EP0460988B1 - Steuervorrichtung mit Nockenwelle und Kraftübertragungsmittel mit Rolle - Google Patents
Steuervorrichtung mit Nockenwelle und Kraftübertragungsmittel mit Rolle Download PDFInfo
- Publication number
- EP0460988B1 EP0460988B1 EP91401298A EP91401298A EP0460988B1 EP 0460988 B1 EP0460988 B1 EP 0460988B1 EP 91401298 A EP91401298 A EP 91401298A EP 91401298 A EP91401298 A EP 91401298A EP 0460988 B1 EP0460988 B1 EP 0460988B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- semi
- cylindrical wall
- axis
- oil
- 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
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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
-
- 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
- F01L1/08—Shape of cams
-
- 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
- F01L1/14—Tappets; Push rods
- F01L1/143—Tappets; Push rods for use with overhead camshafts
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/101—Lubrication of valve gear or auxiliaries of cam surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/107—Lubrication of valve gear or auxiliaries of rocker shaft bearings
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20882—Rocker arms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Definitions
- the invention relates to camshaft control devices and roller force transmitting means, making it possible to transmit an alternating movement, which is communicated by the cam of a camshaft rotating in a constant direction around its axis, to a mechanical member which is driven by a reciprocating movement and which is held in abutment on said cam by elastic return means.
- These control devices are arranged to transmit the reciprocating movement to the mechanical member or else by means of a pusher carrying said roller and cooperating directly with said mechanical member (control by camshaft at the head), or indirectly by by means of a rocker arm oscillating around an axis and comprising a driving part which carries said roller and cooperates with the cam of the camshaft and a driven part which cooperates with the above-mentioned mechanical member.
- the invention relates more particularly to control devices in which the force transmitting means with rollers are highly mechanically loaded, that is to say capable of transmitting significant efforts to ensure the mechanical organ a very rapid lifting and large amplitude.
- the invention applies in particular, but not exclusively, to two-stroke engines with loop scanning, through the cylinder head, controlled exclusively by valves in order to actuate them.
- valves In order to actuate them.
- this section is compared to that of lights arranged in the jacket of or of each engine cylinder, it is indeed desirable to open the valves in the shortest possible time, giving the cam the "stiffest" profile possible.
- this type of two-stroke engine, with valve scanning generally has masks partially blocking the passage freed by the intake valve when it is open, in order to reduce short- air circuits between the intake and exhaust ports. The presence of these masks further reduces the flow section of the valves.
- a “substantially cylindrical roller” is a roller which has the shape of a cylinder of revolution, possibly with a slight bulge.
- the flanges are made in one piece with the driving part of the rocker arm.
- FIGS. 1 and 2 of these drawings represent a control device with camshaft and rocker arm established in accordance with the invention, in partial section respectively along lines I-I in FIG. 2 and II-II in FIG. 1.
- FIGS. 3 to 6 schematically represent each of the improvements made to the embodiment of FIGS. 1 and 2, by extracts on a larger scale of FIG. 1.
- FIG. 7 represents a variant of part of FIG. 2.
- FIG. 8 finally schematically represents a control device with camshaft and pusher.
- a known mechanism for controlling by camshaft 1 and rocker arm 2 generally comprises an axis 3 around which the rocker arm pivots 2.
- a roller 7 At the driving end of rocker arm 2 a roller 7, generally of a shape cylindrical. This roller 7 rolls, preferably without sliding, on the nose 8 of a cam 9 secured to the cam shaft 1.
- the driven end of the rocker arm 2 cooperates, generally by means of a spherical articulation 10, with a mechanical member driven by an alternating movement, generally rectilinear or approximately rectilinear, such as valve stem 11, rocker stem, element injection pump or other.
- FIG. 1 shows in solid line the valve head 14 in position d opening and in phantom in the closed position, in abutment on the seat 15.
- the roller 7 pivots on itself in a cavity 16 which is arranged in the driving part of the rocker arm 2 and delimited on the one hand by a circular semi-cylindrical wall 17, of axis XX parallel to the geometrical axis YY of rotation of the rocker arm 2 around the material axis 3 thereof and on the other hand by the interior walls of two plane lateral flanges 18 perpendicular to the axis XX of the semi-cylindrical wall 17.
- the direction of rotation of the roller, as well as that of the camshaft 1, will be chosen so that the extreme generator 20 is as close as possible to the axis 3.
- the flanges 18 are made in one piece with the driving part of the rocker arm 2, as shown diagrammatically in FIG. 2.
- the outlet for the arrival of pressurized oil 19 on the semi-cylindrical wall 17 is advantageously constituted by a transverse groove 21, arranged along the generator 20.
- the above-mentioned arrival of pressurized oil 19 is essentially constituted by a channel 22 formed in the body of the rocker arm 2 and communicating with the oil supply circuit (not shown) via a peripheral groove 23 formed in axis 3, with a radial passage 24 provided in axis 3 and a channel 25 pierced longitudinally in axis 3.
- the channel 22 can open directly into the groove 21, as shown in FIG. 1, or with the interposition of unidirectional means, located as close as possible to the outlet on the semi-cylindrical wall 17 and advantageously constituted by a non-return ball valve 26 , as shown in Figure 4, which has the effect of preventing the oil contained in the cavity 16 to be sucked back towards the channel 25 in the case of fluctuations in the pressure of the oil supply circuit.
- the roller 7 is used in the cavity 16 in the manner of a hydrostatic piston in a cylinder supplied with oil under pressure, and this advantageously extending, as shown in FIG. 3, the semi-cylindrical wall 17 d axis XX by two walls 27 parallel to each other and to axis XX and tangent respectively to the ends of this semi-cylindrical wall 17.
- the permanent supply (in operation) of a hydrodynamic oil film in the gap limited by the semi-cylindrical wall 17 and by the cylindrical surface of the roller 7, prevents wear by preventing any metal / metal contact between the roller 7 and the body of the rocker arm 2, it may be advantageous to coat the surfaces in relative motion, or at least the semi-cylindrical wall 17, with an anti-friction coating such as, for example, a cuprous electrolytic deposit.
- the roller 7 is full.
- the roller 7 is preferably hollow and pierced, right through, with an axial hole 32 whose diameter, taking into account the material of which this roller 7 is made, is sufficiently weak to prevent any permanent deformation of said roller 7, under the forces to which it is subjected in operation, but sufficiently large to allow the elastic deformation of this roller 7 in contact with the cam 9 so as to reduce the Hertz pressure of the contact.
- the inside diameter Di of the roller 7 is of the order of 70% of its outside diameter De.
- a spacer cylindrical circular 33 with an outside diameter less than the inside diameter Di of the hollow roller 7, is mounted in the axis XX of the semi-cylindrical wall 17, integrally with the two lateral flanges 18, in which case the tongues 28 are no longer necessary.
- a rocker control device is thus obtained, the operation of which is as follows.
- the oil arriving under pressure in the groove 21 is distributed in the cavity 16 by the rotating roller 7 and it is maintained there under an intermediate pressure which depends on the supply pressure and the section of the leakage passage formed by the clearance between the roller 7 and the walls of its housing.
- a film of hydrostatic oil is thus maintained between the roller 7 and its housing and not only ensures the lubrication of the roller, but also its suspension inside the housing allowing it to roll despite the absence of a material axis and its keeping pressed against the cam 9, without the appearance of the usual rattling.
- the pusher 34 acts directly on the mechanical member or valve stem 11 and in that the oil inlet channel 25 is disposed in the guide 35 of the pusher 34 and is connected to the channel 22 formed in the pusher 34 by means of an annular groove 36 formed at the periphery of the pusher 34.
- the operating mode and the advantages of the pusher control device 34 are identical to those of the rocker control devices 2 or can be easily deduced by specialists.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Claims (15)
- Vorrichtung zur Steuerung eines mechanischen Organs (11) zur hin- und hergehenden Bewegung mittels einer Nockenwelle (1) und einer Rolle (7), die durch einen Stößel oder einen Ventilkipphebel getragen ist, insbesondere für Verbrennungsmotoren, bestehend aus einer Belastungsübertragungseinrichtung von der Kurvenscheibe (9) dar Nockenwelle (1) zu dem mechanischen Organ (11) und mit einem führenden Teil, das eine im wesentlichen zylindrische Rolle (7) trägt, die mit der Kurvenscheibe (9) der Nockenwelle (1) zusammenwirkt, und einem geführten Teil, das zusammen mit dem führenden Teil ausgebildet ist und mit dem mechanischen Organ (11) zusammenwirkt,
wobei das mechanische Organ (11) sich zwischen zwei Endpositionen bewegt, von denen eine einer maximalen Verstellung der Rolle (7) auf der Kurvenscheibe (9) entspricht, und von denen die andere durch einen festen An schlag (15) bestimmt ist, auf dem das mechanische Organ (11) zur Anlage kommt, das durch eine elastische Rückstelleinrichtung (12) zurückgestellt wird, wenn die Rolle (7) mit dem abfallenden Teil (8a) der Nocke (8) der Kurvenscheibe (9) zusammenwirkt,- wobei die Rolle (7) sich um sich selbst in einem Hohlraum (16) dreht, der in dem führenden Teil ausgebildet und einerseits durch eine kreisförmig halbzylindrische Wandung (17) und andererseits durch die Innenwandungen von zwei ebenen Seitenflanschen (18) begrenzt ist, die lotrecht zur geometrischen Achse (X-X) der halbzylindrischen Wandung (17) verlaufen,- wobei die halbzylindrische Wandung (17) einen Radius (r) hat, der geringfügig größer ist als der Außenradius (r) der Rolle (7), so daß die Innenwandungen der Seitenflansche (18) durch einen Abstand (L) getrennt sind, der geringfügig größer ist als die Weite (1) der Rolle (7) derart, daß zwischen der Rolle (7) und einerseits den Rändern des halbzylindrischen Hohlraums (17) und andererseits den Innenwänden der Flansche (18) lediglich ein geringes Arbeitsspiel verbleibt,dadurch gekennzeichnet, daß
eine dauerhafte Zufuhr (19) für unter Druck stehendes Öl, die mit einer Ölzufuhrleitung kommuniziert, auf die halbzylindrische Innenwandung (17) des Hohlraums (16) benachbart zur äußersten Mantellinie (20) der halbzylindrischen Wandung (17) mündet, die bezogen auf die Drehrichtung der Rolle (7) stromaufwärts angeordnet ist, und
das geringe Arbeitsspiel im Betrieb derart ist, daß das von der Zufuhr (19) herrührende Öl einen hydrodynamischen Ölfilm zwischen der Rolle (7) und den Wendungen des Hohlraums (16) aufrechterhält, der die Schmierung und die Aufhängung der Rolle (7) in dem Hohlraum (16) sicherstellt, und daß die seitlichen Ölverluste auf ein Minimum reduziert sind. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Flansche (18) einstückig mit dem führenden Teil ausgebildet sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Mündung der Zufuhr (19) für das unter Druck stehende Öl auf die halbzylindrische Wandung (17) durch eine Quernut (21) gebildet ist, die entlang der äußersten Mantellinie (20) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß einseitig wirkende Mittel, die vorteilhafterweise durch ein Kugelsperrventil (26) gebildet sind, zwischen der Leitung für das unter Druck stehende Öl so nahe wie möglich an der Mündung auf die halbzylindrische Wandung (17) angeordnet sind.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die halbzylindrische Wandung (17) mit einer Achse (X-X) durch zwei Wandungen (27) verlängert ist, die parallel zueinander und zu der Achse (X-X) sowie tangential jeweils zu den Enden dieser halbzylindrischen Wandung (17) verlaufen.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die beiden Enden der halbzylindriachen Wandung (17) oder die beiden parallelen Wandungen (27) jeweils durch Leisten (28) verlängert sind, deren Enden durch einen Abstand getrennt sind, der geringfügig kleiner ist als der Durchmesser der Rolle (7).
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Relativbewegungsoberflächen oder zumindest die halbzylindrische Wandung (17) mit einer Antireibungsbeschichtung beschichtet sind, wie beispielsweise mit einem kupferartigen elektrolytischen Überzug.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zwischen der Rolle (7) und dem führenden Teil eine dünne metallische halbzylindrische Schale (29) aus einem Antireibungsmaterial angeordnet ist, die auf der halbzylindrischen Wandung (17) des Hohlraums (16) aufliegt, wobei ein Öldurchgang (30) quer über die Schale (29) vorgesehen ist.
- Vorrichtung nach Anspruch 3 oder 8, dadurch gekennzeichnet, daß die Quernut (21) in der Schale (29) angeordnet ist, wobei der Öldurchlaß (30) in diese Nut (21) mündet.
- Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Rolle (7) hohl und vollständig von einem axialen Loch (23) mit einem Durchmesser durchsetzt ist, der ausreichend gering ist, um jegliche dauerhafte Verformung der Rolle (7) zu verhindern, jedoch ausreichend groß, um die elastische Verformung der Rolle (7) im Kontakt mit der Kurvenscheibe (9) zu erlauben.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß der Innendurchmesser (Di) der hohlen Rolle (7) in der Größenordnung von 70% des Außendurchmessers (De) dieser Rolle (7) liegt.
- Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß ein kreiszylindrisches Zwischenrohr (33) mit einem Außendurchmesser, der kleiner ist als der Innendurchmesser (Di) des hohlen Rohre (7) in der Achse (X-X) der halbzylindrischen Wandung (17) gemeinsam mit den beiden Seitenflanschen (18) angebracht ist.
- Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Belastungsübertragungseinrichtung durch einen Stößel (34) gebildet ist, der durch dieselbe, zumindest ungefähr geradlinig verlaufende hin- und hergehende Bewegung angetrieben wird wie das mechanische Organ (11).
- Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Belastungsübertragungseinrichtung durch einen Ventilkipphebel (2) gebildet ist, der um eine Achse (3) parallel zur geometrischen Achse (X-X) der Rolle (7) schwingt.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß die Zufuhr (19) für das unter Druck stehende Öl im wesentlichen durch einen Kanal (22) gebildet ist, der in dem Körper des Ventilkipphebels (2) ausgebildet ist und mit der Ölzufuhrleitung unter Zwischenschaltung einer Umfangsnut (23) der Achse (3), eines in der Achse (3) ausgebildeten radialen Durchgangs (24) und eines Kanals (25) kommuniziert, der in die Achse (3) längs verlaufend eingestochen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9007161A FR2663091B1 (fr) | 1990-06-08 | 1990-06-08 | Dispositif de commande par arbre a came et moyens transmetteurs d'efforts a galet. |
FR9007161 | 1990-06-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0460988A1 EP0460988A1 (de) | 1991-12-11 |
EP0460988B1 true EP0460988B1 (de) | 1995-03-01 |
Family
ID=9397422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91401298A Expired - Lifetime EP0460988B1 (de) | 1990-06-08 | 1991-05-21 | Steuervorrichtung mit Nockenwelle und Kraftübertragungsmittel mit Rolle |
Country Status (6)
Country | Link |
---|---|
US (1) | US5186130A (de) |
EP (1) | EP0460988B1 (de) |
JP (1) | JPH05106410A (de) |
DE (1) | DE69107687T2 (de) |
ES (1) | ES2069235T3 (de) |
FR (1) | FR2663091B1 (de) |
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US5239951A (en) * | 1992-11-12 | 1993-08-31 | Ford Motor Company | Valve lifter |
DE4241633A1 (de) * | 1992-12-10 | 1994-06-16 | Schaeffler Waelzlager Kg | Schlepp- oder Kipphebel für einen Ventiltrieb einer Brennkraftmaschine |
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DE19524332A1 (de) * | 1995-07-04 | 1997-01-09 | Schaeffler Waelzlager Kg | Nockenfolger für einen Ventiltrieb einer Brennkraftmaschine |
US5566652A (en) * | 1995-10-06 | 1996-10-22 | Eaton Corporation | Light weight cam follower |
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CN101956625B (zh) * | 2010-10-31 | 2013-03-20 | 无锡开普动力有限公司 | 一种气缸盖的润滑结构 |
DE102012219382A1 (de) * | 2012-10-24 | 2014-04-24 | Schaeffler Technologies Gmbh & Co. Kg | Hebelartiger Nockenfolger |
DE102013215455A1 (de) * | 2013-08-06 | 2015-02-12 | Schaeffler Technologies Gmbh & Co. Kg | Nockenfolger |
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CN109899162B (zh) * | 2019-03-19 | 2022-04-26 | 潍柴动力股份有限公司 | 一种排气制动系统及发动机 |
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FR549594A (fr) * | 1922-03-31 | 1923-02-14 | Système de graissage intermittent des leviers poussoirs de soupapes | |
US2508557A (en) * | 1946-11-15 | 1950-05-23 | American Bosch Corp | Eccentric follower mechanism |
GB659654A (en) * | 1949-06-03 | 1951-10-24 | Continental Motors Corp | Improvements in valve rockers for internal combustion engines |
AT232324B (de) * | 1961-05-27 | 1964-03-10 | Fichtel & Sachs Ag | Tellerfeder, insbesondere für Kupplungen |
US3314303A (en) * | 1965-06-28 | 1967-04-18 | Int Harvester Co | Nonrotatable camfollower |
GB1109378A (en) * | 1966-12-20 | 1968-04-10 | Aubrey Boyd Melling | Valve tappet |
US3822683A (en) * | 1972-12-11 | 1974-07-09 | Caterpillar Tractor Co | Roller bearing retaining clip |
DE2712450C2 (de) * | 1977-03-22 | 1984-08-23 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Pumpenkolbenantrieb für eine Kraftstoffeinspritzpumpe für Brennkraftmaschinen |
DE2840160C3 (de) * | 1978-09-15 | 1981-03-12 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Nockentrieb mit einem Stößel |
DE2920075A1 (de) * | 1979-05-18 | 1980-11-20 | Kloeckner Humboldt Deutz Ag | Ventilgesteuerte brennkraftmaschine |
US4335685A (en) * | 1979-10-19 | 1982-06-22 | Caterpillar Tractor Co. | Lifter assembly |
US4708102A (en) * | 1986-09-08 | 1987-11-24 | Navistar International Transportation Corp. | Roller cam follower with positive lubrication |
JP2710360B2 (ja) * | 1988-10-06 | 1998-02-10 | 大日本印刷株式会社 | 合成樹脂製容器の検査装置 |
JP2793203B2 (ja) * | 1988-10-06 | 1998-09-03 | 大日本印刷株式会社 | 合成樹脂製容器の肉厚検査装置 |
US4909197A (en) * | 1989-08-16 | 1990-03-20 | Cummins Engine Company, Inc. | Cam follower assembly with pinless roller |
US5010856A (en) * | 1990-10-15 | 1991-04-30 | Ford Motor Company | Engine finger follower type rocker arm assembly |
US5127374A (en) * | 1991-11-21 | 1992-07-07 | Morel Jr Edward J | Valve lifter |
-
1990
- 1990-06-08 FR FR9007161A patent/FR2663091B1/fr not_active Expired - Fee Related
-
1991
- 1991-05-21 DE DE69107687T patent/DE69107687T2/de not_active Expired - Fee Related
- 1991-05-21 ES ES91401298T patent/ES2069235T3/es not_active Expired - Lifetime
- 1991-05-21 EP EP91401298A patent/EP0460988B1/de not_active Expired - Lifetime
- 1991-05-22 US US07/704,047 patent/US5186130A/en not_active Expired - Fee Related
- 1991-06-10 JP JP3165072A patent/JPH05106410A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2663091B1 (fr) | 1995-02-17 |
US5186130A (en) | 1993-02-16 |
JPH05106410A (ja) | 1993-04-27 |
FR2663091A1 (fr) | 1991-12-13 |
ES2069235T3 (es) | 1995-05-01 |
DE69107687D1 (de) | 1995-04-06 |
DE69107687T2 (de) | 1995-06-29 |
EP0460988A1 (de) | 1991-12-11 |
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