DE102015011145A1 - Internal combustion engine device for a motor vehicle - Google Patents
Internal combustion engine device for a motor vehicle Download PDFInfo
- Publication number
- DE102015011145A1 DE102015011145A1 DE102015011145.0A DE102015011145A DE102015011145A1 DE 102015011145 A1 DE102015011145 A1 DE 102015011145A1 DE 102015011145 A DE102015011145 A DE 102015011145A DE 102015011145 A1 DE102015011145 A1 DE 102015011145A1
- Authority
- DE
- Germany
- Prior art keywords
- cam
- valve lever
- gas exchange
- engine device
- exchange valves
- 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.)
- Withdrawn
Links
Images
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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
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- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
-
- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating valves
- F01L2013/001—Deactivating cylinders
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Die Erfindung betrifft eine Brennkraftmaschinenvorrichtung (10a) für ein Kraftfahrzeug, mit zumindest zwei Gaswechselventilen (11a, 12a), mit zumindest einer Nockenwelle (15a), die zumindest ein axial verschiebbares Nockenelement (16a, 16b) mit zumindest einem mehrspurigen Nocken (17a, 17b) aufweist, der für eine Ventilhubumschaltung vorgesehen ist, und mit zumindest einem mit dem Nocken (17a, 17b) in Wirkverbindung stehenden Ventilhebel (25a), der dazu vorgesehen ist, die zumindest zwei Gaswechselventile (11a, 12a) gleichzeitig zu betätigen.The invention relates to an internal combustion engine device (10a) for a motor vehicle, comprising at least two gas exchange valves (11a, 12a), with at least one camshaft (15a) having at least one axially displaceable cam element (16a, 16b) with at least one multi-track cam (17a, 17b ), which is provided for a valve lift switching, and with at least one with the cam (17 a, 17 b) operatively connected valve lever (25 a), which is intended to actuate the at least two gas exchange valves (11 a, 12 a) simultaneously.
Description
Die Erfindung betrifft eine Brennkraftmaschinenvorrichtung für ein Kraftfahrzeug.The invention relates to an internal combustion engine device for a motor vehicle.
Es sind bereits Brennkraftmaschinenvorrichtungen für ein Kraftfahrzeug, mit mehreren Gaswechselventilen und mit einer Nockenwelle, die zumindest ein axial verschiebbares Nockenelement mit zumindest einem mehrspurigen Nocken aufweist, der für eine Ventilhubumschaltung vorgesehen ist, sowie mit mehreren Ventilhebeln, die dazu vorgesehen sind, jeweils eines der Gaswechselventile zu betätigen, bekannt.There are already internal combustion engine devices for a motor vehicle, with a plurality of gas exchange valves and a camshaft comprising at least one axially displaceable cam member with at least one multi-lane cam, which is provided for a valve lift, and with a plurality of valve levers, which are each provided one of the gas exchange valves to operate, known.
Der Erfindung liegt insbesondere die Aufgabe zugrunde, einen vorhandenen Bauraum vorteilhaft zu nutzen. Sie wird durch eine erfindungsgemäße Ausgestaltung entsprechend dem Anspruch 1 gelöst. Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.The invention is in particular the object of using an existing space advantageous. It is achieved by an embodiment according to the invention according to claim 1. Further developments of the invention will become apparent from the dependent claims.
Es wird eine Brennkraftmaschinenvorrichtung für ein Kraftfahrzeug, mit zumindest zwei Gaswechselventilen, mit zumindest einer Nockenwelle, die zumindest ein axial verschiebbares Nockenelement mit zumindest einem mehrspurigen Nocken aufweist, der für eine Ventilhubumschaltung vorgesehen ist, und mit zumindest einem mit dem Nocken in Wirkverbindung stehenden Ventilhebel, der dazu vorgesehen ist, die zumindest zwei Gaswechselventile gleichzeitig zu betätigen, vorgeschlagen. Dadurch kann mit einem einzigen Nockenpaket eine Ventilhubumschaltung für zwei Gaswechselventile realisiert werden. Dadurch kann ein axialer Bauraumbedarf der Brennkraftmaschinenvorrichtung verringert werden. Der durch den verringerten Bauraumbedarf frei werdende Bauraum kann beispielsweise für weitere Nockenspuren genutzt werden, insbesondere um einen mehrspurigen Nocken mit zumindest drei Nockenspuren zu realisieren. Ein vorhandener Bauraum kann dadurch besser genutzt werden. Unter einem „mehrspurigen Nocken” soll in diesem Zusammenhang ein Nocken mit zumindest zwei Teilnocken, vorzugsweise mit zumindest drei Teilnocken, die zur Betätigung eines einzelnen Gaswechselventils vorgesehen sind und die jeweils unterschiedliche Nockenspuren ausbilden, verstanden werden. Insbesondere stellen die unterschiedlichen Nockenspuren unterschiedliche Ventilhübe und/oder unterschiedliche Ventilsteuerzeiten zur Betätigung des einzelnen Gaswechselventils bereit, wie beispielsweise einen Teilnocken für Volllast, einen Teilnocken für Teillast und einen Teilnocken für eine Zylinderabschaltung.It is an internal combustion engine device for a motor vehicle, comprising at least two gas exchange valves, with at least one camshaft having at least one axially displaceable cam member with at least one multi-lane cam, which is provided for a valve lift, and with at least one valve lever operatively connected to the cam, which is intended to operate the at least two gas exchange valves simultaneously proposed. This can be realized with a single cam package Ventilhubumschaltung for two gas exchange valves. As a result, an axial space requirement of the internal combustion engine device can be reduced. The space available due to the reduced space requirement can be used, for example, for further cam tracks, in particular to realize a multi-lane cam with at least three cam tracks. An existing space can be used better. In this context, a "multi-track cam" should be understood to mean a cam with at least two partial cams, preferably with at least three partial cams, which are provided for actuating a single gas exchange valve and which respectively form different cam tracks. In particular, the different cam tracks provide different valve strokes and / or different valve timing for actuating the individual gas exchange valve, such as a partial cam for full load, a partial cam for partial load and a partial cam for a cylinder deactivation.
Des Weiteren wird vorgeschlagen, dass der Ventilhebel einen Nockenfolger, zwei Anlagepunkte für die Gaswechselventile und zwei Auflagepunkte zur Abstützung gegen einen Zylinderkopf aufweist, die, bezogen auf den Nockenfolger, den Anlagepunkten für Gaswechselventile gegenüberliegend angeordnet sind. Dadurch kann auf konstruktiv einfache Weise eine sichere Lagerung des Ventilhebels erreicht werden. Unter einem „Nockenfolger” soll in diesem Zusammenhang ein Bauteil des Ventilhebels verstanden werden, das dazu vorgesehen ist, in einem Kontakt mit dem Nocken eine Nockenspur des Nockens abzugreifen und ein Kurvenprofil der Nockenspur in eine Bewegung des Ventilhebels umzusetzen.Furthermore, it is proposed that the valve lever has a cam follower, two contact points for the gas exchange valves and two support points for support against a cylinder head, which, relative to the cam follower, the contact points for gas exchange valves are arranged opposite. As a result, a safe storage of the valve lever can be achieved in a structurally simple manner. A "cam follower" should be understood in this context, a component of the valve lever, which is intended to tap in a contact with the cam a cam track of the cam and implement a cam profile of the cam track in a movement of the valve lever.
Weiterhin wird vorgeschlagen, dass die Brennkraftmaschinenvorrichtung ein erstes Ausgleichselement aufweist, gegen das der Ventilhebel an einem der Auflagepunkte abgestützt ist und das eine Axiallage des Ventilhebels festlegt. Dadurch kann auf konstruktiv einfache Weise die Axiallage des Ventilhebels festgelegt werden.Furthermore, it is proposed that the internal combustion engine device has a first compensation element, against which the valve lever is supported at one of the support points and which defines an axial position of the valve lever. As a result, the axial position of the valve lever can be determined in a structurally simple manner.
Ferner wird vorgeschlagen, dass die Brennkraftmaschinenvorrichtung ein zweites Ausgleichselement aufweist, gegen das der Ventilhebel an einem der Auflagepunkte abgestützt ist und das einen Spielausgleich in einer Ebene bewirkt, die durch die Axiallage des Ventilhebels festgelegt ist. Dadurch kann auf konstruktiv einfache Weise ein Ausgleich eines Ventilspiels bewirkt werden.It is also proposed that the internal combustion engine device comprises a second compensating element, against which the valve lever is supported at one of the support points and which effects clearance compensation in a plane which is defined by the axial position of the valve lever. As a result, a compensation of a valve clearance can be effected in a structurally simple manner.
Weitere Vorteile ergeben sich aus der folgenden Figurenbeschreibung. In den Figuren sind zwei Ausführungsbeispiele der Erfindung dargestellt. Die Figuren, die Figurenbeschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages will become apparent from the following description of the figures. In the figures, two embodiments of the invention are shown. The figures, the description of the figures and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Dabei zeigen:Showing:
Die
Die Brennkraftmaschinenvorrichtung
Der mehrspurige Nocken
Der Ventilhebel
Die Brennkraftmaschinenvorrichtung
Der Ventilhebel
Die Brennkraftmaschinenvorrichtung
Die Brennkraftmaschinenvorrichtung
In einer alternativen Ausgestaltung können das erste Ausgleichselement
In der
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- BrennkraftmaschinenvorrichtungEngine device
- 1111
- GaswechselventilGas exchange valve
- 1212
- GaswechselventilGas exchange valve
- 1313
- Ventilschaftvalve stem
- 1414
- Ventilschaftvalve stem
- 1515
- Nockenwellecamshaft
- 1616
- Nockenelementcam member
- 1717
- Nockencam
- 1818
- Teilnockenpartial cams
- 1919
- Teilnockenpartial cams
- 2020
- Teilnockenpartial cams
- 2121
- Teilnockenpartial cams
- 2222
- Schaltkulisseshift gate
- 2323
- Kulissenbahnlink path
- 2424
- Kulissenbahnlink path
- 2525
- Ventilhebelvalve lever
- 2626
- Grundkörperbody
- 2727
- Nockenfolgercam follower
- 2828
- Anlagepunktcontact point
- 2929
- Anlagepunktcontact point
- 3030
- Auflagepunktsupport point
- 3131
- Auflagepunktsupport point
- 3232
- Ausgleichselementcompensation element
- 3333
- Ausgleichselementcompensation element
- 3434
- Zylinderkappecylinder cap
- 3535
- Kugelkalottespherical cap
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015011145.0A DE102015011145A1 (en) | 2015-08-25 | 2015-08-25 | Internal combustion engine device for a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015011145.0A DE102015011145A1 (en) | 2015-08-25 | 2015-08-25 | Internal combustion engine device for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015011145A1 true DE102015011145A1 (en) | 2016-03-10 |
Family
ID=55358563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015011145.0A Withdrawn DE102015011145A1 (en) | 2015-08-25 | 2015-08-25 | Internal combustion engine device for a motor vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102015011145A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113187575A (en) * | 2020-01-29 | 2021-07-30 | 马勒国际有限公司 | Camshaft assembly |
-
2015
- 2015-08-25 DE DE102015011145.0A patent/DE102015011145A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113187575A (en) * | 2020-01-29 | 2021-07-30 | 马勒国际有限公司 | Camshaft assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R230 | Request for early publication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |