EP0301267B1 - Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine - Google Patents
Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine Download PDFInfo
- Publication number
- EP0301267B1 EP0301267B1 EP88110594A EP88110594A EP0301267B1 EP 0301267 B1 EP0301267 B1 EP 0301267B1 EP 88110594 A EP88110594 A EP 88110594A EP 88110594 A EP88110594 A EP 88110594A EP 0301267 B1 EP0301267 B1 EP 0301267B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- socket
- ball
- valve stem
- joint according
- socket joint
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000000717 retained effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F01L1/20—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
- F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- 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
- F01L2001/187—Clips, e.g. for retaining rocker arm on pivot
Definitions
- the invention relates to a between a rocker arm and a valve stem of an internal combustion engine ball joint, consisting of a cooperating with the rocker arm pin with a spherical end face, which cooperates with a spherical cap of a joint shell, which on its side opposite the spherical cap has a flat surface with which it opposes the valve stem rests, with the pin or a component connected to it starting from a holding element which engages behind the outer surface of the joint shell in such a way that it is held captively on the pin.
- the invention has for its object to avoid with a simple structural measure unwanted play between the cooperating with the rocker arm pin with a spherical end face on the one hand and the spherical cap of a joint shell on the other hand and at the same time to achieve that on the flat surface of the joint shell, which cooperates with the valve stem , no unwanted wear occurs.
- the holding element is designed as a spring element which rests under elastic prestress on the joint shell and thus holds the spherical end face of the pin in play-free contact in the spherical cap, the spring element being shaped and / or at such a point the joint cup rests that it is pivoted by such an angular amount with respect to the longitudinal axis of the pin that its flat surface runs parallel to the end face of the valve stem.
- FIGS. 4, 6 and 8 plan views of the embodiments according to FIGS. 3, 5 and 7.
- a known hydraulic lash adjuster 2 is arranged in a rocker arm 1 and has a pin 4 with a spherical end face 5 at its end facing the valve stem 3.
- This spherical end face 5 engages in the spherical cap 6 of the joint shell 7, which has a flat face 8 at its opposite end, with which it is in contact with the end face of the valve stem 3.
- the jacket surface 9 of the joint shell 7 is spherical.
- a leaf spring 10 is provided, which sits on the one hand with a cylindrical collar 11 on the end of the piston of the hydraulic play compensation element 2 and is fastened there by rolling into a circumferential groove, while on the other hand has a bow-like leg 12, which has a circular bore, with the edge of which it rests on the spherical lateral surface 9 and thereby ensures play-free contact between the spherical cap 6 and the spherical end surface 5.
- the edge of the circular bore is slightly shaped in the form of a spherical cap to form a contact surface, the surface of which is adapted to the lateral surface 9 of the joint shell 7.
- FIG. 2 shows an embodiment of the type that can be used in motors with manual play adjustment.
- the rocker arm 13 has a bore 14 into which an extension 15 of the Pin 4 is inserted.
- the pin 4 is here, as in the example described above, in contact with the joint shell 7, which in this case, however, has no spherical outer surface. Rather, it has at its end adjacent to the spherical cap of the pin 4 a radial flange 16, against whose radial surface 17 facing away from the pin 4 the first leg 18 of the leaf spring 19 bears.
- the second leg 20 of the leaf spring 19 is embedded on the one hand between a flat surface of the rocker arm 13 and on the other hand a radial surface 21 of a radial flange 22 which is arranged on the pin 4 at a distance from its spherical end face.
- Figure 2 shows that the leg 18 of the leaf spring 19 in this embodiment acts so eccentrically on the radial surface 17 of the radial flange 16 that the joint shell 7 is pivoted by such an angular amount relative to the longitudinal axis of the pin 4 that its flat surface 8 parallel runs to the end face of the valve stem 3. This ensures that when the joint shell 7 is placed on the valve stem 3, no additional wear-promoting tilting movement of the joint shell is required.
- Figures 3 and 4 corresponds essentially to the embodiment of Figure 2.
- Figures 3 and 4 show that the second leg 20 of the leaf spring 19 surrounds the extension 15 of the pin 4 fork-like and that the ends 23 of the fork arms so are angled so that they engage behind the radial flange 22 and thus prevent the leaf spring from slipping.
- FIGS. 5 and 6 largely corresponds to the overall structure. Design according to Figure 1, while the attachment of the leaf spring largely corresponds to Figures 3 and 4.
- FIGS. 7 and 8 show constructions in which the spring element is formed from round wire. Otherwise, this construction also corresponds in its basic structure to the previously described exemplary embodiments.
- FIGS. 9 and 10 show a further variant, which differs from the previous one in that the flat surface 8 of the joint shell 7, with which it rests against the valve stem 3, has a larger diameter than the valve stem 3
- Both legs 18 of the leaf spring 19 bifurcated at their ends abut on both sides of the valve stem 3 against the region of the flat surface 8 which projects beyond them and thus hold the joint shell 7 in contact with the spherical end surface of the pin 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Die Erfindung betrifft ein zwischen einen Kipphebel und einen Ventilschaft eines Verbrennungsmotors eingeschaltetes Kugelgelenk, bestehend aus einem mit dem Kipphebel zusammenwirkenden Zapfen mit balliger Stirnfläche, die mit einer Kugelkalotte einer Gelenkschale zusammenwirkt, weiche an ihrer der Kugelkalotte gegenüberliegenden Seite eine Planfläche aufweist, mit dem sie gegen den Ventilschaft anliegt, wobei von dem Zapfen oder einem mit diesem verbundenen Bauteil ein Halteelement ausgeht, das die Mantelfläche der Gelenkschale derart hintergreift, daß diese verliersicher am Zapfen gehalten ist.The invention relates to a between a rocker arm and a valve stem of an internal combustion engine ball joint, consisting of a cooperating with the rocker arm pin with a spherical end face, which cooperates with a spherical cap of a joint shell, which on its side opposite the spherical cap has a flat surface with which it opposes the valve stem rests, with the pin or a component connected to it starting from a holding element which engages behind the outer surface of the joint shell in such a way that it is held captively on the pin.
Es ist bereits eine Ausführung vorgeschlagen worden, bei welcher die Gelenkschale derart von einem Halteelement hintergriffen wurde, daß sie verliersicher am Zapfen gehalten war. Die Ausbildung war dabei so getroffen, daß zwischen der balligen Stirnfläche des Zapfens einerseits und der Kugelkalotte der Gelenkschale andererseits Spiel auftreten konnte. Dies führte dann an dieser Kontaktstelle zu zusätzlichem Verschleiß, der vermieden werden sollte (EP-A-02 23 898).An embodiment has already been proposed in which the joint shell was gripped behind by a holding element in such a way that it was held captively on the pin. The training was such that play could occur between the spherical end face of the pin on the one hand and the spherical cap of the joint shell on the other. This then led to additional wear at this contact point, which should be avoided (EP-
Es ist auch bereits bekanntgeworden, bei einer als Kugelgelenk ausgebildeten Schlepphebelabstützung in einem Ventiltrieb das den Zapfen tragende Schlepphebelende und die am Zylinderkopf befestigte Kugelkalotte durch eine Feder zusammenzuhalten, welche gleichzeitig den Schlepphebel in Richtung einer Ventilbetätigung vorspannt. Diese Ausführung ist mit dem Anmeldungsgegenstand deshalb nicht vergleichbar, weil sie an einer anderen Stelle des Ventiltriebes angeordnet ist und weil insbesondere das die Kalotte tragende Teil nicht mit dem Ventilschaft zusammenwirkt (GB-A-21 53 431).It has also become known, in the case of a rocker arm support designed as a ball joint, in a valve train the rocker arm end which carries the pin and the spherical cap fixed to the cylinder head to hold together by a spring which simultaneously biases the rocker arm in the direction of valve actuation. This design is not comparable to the subject of the application because it is arranged at a different location on the valve train and, in particular, because the part that carries the calotte does not interact with the valve stem (GB-A-21 53 431).
Der Erfindung liegt die Aufgabe zugrunde, mit einer einfachen baulichen Maßnahme unerwünschtes Spiel zwischen dem mit dem Kipphebel zusammenwirkenden Zapfen mit balliger Stirnseite einerseits und der Kugelkalotte einer Gelenkschale andererseits zu vermeiden und gleichzeitig zu erreichen, daß an der Planfläche der Gelenkschale, die mit dem Ventilschaft zusammenwirkt, kein unerwünschter Verschleiß auftritt.The invention has for its object to avoid with a simple structural measure unwanted play between the cooperating with the rocker arm pin with a spherical end face on the one hand and the spherical cap of a joint shell on the other hand and at the same time to achieve that on the flat surface of the joint shell, which cooperates with the valve stem , no unwanted wear occurs.
Diese Aufgabe löst die Erfindung dadurch daß das Halteelement als Federelement ausgebildet ist, das unter elastischer Vorspannung an der Gelenkschale anliegt und so die ballige Stirnfläche des Zapfens in spielfreier Anlage in der Kugelkalotte hält, wobei das Federelement so geformt ist und/oder an einer solchen Stelle der Gelenkschale anliegt, daß diese um einen solchen Winkelbetrag gegenüber der Längsachse des Zapfens geschwenkt ist, daß ihre Planfläche parallel zur Stirnfläche des Ventilschaftes verläuft.This object is achieved by the fact that the holding element is designed as a spring element which rests under elastic prestress on the joint shell and thus holds the spherical end face of the pin in play-free contact in the spherical cap, the spring element being shaped and / or at such a point the joint cup rests that it is pivoted by such an angular amount with respect to the longitudinal axis of the pin that its flat surface runs parallel to the end face of the valve stem.
Zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen wiedergegeben.Appropriate developments of the invention are given in the subclaims.
Die Zeichnungen zeigen in den Figuren 1, 2, 3, 5, 7, 9 und 10 Längsschnitte durch verschiedene Ausführungsformen der Erfindung und in den Figuren 4, 6 und 8 Draufsichten auf die Ausführungen nach den Figuren 3, 5 und 7.1, 2, 3, 5, 7, 9 and 10, the drawings show longitudinal sections through various embodiments of the invention and in FIGS. 4, 6 and 8 plan views of the embodiments according to FIGS. 3, 5 and 7.
Bei der in Figur 1 dargestellten Ausführung ist in einem Kipphebel 1 ein bekanntes hydraulisches Spielausgleichselement 2 angeordnet, welches an seinem dem Ventilschaft 3 zugekehrten Ende einen Zapfen 4 mit balliger Stirnfläche 5 aufweist. Diese ballige Stirnfläche 5 greift ein in die Kugelkalotte 6 der Gelenkschale 7, die an ihrem entgegengesetzten Ende eine Planfläche 8 aufweist, mit welcher sie mit der Stirnfläche des Ventilschaftes 3 in Kontakt steht.In the embodiment shown in FIG. 1, a known
Die Mantelfäche 9 der Gelenkschale 7 ist ballig ausgebildet. Zur spielfreien Halterung der Gelenkschale 7 an der balligen Stirnfläche 5 des Zapfens 4 ist eine Blattfeder 10 vorgesehen, die einerseits mit einem zylindrischen Bund 11 auf dem Ende des Kolbens des hydraulischen Spielausgleichselementes 2 sitzt und dort durch Einrollen in eine Umfangsnut befestigt ist, während sie andererseits einen bügelartigen Schenkel 12 aufweist, der eine Kreisbohrung besitzt, mit deren Rand er an der balligen Mantelfläche 9 anliegt und dadurch spielfreien Kontakt zwischen der Kugelkalotte 6 und der balligen Stirnfläche 5 gewährleistet. Der Rand der Kreisbohrung ist dabei zur Bildung einer Anlagefläche geringfügig in Form einer Kugelkalotte ausgeformt, deren Oberfläche der Mantelfläche 9 der Gelenkschale 7 angepaßt ist.The
In Figur 2 ist eine Ausführung dargestellt, wie sie bei Motoren mit manueller Spieleinstellung angewendet werden kann. Dabei weist der Kipphebel 13 eine Bohrung 14 auf, in welche eine Verlängerung 15 des Zapfens 4 eingesetzt ist. Der Zapfen 4 steht hier wie auch beim vorher beschriebenen Beispiel in Kontakt mit der Gelenkschale 7, die in diesem Falle jedoch keine ballige Mantelfläche besitzt. Sie weist vielmehr an ihren der Kugelkalotte des Zapfens 4 benachbarten Ende einen Radialflansch 16 auf, gegen dessen dem Zapfen 4 abgekehrte Radialfläche 17 der erste Schenkel 18 der Blattfeder 19 anliegt. Der zweite Schenkel 20 der Blattfeder 19 ist eingebettet einerseits zwischen eine Planfläche des Kipphebels 13 und andererseits eine Radialfläche 21 eines Radialflansches 22, welcher an dem Zapfen 4 im Abstand von dessen balliger Stirnfläche angeordnet ist.FIG. 2 shows an embodiment of the type that can be used in motors with manual play adjustment. The
Die Figur 2 läßt erkennen, daß der Schenkel 18 der Blattfeder 19 bei dieser Ausführung derart außermittig an der Radialfläche 17 des Radialflansches 16 angreift, daß dadurch die Gelenkschale 7 um einen solchen Winkelbetrag gegenüber der Längsachse des Zapfens 4 geschwenkt wird, daß ihre Planfläche 8 parallel zur Stirnfläche des Ventilschaftes 3 verläuft. Dadurch wird sichergestellt, daß beim Aufsetzen der Gelenkschale 7 auf den Ventilschaft 3 keine zusätzliche verschleißfördernde Kippbewegung der Gelenkschale erforderlich ist.Figure 2 shows that the
Die in den Figuren 3 und 4 dargestellte Variante entspricht im wesentlichen der Ausführung nach Figur 2. Die Figuren 3 und 4 lassen erkennen, daß der zweite Schenkel 20 der Blattfeder 19 die Verlängerung 15 des Zapfens 4 gabelartig umgreift und daß die Enden 23 der Gabelarme so abgewinkelt sind, daß sie den Radialflansch 22 hintergreifen und damit ein Abrutschen der Blattfeder vermeiden.The variant shown in Figures 3 and 4 corresponds essentially to the embodiment of Figure 2. Figures 3 and 4 show that the
Die in den Figuren 5 und 6 dargestellte Variante entspricht in ihrem Gesamtaufbau weitgehend der. Ausführung nach Figur 1, während die Befestigung der Blattfeder weitgehend den Figuren 3 und 4 entspricht.The variant shown in FIGS. 5 and 6 largely corresponds to the overall structure. Design according to Figure 1, while the attachment of the leaf spring largely corresponds to Figures 3 and 4.
Während bei den bisher beschriebenen Ausführungsbeispielen das Federelement jeweils als Blattfeder ausgebildet war, zeigen die Figuren 7 und 8 Konstruktionen, bei welchen das Federelement aus Runddraht geformt ist. Ansonsten entspricht auch diese Konstruktion in ihrem Grundaufbau den vorher beschriebenen Ausführungsbeispielen.While in the previously described exemplary embodiments the spring element was designed as a leaf spring, FIGS. 7 and 8 show constructions in which the spring element is formed from round wire. Otherwise, this construction also corresponds in its basic structure to the previously described exemplary embodiments.
In den Figuren 9 und 10 ist eine weitere Variante dargestellt, die sich dadurch von den vorhergehenden unterscheidet, daß bei ihr die Planfläche 8 der Gelenkschale 7, mit der diese gegen den Ventilschaft 3 anliegt, einen größeren Durchmesser aufweist, als der Ventilschaft 3. Die beiden Schenkel 18 der an ihrem Ende gegabelten Blattfeder 19 liegen zu beiden Seiten des Ventilschaftes 3 gegen den diesen überragenden Bereich der Planfläche 8 an und halten so die Gelenkschale 7 in Kontakt mit der balligen Stirnfläche des Zapfens 4.FIGS. 9 and 10 show a further variant, which differs from the previous one in that the
Claims (7)
- Ball-and-socket joint fitted between a rocker arm and a valve stem of an internal combustion engine and comprising a bearing peg which cooperates with the rocker arm and has a convex front face cooperating with a concave spherical surface of a socket which, at its end opposite the concave spherical surface, has a flat surface by which it bears against the valve stem, a retaining element extending from the bearing peg or from a component connected to it engaging around the socket in such a way that this is retained secure against loss on the bearing peg, characterized in that the retaining element is formed as a spring element (10,19) which bears against the socket (7) under elastic pre-tension and thus retains the convex front face (5) of the journal (4) in contact without play with the concave spherical surface (6), the spring element (19) being shaped in such a way and/or bearing against the socket (7) at such a point that the socket (7) is pivoted through such an angle with regard to the longitudinal axis of the bearing peg (4) that its flat surface (8) extends parallel to the end face of the valve stem (3).
- Ball-and-socket joint according to claim 1, characterized in that the outer peripheral surface (9) of the socket (7) is convex in shape with its end adjacent to the concave spherical surface (6) having a larger outer diameter than its end adjacent to the flat surface (8), and the spring element (10, 19) comprises a circular bore by whose edge it bears against the convex outer peripheral surface (9).
- Ball-and-socket joint according to claim 2, characterized in that the edge of the circular bore is shaped slightly in the form of a spherical cup for the purpose of forming a contact surface.
- Ball-and-socket joint according to claim 1, characterized in that, at its end adjacent to the concave spherical surface (6), the socket (7) comprises a radial flange (16) against whose radial surface (17) facing away from the bearing peg (4), the leaf spring (19) bears.
- Ball-and-socket joint according to claim 1, characterized in that the flat surface (8) of the socket (7) by which this bears against the valve stem (3), has a larger diameter than the valve stem (3) and the forked arm (18) of the leaf spring (19) bears against the region of the flat surface (8) projecting radially beyond the valve stem (3).
- Ball-and-socket joint according to one of the preceding claims, characterized in that the spring element (10, 19) is formed as an essentially U-shaped bow whose first arm (18) presses against the socket (7) whereas its second arm (20) is fixed to the bearing peg (4).
- Ball-and-socket joint according to claim 6, characterized in that, at a distance from the convex front face (5), the bearing peg (4) comprises a radial flange (22) against whose radial surface (21) facing away from the convex front face (5), the second arm (20) of the bow bears.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873725245 DE3725245A1 (en) | 1987-07-30 | 1987-07-30 | BALL JOINT WHICH IS ON BETWEEN A ROCKER ARM AND A VALVE STOVE OF AN INTERNAL COMBUSTION ENGINE |
DE3725245 | 1987-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0301267A1 EP0301267A1 (en) | 1989-02-01 |
EP0301267B1 true EP0301267B1 (en) | 1991-12-11 |
Family
ID=6332701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88110594A Expired - Lifetime EP0301267B1 (en) | 1987-07-30 | 1988-07-02 | Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine |
Country Status (7)
Country | Link |
---|---|
US (1) | US4856468A (en) |
EP (1) | EP0301267B1 (en) |
JP (1) | JPH0686805B2 (en) |
AU (1) | AU598673B2 (en) |
BR (1) | BR8803765A (en) |
DE (2) | DE3725245A1 (en) |
ES (1) | ES2028194T3 (en) |
Families Citing this family (29)
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GB2237858A (en) * | 1989-11-11 | 1991-05-15 | Gen Motors Luxembourg Operatio | Valve-lash adjustment system. |
US5542315A (en) * | 1994-06-21 | 1996-08-06 | Cummins Engine Company, Inc. | Elephant's foot adjusting screw assembly for internal combustion engine |
DE9412789U1 (en) * | 1994-08-09 | 1994-10-06 | INA Wälzlager Schaeffler KG, 91074 Herzogenaurach | Cam follower of a valve train of an internal combustion engine |
DE4444481A1 (en) * | 1994-12-14 | 1996-06-20 | Schaeffler Waelzlager Kg | Tappet with a hydraulic valve lash adjuster |
DE19505406A1 (en) * | 1995-02-17 | 1996-08-22 | Schaeffler Waelzlager Kg | Hydraulic tappet adjustment e.g. for IC engine |
US5632237A (en) * | 1995-08-07 | 1997-05-27 | Hy-Lift Division Of Spx Corporation | Hydraulic lash compensating element assembly |
DE19537641A1 (en) * | 1995-10-10 | 1997-04-17 | Bayerische Motoren Werke Ag | Point bearing tappet for IC-engine valve |
US5680838A (en) * | 1996-10-21 | 1997-10-28 | General Motors Corporation | Swivel foot lash adjuster |
US5706771A (en) * | 1996-12-23 | 1998-01-13 | General Motors Corporation | Hydraulic element assembly |
US5709181A (en) * | 1997-02-06 | 1998-01-20 | General Motors Corporation | Rocker arm assembly |
DE19706439B4 (en) * | 1997-02-19 | 2007-07-05 | Schaeffler Kg | Ball joint, which is arranged between an actuating lever and a valve stem of a gas exchange valve of an internal combustion engine |
DE19750806B4 (en) * | 1997-11-17 | 2015-03-26 | Schaeffler Technologies AG & Co. KG | Hydraulic lash adjuster |
US6138624A (en) * | 1999-03-01 | 2000-10-31 | Cummins Engine Company, Inc. | Tappet socket assembly for rocker lever assembly and method of assembling the same |
US6148780A (en) * | 1999-03-31 | 2000-11-21 | Delphi Technologies, Inc. | Hydraulic element assembly |
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 |
US6199526B1 (en) * | 1999-06-28 | 2001-03-13 | Michael G. Knickerbocker | Retainer for rocker arm coupling in an internal combustion engine |
US6397805B1 (en) | 1999-06-28 | 2002-06-04 | Michael G. Knickerbocker | Retainer for rocker arm coupling in an internal combustion engine |
WO2002074439A1 (en) * | 2001-03-16 | 2002-09-26 | Memorec Biotec Gmbh | Analysing device for analysing chemical and/or biological samples |
US6557507B2 (en) | 2001-03-30 | 2003-05-06 | Caterpillar Inc. | Rocker arm assembly |
US6830022B2 (en) * | 2001-10-30 | 2004-12-14 | International Engine Intellectual Property Company, Llc | Valve actuation linkage mechanism |
US20050183684A1 (en) * | 2004-02-25 | 2005-08-25 | James Strepek | Valve operating system in an internal combustion engine |
WO2008002746A2 (en) * | 2006-06-26 | 2008-01-03 | Timken Us Corporation | Coupling device |
US7789052B2 (en) | 2007-06-29 | 2010-09-07 | Caterpillar Inc. | Variable valve actuator having self-centering pivotal piston |
KR20100100760A (en) * | 2007-09-18 | 2010-09-15 | 코요 베어링즈 유에스에이, 엘엘씨 | Coupling device |
US7878166B2 (en) * | 2007-11-29 | 2011-02-01 | Perkins Engines Company Limited | Device and method for retaining a valve bridge |
US8006661B2 (en) * | 2009-08-04 | 2011-08-30 | International Engine Intellectual Property Company, Llc | Bridge and pivot foot arrangement for operating engine cylinder valves |
US8516803B2 (en) | 2010-05-17 | 2013-08-27 | GM Global Technology Operations LLC | Mechanical vacuum pump integrated with coupled secondary air injection valve |
DE102016207175A1 (en) | 2016-04-27 | 2017-11-02 | Schaeffler Technologies AG & Co. KG | Swivel bearing of a hydraulic lash adjuster |
US10400817B2 (en) | 2016-11-22 | 2019-09-03 | Woodward, Inc. | Radial bearing device |
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US2030345A (en) * | 1935-01-17 | 1936-02-11 | Victor F Zahodiakin | Valve actuating mechanism |
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DE2654528C2 (en) * | 1976-12-02 | 1982-04-29 | Bayerische Motoren Werke AG, 8000 München | Valve operating lever |
JPS60108512A (en) * | 1983-11-17 | 1985-06-14 | Toyota Motor Corp | Support mechanism for valve drive system in internal-combustion engine |
JPS60147511A (en) * | 1984-01-13 | 1985-08-03 | Toyota Motor Corp | Spring for end pivot type locker arm of internal-combustion engine moving valve system |
DE3541198A1 (en) * | 1985-11-21 | 1987-05-27 | Motomak | HYDRAULIC GAME COMPENSATION DEVICE |
DE3614258A1 (en) * | 1986-04-26 | 1987-10-29 | Motomak | HYDRAULIC VALVE COMPENSATION COMPENSATION DEVICE FOR COMBUSTION ENGINES |
US4762099A (en) * | 1986-07-08 | 1988-08-09 | Honda Giken Koygo Kabushiki Kaisha | Valve actuating device of four-cycle internal combustion engine |
-
1987
- 1987-07-30 DE DE19873725245 patent/DE3725245A1/en not_active Withdrawn
-
1988
- 1988-05-24 US US07/198,062 patent/US4856468A/en not_active Expired - Lifetime
- 1988-05-25 AU AU16620/88A patent/AU598673B2/en not_active Ceased
- 1988-07-02 DE DE8888110594T patent/DE3866814D1/en not_active Expired - Lifetime
- 1988-07-02 EP EP88110594A patent/EP0301267B1/en not_active Expired - Lifetime
- 1988-07-02 ES ES198888110594T patent/ES2028194T3/en not_active Expired - Lifetime
- 1988-07-29 BR BR8803765A patent/BR8803765A/en not_active IP Right Cessation
- 1988-07-29 JP JP63188567A patent/JPH0686805B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU1662088A (en) | 1989-02-02 |
AU598673B2 (en) | 1990-06-28 |
DE3866814D1 (en) | 1992-01-23 |
US4856468A (en) | 1989-08-15 |
JPS6453007A (en) | 1989-03-01 |
BR8803765A (en) | 1989-02-21 |
ES2028194T3 (en) | 1992-07-01 |
JPH0686805B2 (en) | 1994-11-02 |
DE3725245A1 (en) | 1989-02-09 |
EP0301267A1 (en) | 1989-02-01 |
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