DE4228854A1 - Rolling tappet for driving injection pumps in diesel engines - has oil passing from oil bore through radial throttle bore into inner chamber of tappet body for effective lubrication. - Google Patents

Rolling tappet for driving injection pumps in diesel engines - has oil passing from oil bore through radial throttle bore into inner chamber of tappet body for effective lubrication.

Info

Publication number
DE4228854A1
DE4228854A1 DE4228854A DE4228854A DE4228854A1 DE 4228854 A1 DE4228854 A1 DE 4228854A1 DE 4228854 A DE4228854 A DE 4228854A DE 4228854 A DE4228854 A DE 4228854A DE 4228854 A1 DE4228854 A1 DE 4228854A1
Authority
DE
Germany
Prior art keywords
roller
tappet
bore
oil
tappet body
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.)
Granted
Application number
DE4228854A
Other languages
German (de)
Other versions
DE4228854C2 (en
Inventor
Heinrich Dipl Ing Hetzel
Peter Dipl Ing Chatelain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DE4228854A priority Critical patent/DE4228854C2/en
Publication of DE4228854A1 publication Critical patent/DE4228854A1/en
Application granted granted Critical
Publication of DE4228854C2 publication Critical patent/DE4228854C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • 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
    • F01M9/104—Lubrication of valve gear or auxiliaries of tappets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
    • F16H53/06—Cam-followers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The tappet body (1) is displaceable in a housing (5) and has pref. over its entire length an inner chamber (6) into which the radial bore (7) opens which links the roller (3) with the lubricating oil bore (8) in the housing. The inner chamber has either side of the roller circumference drainage openings (12) for the lubricant. Where lateral play is provided between the roller (3) and tappet body this play increases, starting from the centre of the roller towards the end of the tappet on the roller side through a conical expansion in the inner chamber (6). The tappet body pref. has at its end remote from the roller a closing spring plate (10). USE/ADVANTAGE - Low cost mfr. of rolling tappet driving injection pump in diesel engine, and providing sufficient lubrication and cooling for the roller.

Description

Die Erfindung betrifft einen Rollenstößel, vorzugsweise zum Antrieb der Einspritzpumpen einer Dieselbrennkraftmaschine, insbesondere nach dem Oberbegriff des Anspruchs 1.The invention relates to a roller tappet, preferably for driving the Injection pumps of a diesel engine, especially after the preamble of claim 1.

In der gattungsgemäßen DE-A-33 00 032 wird ein Rollenstößel beschrie­ ben, dessen Rolle von Drucköl aus der Schmierölversorgung einer Brennkraftmaschine ausreichend geschmiert und gekühlt wird. Dieser Rollenstößel ist aufgrund seiner komplizierten Schmierölführung relativ teuer.A roller tappet is described in the generic DE-A-33 00 032 ben, the role of pressure oil from the lubricating oil supply one Internal combustion engine is adequately lubricated and cooled. This Roller tappet is relative due to its complicated lubricating oil management expensive.

Der Erfindung liegt deshalb die Aufgabe zugrunde, einen Rollenstößel mit ausreichend geschmierter und gekühlter Laufrolle zu schaffen, der mit geringem Aufwand zu fertigen ist.The invention is therefore based on the object of a roller tappet with a sufficiently lubricated and cooled roller that can be produced with little effort.

Die Aufgabe wird gelöst durch den kennzeichnenden Teil des Anspruchs 1. Durch die erfindungsgemäße Ausbildung des Rollenstößels dient dessen Innenraum zur Schmierölführung. Deshalb ist als zusätzlicher Fertigungsaufwand zur Führung des Schmieröls lediglich eine radiale Bohrung im Stößelkörper erforderlich. Die erfindungsgemäßen Abfluß­ öffnungen für das Schmieröl beidseits des Umfanges der Laufrolle bewir­ ken eine intensive Kühlung und Schmierung der Laufrolle. The object is achieved by the characterizing part of the claim 1. By the inventive design of the roller tappet its interior for lubricating oil guidance. Therefore, as an additional Manufacturing effort to guide the lubricating oil is only a radial one Hole in the tappet body required. The drain according to the invention Make openings for the lubricating oil on both sides of the circumference of the roller intensive cooling and lubrication of the roller.  

Beim Rollenstößel, der Seitenspiel zwischen der Laufrolle und dem Stö­ ßelkörper aufweist, ist es vorteilhaft, daß das Seitenspiel, ausgehend von der Mitte der Laufrolle zum laufrollenseitigen Ende des Stößelkörpers hin durch konische Erweiterung des Innenraumes vergrößert wird. Dabei gelangt das Schmieröl über die Laufrolle auf den zugehörigen Nocken, von wo aus es in die konische Erweiterung geschleudert wird. Von dort gelangt es an die Stirnflächen der Laufrollen und in deren Laufspalt.In the roller tappet, the side play between the roller and the Stö ßelkörper has, it is advantageous that the side game, starting from the center of the roller to the end of the tappet body on the roller side is enlarged by conical expansion of the interior. Here the lubricating oil reaches the corresponding cam via the roller, from where it is thrown into the conical extension. From there it reaches the end faces of the rollers and in their running gap.

Durch eine vorteilhafte Ausbildung der Erfindung, bei der der Stößelkör­ per an seinem rollenfernen Ende einen ihn abschließenden Federteller aufweist, wird eine einfache Fertigung des Innenraumes des Stößels er­ möglicht. Der Federteller, der Teil der vormontierten Einspritzpumpe ist, wird bei deren Einbau ins Gehäuse in den Rollenstößel gesteckt und schließt diesen öldicht ab.By an advantageous embodiment of the invention, in which the tappet body a spring plate that closes it off at its end remote from the roller has a simple manufacture of the interior of the plunger he possible. The spring plate, which is part of the pre-assembled injection pump, is inserted into the roller tappet when they are installed in the housing and closes this oil-tight.

Durch eine vorteilhafte Weiterbildung der Erfindung, bei der die radiale Drosselbohrung in einer Längsnut am Umfang des Stößelkörpers ange­ ordnet ist, wobei die Längsnut eine bestimmte Länge und Lage aufweist, wird erreicht, daß die Dauer der Strömungsverbindung zwischen der Schmierölbohrung und dem Innenraum frei wählbar ist. So ist nach einer vorteilhaften Ausbildung der Erfindung die Längsnut nach Länge und Lage so angeordnet, daß deren Überdeckung mit der Ölbohrung während des gesamten Stößelhubes gewährleistet ist und damit eine an­ dauernde Schmierölversorgung des Innenraumes des Rollenstößels be­ steht. Ist die Überdeckung nur während eines Teils des Stößelhubes wirksam, so ist damit eine entsprechende Schmierölversorgung des In­ nenraumes gewährleistet.Through an advantageous development of the invention, in which the radial Throttle bore in a longitudinal groove on the circumference of the tappet body is arranged, the longitudinal groove having a certain length and position, is achieved that the duration of the flow connection between the Lubricating oil hole and the interior is freely selectable. So after an advantageous embodiment of the invention, the longitudinal groove by length and location arranged so that their overlap with the oil hole is guaranteed during the entire ram stroke and thus one permanent supply of lubricating oil to the interior of the roller tappet stands. Is the overlap only during part of the ram stroke effective, it is a corresponding supply of lubricating oil to the In guaranteed.

Eine vorteilhafte Weiterbildung der Erfindung, bei der die Laufrolle eine vorzugsweise schwimmende Zwischenbuchse aufweist, bietet ein hohes Maß an Freßsicherheit der Laufrolle.An advantageous development of the invention, in which the roller is a preferably has floating intermediate socket, offers a high Degree of seizure protection of the roller.

Weitere Merkmale der Erfindung ergeben sich aus der folgenden Be­ schreibung und der Zeichnung, in der ein Beispiel der Erfindung sche­ matisch dargestellt ist.Further features of the invention result from the following Be writing and the drawing, in which an example of the invention is shown mathematically.

Es zeigen: Show it:  

Fig. 1 Schnitt durch den Rollenstößel senkrecht zur Achse des Rol­ lenbolzens, Fig. 1 section through the roller tappet perpendicular to the axis of the Rol lenbolzens,

Fig. 2 Schnitt durch den Rollenstößel parallel zur Achse des Rol­ lenbolzens. Fig. 2 section through the roller tappet parallel to the axis of the roller lenbolzens.

Fig. 1 zeigt einen Rollenstößel mit einem Stößelkörper 1, der einen In­ nenraum 6 aufweist, dessen eines Ende durch einen Federteller 10 abge­ schlossen ist und an dessen anderem Ende ein Rollenbolzen 2 angeord­ net ist. Auf diesem ist eine Zwischenbuchse 4 in einer Laufrolle 3 gela­ gert. Zwischen Laufrolle 3 und Stößelkörper 1 befinden sich Abflußöff­ nungen 12. Am Umfang des Stößelkörpers 1 ist eine Längsnut 9 vorge­ sehen, innerhalb der eine radiale Drosselbohrung 7 im Stößelkörper 1 angeordnet ist. Im Bereich der Längsnut 9 ist im Gehäuse 5 eine Ölboh­ rung 8 angeordnet, die in Strömungsverbindung mit der Ölversorgung der Brennkraftmaschine steht. Unterhalb der Achse des Rollenbolzens 2 weist der Innenraum 6 eine konische Erweiterung 11 auf. Fig. 1 shows a roller tappet with a tappet body 1 having an inner space 6 , one end of which is closed by a spring plate 10 and at the other end a roller bolt 2 is net angeord. On this an intermediate bush 4 in a roller 3 gela gert. Between the roller 3 and the tappet body 1 there are drain openings 12 . On the circumference of the tappet body 1 , a longitudinal groove 9 is provided, within which a radial throttle bore 7 is arranged in the tappet body 1 . In the region of the longitudinal groove 9 , an Ölboh tion 8 is arranged in the housing 5 , which is in flow connection with the oil supply to the internal combustion engine. Below the axis of the roller bolt 2 , the interior 6 has a conical extension 11 .

Der Rollenstößel funktioniert folgendermaßen:The roller tappet works as follows:

Aus der Ölbohrung 8 tritt Öl in die Längsnut 9 und über die radiale Drosselbohrung 7 in den Innenraum 6 ein. Von dort strömt das Öl ent­ lang der Laufrolle 3 durch die Abflußöffnungen 12 über den Nocken einer Nockenwelle ins Kurbelgehäuse der Brennkraftmaschine. Dabei wird die Laufrolle 3 gekühlt und deren Lagerung durch das vom Nocken abgeschleuderte Öl geschmiert. Durch die konische Erweiterung 11 ist ein unbehinderter Zutritt des Schmieröls zur Zwischenbuchse 4 der Laufrolle 3 gegeben. Auf diese Weise werden die Laufrolle 3 und ihre La­ gerung ausreichend geschmiert und gekühlt, was bei hochbelasteten Kraftstoffeinspritzpumpen von großer Bedeutung für deren Lebensdauer ist. Dabei erlaubt die einfache Gestaltung des Rollenstößels, der nur eine Radialbohrung aufweist und keine Axialbohrung benötigt, eine einfache, kostengünstige Fertigung und zusätzlich ein geringes Baugewicht. Letzteres fördert die Drehzahlfestigkeit des Rollenstößels.Oil enters the longitudinal groove 9 from the oil bore 8 and into the interior 6 via the radial throttle bore 7 . From there, the oil flows ent long the roller 3 through the drain openings 12 via the cam of a camshaft into the crankcase of the internal combustion engine. The roller 3 is cooled and its storage is lubricated by the oil thrown off the cam. The conical widening 11 provides unrestricted access for the lubricating oil to the intermediate bush 4 of the roller 3 . In this way, the roller 3 and their storage are adequately lubricated and cooled, which is of great importance for their service life in highly loaded fuel injection pumps. The simple design of the roller tappet, which has only one radial bore and does not require an axial bore, allows simple, inexpensive production and, in addition, a low construction weight. The latter promotes the speed stability of the roller tappet.

Claims (6)

1. Rollenstößel, vorzugsweise zum Antrieb der Einspritzpumpen einer Dieselbrennkraftmaschine mit einem Stößelkörper (1), der in einem Gehäuse (5) verschiebbar geführt und an dessen einem Ende ein Rollen­ bolzen (2) angeordnet ist, auf dem eine Laufrolle (3) gelagert ist, die zu­ mindest zeitweise über eine radiale Bohrung (7) im Stößelkörper (1) in Strömungsverbindung mit einer Schmierölbohrung (8) im Gehäuse (5) steht, wobei der Rollenstößel von einem Nocken einer Nockenwelle ange­ trieben wird, die oberhalb eines Ölsumpfes vorzugsweise in einem Kur­ belgehäuse der Dieselbrennkraftmaschine gelagert ist, dadurch gekennzeichnet, daß der Stößelkörper (1) vorzugsweise auf sei­ ner gesamten Länge einen Innenraum (6) aufweist, in den die Bohrung (7) mündet und der beidseits des Umfangs der Laufrolle (3) Abflußöff­ nungen (12) für das Schmieröl aufweist.1. Roller tappet, preferably for driving the injection pumps of a diesel internal combustion engine with a tappet body ( 1 ) which is displaceably guided in a housing ( 5 ) and at one end a roller bolt ( 2 ) is arranged on which a roller ( 3 ) is mounted , which is at least at times via a radial bore ( 7 ) in the tappet body ( 1 ) in flow connection with a lubricating oil bore ( 8 ) in the housing ( 5 ), the roller tappet being driven by a cam of a camshaft, which is preferably above an oil sump a Kur belgehäuse the diesel engine is mounted, characterized in that the plunger body ( 1 ) preferably over its entire length has an inner space ( 6 ) into which the bore ( 7 ) opens and on both sides of the circumference of the roller ( 3 ) drain openings ( 12 ) for the lubricating oil. 2. Rollenstößel nach Anspruch 1, wobei zwischen Laufrolle (3) und Stößelkörper (1) ein Seitenspiel vorgesehen ist, dadurch gekennzeichnet, daß das Seitenspiel, ausgehend von der Mitte der Laufrolle (3) zum laufrollenseitigen Ende des Stößelkörpers (1) hin durch konische Erweiterung (11) des Innenraumes (6) vergrößert ist.2. Roller tappet according to claim 1, wherein between the roller ( 3 ) and the tappet body ( 1 ) a side game is provided, characterized in that the side game, starting from the center of the roller ( 3 ) to the roller-side end of the tappet body ( 1 ) by conical Extension ( 11 ) of the interior ( 6 ) is enlarged. 3. Rollenstößel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Stößelkörper (1) an seinem rollenfer­ nen Ende einen ihn abschließenden Federteller (10) aufweist. 3. Roller tappet according to claim 1 or 2, characterized in that the tappet body ( 1 ) at its end remote from the roller has a spring plate closing it ( 10 ). 4. Rollenstößel nach Anspruch 1, dadurch gekennzeichnet, daß die Drosselbohrung (7) in einer Längsnut (9) am Umfang des Stößelkörpers (1) angeordnet ist, wobei die Längsnut (9) eine bestimmte Länge und Lage aufweist.4. Roller tappet according to claim 1, characterized in that the throttle bore ( 7 ) is arranged in a longitudinal groove ( 9 ) on the circumference of the tappet body ( 1 ), the longitudinal groove ( 9 ) having a certain length and position. 5. Rollenstößel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Längsnut (9) eine solche Länge und Lage aufweist, daß deren Überdeckung mit der Ölbohrung (8) während des gesamten Stößelhubes gewährleistet ist.5. Roller tappet according to claim 1 or 2, characterized in that the longitudinal groove ( 9 ) has such a length and position that its overlap with the oil bore ( 8 ) is ensured during the entire tappet stroke. 6. Rollenstößel nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Laufrolle (3) eine vorzugsweise schwimmende Zwischenbuchse (4) aufweist.6. Roller tappet according to one of the preceding claims, characterized in that the roller ( 3 ) has a preferably floating intermediate bush ( 4 ).
DE4228854A 1992-08-29 1992-08-29 Roller plunger Expired - Fee Related DE4228854C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4228854A DE4228854C2 (en) 1992-08-29 1992-08-29 Roller plunger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4228854A DE4228854C2 (en) 1992-08-29 1992-08-29 Roller plunger

Publications (2)

Publication Number Publication Date
DE4228854A1 true DE4228854A1 (en) 1994-03-03
DE4228854C2 DE4228854C2 (en) 2000-01-20

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DE4228854A Expired - Fee Related DE4228854C2 (en) 1992-08-29 1992-08-29 Roller plunger

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013791A1 (en) * 2013-11-26 2015-05-29 Skf Ab FOLLOWING ROLL DEVICE OF A CAM
FR3013792A1 (en) * 2013-11-26 2015-05-29 Skf Ab FOLLOWING ROLL DEVICE OF A CAM
IT201800009454A1 (en) * 2018-10-15 2020-04-15 Bosch Gmbh Robert PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875105C (en) * 1943-10-24 1953-04-30 Daimler Benz Ag Pivotably arranged tappets, in particular valve tappets for reversible internal combustion engines
DE1099795B (en) * 1959-06-23 1961-02-16 Kloeckner Humboldt Deutz Ag Fuel injection pump for internal combustion engines
DE2006794A1 (en) * 1969-02-17 1970-09-03 Simms Group Research and Development Ltd., London Hub device
DE2215481A1 (en) * 1971-04-02 1972-10-05 Friedmann & Maier AG, Hallein, Salzburg (Österreich) Roller tappet
DE2231707A1 (en) * 1971-07-15 1973-02-01 Friedmann & Maier Ag ROLLING TAPE
DE1526700B2 (en) * 1966-11-25 1973-03-01 Klöckner-Humboldt-Deutz AG, 5000 Köln ROLLER TAPE FOR FUEL INJECTION PUMPS
DE2540061A1 (en) * 1974-10-23 1976-05-06 Sealed Power Corp ROLLING TAPE
DE2145823B2 (en) * 1971-09-14 1977-04-21 Mtu Friedrichshafen Gmbh Forked valve pusher with cam roller - has wall sections converging from fork to ball cup and integral with cylindrical slide face
US4173954A (en) * 1977-12-13 1979-11-13 Speckhart Frank H Limited rotation roller tappet
DE3300032A1 (en) * 1983-01-03 1984-07-05 Klöckner-Humboldt-Deutz AG, 5000 Köln Roller tappet for a valve drive of a reciprocating piston internal combustion engine
US4549509A (en) * 1984-09-20 1985-10-29 Burtchell Darrell A Tappet
US4708102A (en) * 1986-09-08 1987-11-24 Navistar International Transportation Corp. Roller cam follower with positive lubrication

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875105C (en) * 1943-10-24 1953-04-30 Daimler Benz Ag Pivotably arranged tappets, in particular valve tappets for reversible internal combustion engines
DE1099795B (en) * 1959-06-23 1961-02-16 Kloeckner Humboldt Deutz Ag Fuel injection pump for internal combustion engines
DE1526700B2 (en) * 1966-11-25 1973-03-01 Klöckner-Humboldt-Deutz AG, 5000 Köln ROLLER TAPE FOR FUEL INJECTION PUMPS
DE2006794A1 (en) * 1969-02-17 1970-09-03 Simms Group Research and Development Ltd., London Hub device
DE2215481A1 (en) * 1971-04-02 1972-10-05 Friedmann & Maier AG, Hallein, Salzburg (Österreich) Roller tappet
AT316220B (en) * 1971-07-15 1974-06-25 Friedmann & Maier Ag Roller tappets
DE2231707A1 (en) * 1971-07-15 1973-02-01 Friedmann & Maier Ag ROLLING TAPE
DE2145823B2 (en) * 1971-09-14 1977-04-21 Mtu Friedrichshafen Gmbh Forked valve pusher with cam roller - has wall sections converging from fork to ball cup and integral with cylindrical slide face
DE2540061A1 (en) * 1974-10-23 1976-05-06 Sealed Power Corp ROLLING TAPE
US4173954A (en) * 1977-12-13 1979-11-13 Speckhart Frank H Limited rotation roller tappet
DE3300032A1 (en) * 1983-01-03 1984-07-05 Klöckner-Humboldt-Deutz AG, 5000 Köln Roller tappet for a valve drive of a reciprocating piston internal combustion engine
US4549509A (en) * 1984-09-20 1985-10-29 Burtchell Darrell A Tappet
US4708102A (en) * 1986-09-08 1987-11-24 Navistar International Transportation Corp. Roller cam follower with positive lubrication

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013791A1 (en) * 2013-11-26 2015-05-29 Skf Ab FOLLOWING ROLL DEVICE OF A CAM
FR3013792A1 (en) * 2013-11-26 2015-05-29 Skf Ab FOLLOWING ROLL DEVICE OF A CAM
CN104675465A (en) * 2013-11-26 2015-06-03 Skf公司 Cam follower roller device
CN104747336A (en) * 2013-11-26 2015-07-01 Skf公司 Cam Follower Device
US9777820B2 (en) 2013-11-26 2017-10-03 Aktiebolaget Skf Cam follower roller device
CN104675465B (en) * 2013-11-26 2019-04-16 Skf公司 Cam driven roller arrangement
CN104747336B (en) * 2013-11-26 2020-12-29 Skf公司 Cam follower roller device
IT201800009454A1 (en) * 2018-10-15 2020-04-15 Bosch Gmbh Robert PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE
WO2020078612A1 (en) * 2018-10-15 2020-04-23 Robert Bosch Gmbh Pumping unit for feeding fuel, preferably diesel fuel, to an internal combustion engine

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