EP0853716B1 - Kipphebel für eine brennkraftmaschine - Google Patents
Kipphebel für eine brennkraftmaschine Download PDFInfo
- Publication number
- EP0853716B1 EP0853716B1 EP97918952A EP97918952A EP0853716B1 EP 0853716 B1 EP0853716 B1 EP 0853716B1 EP 97918952 A EP97918952 A EP 97918952A EP 97918952 A EP97918952 A EP 97918952A EP 0853716 B1 EP0853716 B1 EP 0853716B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rocker arm
- valve
- rolling element
- guide
- arm according
- 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
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
- F01L1/12—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
- F01L1/183—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft of the boat 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
- F01L2305/00—Valve arrangements comprising rollers
- F01L2305/02—Mounting of rollers
Definitions
- the invention relates to a rocker arm for valve control an internal combustion engine, the rocker arm from a stamped, deep-drawn and then heat-treated deep-drawn sheet is produced.
- rocker arms are from the prior art known, they are as a transmission element at three Types of engine control common for bumper engines with camshaft at the bottom, at the top Camshaft with rocker arm as direct transmission link between camshaft and valve and tappet control, rocker arm and tappet the transmission mechanism form.
- the mechanical valve setting at Sheet metal rocker arms are located on the ball socket bearing or at the rocker arm end with adjusting screws or Eccentric. This affects an adjustment on the Ball socket bearing the change in the lever ratio disadvantageous.
- the stand the technology used thumb rest on the valve side End of the rocker arm unfavorable friction on what to high lost friction and valve guide wear due to the lateral force of the valve stem.
- rocker arm In addition, the well-known deep-drawn rocker arms an additional anti-rotation device is required to hold the rocker arm to stabilize its longitudinal axis.
- Such one Rocker arm is described in DE 4024446 A1. The rocker arm is secured against rotation by a roller bearing stored.
- the present invention therefore has the problem (Task) based on the state of the art known to improve deep-drawn rocker arm and Reduce valve guide wear significantly Simplify manufacturing and to make it cheaper.
- the rocker arm is designed such that that it has opposite side parts, between which a roller body is rotatably arranged is.
- the rocker arm according to the invention very inexpensive to manufacture, since only deep-drawing and punching processes, but no machining required are.
- the heat treatment of the The deep-drawn part is then made by nitriding, Carburizing or case hardening.
- the valve setting takes place in the present case on the ball socket bearing by means of a ball nut and lock bolt or lock screw.
- the ball nut can corresponding shape of the rocker arm also semi-cylindrical or cylindrical guide stone with Lock nut can be used.
- the invention further provides before that the roller body in slots of the side parts is stored in the direction of the valve stem are open. This makes installation easy guaranteed and an additional locking of the Roll body saved in the warehouse because of the roll body due to the back pressure of the valve tappet in the bearing is held.
- roller body is loosely received in the slots. This will on the one hand the easy rotation and on the other hand easy assembly guaranteed.
- a highly advantageous embodiment of the invention provides that side guide parts in the two End regions of the roller body are provided, which overlap the valve stem on the side. This will a twisting of the Prevents rocker arm on the valve stem, i.e. the valve lever stabilized around its longitudinal axis. You can the side guide parts in one piece with the roller body be connected, i.e. protrude beyond its diameter, or be separate components. Important is doing that the tilting movement of the rocker arm and the Rolling of the roll body are not hindered.
- a further advantageous embodiment provides that the side guide parts are guide disks. Hereby you can use mass production parts that are available inexpensively.
- the rocker arm 1 consists of a deep-drawn sheet, the contours and recesses are punched out. Then the deep-drawing sheet is formed, in which the two side parts 3 to stiffen the Band 18 are bent perpendicular to it.
- the recess 8 serves to accommodate the ball nut and the bearing pin, and the roll body bed 5 serves to accommodate the Roller body and the guide disc 4. After the Reshaping takes place around the rocker arm better strength and surface properties to lend.
- Fig. 2 shows a plan view of the rocker arm 1 of the type according to the invention, the same parts with the same Reference numerals are provided.
- the roller body 10 is shown, which in the roller body bed 5 is arranged between the guide disks 4.
- FIG. 3 shows a section of the rocker arm 1 according to FIG. 1 in installed condition.
- Fig. 4 shows detail IV from Fig. 3, the clearly The guiding function of the guide disk 4 is recognizable, which includes the valve stem 22 on both sides. This prevents the rocker arm 1 from rotating and the rocker arm stabilized about its longitudinal axis.
- Fig. 5 shows a sectional view of the detail 4 in the direction of arrow V.
- the side walls 3 and the guide disks 4 and the roller body 10 and the valve stem 22 can be seen.
- the roller body 10 is freely rotatable in the roll body bed 5, wherein it is so fitted in the rolling body bed 5 that through the guide washers 4 only a very little play remains.
- Fig. 6 shows an exploded view of a rocker arm of the type according to the invention in which the side parts 3, the roll body bed 5 and the roll body 10 and the Guide discs 4 are shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
- Fig. 1
- einen Längsschnitt durch einen Kipphebel der erfindungsgemäßen Art;
- Fig. 2
- eine Draufsicht auf einen Kipphebel nach Fig. 1;
- Fig. 3
- einen Schnitt durch einen Kipphebel der erfindungsgemäßen Art in eingebautem Zustand;
- Fig. 4
- Detail IV aus Fig. 3;
- Fig. 5
- einen Schnitt in Pfeilrichtung V des Details aus Fig. 4; und
- Fig. 6
- eine dreidimensionale Teilansicht der Einzelteile eines Kipphebels der erfindungsgemäßen Art.
Claims (6)
- Kipphebel (1) für die Ventilsteuerung einer Brennkraftmaschine, wobei der Kipphebel (1) gegenüberliegende Seitenteile (3) aufweist, zwischen welchen ein Rollenkörper (10) drehbar aufgenommen ist, wobei der Kipphebel (1) aus einem gestanzten, tiefgezogenen und anschließend wärmebehandelten Tiefziehblech hergestellt ist,
dadurch gekennzeichnet,
daß der Rollenkörper (10) in Schlitzen (5) der Seitenteile gelagert ist, die in Richtung des Ventilschafts (22) offen sind. - Kipphebel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Rollenkörper (10) lose in den Schlitzen (5) aufgenommen ist. - Kipphebel nach Anspruch 1,
dadurch gekennzeichnet,
daß Seitenführungsteile in den beiden Endbereichen des Rollenkörpers (10) vorgesehen sind, welche den Ventilschaft (22) seitlich übergreifen. - Kipphebel nach Anspruch 3,
dadurch gekennzeichnet,
daß die Seitenführungsteile zwischen den Seitenteilen (3) und dem Rollenkörper (10) angeordnet sind. - Kipphebel nach Anspruch 4,
dadurch gekennzeichnet,
daß die Seitenführungsteile Führungsscheiben (4) sind. - Kipphebel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Rollenkörper (10) mit abgesetzten Lagerenden versehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19631653A DE19631653A1 (de) | 1996-08-05 | 1996-08-05 | Kipphebel für eine Brennkraftmaschine |
DE19631653 | 1996-08-05 | ||
PCT/EP1997/004209 WO1998005850A1 (de) | 1996-08-05 | 1997-08-01 | Kipphebel für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0853716A1 EP0853716A1 (de) | 1998-07-22 |
EP0853716B1 true EP0853716B1 (de) | 2000-03-15 |
Family
ID=7801881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97918952A Expired - Lifetime EP0853716B1 (de) | 1996-08-05 | 1997-08-01 | Kipphebel für eine brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6003482A (de) |
EP (1) | EP0853716B1 (de) |
JP (1) | JPH11514068A (de) |
DE (2) | DE19631653A1 (de) |
WO (1) | WO1998005850A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816020A1 (de) | 1998-04-09 | 1999-10-14 | Volkswagen Ag | Schlepphebel |
US6302075B1 (en) * | 2000-01-07 | 2001-10-16 | Delphi Technologies, Inc. | Roller finger follower shaft retention apparatus |
DE10330882A1 (de) | 2003-07-09 | 2005-01-27 | Ina-Schaeffler Kg | Verfahren zur Herstellung eines Außenhebels eines schaltbaren Schlepphebels |
DE10330881A1 (de) * | 2003-07-09 | 2005-01-27 | Ina-Schaeffler Kg | Verfahren zur Herstellung eines Außenhebels eines schaltbaren Schlepphebels |
DE102004028667A1 (de) * | 2004-06-12 | 2005-12-29 | Ina-Schaeffler Kg | Hebelartiger Nockenfolger |
DE102005046897A1 (de) * | 2005-09-30 | 2007-04-05 | Schaeffler Kg | Kipphebel eines Ventiltriebs einer Brennkraftmaschine |
DE102007012734A1 (de) * | 2007-03-16 | 2008-09-18 | Schaeffler Kg | Kipphebel für einen Ventiltrieb einer Brennkraftmaschine |
DE102007019934A1 (de) | 2007-04-27 | 2008-11-06 | Daimler Ag | Kipphebel für die Ventilsteuerung einer Brennkraftmaschine |
JP2010144621A (ja) * | 2008-12-18 | 2010-07-01 | Yamabiko Corp | オーバーヘッドバルブ式エンジンの動弁装置 |
DE102010018712B4 (de) * | 2010-04-29 | 2022-01-20 | Audi Ag | Ventiltrieb für ein Gaswechselventil mit Wälzkontakt zwischen Nockenfolger und Ventilschaft |
DE102012219506A1 (de) * | 2012-10-02 | 2014-04-03 | Schaeffler Technologies Gmbh & Co. Kg | Hebelartiger Nockenfolger |
DE102013205533A1 (de) * | 2013-03-28 | 2014-10-02 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Montage eines Ventiltrieb einer Brennkraftmaschine |
JP6700089B2 (ja) * | 2016-04-08 | 2020-05-27 | 株式会社オティックス | ロッカアーム |
CN106968739B (zh) * | 2017-05-11 | 2022-08-05 | 杭州新坐标科技股份有限公司 | 一种轻量化高强度的柴油机滚轮摇臂 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1644750A (en) * | 1925-02-18 | 1927-10-11 | Gen Motors Res Corp | Valve-operating means |
FR614387A (fr) * | 1926-04-12 | 1926-12-13 | Ets Ballot Sa | Perfectionnements apportés aux culbuteurs de commande pour soupapes de moteurs |
US1802330A (en) * | 1929-05-24 | 1931-04-28 | Aeromarine Plane & Motor Compa | Valve mechanism |
DE2819356A1 (de) * | 1978-05-03 | 1979-11-08 | Bayerische Motoren Werke Ag | Schwinghebel fuer den ventiltrieb von brennkraftmaschinen |
US4829647A (en) * | 1987-12-14 | 1989-05-16 | Ford Motor Company | Method of making low friction finger follower rocker arms |
US4848180A (en) * | 1988-09-06 | 1989-07-18 | Henley Manufacturing Corporation | Low-friction, boat-type rocker arm |
US4944257A (en) * | 1989-09-27 | 1990-07-31 | Henley Manufacturing Holding Company, Inc. | Cold-formed rocker arm with bearing flanges and splash plate |
JPH0586817A (ja) * | 1991-09-30 | 1993-04-06 | Fuji Oozx Kk | エンジンバルブ駆動用ローラロツカアーム |
JP2805409B2 (ja) * | 1992-01-07 | 1998-09-30 | 三菱自動車工業株式会社 | 板金ローラロッカアームとその製造方法 |
US5273005A (en) * | 1993-03-11 | 1993-12-28 | General Motors Corporation | Enlarged shaft roller lifter with retention means |
-
1996
- 1996-08-05 DE DE19631653A patent/DE19631653A1/de not_active Ceased
-
1997
- 1997-08-01 JP JP10507604A patent/JPH11514068A/ja active Pending
- 1997-08-01 US US09/051,346 patent/US6003482A/en not_active Expired - Fee Related
- 1997-08-01 EP EP97918952A patent/EP0853716B1/de not_active Expired - Lifetime
- 1997-08-01 WO PCT/EP1997/004209 patent/WO1998005850A1/de active IP Right Grant
- 1997-08-01 DE DE59701254T patent/DE59701254D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0853716A1 (de) | 1998-07-22 |
WO1998005850A1 (de) | 1998-02-12 |
DE19631653A1 (de) | 1998-02-12 |
JPH11514068A (ja) | 1999-11-30 |
US6003482A (en) | 1999-12-21 |
DE59701254D1 (de) | 2000-04-20 |
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