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EP0332619B1 - Cylinder head cap - Google Patents

Cylinder head cap Download PDF

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Publication number
EP0332619B1
EP0332619B1 EP87906735A EP87906735A EP0332619B1 EP 0332619 B1 EP0332619 B1 EP 0332619B1 EP 87906735 A EP87906735 A EP 87906735A EP 87906735 A EP87906735 A EP 87906735A EP 0332619 B1 EP0332619 B1 EP 0332619B1
Authority
EP
European Patent Office
Prior art keywords
cover
cylinder head
presenting
injection
timing
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.)
Expired - Lifetime
Application number
EP87906735A
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German (de)
French (fr)
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EP0332619A1 (en
Inventor
Ludwig Elsbett
Günter Elsbett
Klaus Elsbett
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Individual
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Individual
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Publication date
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Publication of EP0332619A1 publication Critical patent/EP0332619A1/en
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Publication of EP0332619B1 publication Critical patent/EP0332619B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases
    • F02F7/006Camshaft or pushrod housings

Definitions

  • the invention relates to a cover for the cylinder head of an internal combustion engine.
  • cover hoods only have the task of closing the cylinder head at the top, so that no oil can be thrown out, and to dampen the noise of the valve control.
  • a hood which may be lined with insulating material, is placed on the cylinder head and e.g. sealed with the help of a rubber ring.
  • DE-AS 11 45 436 shows a control housing in which the valve control is installed.
  • This control housing is placed on the cylinder head and closed at the top with a cover. With this arrangement, the cylinder head is, so to speak, divided so that the complete valve control can be manufactured as a single component.
  • a cylinder head cover with an attached fuel pump is known. Through an opening in the hood, a drive pin extends through the hood onto a rocker arm, from which the energy for the drive is drawn.
  • an ignition distributor was used, which was mounted on the cylinder head cover and the distributor shaft was passed through it.
  • FR-A-2 495 225 a cover is known which has an elastic stop.
  • the control parts are made in a separate room and not in connection with the cover.
  • the solution is to design a hood of an internal combustion engine in such a way that it additionally performs actively controlling functions for the injection of the internal combustion engine and controls the operation of the internal combustion engine. This enables easy access, adjustment and manufacture of the entire injection control and reduces the space required for injection and control.
  • Fig. 1 shows schematically a cylinder head (1), which covers several cylinders, with the cylinder head cover (2) raised.
  • This cylinder head has an overhead camshaft (3), shown here for simplicity without cams, which drives a parallel-mounted control shaft (5) at its rear end via a pair of wheels (4).
  • a rotatably mounted lever (6) is adjusted by the controller, which is not dealt with in more detail here, which in turn acts on an actuating rod (7) for controlling the injection, which is likewise accommodated in the cylinder head.
  • the injection quantity can be set to zero delivery by means of a shut-off lever (8).
  • the throttle lever (10) is pivotally mounted about an axis (11) which passes through the cover. On its inner side it has a claw (12) which, when the hood is put on, couples with the pin (13) on the lever (6).
  • the rod (15) controlled by an expansion element (14) forms a temperature-dependent stop for the lever (6) on its opposite side from the adjusting rod Page (16). This is used, for example, to increase idle speed in the cold.
  • the vacuum box (17) controls a pin (18), which acts on the rack (8).
  • a fuel pump (19) is flanged to the rear end of the hood, the drive axis of which, when the hood is in place, is aligned with the regulator axis (5). Since the driver pins (20) and (21) lie on the same pitch circle around this axis, automatic coupling is also ensured here after mounting.
  • the adjusting screw (22). enables a variable stop of the throttle lever (10).
  • Fig. 1 shows a selection of possibilities of coupling the functional parts: longitudinal-transverse movement, swiveling, turning.
  • the operation as by hand (10), automatic (14), auxiliary control (17) or power delivery (20, 21) is arbitrary. It therefore goes without saying that in this way additional functional parts such as boost pressure stop (function like 17), manual shutdown or increasing the starting quantity by hand (function like 10) or early adjustment of the start of delivery when the engine is cold (function like 14) are integrated into the hood can be.
  • boost pressure stop function like 17
  • manual shutdown or increasing the starting quantity by hand
  • function like 14 early adjustment of the start of delivery when the engine is cold
  • the advantages of the invention are retained, e.g. Accessibility of the parts when the hood is lifted off and automatic coupling after refitting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

A covering cap for the cylinder head of an internal combustion engine has motor injection controlling parts. This makes it easier to mount the engine, saves space and makes it easier to carry out repairs. The mounting of the covering cap is associated with the coupling of the controlling parts with corresponding parts of the cylinder head.

Description

ZylinderkopfhaubeCylinder head cover

Die Erfindung betrifft eine Abdeckhaube für den Zylinderkopf einer Brennkraftmaschine.The invention relates to a cover for the cylinder head of an internal combustion engine.

Im herkömmlichen Motor- und Automobilbau haben Abdeckhauben lediglich die Aufgabe, den Zylinderkopf nach oben abzuschließen, so daß kein Öl herausgeschleudert werden kann, und das Geräusch der Ventilsteuerung zu dämmen. Zu diesem Zweck wird eine unter Umständen mit Dämmstoff ausgekleidete Haube auf den Zylinderkopf aufgesetzt und z.B. mit Hilfe eines Gummiringes abgedichtet. In der Haube befindet sich eine Öffnung zum Nachfüllen von Motoröl, die mit einem Deckel aus Metall oder Kunststoff verschlossen wird.In conventional engine and automobile construction, cover hoods only have the task of closing the cylinder head at the top, so that no oil can be thrown out, and to dampen the noise of the valve control. For this purpose, a hood, which may be lined with insulating material, is placed on the cylinder head and e.g. sealed with the help of a rubber ring. There is an opening in the hood for refilling engine oil, which is closed with a metal or plastic cover.

In der DE-AS 11 45 436 wird ein Steuergehäuse gezeigt, in das die Ventilsteuerung eingebaut ist. Dieses Steuergehäuse wird auf den Zylinderkopf aufgesetzt und oben mit einem Deckel verschlossen. Bei dieser Anordnung wird gewissermaßen der Zylinderkopf so geteilt, daß die komplette Ventilsteuerung als einheitliches Bauteil gefertigt werden kann.DE-AS 11 45 436 shows a control housing in which the valve control is installed. This control housing is placed on the cylinder head and closed at the top with a cover. With this arrangement, the cylinder head is, so to speak, divided so that the complete valve control can be manufactured as a single component.

Es ist ferner bekannt, Teile für Dekompression in der Haube zu integrieren, d.h. eine Vorrichtung, welche die Ventile zum leichteren Anwerfen von Hand offen hält.It is also known to incorporate parts for decompression in the hood, i.e. a device that keeps the valves open for easier starting by hand.

Aus der FR-1493453 ist eine Zylinderkopfhaube mit aufgesetzter Kraftstoffpumpe bekannt. Durch eine Öffnung in der Haube greift ein Antriebszapfen durch die Haube hindurch auf einen Kipphebel, von dem die Energie für den Antrieb abgenommen wird. Im 1,2 Liter Motor des Ford Taunus 12 m wurde ein Zündverteiler verwendet, der auf dem Zylinderkopfdeckel montiert war und dessen Verteilerwelle durch diesen hindurchgeführt wurde.From FR-1493453 a cylinder head cover with an attached fuel pump is known. Through an opening in the hood, a drive pin extends through the hood onto a rocker arm, from which the energy for the drive is drawn. In the 1.2 liter engine of the Ford Taunus 12 m an ignition distributor was used, which was mounted on the cylinder head cover and the distributor shaft was passed through it.

Aus der FR-A-2 495 225 ist eine Abdeckhaube bekannt, die einen elastischen Anschlag besitzt. Die Steuerteile sind in einem separaten Raum und nicht im Zusammenhang mit der Abdeckhaube gebildet.From FR-A-2 495 225 a cover is known which has an elastic stop. The control parts are made in a separate room and not in connection with the cover.

Es ist Aufgabe vorliegender Anmeldung, die Wartung und Montage von Motoren, bei denen die Einspritzung insbesondere im Zylinderkopf integriert ist, zu vereinfachen und den Raumbedarf des Aggregats beträchtlich zu verringern. Die Lösung besteht darin, eine Abdeckhaube einer Brennkraftmaschine so zu konzipieren, daß sie zusätzlich in Baueinheit aktiv steuernde Funktionen für die Einspritzung der Brennkraftmaschine wahrnimmt und den Betrieb der Brennkraftmaschine steuert. Das ermöglicht die leichte Zugänglichkeit, Einstellung und Fertigung der gesamten Einspritzregelung und verringert den Raumbedarf für Einspritzung und Steuerung.It is the task of the present application to simplify the maintenance and assembly of engines, in which the injection is integrated in particular in the cylinder head, and to considerably reduce the space requirement of the unit. The solution is to design a hood of an internal combustion engine in such a way that it additionally performs actively controlling functions for the injection of the internal combustion engine and controls the operation of the internal combustion engine. This enables easy access, adjustment and manufacture of the entire injection control and reduces the space required for injection and control.

Weitere Vorteile und die Lösung der Aufgabe lassen sich am besten anhand eines Ausführungsbeispiels aufzeigen.Further advantages and the solution to the problem can best be demonstrated using an exemplary embodiment.

Fig. 1 zeigt schematisch einen Zylinderkopf (1), der mehrere Zylinder überdeckt, mit abgehobener Zylinderkopfhaube (2). Dieser Zylinderkopf hat eine obenliegende Nockenwelle (3), hier der Einfachheit ohne Nocken dargestellt, die an ihrem hinteren Ende über ein Räderpaar (4) eine parallel gelagerte Reglerwelle (5) antreibt. Vom Regler, auf den hier nicht näher eingegangen wird, wird ein drehbar gelagerter Hebel (6) verstellt, der seinerseits auf eine Stellstange (7) zur Steuerung der ebenfalls im Zylinderkopf untergebrachten Einspritzung einwirkt. Mittels eines Abstellhebels (8) kann die Einspritzmenge auf Nullförderung gesetzt werden.Fig. 1 shows schematically a cylinder head (1), which covers several cylinders, with the cylinder head cover (2) raised. This cylinder head has an overhead camshaft (3), shown here for simplicity without cams, which drives a parallel-mounted control shaft (5) at its rear end via a pair of wheels (4). A rotatably mounted lever (6) is adjusted by the controller, which is not dealt with in more detail here, which in turn acts on an actuating rod (7) for controlling the injection, which is likewise accommodated in the cylinder head. The injection quantity can be set to zero delivery by means of a shut-off lever (8).

Nach Abheben der Haube (2) sind alle diese Teile zugänglich für Inspektion und Einstellung. Diese weist nun nicht nur einen Öleinfüllverschluß (9) auf, sondern eine Anzahl von Funktionsteilen, mit denen der Betrieb des Motors beeinflußt werden kann: Der Gashebel (10) ist um eine Achse (11) schwenkbar gelagert, welche durch den Deckel hindurch geht. An ihrer inneren Seite weist sie eine Klaue (12) auf, die beim Aufsetzen der Haube mit dem Stift (13) auf Hebel (6) kuppelt. Die durch ein Dehnstoffelement (14) gesteuerte Stange (15) bildet einen temperaturabhängig gesteuerten Anschlag für den Hebel (6) auf seiner der Stellstange gegenüberliegenden Seite (16). Das dient beispielsweise zur Leerlaufanhebung bei Kälte. Die Unterdruckdose (17) steuert einen Stift (18), der auf den Absteller (8) wirkt. Am hinteren Ende der Haube ist eine Kraftstoffpumpe (19) angeflanscht, deren Antriebsachse im aufgesetzten Zustand der Haube mit der Reglerachse (5) fluchtet. Da die Mitnehmerstifte (20) und (21) auf demselben Teilkreis um diese Achse liegen, ist auch hier eine automatische Ankuppelung nach dem Aufsetzen gewährleistet. Die Einstellschraube (22). ermöglicht einen variablen Anschlag des Gashebels (10).After lifting the hood (2) all these parts are accessible for inspection and adjustment. This now has not only an oil filler cap (9), but a number of functional parts with which the operation of the engine can be influenced: the throttle lever (10) is pivotally mounted about an axis (11) which passes through the cover. On its inner side it has a claw (12) which, when the hood is put on, couples with the pin (13) on the lever (6). The rod (15) controlled by an expansion element (14) forms a temperature-dependent stop for the lever (6) on its opposite side from the adjusting rod Page (16). This is used, for example, to increase idle speed in the cold. The vacuum box (17) controls a pin (18), which acts on the rack (8). A fuel pump (19) is flanged to the rear end of the hood, the drive axis of which, when the hood is in place, is aligned with the regulator axis (5). Since the driver pins (20) and (21) lie on the same pitch circle around this axis, automatic coupling is also ensured here after mounting. The adjusting screw (22). enables a variable stop of the throttle lever (10).

Im Prinzip zeigt Fig. 1 eine Auswahl von Möglichkeiten von Ankoppelung der Funktionsteile: Längs-quer-bewegung, Schwenken, Drehen. Auch die Betätigung wie von Hand (10), automatisch (14), hilfsgesteuert (17) oder kraftabgebend (20, 21) ist beliebig. Es versteht sich daher von-selbst, daß auf diese Weise weitere Funktionsteile wie Ladedruckanschlag (Funktion wie 17), Handabstellung oder Erhöhung der Startmenge von Hand (Funktion wie 10) oder Frühverstellung des Förderbeginns bei kaltem Motor (Funktion wie 14) in die Haube integriert werden können. Die Vorzüge der Erfindung bleiben dabei erhalten, z.B. Zugänglichkeit der Teile bei Abheben der Haube und automatisches Ankuppeln nach dem Wiederaufsetzen.In principle, Fig. 1 shows a selection of possibilities of coupling the functional parts: longitudinal-transverse movement, swiveling, turning. The operation as by hand (10), automatic (14), auxiliary control (17) or power delivery (20, 21) is arbitrary. It therefore goes without saying that in this way additional functional parts such as boost pressure stop (function like 17), manual shutdown or increasing the starting quantity by hand (function like 10) or early adjustment of the start of delivery when the engine is cold (function like 14) are integrated into the hood can be. The advantages of the invention are retained, e.g. Accessibility of the parts when the hood is lifted off and automatic coupling after refitting.

Fig. 2 zeigt eine dazugehörige mögliche Regelanordnung schematisch. Die Funktionszusammenhänge sind hier nur angedeutet. Z.B. verstellt die Reglerwelle (5a), angetrieben über das Rad (4a), über ihre Fliehgewichte (23) die Stellstange (7a), oder die Stellstange (7a) wird über Hebel (10a/6a) verstellt. Das Dehnstoffelement (14a) mit Stift (15a) bildet den temperaturabhängig gesteuerten Anschlag für Hebel (10a/ 6a). Die Unterdruckdose (17a) steuert den Stift (18a) und wirkt auf den Absteller (8a), usw. Es ist somit die Integration einer Regelanordnung im Zylinderkopf und deren Funkttionsteile in der Haube gezeigt.2 schematically shows an associated possible control arrangement. The functional relationships are only hinted at here. E.g. adjusts the control shaft (5a), driven via the wheel (4a), via its centrifugal weights (23), the adjusting rod (7a), or the adjusting rod (7a) is adjusted using levers (10a / 6a). The expansion element (14a) with pin (15a) forms the temperature-dependent stop for lever (10a / 6a). The vacuum box (17a) controls the pin (18a) and acts on the rack (8a), etc. The integration of a control arrangement in the cylinder head and its functional parts in the hood is thus shown.

Claims (7)

1. A cover (2) for a cylinder head (1) of an internal combustion engine, comprising an overhead cramshaft (3) and an injection timing device being arranged within the structural space between the exterior bearings of the cramshaft (3) and functional elements integrated in the cover for controlling and timing the injection of the internal combustion engine.
2. A cover (2) according to claim 1, wherein the parts performing control functions, automatically couple to elements incorporated in the cylinder head (1).
3. A cover (2) according to claims 1 and 2, presenting a throttle linkage (10) which comprises an adjustable stop (22) that couples to the timing device of an injection pump, integrated in the cylinder head (1).
4. A cover (2) according to claims 1 and 2, presenting a vacuum capsule (17) which acts upon a stop lever (8) by means of a pin (18) and couples to the timing device of an injection pump integrated in the cylinder head (1).
5. A cover (2) according to claims 1 and 2, which presents a thermostatically (14) controlled idle running stopper (15).
6. A cover (2) according to claims 1 and 2, presenting a boost pressure stop (such as 17/18).
7. A cover according to claims 1 and 2, presenting a thermostatically controlled floating element (such as 14/15), intended for the timing commencement of the injection pump.
EP87906735A 1986-11-06 1987-10-20 Cylinder head cap Expired - Lifetime EP0332619B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637804 1986-11-06
DE3637804 1986-11-06

Publications (2)

Publication Number Publication Date
EP0332619A1 EP0332619A1 (en) 1989-09-20
EP0332619B1 true EP0332619B1 (en) 1991-04-17

Family

ID=6313294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87906735A Expired - Lifetime EP0332619B1 (en) 1986-11-06 1987-10-20 Cylinder head cap

Country Status (9)

Country Link
EP (1) EP0332619B1 (en)
CN (1) CN1011154B (en)
AR (1) AR243972A1 (en)
AU (1) AU8078287A (en)
BR (1) BR8705994A (en)
DE (1) DE3769478D1 (en)
MX (1) MX161155A (en)
SU (1) SU1755712A3 (en)
WO (1) WO1988003606A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261375A (en) * 1989-11-06 1993-11-16 General Motors Corporation Fuel injection assembly for integrated induction system
US5003933A (en) * 1989-11-06 1991-04-02 General Motors Corporation Integrated induction system
US20140020649A1 (en) * 2012-07-19 2014-01-23 GM Global Technology Operations LLC Multi-directional asymmetric surfaces for housings and housing covers and internal combustion engines comprising the same
DE102012023836B4 (en) * 2012-12-06 2022-07-07 Man Energy Solutions Se Internal combustion engine in modular design

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191300132A (en) * 1913-01-02 1913-09-04 Standard Separator Co Improvements in and relating to Internal Combustion Engines.
DE1145436B (en) * 1961-09-13 1963-03-14 Hans Glas G M B H Iaisariaia M Control housing and valve control for piston internal combustion engines
FR1493453A (en) * 1966-04-27 1967-09-01 Peugeot New arrangement of a gasoline pump on an internal combustion engine
US3934568A (en) * 1974-07-23 1976-01-27 Leonid Mikhailovich Malyshev Crankshaft governor of an internal combustion engine
EP0009475B1 (en) * 1978-09-21 1982-12-29 Friedmann & Maier Aktiengesellschaft Control apparatus for diesel engines
GB2090911B (en) * 1980-11-28 1984-06-27 Yanmar Diesel Engine Co Overhead cam type diesel engine
AT376278B (en) * 1981-12-30 1984-10-25 Friedmann & Maier Ag REGULATOR FOR THE QUANTITY CONTROL OF INJECTION PUMPS OF AN INJECTION COMBUSTION ENGINE

Also Published As

Publication number Publication date
BR8705994A (en) 1988-06-14
AR243972A1 (en) 1993-09-30
CN87107604A (en) 1988-07-20
WO1988003606A1 (en) 1988-05-19
AU8078287A (en) 1988-06-01
SU1755712A3 (en) 1992-08-15
DE3769478D1 (en) 1991-05-23
MX161155A (en) 1990-08-09
CN1011154B (en) 1991-01-09
EP0332619A1 (en) 1989-09-20

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