 and a radially outer joining area 6 between the valve base 1 and valve cone 2.
  • the connecting collar 7 adjoins the valve cone 2 in a connecting surface which is formed on a conical surface, which is erected in the valve axis and has a taper which is the same in relation to the valve cone 2.
  • the connecting collar 7 and the adjacent edge area of the valve cone 2 run out together in this conical surface in the direction of the conical base surface.
  • valve stem 3 with an area 8 widened inside the valve is used.
  • This widened area 8 provides improved support for the valve base 1 in its central area.
  • valve stem 3 1 inside the enlarged area 8 of the valve stem 3 is convexly curved outwards in a central area 9.
  • FIG. 5 is based on a basic valve shape according to FIG. 2. In contrast to the embodiment according to Fig.
  • a support cone 10 is provided in the interior of the valve cone 2. In its tapered area, this support cone 10 is welded to the valve stem 3. The support cone 10 is also welded to the valve base 1. The area in which the support cone 10 is welded to the valve base 1 lies between ring beads 5 ′ and 5 ′ that are formed concentrically to one another in the valve base 1. 11, both of which have a convex cross-section.
  • the valve base with two concentric annular beads 5 ', 11 has particularly good stability. All of the features shown in the description and in the following claims can be essential to the invention both individually and in any form.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to a gas exchange valve for an internal combustion engine, comprising a particularly hollow valve stem (3) and valve head, whereby the valve head comprises a valve crown (1) with a hollow valve shoulder (2) connected to the outer edge thereof, the valve shoulder (2) tapers with increasing separation from the crown, the valve stem (3) runs through the hollow valve shoulder (2) and is fixed to the valve crown (1) and the tapered end of the valve shoulder (2) and the end of the valve shaft (3), connected to the valve crown (1), projects above the connecting plane between valve shoulder (2) and valve crown (1). The aim of the invention is to improve stability and resistance of the above. Said aim is achieved by means of a gas exchange valve characterised in that the valve crown (1) comprises at least one radially adjacent annular fold (5; 5', 11) with a cross-sectional area running convexly to the outside, in the annular region between the connection thereof to the valve stem (3) and to the valve shoulder (2).

Description

Gaswechselventil eines Verbrennungsmotors Gas exchange valve of an internal combustion engine

Die Erfindung betrifft ein Gaswechselventil eines Verbrennungsmotors nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a gas exchange valve of an internal combustion engine according to the preamble of patent claim 1.

Solche Gaswechselventile sind beispielsweise bekannt aus W099/16295 und US 2,398,514.Such gas exchange valves are known for example from W099 / 16295 and US 2,398,514.

Die Erfindung beschäftigt sich mit dem Problem, die an dem Ventilteller, insbesondere in dessen Bodenbereich, durch Temperatur und Brennraumdruck auftretenden Belastungen durch eine optimierte Tellergeometrie und zwar insbesondere in dessen Bodenbereich zu minimieren bei gleichzeitig möglichst geringen Wandstärken. Dabei soll insbesondere die Gesamtverformung des Ventils beachtet werden und zwar im Hinblick auf eine Verschiebung des Ventilschafts einerseits und auf die Verformung des Ventilbodens zwischen der Abstützung in der Bodenmitte und dem äußeren Bodenbereich unter Brennraumdruck andererseits .The invention is concerned with the problem of minimizing the stresses which occur on the valve disc, in particular in its base region, due to temperature and combustion chamber pressure, by means of an optimized disc geometry, in particular in its base region, while at the same time minimizing wall thicknesses. In doing so, particular attention should be paid to the overall deformation of the valve with regard to a displacement of the valve stem on the one hand and the deformation of the valve base between the support in the center of the base and the outer base area under combustion chamber pressure on the other hand.

Gelöst wird dieses Problem in erster Linie durch die Ausbildung eines gattungsgemäßen Gaswechselventiles nach dem kennzeichnenden Merkmal des Patentanspruchs 1. Vorteilhafte und zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This problem is solved primarily by the formation of a generic gas exchange valve according to the characterizing feature of patent claim 1. Advantageous and expedient embodiments of the invention are the subject of the dependent claims.

Die Erfindung beruht auf dem allgemeinen Gedanken, den Ventilboden bei einer insgesamt konvex nach außen geprägten Form durch ringförmige, um die Ventilachse umlaufende Si- ckenbereiche mit jeweils konvex nach außen verlaufendem Si- ckenquerschnitt zu verstärken. Dabei kann bereits eine einzige derartige Ringsicke, die auch als Torusabschnitt bezeichnet werden kann, zwischen der inneren Abstützung an dem Ventilschaft und der äußeren Anbindung an den Ventilkegel - ausreichend sein. Je nach Größe des Ventiltellers können auch mehrere innerhalb des Ventilbodens konzentrisch zueinander angeordnete Ringsicken vorgesehen werden. Darüber hinaus kann der Zentralbereich des Ventilbodens, wenn er an einen hohl ausgeführten Ventilschaft angrenzt, nach außen konvex oder konkav geformt sein. Die einzelnen Elemente des erfindungsgemäßen Gaswechselventiles sind bei einer Ausführung des Ventiles aus Metall in der Regel miteinander verschweißt .The invention is based on the general idea of reinforcing the valve base in the case of an overall convex shape by means of ring-shaped bead areas which run around the valve axis and each have a convex outward-facing cross-section. A single such ring bead, which can also be referred to as a toroidal section, between the inner support on the valve stem and the outer connection to the valve cone can be sufficient. Depending on the size of the valve plate, a plurality of annular beads arranged concentrically to one another within the valve base can also be provided. In addition, the central region of the valve base, when it adjoins a hollow valve stem, can be convex or concave to the outside. The individual elements of the gas exchange valve according to the invention are generally welded to one another when the valve is made of metal.

Bei dem in der Praxis allgemein verwendeten Begriff „Ventilkegel" ist „Kegel" mit Bezug auf dessen Form nicht streng mathematisch, sondern vielmehr im Sinne einer beliebigen Trichterform zu verstehen.In the term “valve cone”, which is generally used in practice, “cone” with regard to its shape is not to be understood strictly mathematically, but rather in the sense of any funnel shape.

Bei einer besonders vorteilhaften Ausgestaltung schließt der Ventilboden über einen Anschlusskragen an den Ventilkegel an. Der Anschluss erfolgt derart, dass die radial äußeren Randbereiche des Ventilbodens in der Form des Anschlusskragens einerseits sowie des Ventilkegels andererseits in einer von der Mantelfläche eines fiktiven, in der Ventilachse errichteten Kegels mit einer bezogen auf den Ventilkegel gleichgerichteten Verjüngung gebildeten Verbindungsfläche liegen und in dieser Kegelfläche gemeinsam in Richtung auf die Kegelbasisfläche auslaufen.In a particularly advantageous embodiment, the valve base closes the valve cone via a connecting collar on. The connection is made in such a way that the radially outer edge areas of the valve base in the form of the connecting collar on the one hand and the valve cone on the other hand lie in a conical surface formed by the lateral surface of a fictitious cone built in the valve axis with a tapering in the same direction as the valve cone run out together towards the cone base surface.

Durch eine solche Rand- beziehungsweise Anschlussgestaltung werden bei dem Ventil zusätzlich zu der dadurch erreichten erhöhten Ventilbodenstabilität insbesondere die Umströmungs- eigenschaften im Außenbereich des Ventilbodens verbessert. Eine Verbesserung wird auch bezüglich der Bearbeitung und der allgemeinen Bauteileigenschaften durch diese Ausbildung erreicht. Eine Gestaltung des Fügebereiches zwischen Ventil¬ teller und Ventilboden mit einem Anschluss- beziehungsweise Verbindungsbereich der vorstehend beschriebenen Art ist im Prinzip unabhängig von der sich radial nach innen anschließenden Gestaltung des Ventilbodens, das heißt im Prinzip für beliebig geformte Ventilböden gleichermaßen günstig.With such an edge or connection design, in addition to the increased valve base stability thereby achieved, the flow characteristics in particular in the outer region of the valve base are improved. An improvement is also achieved in terms of machining and general component properties through this training. Is a design of the joining region between the valve ¬ plate and valve bottom with a connection or connecting region of the type described above, in principle, independent of the radially adjacent to the inside configuration of the valve bottom, that is, in principle, arbitrarily shaped valve trays equally low.

Der von der Mäntelfläche des gedachten Kegels gegenüber dessen Basisfläche gebildete Kegelwinkel kann 180° - α mit α = 15° bis 45°, insbesondere 15° bis 35° messen.The cone angle formed by the outer surface of the cone in relation to its base surface can measure 180 ° - α with α = 15 ° to 45 °, in particular 15 ° to 35 °.

Vorteilhafte, nachstehend noch näher erläuterte Ausführungsformen der Erfindung sind in der Zeichnung dargestellt. In dieser zeigen jeweils im Längsquerschnitt hohle Ventilteller mit nachAdvantageous embodiments of the invention, explained in more detail below, are shown in the drawing. In this, hollow valve disks also show in longitudinal cross section

Fig. 1 einem durch eine einzelne Ringsicke verstärkten Ventilboden,1 a valve base reinforced by a single ring bead,

Fig. 2 einem Ventilboden nach Fig. 1 mit einem radial außen liegenden Anschluss-Kragen,2 a valve base according to FIG. 1 with a radially outer connection collar,

Fig. 3 einem Ventilboden nach Fig. 2 mit einem innerhalb des Ventiltellers aufgeweiteten Ventilschaft,3 shows a valve base according to FIG. 2 with a valve stem widened within the valve plate,

Fig. 4 einem Ventilboden nach Fig. 1 mit einer zusätzlichen, konvexen Ausbildung im Zentralbereich,4 shows a valve base according to FIG. 1 with an additional, convex design in the central area,

Fig. 5 einem Ventilboden in einer Grundform nach Fig. 2 mit einer zusätzlichen Ringsicke und einem Stützkegel innerhalb des Ventiltellers.5 shows a valve base in a basic form according to FIG. 2 with an additional ring bead and a support cone within the valve plate.

In den gezeichneten Ausführungsbeispielen sind die einzelnen Bauelemente des Ventiltellers aus Metall miteinander verschweißt, ohne dass die Schweißnähte als solche dargestellt sind.In the illustrated exemplary embodiments, the individual components of the valve plate made of metal are welded to one another without the weld seams being shown as such.

Wie alle gezeichneten Ausführungsbeispiele umfasst der erfindungsgemäße Ventilteller nach Fig. 1 einen Ventilboden 1, einen hohlen Ventilkegel 2 sowie einen hohlen Ventilschaft 3. Der Ventilboden 1 ist mit dem hohlzylindrisch aufsitzenden Ventilschaft 3 einerseits und dem Außenrand des Ventilkegels 2 andererseits verschweißt. Verschweißt ist auch das verjüngte Ende des Ventilkegels 2 mit dem Ventilschaft 3. Die miteinander verbundenen, vorgenannten Bauteile bilden gemeinsam ein biegesteifes Rotationsflächentragwerk. Der Ventilboden 1 weist einen weitgehend ebenen, zentralen Bereich 4 in der Bodenmitte auf. Der zwischen diesem zentralen Bereich 4 und dem äußeren Rand des Ventilbodens 1 liegende Ringbereich ist als Ringsicke 5, die auch als Torusabschnitt bezeichnet werden kann, mit einer nach außen konvexen Krümmung ausgeführt. Durch eine solche Auslegung kann bei einer Optimierung dieser Form die Summenbeanspruchung durch Temperatur und Brennraumspitzendruck minimiert und die Belastung durch eine Vergleichmäßigung der lokalen Belastungsmaxima reduziert werden.Like all the illustrated exemplary embodiments, the valve disk according to the invention according to FIG. 1 comprises a valve base 1, a hollow valve cone 2 and a hollow valve stem 3. The valve base 1 is welded to the hollow cylindrical valve stem 3 on the one hand and the outer edge of the valve cone 2 on the other hand. The tapered end of the valve cone 2 is also welded to the valve stem 3. The above-mentioned components which are connected to one another jointly form a rigid rotational surface structure. The valve base 1 has a largely flat, central area 4 in the center of the base. The ring area lying between this central area 4 and the outer edge of the valve base 1 is designed as an annular bead 5, which can also be referred to as a torus section, with an outwardly convex curvature. With such a design, when this shape is optimized, the total stress caused by temperature and combustion chamber peak pressure can be minimized and the load reduced by equalizing the local load maxima.

Bei dem Ventil nach Fig. 2 ist zusätzlich zwischen der Ringsicke 5 und einem radial außen liegenden Fügebereich 6 zwischen Ventilboden 1 und Ventilkegel 2 ein Anschluss-Kragen 7 angeformt .In the valve according to FIG. 2, a connecting collar 7 is additionally formed between the ring bead 5 and a radially outer joining area 6 between the valve base 1 and valve cone 2.

Der Anschlusskragen 7 grenzt an den Ventilkegel 2 in einer Verbindungsfläche an, die auf einer von der Mantelfläche eines fiktiven, in der Ventilachse errichteten Kegels mit einer bezogen auf den Ventilkegel 2 gleichgerichteten Verjüngung gebildet ist. Der Anschlusskragen 7 und der angrenzende Randbereich des Ventilkegels 2 laufen gemeinsam in dieser Kegelfläche in Richtung auf die Kegelbasisfläche aus. Der von der Mantelfläche des gedachten Kegels gegenüber dessen Basisfläche gebildete Kegelwinkel beträgt vorzugsweise 180° - α mit α = 15° bis 35°.The connecting collar 7 adjoins the valve cone 2 in a connecting surface which is formed on a conical surface, which is erected in the valve axis and has a taper which is the same in relation to the valve cone 2. The connecting collar 7 and the adjacent edge area of the valve cone 2 run out together in this conical surface in the direction of the conical base surface. The cone angle formed by the lateral surface of the imaginary cone in relation to its base surface is preferably 180 ° - α with α = 15 ° to 35 °.

Bei der Ventilausführung nach Fig. 3 ist abweichend zu der Ausführung nach Fig. 2 ein Ventilschaft 3 mit einem im Inneren des Ventiles aufgeweiteten Bereich 8 eingesetzt. Durch diesen aufgeweiteten Bereich 8 wird eine verbesserte Abstützung des Ventilbodens 1 in dessen Zentralbereich erreicht.In contrast to the embodiment according to FIG. 2, in the valve embodiment according to FIG. 3 a valve stem 3 with an area 8 widened inside the valve is used. This widened area 8 provides improved support for the valve base 1 in its central area.

Die Ventilausführung nach Fig. 4 unterscheidet sich von derjenigen nach Fig. 3 lediglich dadurch, dass der Ventilboden4 differs from that of FIG. 3 only in that the valve bottom

1 innerhalb des erweiterten Bereiches 8 des Ventilschaftes 3 nach außen konvex in einem Zentralbereich 9 gekrümmt ist.1 inside the enlarged area 8 of the valve stem 3 is convexly curved outwards in a central area 9.

Die Ausführung nach Fig. 5 baut auf einer Ventil-Grundform nach Fig. 2 auf. Im Unterschied zu der Ausführung nach Fig.5 is based on a basic valve shape according to FIG. 2. In contrast to the embodiment according to Fig.

2 ist im Inneren des Ventilkegels 2 ein Stützkegel 10 vorgesehen. In seinem verjüngten Bereich ist dieser Stützkegel 10 an den Ventilschaft 3 angeschweißt. An dem Ventilboden 1 ist der Stützkegel 10 ebenfalls angeschweißt. Der Bereich, in dem der Stützkegel 10 an dem Ventilboden 1 angeschweißt ist, liegt zwischen in dem Ventilboden 1 konzentrisch zueinander geformten Ringsicken 5' und. 11, die beide jeweils einen konvex nach außen verlaufenden Querschnitt besitzen. Der Ventilboden mit zwei konzentrisch zueinander verlaufenden Ringsicken 5' , 11 weist eine besonders gute Stabilität auf. Alle in der Beschreibung und in den nachfolgenden Ansprüchen dargestellten Merkmale können sowohl einzeln als auch in beliebiger Form miteinander erfindungswesentlich sein.2, a support cone 10 is provided in the interior of the valve cone 2. In its tapered area, this support cone 10 is welded to the valve stem 3. The support cone 10 is also welded to the valve base 1. The area in which the support cone 10 is welded to the valve base 1 lies between ring beads 5 ′ and 5 ′ that are formed concentrically to one another in the valve base 1. 11, both of which have a convex cross-section. The valve base with two concentric annular beads 5 ', 11 has particularly good stability. All of the features shown in the description and in the following claims can be essential to the invention both individually and in any form.

•k -k -k -k k • k -k -k -kk

Claims

Ansprüche Expectations 1. Gaswechselventil eines Verbrennungsmotors mit jeweils einem insbesondere hohlen Ventilschaft (3) und Ventilteller, bei dem1. Gas exchange valve of an internal combustion engine, each with a particularly hollow valve stem (3) and valve plate, in which - der Ventilteller einen Ventilboden (1) und einen mit dessen äußerem Rand verbundenen, hohlen Ventilkegel (2) u - fasst, wobei der Ventilkegel (2) sich mit von dem Boden zunehmendem Abstand verjüngt,- The valve disc holds a valve base (1) and a hollow valve cone (2) connected to its outer edge, the valve cone (2) tapering with increasing distance from the base, - der Ventilschaft (3) den hohlen Ventilkegel (2) durchläuft und jeweils fest einerseits mit dem Ventilboden (1) sowie andererseits mit dem verjüngten Ende des Ventilkegels (2) verbunden ist,the valve stem (3) passes through the hollow valve cone (2) and is firmly connected on the one hand to the valve base (1) and on the other hand to the tapered end of the valve cone (2), - das Ende des mit dem Ventilboden (1) verbundenen Ventilschaftes (3) über die Verbindungsebene zwischen Ventilkegel (2) und Ventilboden (1) hinausragt, dadurch gekennzeichnet, dass der Ventilboden (1) in dem zwischen seiner Anbindung an den Ventilschaft (3) einerseits und den Ventilkegel (2) andererseits liegenden Ringbereich radial benachbart mindestens eine Ringsicke (5; 5', 11) mit einer nach außen konvex verlaufenden Ringsickenquerschnittsflache aufweist.- The end of the valve stem (3) connected to the valve stem (1) protrudes beyond the connection plane between the valve cone (2) and the valve stem (1), characterized in that the valve stem (1) in the between its connection to the valve stem (3) on the one hand and the valve cone (2) on the other hand, the ring region lying radially adjacent has at least one ring bead (5; 5 ', 11) with an outwardly convex ring bead cross-sectional area. 2. Gaswechselventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Ventilschaft (3) an seinem mit dem Ventilboden (1) verbundenen Ende einen größeren Durchmesser als in seinem Anbindungsbereich an den Ventilkegel (2) besitzt.2. Gas exchange valve according to claim 1 or 2, characterized in that the valve stem (3) has a larger diameter at its end connected to the valve base (1) than in its connection area to the valve cone (2). 3. Gaswechselventil nach einem der vorhergehenden Ansprüche mit einem hohlen, zylindrisch offen an dem Ventilboden3. Gas exchange valve according to one of the preceding claims with a hollow, cylindrical open on the valve bottom (9) anliegenden Ventilschaft, dadurch gekennzeichnet, dass der Ventilboden (1) innerhalb seines an den Hohlraum des Ventilschaftes (3) angrenzenden Bereiches nach außen konvex gekrümmt ist.(9) adjacent valve stem, characterized in that the valve base (1) is convexly curved outward within its region adjacent to the cavity of the valve stem (3). 4. Gaswechselventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Ventilboden (1) innerhalb seines an den Hohlraum des Ventilschaftes (3) angrenzenden Bereiches von außen nach innen konkav gekrümmt ist.4. Gas exchange valve according to claim 1 or 2, characterized in that the valve base (1) within its area adjacent to the cavity of the valve stem (3) is curved concavely from the outside inwards. 5. Gaswechselventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass innerhalb des Ventilkegels (2) ein innerer Stützkegel (10) mit einer Anbindung an den Ventilboden (1) in einem zwischen zwei radial aneinander grenzenden Ventilboden- Ringsicken (5', 11) einerseits und in seinem verjüngten Bereich an den Ventilschaft (3) andererseits vorgesehen ist.5. Gas exchange valve according to one of the preceding claims, characterized in that within the valve cone (2) an inner support cone (10) with a connection to the valve base (1) in a between two radially adjacent valve bottom ring beads (5 ', 11) on the one hand and in its tapered area on the valve stem (3) on the other hand. 6. Gaswechselventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ringsicken (5; 5 , 11) einen parabel-, hyperbel- oder logarithmusförmig ausgelegten Querschnittsverlauf aufweisen.6. Gas exchange valve according to one of the preceding claims, characterized in that the ring beads (5; 5, 11) have a parabolic, hyperbolic or logarithmic cross-sectional shape. 7. Gaswechselventil eines Verbrennungsmotors mit jeweils einem Ventilschaft (3) und Ventilteller bei dem7. Gas exchange valve of an internal combustion engine, each with a valve stem (3) and valve plate in the - der Ventilteller einen Ventilboden (1) und einen mit dessen äußerem Rand verbundenen, hohlen Ventilkegel (2) um- fasst, wobei der Ventilkegel (2) sich mit von dem Ventilboden (1) zunehmendem Abstand verjüngt,the valve disc comprises a valve base (1) and a hollow valve cone (2) connected to its outer edge, the valve cone (2) tapering with increasing distance from the valve base (1), - der Ventilschaft (3) den hohlen Ventilkegel (2) durchläuft und jeweils fest einerseits mit dem Ventilboden (1) sowie andererseits mit dem verjüngten Ende des Ventilkegels (2) verbunden ist, nach insbesondere einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die radial äußeren Randbereiche des Ventilbodens (1) in der Form eines Anschlusskragens (7) einerseits sowie des Ventilkegels (2) andererseits in einer von der Mantelfläche eines fiktiven, in der Ventilachse errichteten Kegels mit einer bezogen auf den Ventilkegel (2) gleichgerichteten Verjüngung gebildeten Verbindungsfläche liegen und in dieser Kegelfläche gemeinsam in Richtung auf die Kegelbasisfläche auslaufen.- The valve stem (3) passes through the hollow valve cone (2) and is firmly connected on the one hand to the valve base (1) and on the other hand to the tapered end of the valve cone (2), according to in particular one of the preceding claims, characterized in that the radial outer edge areas of the valve base (1) in the form of a connecting collar (7) on the one hand and the valve cone (2) on the other hand lie in a connecting surface formed by the lateral surface of a fictitious cone built in the valve axis with a tapering oriented in relation to the valve cone (2) and run out together in this conical surface in the direction of the conical base surface. 8. Gaswechselventil nach Anspruch 7, dadurch gekennzeichnet, dass der von der Mantelfläche des gedachten Kegels gegenüber dessen Basisfläche gebildete Kegelwinkel 180° - α mit α = 15° bis 45° isst.8. Gas exchange valve according to claim 7, characterized in that the cone angle formed by the lateral surface of the cone in relation to its base surface eats 180 ° - α with α = 15 ° to 45 °. 9. Gaswechselventil nach Anspruch 8, dadurch gekennzeichnet, dass der Winkel α zwischen 15° und 35° liegt.9. Gas exchange valve according to claim 8, characterized in that the angle α is between 15 ° and 35 °. •k k k ~k - • kkk ~ k -
PCT/DE2005/000179 2004-03-03 2005-02-04 Gas exchange valve for an internal combustion engine Ceased WO2005085605A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05706738A EP1599658B1 (en) 2004-03-03 2005-02-04 Gas exchange valve for an internal combustion engine
JP2007501103A JP4708413B2 (en) 2004-03-03 2005-02-04 Gas exchange valve for internal combustion engine
US10/556,967 US7240895B2 (en) 2004-03-03 2005-02-04 Gas exchange valve for an internal combustion engine
DE502005000011T DE502005000011D1 (en) 2004-03-03 2005-02-04 GAS CHANGING VALVE OF A COMBUSTION ENGINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004010309.7 2004-03-03
DE102004010309A DE102004010309A1 (en) 2004-03-03 2004-03-03 Gas exchange valve of an internal combustion engine

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WO2005085605A1 true WO2005085605A1 (en) 2005-09-15

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JP (1) JP4708413B2 (en)
DE (2) DE102004010309A1 (en)
WO (1) WO2005085605A1 (en)

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WO2017191272A1 (en) * 2016-05-04 2017-11-09 Mahle International Gmbh Gas exchange valve for an internal combustion engine
EP3450707A1 (en) * 2017-08-30 2019-03-06 MAN Truck & Bus AG Valve for a combustion engine
RU2779355C2 (en) * 2017-08-30 2022-09-06 Ман Трак Энд Бас Аг Valve for internal combustion engine

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DE102006061128B4 (en) * 2006-12-22 2015-06-11 Mahle International Gmbh Gas exchange valve of an internal combustion engine
WO2014155667A1 (en) * 2013-03-29 2014-10-02 日鍛バルブ株式会社 Hollow poppet valve
DE102013210899A1 (en) 2013-06-11 2014-12-11 Mahle International Gmbh Method for producing a built-up hollow valve
DE102013210900A1 (en) 2013-06-11 2014-12-11 Mahle International Gmbh Gas exchange valve of an internal combustion engine

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WO2017191272A1 (en) * 2016-05-04 2017-11-09 Mahle International Gmbh Gas exchange valve for an internal combustion engine
EP3450707A1 (en) * 2017-08-30 2019-03-06 MAN Truck & Bus AG Valve for a combustion engine
CN109578104A (en) * 2017-08-30 2019-04-05 曼卡车和巴士股份公司 Valve for internal combustion engine
EP3450707B1 (en) 2017-08-30 2020-09-30 MAN Truck & Bus SE Valve for a combustion engine
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RU2779355C2 (en) * 2017-08-30 2022-09-06 Ман Трак Энд Бас Аг Valve for internal combustion engine

Also Published As

Publication number Publication date
EP1599658A1 (en) 2005-11-30
JP4708413B2 (en) 2011-06-22
JP2007526419A (en) 2007-09-13
EP1599658B1 (en) 2006-05-17
DE502005000011D1 (en) 2006-06-22
DE102004010309A1 (en) 2005-09-22

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