DE102004060433A1 - Cam follower for actuating a gas exchange valve of an internal combustion engine - Google Patents
Cam follower for actuating a gas exchange valve of an internal combustion engine Download PDFInfo
- Publication number
- DE102004060433A1 DE102004060433A1 DE102004060433A DE102004060433A DE102004060433A1 DE 102004060433 A1 DE102004060433 A1 DE 102004060433A1 DE 102004060433 A DE102004060433 A DE 102004060433A DE 102004060433 A DE102004060433 A DE 102004060433A DE 102004060433 A1 DE102004060433 A1 DE 102004060433A1
- Authority
- DE
- Germany
- Prior art keywords
- cam follower
- gas exchange
- combustion engine
- internal combustion
- 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.)
- Withdrawn
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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating 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
- 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
-
- 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
- F01L1/181—Centre pivot rocking arms
- F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
-
- 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-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Die Erfindung bezieht sich auf einen Nockenfolger (1) zur Betätigung eines Gaswechselventils (2) einer Brennkraftmaschine, der sich an einem ersten Ende (5) über ein Gelenkelement (6) auf dem Gaswechselventil (2) und an einem zweiten Ende (7) auf einem Gehäuse der Brennkraftmaschine abstützt. DOLLAR A Um einen Nockenfolger (1) zur Betätigung eines Gaswechselventils (2) einer Brennkraftmaschine zu schaffen, welcher bei gleichzeitiger Verminderung der Flächenpressung zwischen Ventilschaftendfläche (10) und Nockenfolgerkontaktfläche (11) und vereinfachter Herstellung des Nockenfolgers (1) das Gaswechselventil (2) mit mindestens zwei unterschiedlichen Betriebsmodi beaufschlagen kann, wird erfindungsgemäß vorgeschlagen, dass sich der Nockenfolger (1) über ein schaltbares Abstützelement (12) auf dem Gehäuse der Brennkraftmaschine abstützt.The invention relates to a cam follower (1) for actuating a gas exchange valve (2) of an internal combustion engine, which at a first end (5) via a joint element (6) on the gas exchange valve (2) and at a second end (7) a housing of the internal combustion engine is supported. To a cam follower (1) for actuating a gas exchange valve (2) to provide an internal combustion engine, which while reducing the surface pressure between Ventilschaftendfläche (10) and cam follower contact surface (11) and simplified production of the cam follower (1) the gas exchange valve (2) According to the invention, it is proposed that the cam follower (1) is supported on the housing of the internal combustion engine via a switchable support element (12).
Description
Die Erfindung betrifft einen Nockenfolger zur Betätigung eines Gaswechselventiles einer Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a cam follower for actuating a gas exchange valve an internal combustion engine according to the preamble of claim 1
Aus
der
Der Erfindung liegt die Aufgabe zugrunde, einen Nockenfolger zur Betätigung eines Gaswechselventiles einer Brennkraftmaschine zu schaffen, welcher bei gleichzeitiger Verminderung der Auslenkung zwischen Mittelpunkt der Ventilschaftendfläche sowie Mittelpunkt der Nockenfolgerkontaktfläche und vereinfachter Herstellung des Nockenfolgers das Gaswechselventil mit mindestens zwei unterschiedlichen Betriebsmodi beaufschlagen kann.Of the Invention is based on the object, a cam follower for actuating a Gas exchange valve to provide an internal combustion engine, which while reducing the deflection between center the valve stem end surface as well as the center of the cam follower contact surface and simplified manufacture the cam follower the gas exchange valve with at least two different operating modes can apply.
Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Patentanspruchs 1 gegebenen Merkmale gelöst.These The object is achieved by the dissolved in the characterizing part of claim 1 given characteristics.
Ein wesentlicher Vorteil der Erfindung besteht darin, dass sich der Nockenfolger über ein schaltbares Abstützelement auf einem Gehäuse der Brennkraftmaschine abstützt und somit eine Betätigung des Gaswechselventiles in unterschiedlichen Betriebsmodi möglich ist.One An essential advantage of the invention is that the Cam follower over a switchable support element on a housing the internal combustion engine is supported and thus an operation the gas exchange valve in different operating modes is possible.
Vorteilhafterweise ist durch die Integration eines Gelenkelementes in den Nockenfolger und die Ausbildung des Gelenkelementes ein großer Verfahrweg zwischen Ventilschaftendfläche und Kontaktfläche des Nockenfolgers möglich, ohne dass die Fläche, in welcher sich der Nockenfolger und das Ventilschaftende berühren, im Betrieb zu klein wird.advantageously, is due to the integration of a hinge element in the cam follower and the formation of the joint member a large travel between valve stem end face and contact area the cam follower possible, without the area, in which the cam follower and the valve stem end touch, in Operation becomes too small.
Vorteilhafterweise ist der Nockenfolger als einstückiger, gegossener Hebel ausgebildet, in welchen das einfach gestaltete Gelenkelement ohne weitere Verbindungselemente integrierbar ist. Hierdurch wird eine optimale Steifigkeit des Systems erreicht. Vorteilhafterweise kann als Gelenkelement der Körper eines konventionellen hydraulischen Spielausgleichselementes (Serienelement) verwendet werden, ohne die Mittel zur Ausführung der Ausgleichsfunktion.advantageously, is the cam follower as one piece, cast lever formed in which the simply designed Joint element can be integrated without further connecting elements. As a result, an optimal rigidity of the system is achieved. advantageously, can be used as a joint element of the body a conventional hydraulic clearance compensation element (serial element) be used without the means for performing the compensation function.
Weitere Ausgestaltungen und Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further Embodiments and advantages of the invention will become apparent from the other dependent claims and the description.
In den Zeichnungen ist im folgenden ein Ausführungsbeispiele der Erfindung mit weiteren Einzelheiten näher erläutert.In The drawings below is an embodiment of the invention with more details explained.
Dabei zeigen:there demonstrate:
Die
Das
Gaswechselventil
Um
bei gleichzeitiger Verminderung der Auslenkung zwischen Mittelpunkt
der Ventilschaftendfläche
Hierbei
handelt es sich um ein konventionelles schaltbares Abstützelement
Das
schaltbare Abstützelement
Wie
bereits erwähnt
stützt
sich der Nockenfolger
Der
Nockenfolger
Claims (12)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060433A DE102004060433A1 (en) | 2004-12-14 | 2004-12-14 | Cam follower for actuating a gas exchange valve of an internal combustion engine |
PCT/EP2005/012667 WO2006063673A1 (en) | 2004-12-14 | 2005-11-26 | Cam follower for actuating a gas exchange valve of an internal combustion engine |
JP2007544769A JP2008523295A (en) | 2004-12-14 | 2005-11-26 | Cam follower for operating a gas exchange valve of an internal combustion engine |
US11/818,061 US20080000440A1 (en) | 2004-12-14 | 2007-06-13 | Support arrangement for cam follower for actuating a gas exchange valve of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004060433A DE102004060433A1 (en) | 2004-12-14 | 2004-12-14 | Cam follower for actuating a gas exchange valve of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004060433A1 true DE102004060433A1 (en) | 2006-07-06 |
Family
ID=35511270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004060433A Withdrawn DE102004060433A1 (en) | 2004-12-14 | 2004-12-14 | Cam follower for actuating a gas exchange valve of an internal combustion engine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080000440A1 (en) |
JP (1) | JP2008523295A (en) |
DE (1) | DE102004060433A1 (en) |
WO (1) | WO2006063673A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102241002B (en) * | 2011-05-23 | 2013-02-13 | 宁波李氏实业有限公司 | Wrench for reflux valve of spraying pump |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123057A (en) * | 1964-03-03 | Valve chamber structure | ||
DE3215429C1 (en) * | 1982-04-24 | 1983-11-24 | Bayerische Motoren Werke AG, 8000 München | Sheet-metal rocker arm |
JPS5979018A (en) * | 1982-10-29 | 1984-05-08 | Isuzu Motors Ltd | Valve operating device for internal-combustion engine |
DE4026264A1 (en) * | 1990-08-20 | 1992-02-27 | Erich Schmid | IC engine with variable camshaft - produces varying, inlet valve, movement pattern, controlling load without throttle valve |
DE19652676A1 (en) * | 1996-12-18 | 1998-06-25 | Schaeffler Waelzlager Ohg | Actuating lever for a valve train of an internal combustion engine |
DE19850405A1 (en) * | 1998-11-02 | 2000-05-04 | Schaeffler Waelzlager Ohg | Valve drive tappet for internal combustion engine, with pivot unit as one-piece component of tappet with bearing surface in concave or convex spherical form |
DE19914044A1 (en) * | 1999-03-27 | 2000-09-28 | Schaeffler Waelzlager Ohg | Tappet built into cylinder head of engine valve drive, with axis led into elongated hole in bearing block on cylinder head |
DE19956159A1 (en) * | 1999-11-23 | 2001-05-31 | Schaeffler Waelzlager Ohg | Valve drive for IC engines has gas exchange valve switching elements and tolerance compensation element located separate from each other |
DE10220692A1 (en) * | 2002-05-10 | 2003-11-20 | Hydraulik Ring Gmbh | Valve stroke control for internal combustion engines of motor vehicles |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855981A (en) * | 1973-05-15 | 1974-12-24 | Ford Motor Co | Rocker arm |
JPS53123310U (en) * | 1977-03-09 | 1978-09-30 | ||
DE3210165A1 (en) * | 1982-03-19 | 1983-09-29 | Bayerische Motoren Werke AG, 8000 München | VALVE DRIVE |
DE4422340A1 (en) * | 1993-07-14 | 1995-01-19 | Bayerische Motoren Werke Ag | Shut-off device for an internal combustion engine lifting valve |
DE19505406A1 (en) * | 1995-02-17 | 1996-08-22 | Schaeffler Waelzlager Kg | Hydraulic tappet adjustment e.g. for IC engine |
DE19850404A1 (en) * | 1998-11-02 | 2000-05-04 | Schaeffler Waelzlager Ohg | tappet for valve drive of internal combustion engine, with knuckle joint having annular extension in region of its contact surface |
US6273042B1 (en) * | 1999-06-14 | 2001-08-14 | Amsted Industries Incorporated | Rocker assemblies for control of engine valves and method of assembling such rocker assemblies |
US6484682B2 (en) * | 2000-01-26 | 2002-11-26 | International Engine Intellectual Property Company, L.L.C. | Rocker arm assembly |
FR2807467B1 (en) * | 2000-04-05 | 2002-06-07 | Peugeot Citroen Automobiles Sa | INTERNAL COMBUSTION ENGINE FOR MOTOR VEHICLE |
US6837197B2 (en) * | 2003-03-19 | 2005-01-04 | Eaton Corporation | Dual valve lift and valve deactivation |
-
2004
- 2004-12-14 DE DE102004060433A patent/DE102004060433A1/en not_active Withdrawn
-
2005
- 2005-11-26 JP JP2007544769A patent/JP2008523295A/en not_active Abandoned
- 2005-11-26 WO PCT/EP2005/012667 patent/WO2006063673A1/en active Application Filing
-
2007
- 2007-06-13 US US11/818,061 patent/US20080000440A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123057A (en) * | 1964-03-03 | Valve chamber structure | ||
DE3215429C1 (en) * | 1982-04-24 | 1983-11-24 | Bayerische Motoren Werke AG, 8000 München | Sheet-metal rocker arm |
JPS5979018A (en) * | 1982-10-29 | 1984-05-08 | Isuzu Motors Ltd | Valve operating device for internal-combustion engine |
DE4026264A1 (en) * | 1990-08-20 | 1992-02-27 | Erich Schmid | IC engine with variable camshaft - produces varying, inlet valve, movement pattern, controlling load without throttle valve |
DE19652676A1 (en) * | 1996-12-18 | 1998-06-25 | Schaeffler Waelzlager Ohg | Actuating lever for a valve train of an internal combustion engine |
DE19850405A1 (en) * | 1998-11-02 | 2000-05-04 | Schaeffler Waelzlager Ohg | Valve drive tappet for internal combustion engine, with pivot unit as one-piece component of tappet with bearing surface in concave or convex spherical form |
DE19914044A1 (en) * | 1999-03-27 | 2000-09-28 | Schaeffler Waelzlager Ohg | Tappet built into cylinder head of engine valve drive, with axis led into elongated hole in bearing block on cylinder head |
DE19956159A1 (en) * | 1999-11-23 | 2001-05-31 | Schaeffler Waelzlager Ohg | Valve drive for IC engines has gas exchange valve switching elements and tolerance compensation element located separate from each other |
DE10220692A1 (en) * | 2002-05-10 | 2003-11-20 | Hydraulik Ring Gmbh | Valve stroke control for internal combustion engines of motor vehicles |
Also Published As
Publication number | Publication date |
---|---|
WO2006063673A1 (en) | 2006-06-22 |
JP2008523295A (en) | 2008-07-03 |
US20080000440A1 (en) | 2008-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8130 | Withdrawal |