WO1999005397A1 - Two-way gas valve - Google Patents
Two-way gas valve Download PDFInfo
- Publication number
- WO1999005397A1 WO1999005397A1 PCT/EP1998/004516 EP9804516W WO9905397A1 WO 1999005397 A1 WO1999005397 A1 WO 1999005397A1 EP 9804516 W EP9804516 W EP 9804516W WO 9905397 A1 WO9905397 A1 WO 9905397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- gas exchange
- tube
- funnel
- exchange valve
- 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
Links
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
- F01L3/12—Cooling of valves
- F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
-
- 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
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
-
- 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
Definitions
- the invention relates to a gas exchange valve with the features of the preamble of claim 1.
- the invention has for its object to provide another solution to the problem.
- materials with the lowest thermal expansion are used for the force-transmitting device, in particular for the rod or the tube.
- Magnetic materials with high magnetostriction, which decrease with increasing temperature, are particularly suitable, which results in a decrease in volume, which largely compensates for a temperature-related expansion of the material. So with these materials in particular in the temperature range from -30 ° C to + 50 ° C Thermal expansion coefficient reached with low values down to 2 x 10 "6 K " 1 .
- Materials with high magnetostriction are e.g. Nickel, iron-nickel as well as iron-cobalt and iron-aluminum alloys.
- a Fe-Ni alloy known under the name Invar steel with 36% ⁇ 0.5% nickel content is particularly preferably used, in which the following values are not exceeded: C ⁇ 0.04%, Si ⁇ 0.2%, Mn ⁇ 0.4%, P ⁇ 0.01% and S ⁇ 0.015%.
- this alloy has a particularly low thermal expansion with a minimum of about 2 x 10 "6 K " 1 .
- Other nickel components are also possible at the expense of minimal thermal expansion, with alloys with 30-50% nickel the thermal expansion being less than 10 x 10 "6 K " 1 .
- Steels with 42-55% nickel have thermal expansions that are comparable to that of glass.
- the invention is of particular interest for electromagnetic valve actuations, because problems would arise there when realizing hydraulic valve lash compensation.
- a cylinder head 7 is shown, in the gas channel 8, which acts as an outlet channel, fuel gases flow out, as indicated by an arrow 9.
- the gas exchange valve designated overall by 10, has a valve plate 11 and a valve stem 12.
- the valve plate 11 is directed against a combustion chamber 13. It has a plate part 14, the edge of which is designated 15.
- On the Edge 15 has a heat shield 16, preferably a ceramic plate.
- the heat shield 16 is attached to the plate part 14.
- the valve stem 12 has a tube 30.
- a first discharge funnel 25 which is preferably made of aluminum sheet, encloses the tube 30 with its upper, tapered end.
- the first discharge funnel 25 is fastened to the plate part 24 at its lower, enlarged end.
- the first discharge funnel 25 is only to be understood as an option; it can also be omitted. It serves for better cooling and heat dissipation of the valve plate 1.
- a second, outer discharge funnel 26 which is made of a ceramic material.
- the second discharge funnel 26 surrounds the valve stem 12 with its upper, tapered end. H. in the illustrated embodiment, the pipe 30.
- the lower, widened end of the second discharge funnel 26 is connected to the edge 15 of the plate part 14, for example by flanging, as indicated at 27.
- an inner space 28 remains between it and the tube 30 or the plate part 14 and specifically its inner membrane 20.
- an Invar rod 31 is provided in the interior of the tube 30, which causes the force transmission from the part 34 to the membrane 20.
- This rod is supported by a ring 35 on the outer tube as kink protection.
- the tube 30 is only a protective tube.
- Sodium 32 is filled between the Invar rod 31 and the tube 20 for heat dissipation.
- Other alkali metals are also possible.
- the Invar rod is shrunk into both the part 34 and the membrane 20. Other connection techniques are conceivable. It can be seen that the tube 30 is displaceable relative to the part 34. It contributes nothing to the power transmission and, when heated, shifts relative to part 34.
- Suitable materials for the force-transmitting part are generally materials with high magnetostriction, which decreases with increasing temperature, resulting in a A decrease in volume results, which largely compensates for a temperature-related expansion of the material.
- Materials with high magnetostriction are, for example, nickel, iron-nickel as well as iron-cobalt and iron-aluminum alloys.
- the Fe-Ni alloy known above under the name Invar steel with 36% ⁇ 0.5% nickel content can be used, in which the following values are not exceeded: C ⁇ 0.04%, Si ⁇ 0.2%, Mn ⁇ 0.4%, P ⁇ 0.01% and S ⁇ 0.015%.
- this alloy has a particularly low thermal expansion with a minimum of about 2 x 10 "6 K " 1 . It is also possible to use alloys with other nickel or cobalt contents, thermal expansions smaller than 10 x 10 "6 K " 1 being achieved with alloys with 30-50% nickel. Alloys with 42-55% nickel have thermal expansions comparable to that of glass.
- valve is shown cut on one side.
- the pipe 40 is made of Invar or a material with a small coefficient of expansion.
- This tube 40 is connected to the part 41 on which the force acts, for. B. by welding.
- a valve funnel 43 is attached, which has a shoulder 44 and connected to the valve plate at the edge and in the center, for. B. is laser welded.
- the tube 40 is inserted into the funnel 43, is supported on the shoulder 44 and is welded to the funnel 43.
- the tube has a kink protection in the form of beads 45.
- Fig. 2a shows a section through the tube in the area of the beads. A possible outer tube for protection is not shown in FIG. With this kink protection, the tube can be made very thin-walled and lightweight.
- Fig. 3 half of the lower part of the valve is shown.
- the tube is labeled 50, the funnel 53, the valve disk 52.
- the funnel 53 is connected to the valve plate 52 by flanges at the edge and in the center, possibly shrink-wrapped at 56.
- the connection of the tube 50 to the funnel can be realized in that a section 57 of the funnel is finished. (turned, ground) and that the pipe has shrunk in this area, which has a small step due to the fine machining.
- the inside of the tube 50 and possibly also the funnel is filled with sodium 59. Other alkali metals can also be used here.
- An outer tube 58 (protective tube) is also provided here.
- beads can be provided in the inner tube as kink protection.
- FIG. 4 largely corresponds to that of FIG. 3.
- the funnel 63 is welded to the valve disk at 67.
- the tube 60 is also welded to the funnel 63 at 68; and finally the outer tube is welded to the funnel at 69.
- a bead 65 is visible here. The beads protrude into the valve guide at the inlet valve, up to the valve guide at the outlet valve.
- the exhaust valve can be designed like the intake valve.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Lift Valve (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Gaswechselventil Gas exchange valve
Die Erfindung betrifft ein Gaswechselventil mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a gas exchange valve with the features of the preamble of claim 1.
Bei den bekannten Ventilen wird die größere Längenausdehnung des Ventils gegenüber den Zylinderkopf dadurch verringert, daß ein hydraulischer Spielausgleich verwendet wird.In the known valves, the greater linear expansion of the valve compared to the cylinder head is reduced in that hydraulic play compensation is used.
Diese ist relativ aufwendig, erfordert zusätzliche bewegliche Massen und benötigt Leistung aus der hydraulischen Pumpe. Bei elektromagnetischer Ventilsteuerung ist der hydraulische Ventilspieiausgleich nur teilweise einsetzbar, da bei einer größeren Unsymetrie der aus den beiden Rückstellfedern des Magnetsystems resultierenden Kraft die Hubarbeit des Magneten ungünstig beeinflußt wird. Außerdem ist das Gewicht des Ventils sehr wichtig, da es direkt in die beweglichen Massen eingeht und damit nennenswert zum Leistungsverbrauch des Ventilantriebes beiträgt.This is relatively complex, requires additional moving masses and requires power from the hydraulic pump. In the case of electromagnetic valve control, the hydraulic valve balance compensation can only be used in part, since with a greater asymmetry of the force resulting from the two return springs of the magnet system, the lifting work of the magnet is adversely affected. In addition, the weight of the valve is very important because it goes directly into the moving masses and thus contributes significantly to the power consumption of the valve drive.
Der Erfindung liegt die Aufgabe zu Grunde eine andere Lösung des Problems zu schaffen.The invention has for its object to provide another solution to the problem.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.
Die Ansprüche 2 und 8 und die darauf zurück bezogenen Unteransprüche offenbaren zwei etwas unterschiedliche Lösungswege der Erfindung mit unterschiedlichen Ausbildungen.Claims 2 and 8 and the subclaims relating to them disclose two somewhat different approaches to the invention with different designs.
Hierbei werden für die die Kraft übertragende Einrichtung, insbesondere für den Stab oder das Rohr Materialien mit geringster Wärmeausdehnung eingesetzt. Besonders geeignet sind Magnetwerkstoffe mit hoher Magnetostriktion, die mit steigender Temperatur abnimmt, woraus eine Volumenabnahme resultiert, welche eine temperaturbedingte Ausdehnung des Materials weitgehend kompensiert. So werden mit diesen Materialien insbesondere im Temperaturbereich von -30°C bis +50°C Wärmeausdehnungskoeffizienten mit niedrigen Werten bis hinab zu 2 x 10"6 K"1 erreicht.Here, materials with the lowest thermal expansion are used for the force-transmitting device, in particular for the rod or the tube. Magnetic materials with high magnetostriction, which decrease with increasing temperature, are particularly suitable, which results in a decrease in volume, which largely compensates for a temperature-related expansion of the material. So with these materials in particular in the temperature range from -30 ° C to + 50 ° C Thermal expansion coefficient reached with low values down to 2 x 10 "6 K " 1 .
Werkstoffe mit hoher Magnetostriktion sind z.B. Nickel, Eisen-Nickel- sowie Eisen- Kobalt- und Eisen-Aluminium-Legierungen.Materials with high magnetostriction are e.g. Nickel, iron-nickel as well as iron-cobalt and iron-aluminum alloys.
Besonders bevorzugt eingesetzt wird eine unter der Bezeichnung Invar-Stahl bekannte Fe-Ni-Legierung mit 36% ± 0,5% Nickelanteil bei der weiterhin folgende Werte nicht überschritten werden: C<0,04%, Si<0,2%, Mn<0,4%, P<0,01 % und S<0,015%.A Fe-Ni alloy known under the name Invar steel with 36% ± 0.5% nickel content is particularly preferably used, in which the following values are not exceeded: C <0.04%, Si <0.2%, Mn <0.4%, P <0.01% and S <0.015%.
Diese Legierung weist bis etwa 200°C eine besonders geringe Wärmeausdehnung mit einem Minimum von etwa 2 x 10"6 K"1 auf. Auf Kosten der minimalen Wärmeausdehnung sind auch andere Nickelanteile möglich, wobei bei Legierungen mit 30-50% Nickel die Wärmeausdehnung kleiner als 10 x 10"6 K"1 ist. Stähle mit 42- 55% Nickel weisen Wärmeausdehnungen auf, die vergleichbar mit der von Glas sind.Up to about 200 ° C, this alloy has a particularly low thermal expansion with a minimum of about 2 x 10 "6 K " 1 . Other nickel components are also possible at the expense of minimal thermal expansion, with alloys with 30-50% nickel the thermal expansion being less than 10 x 10 "6 K " 1 . Steels with 42-55% nickel have thermal expansions that are comparable to that of glass.
Die Erfindung ist insbesondere für elektromagnetische Ventilansteuerungen von Interesse, weil sich dort bei der Realisierung eines hydraulischen Ventilspielausgleichs Probleme ergeben würden.The invention is of particular interest for electromagnetic valve actuations, because problems would arise there when realizing hydraulic valve lash compensation.
Anhand der Zeichnung werden Ausführungsbeispiele der Erfindung erläutert. Es zeigen:Exemplary embodiments of the invention are explained with the aid of the drawing. Show it:
Fig.1 ein erstes Ausführungsbeispiel mit einem Invarstab1 shows a first embodiment with an Invar rod
die Fig.2 bis 4 Ausführungsbeispiele mit einem Invarrohr.the Fig.2 to 4 embodiments with an Invar tube.
Bei dem in Fig. 1 dargestellten Ausführungsbeispiel ist ein Zylinderkopf 7 dargestellt, in dessen Gaskanal 8, der als Auslaßkanal wirkt, Brenngase abströmen, wie mit einem Pfeil 9 angedeutet.In the embodiment shown in FIG. 1, a cylinder head 7 is shown, in the gas channel 8, which acts as an outlet channel, fuel gases flow out, as indicated by an arrow 9.
Das insgesamt mit 10 bezeichnete Gaswechselventil weist einen Ventilteller 11 , sowie einen Ventilschaft 12 auf. Der Ventilteller 11 ist gegen einen Brennraum 13 gerichtet. Er weist ein Tellerteil 14 auf, dessen Rand mit 15 bezeichnet ist. Auf dem Rand 15 liegt ein Hitzeschild 16, vorzugsweise eine keramische Platte, auf. Der Hitzeschild 16 ist am Tellerteil 14 befestigt.The gas exchange valve, designated overall by 10, has a valve plate 11 and a valve stem 12. The valve plate 11 is directed against a combustion chamber 13. It has a plate part 14, the edge of which is designated 15. On the Edge 15 has a heat shield 16, preferably a ceramic plate. The heat shield 16 is attached to the plate part 14.
Der Ventilschaft 12 weist ein Rohr 30 auf.The valve stem 12 has a tube 30.
Ein erster Ableittrichter 25, der vorzugsweise aus Aluminiumblech besteht, schließt mit seinem oberen, verjüngten Ende das Rohr 30 ein. An seinem unteren, erweiterten Ende ist der erste Ableittrichter 25 am Tellerteil 24 befestigt. Der erste Ableittrichter 25 ist nur als Option zu verstehen, er kann auch entfallen. Er dient zur besseren Kühlung und Wärmeableitung des Ventiltellersl 1.A first discharge funnel 25, which is preferably made of aluminum sheet, encloses the tube 30 with its upper, tapered end. The first discharge funnel 25 is fastened to the plate part 24 at its lower, enlarged end. The first discharge funnel 25 is only to be understood as an option; it can also be omitted. It serves for better cooling and heat dissipation of the valve plate 1.
Wichtig ist demgegenüber ein zweiter, äußerer Ableittrichter 26, der aus einem keramischen Werkstoff besteht. Der zweite Ableittrichter 26 umschließt mit seinem oberen, verjüngten Ende den Ventilschaft 12, d. h. beim dargestellten Ausführungsbeispiel das Rohr 30. Das untere, erweiterte Ende des zweiten Ableittrichter 26 ist mit dem Rand 15 des Tellerteils 14 verbunden, beispielsweise durch Umbördeln, wie bei 27 angedeutet.In contrast, what is important is a second, outer discharge funnel 26, which is made of a ceramic material. The second discharge funnel 26 surrounds the valve stem 12 with its upper, tapered end. H. in the illustrated embodiment, the pipe 30. The lower, widened end of the second discharge funnel 26 is connected to the edge 15 of the plate part 14, for example by flanging, as indicated at 27.
Da der zweite Ableittrichter 26 nur eine gewisse Wandstärke aufweist, verbleibt zwischen ihm und dem Rohr 30 bzw. dem Tellerteil 14 und speziell dessen innerer Membran 20 ein Innenraum 28.Since the second discharge funnel 26 has only a certain wall thickness, an inner space 28 remains between it and the tube 30 or the plate part 14 and specifically its inner membrane 20.
Beim Ausführungsbeispiel der Fig.1 ist im Innern des Rohrs 30 ein Invarstab 31 vorgesehen, der die Kraftübertragung vom Teil 34 auf die Membran 20 bewirkt. Dieser Stab wird über einen Ring 35 am Außenrohr als Knickschutz abgestützt. Das Rohr 30 ist nur ein Schutzrohr. Zwischen dem Invarstab 31 und dem Rohr 20 ist zur Wärmeableitung Natrium 32 eingefüllt. Auch andere Alkalimetalle sind möglich. Der Invarstab ist sowohl in das Teil 34 , als auch die Membran 20 eingeschrumpft. Andere Verbindungstechniken sind denkbar. Man erkennt, daß das Rohr 30 gegenüber dem Teil 34 verschiebbar ist. Es trägt nichts zur Kraftübertragung bei und verschiebt sich bei Erwärmung gegenüber dem Teil 34.In the embodiment of FIG. 1, an Invar rod 31 is provided in the interior of the tube 30, which causes the force transmission from the part 34 to the membrane 20. This rod is supported by a ring 35 on the outer tube as kink protection. The tube 30 is only a protective tube. Sodium 32 is filled between the Invar rod 31 and the tube 20 for heat dissipation. Other alkali metals are also possible. The Invar rod is shrunk into both the part 34 and the membrane 20. Other connection techniques are conceivable. It can be seen that the tube 30 is displaceable relative to the part 34. It contributes nothing to the power transmission and, when heated, shifts relative to part 34.
Geeignet sind als Material für das kraftübertragende Teil allgemein Werkstoffe mit hoher Magnetostriktion, die mit steigender Temperatur abnimmt, woraus eine Volumenabnahme resultiert, welche eine temperaturbedingte Ausdehnung des Materials weitgehend kompensiert. Werkstoffe mit hoher Magnetostriktion sind z.B. Nickel, Eisen-Nickel- sowie Eisen-Kobalt- und Eisen-Aluminium-Legierungen.Suitable materials for the force-transmitting part are generally materials with high magnetostriction, which decreases with increasing temperature, resulting in a A decrease in volume results, which largely compensates for a temperature-related expansion of the material. Materials with high magnetostriction are, for example, nickel, iron-nickel as well as iron-cobalt and iron-aluminum alloys.
Eingesetzt werden kann die obengenannte unter der Bezeichnung Invar-Stahl bekannte Fe-Ni-Legierung mit 36% ± 0,5% Nickelanteil bei der weiterhin folgende Werte nicht überschritten werden: C<0,04%, Si<0,2%, Mn<0,4%, P<0,01 % und S<0,015%.The Fe-Ni alloy known above under the name Invar steel with 36% ± 0.5% nickel content can be used, in which the following values are not exceeded: C <0.04%, Si <0.2%, Mn <0.4%, P <0.01% and S <0.015%.
Diese Legierung weist bis etwa 200°C eine besonders geringe Wärmeausdehnung mit einem Minimum von etwa 2 x 10"6 K"1 auf. Es ist ebenfalls möglich Legierungen mit anderen Nickel- oder auch Kobaltanteilen einzusetzen, wobei Wärmeausdehnungen kleiner als 10 x 10"6 K"1 bei Legierungen mit 30-50% Nickel erreicht werden. Legierungen mit 42-55% Nickel weisen Wärmeausdehnungen auf, die vergleichbar mit der von Glas sind.Up to about 200 ° C, this alloy has a particularly low thermal expansion with a minimum of about 2 x 10 "6 K " 1 . It is also possible to use alloys with other nickel or cobalt contents, thermal expansions smaller than 10 x 10 "6 K " 1 being achieved with alloys with 30-50% nickel. Alloys with 42-55% nickel have thermal expansions comparable to that of glass.
Beim Ausführungsbeispiel der Fig.2 ist das Ventil halbseitig geschnitten gezeigt. Hier ist das Rohr 40 aus Invar oder einem Material mit kleinem Ausdehnungskoeffizienten. Dieses Rohr 40 ist mit dem Teil 41 , auf das die Kraft einwirkt verbunden, z. B. durch Schweißung. Am Ventilteller 42 ist ein Ventiltrichter 43 angesetzt, der einen Absatz 44 aufweist und mit dem Ventilteller am Rand und mittig verbunden, z. B. lasergeschweißt ist.In the embodiment of Figure 2, the valve is shown cut on one side. Here the pipe 40 is made of Invar or a material with a small coefficient of expansion. This tube 40 is connected to the part 41 on which the force acts, for. B. by welding. At the valve plate 42, a valve funnel 43 is attached, which has a shoulder 44 and connected to the valve plate at the edge and in the center, for. B. is laser welded.
Das Rohr 40 ist in den Trichter 43 eingeführt, stützt sich am Absatz 44 ab und ist mit dem Trichter 43 verschweißt. Das Rohr weist einen Knickschutz in Form von Sicken 45 auf. Ein Schnitt durch das Rohr im Bereich der Sicken zeigt Fig.2a. In Fig.2 ist ein mögliches Außenrohr zum Schutz nicht eingezeichnet. Durch diesen Knickschutz kann das Rohr sehr dünnwandig mit geringem Gewicht gestaltet werden.The tube 40 is inserted into the funnel 43, is supported on the shoulder 44 and is welded to the funnel 43. The tube has a kink protection in the form of beads 45. Fig. 2a shows a section through the tube in the area of the beads. A possible outer tube for protection is not shown in FIG. With this kink protection, the tube can be made very thin-walled and lightweight.
In Fig. 3 ist die Hälfte des unteren Teils des Ventils gezeigt. Das Rohr ist mit 50, der Trichter mit 53, der Ventilteller mit 52 bezeichnet. Hier ist der Trichter 53 durch Bördelungen am Rand und mittig mit dem Ventilteller 52 verbunden, eventuell bei 56 noch eingeschrumpft. Die Verbindung des Rohrs 50 mit dem Trichter kann dadurch realisiert sein, daß ein Abschnitt 57 des Trichters feinbearbeitet ist. (gedreht, geschliffen) und daß das Rohr in diesem Bereich, der ja wegen der Feinbearbeitung einen kleinen Absatz aufweist, eingeschrumpft ist. Das Innere des Rohrs 50 und gegebenenfalls auch des Trichters ist mit Natrium 59 gefüllt. Auch andere Alkalimetalle können hier eingesetzt werden. Es ist hier auch noch ein Außenrohr 58 (Schutzrohr) vorgesehen. Auch hier können im Innenrohr Sicken als Knickschutz vorgesehen sein.In Fig. 3 half of the lower part of the valve is shown. The tube is labeled 50, the funnel 53, the valve disk 52. Here the funnel 53 is connected to the valve plate 52 by flanges at the edge and in the center, possibly shrink-wrapped at 56. The connection of the tube 50 to the funnel can be realized in that a section 57 of the funnel is finished. (turned, ground) and that the pipe has shrunk in this area, which has a small step due to the fine machining. The inside of the tube 50 and possibly also the funnel is filled with sodium 59. Other alkali metals can also be used here. An outer tube 58 (protective tube) is also provided here. Here too, beads can be provided in the inner tube as kink protection.
Das Ausführungsbeispiel der Fig. 4 entspricht weitgehend dem der Fig. 3. Hier ist der Trichter 63 bei 67 mit dem Ventilteller verschweißt. Auch das Rohr 60 ist bei 68 mit dem Trichter 63 verschweißt; und schließlich ist das Außenrohr bei 69 mit dem Trichter verschweißt. Hier ist eine Sicke 65 sichtbar. Die Sicken ragen beim Einlaßventil in die Ventilführung hinein, beim Auslaßventil bis an die Ventilführung heran. Bei einer Lösung mit zusätzlichem Innendruck im Zylindergehäuse kann das Auslaßventil wie das Einlaßventil gestaltet werden. The embodiment of FIG. 4 largely corresponds to that of FIG. 3. Here, the funnel 63 is welded to the valve disk at 67. The tube 60 is also welded to the funnel 63 at 68; and finally the outer tube is welded to the funnel at 69. A bead 65 is visible here. The beads protrude into the valve guide at the inlet valve, up to the valve guide at the outlet valve. In a solution with additional internal pressure in the cylinder housing, the exhaust valve can be designed like the intake valve.
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB988013932A CN1160750C (en) | 1997-09-23 | 1998-07-21 | Switch |
| EP98943746A EP0998622A1 (en) | 1997-07-22 | 1998-07-22 | Two-way gas valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997131382 DE19731382A1 (en) | 1997-07-22 | 1997-07-22 | Gas exchange valve and method for measuring the pressure in a combustion chamber of an internal combustion engine |
| DE19731382.5 | 1997-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999005397A1 true WO1999005397A1 (en) | 1999-02-04 |
Family
ID=7836473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1998/004516 Ceased WO1999005397A1 (en) | 1997-07-22 | 1998-07-22 | Two-way gas valve |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0998622A1 (en) |
| DE (1) | DE19731382A1 (en) |
| WO (1) | WO1999005397A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10354074A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| DE10354085A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| DE10354076A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| US7862007B2 (en) * | 2003-11-19 | 2011-01-04 | Daimler Ag | Lightweight valve |
| US7905468B2 (en) | 2003-11-19 | 2011-03-15 | Daimler Ag | Lightweight valve |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10312491B3 (en) * | 2003-03-20 | 2005-02-03 | Robert Bosch Gmbh | Pressure sensor with heat shield for use in internal combustion engines |
| GB2445761A (en) * | 2007-01-22 | 2008-07-23 | Lotus Car | An internal combustion engine with in-cylinder pressure measurement system |
| DE102013210900A1 (en) | 2013-06-11 | 2014-12-11 | Mahle International Gmbh | Gas exchange valve of an internal combustion engine |
| DE102017004835A1 (en) | 2017-05-19 | 2017-11-23 | Daimler Ag | Gas exchange valve for an internal combustion engine and method for producing such |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1727621A (en) * | 1928-02-18 | 1929-09-10 | Gen Motors Corp | Exhaust valve |
| US2371548A (en) * | 1943-12-06 | 1945-03-13 | Thomas F Saffady | Valve |
| FR2540176A1 (en) * | 1983-01-27 | 1984-08-03 | Laing Oliver | VALVE FOR INTERNAL COMBUSTION ENGINES |
| EP0709552A2 (en) * | 1994-10-31 | 1996-05-01 | Eaton Corporation | Temperature control in an ultra light engine valve |
-
1997
- 1997-07-22 DE DE1997131382 patent/DE19731382A1/en not_active Withdrawn
-
1998
- 1998-07-22 WO PCT/EP1998/004516 patent/WO1999005397A1/en not_active Ceased
- 1998-07-22 EP EP98943746A patent/EP0998622A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1727621A (en) * | 1928-02-18 | 1929-09-10 | Gen Motors Corp | Exhaust valve |
| US2371548A (en) * | 1943-12-06 | 1945-03-13 | Thomas F Saffady | Valve |
| FR2540176A1 (en) * | 1983-01-27 | 1984-08-03 | Laing Oliver | VALVE FOR INTERNAL COMBUSTION ENGINES |
| EP0709552A2 (en) * | 1994-10-31 | 1996-05-01 | Eaton Corporation | Temperature control in an ultra light engine valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10354074A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| DE10354085A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| DE10354076A1 (en) * | 2003-11-19 | 2005-06-02 | Daimlerchrysler Ag | lightweight valve |
| DE10354085B4 (en) * | 2003-11-19 | 2005-11-24 | Daimlerchrysler Ag | lightweight valve |
| DE10354074B4 (en) * | 2003-11-19 | 2006-01-26 | Daimlerchrysler Ag | lightweight valve |
| DE10354076B4 (en) * | 2003-11-19 | 2006-03-09 | Daimlerchrysler Ag | lightweight valve |
| US7862007B2 (en) * | 2003-11-19 | 2011-01-04 | Daimler Ag | Lightweight valve |
| US7905468B2 (en) | 2003-11-19 | 2011-03-15 | Daimler Ag | Lightweight valve |
| US7941922B2 (en) | 2003-11-19 | 2011-05-17 | Daimler Ag | Method of manufacturing a lightweight valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19731382A1 (en) | 1999-01-28 |
| EP0998622A1 (en) | 2000-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69301463T2 (en) | EXHAUST CONTROL VALVE FOR INTERNAL COMBUSTION ENGINE | |
| DE2728823C2 (en) | Gas turbine | |
| EP0582985A1 (en) | Exhaust manifold | |
| DE2549256A1 (en) | THERMAL-INSULATED ARRANGEMENT FOR THE TRANSMISSION OF GASES UNDER HIGH TEMPERATURES | |
| EP2527743B1 (en) | Segment component comprising high temperature cast material for an annular combustion chamber, annular combustion chamber for an aircraft engine, aircraft engine and method for producing an annular combustion chamber | |
| DE60304191T2 (en) | Injector for fuel valve in a diesel engine and method of manufacturing an injector | |
| WO1999005397A1 (en) | Two-way gas valve | |
| DE3707904A1 (en) | Flap valve for an exhaust pipe of a motor vehicle | |
| EP1029154B1 (en) | Turbine housing and method for producing the same | |
| EP0963509B1 (en) | Gas shuttle valve, and method for measuring the pressure in the combustion chamber of an internal combustion chamber | |
| DE4124095A1 (en) | VALVE TOWEL WITH CERAMIC SUPPORT PLATE AND METHOD FOR THE PRODUCTION THEREOF | |
| EP3530400A1 (en) | Method for producing a component, in particular a vehicle component, and correspondingly manufactured component | |
| WO2006056315A1 (en) | Piston with a lightweight construction that is subjected to high thermal stress | |
| EP1888890A1 (en) | Air-gap insulated motor vehicle exhaust duct | |
| EP1386062A1 (en) | Liquid-cooled valve seat ring | |
| DE19908670C2 (en) | Pistons for internal combustion engines | |
| DE102005054616B3 (en) | Durable mold for light metal castings, especially cylinder heads, has a mold body with hollow zones to mold insert bodies to take the molten metal with shoulder in a positive fit at shaped holders and spaces to allow expansion of cold molds | |
| DE3042971C2 (en) | Housing for a gas turbine | |
| DE102020128883A1 (en) | Austenitic steel alloy and turbine housing or turbine housing component for an exhaust gas turbocharger | |
| EP0378797B1 (en) | Bimetallic flow guide shutter, especially for the exhaust systems of motor vehicles | |
| EP3252284A1 (en) | Combustion engine comprising two exhaust gas turbochargers | |
| DE8912161U1 (en) | Double-walled pipe | |
| DE102012004954B4 (en) | Exhaust manifold for an internal combustion engine | |
| DE102009060003A1 (en) | Krümmeranordnung | |
| DE19813590B4 (en) | Exhaust component for internal combustion engines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): BR CN JP KR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 1998943746 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09463426 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: KR |
|
| WWP | Wipo information: published in national office |
Ref document number: 1998943746 Country of ref document: EP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1998943746 Country of ref document: EP |