WO2016198193A1 - Poussoir à galet pour pompe à piston, pompe à piston - Google Patents

Poussoir à galet pour pompe à piston, pompe à piston Download PDF

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Publication number
WO2016198193A1
WO2016198193A1 PCT/EP2016/058840 EP2016058840W WO2016198193A1 WO 2016198193 A1 WO2016198193 A1 WO 2016198193A1 EP 2016058840 W EP2016058840 W EP 2016058840W WO 2016198193 A1 WO2016198193 A1 WO 2016198193A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
region
bearing gap
radial bearing
plunger body
Prior art date
Application number
PCT/EP2016/058840
Other languages
German (de)
English (en)
Inventor
Zafer AKKAYA
Gerhard Meier
Frieder Necker
Markus Majer
Andreas Dutt
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201680034004.9A priority Critical patent/CN107709711B/zh
Publication of WO2016198193A1 publication Critical patent/WO2016198193A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • 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
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18—Lubricating
    • 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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/1045—Details of supply of the liquid to the bearing
    • 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
    • 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
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure

Definitions

  • roller tappet for a piston pump, piston pump The invention relates to a roller tappet for a piston pump, in particular a
  • High-pressure fuel pump with the features of the preamble of claim 1.
  • the roller tappet serves to support a pump piston of the piston pump to a cam or eccentric drive shaft.
  • the invention relates to a piston pump, in particular a high-pressure fuel pump for supplying a combustion engine with fuel, with such a roller tappet.
  • a roller tappet of the aforementioned type is shown by way of example from the disclosure DE 10 2012 223 413 Al.
  • the well-known roller tappet has a
  • Plunger part which is supported via a rotatably mounted in the plunger part roller on a drive device.
  • improved lubrication of the bearing area over at least one provided in the ram part passage and a groove is proposed.
  • the passage connects an inner area of the
  • the Plunger part in which the bearing of the roller is arranged, with the outer jacket of the plunger part.
  • the arrangement of the passage takes place in such a way that it opens into the groove.
  • the groove is provided in a peripheral region of the plunger part adjoining an end face of the roller pointing in the direction of its axis of rotation in its inner jacket and extends in the direction of the longitudinal axis of the roller plunger.
  • the lubricant passing via the passage into the inner region of the tappet part is primarily supplied to an axial bearing gap between the roller and the inner jacket of the tappet part.
  • the present invention has the object to improve the lubrication in the region of a radial bearing gap of a roller tappet for a piston pump between a roller and a pin for rotatably supporting the roller or between the roller and a bearing bush is trained. In this way, a roller tappet is to be created, which is less susceptible to wear.
  • roller tappet is specified with the features of claim 1.
  • piston pump is proposed with the features of claim 8.
  • Advantageous developments of the invention can be found in the respective subclaims.
  • the roller tappet proposed for supporting a liftable pump piston on a cam or eccentric of a drive shaft comprises a tappet body and a hollow cylindrical roller which, in an end recess of the
  • Plunger body received in some areas and is rotatably mounted directly or indirectly on a bearing bush on a bolt.
  • a trained between the roller and the bolt or between the roller and the bearing bush radial bearing gap is supplied via at least one opening formed in the plunger body and opening into the frontal recess of the plunger bore with a lubricating medium.
  • the roller in the region of its outer circumferential surface and / or in the region of its inner peripheral surface and / or in the region of at least one end face has at least one geometry influencing the flow of the lubricating medium.
  • the influencing of the flow of the lubricating medium may also be to collect and maintain at least a subset of the lubricating medium, so that in each operating state, a sufficient amount of the lubricating medium is available for lubricating and cooling the roller plunger in the region of the radial bearing gap.
  • the amount of lubricant can be reduced because of the proposed geometry, a defined state of lubrication in the radial bearing gap can be achieved. The reduction in the amount of lubricant in turn leads to an increase in the efficiency of the system.
  • the geometry is formed in the region of the inner peripheral surface of the roller and the radial bearing gap upstream annular groove. At least a subset of the lubricant medium supplied via the bore provided in the tappet body can be collected via the annular groove, so that a kind of depot for the lubricating medium is formed. From the depot, the radial bearing gap continuously lubricating medium can be supplied to ensure the required lubrication.
  • serving as a depot annular groove is this arranged in the region of an inner peripheral surface of the roller and that before the radial bearing gap. This ensures, on the one hand, that at least one partial stream of the lubricating medium is supplied to the depot and, on the other hand, that lubricant taken from the depot enters the radial bearing gap. Further, this embodiment of the invention utilizes the centrifugal force due to the rotational movement of the roller causing increased hydraulic pressure in the annular groove. The increased hydraulic pressure promotes the supply of the radial bearing gap with the lubricant stored in the annular groove.
  • the annular groove provided in the region of an inner circumferential surface of the roller can be produced both by a material-removing method and by a material-applying method.
  • the geometry is formed in the region of the inner peripheral surface of the roller and the radial bearing gap upstream circumferential nose having a radial bearing gap facing edge, which is inclined relative to the inner peripheral surface at an angle which is less than 90 ° , Preferably, the angle is less than 70 °, more preferably less than 50 °.
  • the inclined flank of the protruding circumferential nose forms an inlet funnel, over which the radial bearing gap targeted lubricating medium is supplied.
  • the geometry is a formed in the region of the inner peripheral surface of the roller and the radial bearing gap upstream groove extending from the end face of the roller to the radial bearing gap and is set at an angle to the direction of rotation of the roller. That is, the groove extends away from the end face in a direction opposite to the direction of rotation of the roll.
  • the groove in combination with the rotational movement of the roller, contributes to establishing a hydraulic pressure at the edge of the radial bearing gap, which contributes to the formation of a constant lubricating film.
  • a plurality of similar grooves are formed at the same angular distance from one another in the region of the inner peripheral surface of the roller, since the number of grooves, the advantageous effect can be increased.
  • the geometry is a groove formed in the region of the outer peripheral surface, which extends from the center of the roller to an end face and is set at an angle to the direction of rotation of the roller.
  • This embodiment makes use of a drag flow on the outer peripheral surface of the roller, so that lubricating medium, which surrounds the outside circumference of the roller, is guided in a targeted manner into the bearing areas to be lubricated.
  • lubricating medium which surrounds the outside circumference of the roller
  • a targeted manner into the bearing areas to be lubricated are on the one hand to the radial bearing gap, on the other hand to an axial La- Gerspalt formed between the plunger body and the end face roller and / or the bearing bush.
  • a plurality of identical grooves are formed at the same angular distance from each other in the region of the outer peripheral surface.
  • the grooves are preferably inclined so that they lead from the center of the roller in the direction of rotation of the roller obliquely outward in the direction of the respective end face.
  • the provided for supplying the radial bearing gap with a lubricating medium bore preferably extends from the outer periphery of the plunger body radially inward to the recess in which the roller is partially received.
  • the lubricating medium surrounding the plunger body can be used to lubricate the roller bearing.
  • the bore ensures the necessary connection of the recess of the tappet body, in which the roller is received, with the cylinder bore, in which the tappet body is accommodated.
  • the bore opens in the region of an axial bearing gap, which is formed between the plunger body and an end face of the roller and / or the bearing bush, in the recess.
  • an adequate supply of both the radial bearing gap, and the axial bearing gap is ensured with lubricating medium.
  • the bore can be guided in particular radially or obliquely through the wall of the plunger body.
  • a piston pump in particular a high-pressure fuel pump for supplying fuel to an internal combustion engine, which comprises a liftable pump piston which is supported on a cam or eccentric of a drive shaft via a roller tappet according to the invention.
  • the plunger body of the roller tappet is received in a cylinder bore of a housing part of the piston pump liftable.
  • the plunger body is secured against rotation in the cylinder bore.
  • the rotation is particularly important if the proposed geometry for influencing the flow of the lubricant from the direction of rotation of the Role is dependent.
  • the anti-twist device ensures that the direction of rotation of the roller is always the same.
  • the hole provided in the tappet body which serves to supply the radial bearing gap with a lubricating medium, is connected to an engine-internal pressure oil supply line. Accordingly, no separate lubricant medium must be provided.
  • the pressure prevailing in the pressure oil supply line also promotes the supply of the lubricating medium in the region of the roller bearing.
  • FIG. 1 shows a schematic longitudinal section through a piston pump according to the invention in the region of the roller tappet
  • FIG. 2 shows a schematic longitudinal section through a roller tappet according to the invention according to a first preferred embodiment in the area of the geometry provided on the roller,
  • FIG. 3 shows a schematic longitudinal section through a roller tappet according to the invention according to a second preferred embodiment in the area of the geometry provided on the roller,
  • FIG. 4 shows a schematic longitudinal section through a roller tappet according to the invention according to a third preferred embodiment in the region of the geometry provided on the roller,
  • FIG. 5 is a schematic plan view of the inner peripheral surface of the roller of Fig. 4 in an enlarged view
  • Fig. 6 is a schematic plan view of a roller tappet according to the invention according to a fourth preferred embodiment and Fig. 7 is a schematic longitudinal section through a roller tappet according to the invention according to a fifth preferred embodiment.
  • FIG. 1 shows a piston pump according to the invention with a roller tappet 1 for supporting a lifting pump piston 2 on a cam 3 of a rotating drive shaft 4.
  • the roller tappet 1 comprises a tappet body 5, which is received in a liftable manner in a cylinder bore 19 of a housing part 20 of the piston pump, and a roller 6, which is partially received and rotatably mounted in a frontal recess 7 of the tappet body 5.
  • the rotatable mounting of the roller 6 is effected via a pin 9, which passes through the plunger body 5 in the region of the recess 7 and is held at its ends in the plunger body 5.
  • a bearing bush 8 is arranged between the pin 9 and the roller 6, which, however, is not absolutely necessary.
  • the roller 6 is rotatable about a rotation axis 22, which is arranged perpendicular to a longitudinal axis 23 of the roller tappet 1 and parallel to a longitudinal axis 24 of the drive shaft 4.
  • the lubricant enters the storage area of the roller 6.
  • a radial bearing gap 10 which is formed between the roller 6 and the bearing bush 8, with the lubricating medium ensure at least one bore 11 is provided in the plunger body 5, which extends obliquely radially inwardly from the outer periphery of the plunger body 5 and opens into the recess 7.
  • the bore 11 is arranged such that it opens in the region of an axial bearing gap 18 in the recess 7, in such a way that the mouth region is the radial bearing gap 10 at the axial bearing gap 18 opposite. In this way, the on the rotational movement of the Roll attributable centrifugal force can be used to distribute the lubricant.
  • the roller 6 of the roller tappet 1 of Fig. 1 also has a arranged in the region of its inner peripheral surface 13 geometry 15 in the form of the radial bearing gap 10 upstream annular groove.
  • the reaching over the bore 11 in the axial bearing gap 18 lubricating medium collects, so that at the entrance of the radial bearing gap 10, a lubricating medium reservoir is formed, via which the radial bearing gap 10 continuously lubricating medium can be fed.
  • FIG. 2 An enlarged view of a designed as an annular groove geometry 15 is shown in FIG. 2.
  • the arrows represent the direction of flow of the lubricating medium.
  • the centrifugal force initially forces the lubricating medium radially outward. Since the geometry formed as an annular groove 15 is disposed upstream of the radial bearing gap 10, a subset of the lubricating medium is collected.
  • the pressure in the annular groove increases as a result of the lubricating medium collecting in the annular groove, so that the supply of the radial bearing gap 10 with the lubricating medium is still promoted.
  • FIG. 3 Another geometry 15 is shown in FIG. 3. It is designed as a circumferential nose, which has a radial bearing gap 10 upstream inclined edge 16, so that an inlet funnel is formed. About the edge 16 is the radial bearing gap 10 selectively supplied lubricating medium.
  • a further possible embodiment of the geometry 15 can be removed.
  • a circumferential groove here several opposite to the direction of rotation 17 of the roller 6 employed and over the inner peripheral surface 13 evenly distributed grooves provided (see Fig. 5). The grooves cause that a subset of the lubricating medium is selectively supplied to the radial bearing gap 10.
  • the outer peripheral surface 12 of the roller 6 has a plurality of grooves which are guided obliquely outwardly from the center of the roller 6, against the direction of rotation 17 of the Roller 6.
  • the grooves extend up to the lateral end faces 14 of the roller 6, so that in particular lubricating medium from the recess 7 of the
  • Tappet body 5 is guided in the axial bearing gap 18. This applies in particular when the supply of the lubricating medium into the recess 7 via holes 11 ', which pass through the plunger body 5 in the axial direction (see also Fig. 7). Since the effect of the direction of rotation 17 of the roller 6 is dependent, the plunger body 5 has a rotation 26 in the form of an outer peripheral side recess for receiving a pin or the like.
  • FIG. 7 A further development measure for the optimization of the lubrication is shown in FIG. 7.
  • the cross-sectional shape of the recess 7 is selected such that a remaining between the outer peripheral surface 12 of the roller 6 and the plunger body 5 gap has a decreasing in the direction of rotation 17 of the roller 6 gap width. This leads to an increase in pressure in the gap, which in particular reinforces the effect of outer peripheral side grooves analogously to the embodiment of FIG.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un poussoir à galet (1) pour une pompe à piston, assurant l'appui d'un piston de pompe (2) mobile en translation sur une came (3) ou un excentrique d'un arbre d'entraînement (4), comprenant un corps de poussoir (5) et un galet cylindrique creux (6) disposé partiellement dans un logement (7) de la partie terminale du corps de poussoir (5) et monté rotatif sur un axe (9), directement, ou indirectement par l'intermédiaire d'une bague de palier (8), de telle sorte qu'un interstice radial (10) est formé entre le galet (6) et l'axe (9), ou entre le galet (6) et la bague de palier (8), dans lequel un lubrifiant peut introduit par un perçage (11) formé dans le corps de poussoir (5) et débouchant dans le logement (7). Selon l'invention, le galet (6) présente au niveau de sa surface périphérique externe (12), au niveau de sa surface périphérique interne (13) et/ou au niveau d'au moins un flanc (14), une géométrie (15) apte à influencer l'écoulement de lubrifiant.
PCT/EP2016/058840 2015-06-12 2016-04-21 Poussoir à galet pour pompe à piston, pompe à piston WO2016198193A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680034004.9A CN107709711B (zh) 2015-06-12 2016-04-21 用于活塞泵的滚子挺杆、活塞泵

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015210815.5A DE102015210815A1 (de) 2015-06-12 2015-06-12 Rollenstößel für eine Kolbenpumpe, Kolbenpumpe
DE102015210815.5 2015-06-12

Publications (1)

Publication Number Publication Date
WO2016198193A1 true WO2016198193A1 (fr) 2016-12-15

Family

ID=55808577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/058840 WO2016198193A1 (fr) 2015-06-12 2016-04-21 Poussoir à galet pour pompe à piston, pompe à piston

Country Status (3)

Country Link
CN (1) CN107709711B (fr)
DE (1) DE102015210815A1 (fr)
WO (1) WO2016198193A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111836963A (zh) * 2018-01-19 2020-10-27 思科普有限责任公司 曲轴
CN112128236A (zh) * 2020-09-21 2020-12-25 西安电子科技大学 一种滚滑径向-滑动止推的组合轴承
CN115370567A (zh) * 2022-09-23 2022-11-22 北京天玛智控科技股份有限公司 柱塞泵
US20230003183A1 (en) * 2019-12-19 2023-01-05 Mustafa Utku Unal Tappet roller assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016218909A1 (de) * 2016-09-29 2018-03-29 Robert Bosch Gmbh Rollenstößel für eine Kolbenpumpe, Kolbenpumpe
DE102017219367A1 (de) * 2017-10-27 2019-05-02 Robert Bosch Gmbh Stößel, insbesondere Rollenstößel, für eine Pumpe und Pumpe mit Stößel
DE102018214200A1 (de) * 2018-08-22 2020-02-27 Robert Bosch Gmbh Rollenstößel für eine Pumpe, insbesondere eine Hochdruckpumpe eines Kraftstoffeinspritzsystems, und Pumpe mit Rollenstößel
DE102019216165A1 (de) * 2019-10-21 2021-04-22 Robert Bosch Gmbh Rollenstößel für eine Kolbenpumpe, Kolbenpumpe

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EP2035687A2 (fr) * 2006-06-30 2009-03-18 Caterpillar Inc. Ensemble poussoir
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US20130133621A1 (en) * 2011-11-29 2013-05-30 Caterpillar Inc. Thrust Lubrication Strategy For Roller Lifters Of A Common Rail Fuel Pump
DE102012223413A1 (de) * 2012-12-17 2014-06-18 Robert Bosch Gmbh Rollenstößel für eine Pumpe, insbesondere Kraftstoffhochdruckpumpe, und Pumpe mit Rollenstößel

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Publication number Priority date Publication date Assignee Title
JPH01153863A (ja) * 1987-12-11 1989-06-16 Koyo Seiko Co Ltd ローラー付カムフォロア
GB2326694A (en) * 1997-06-23 1998-12-30 Daido Metal Co Roller support and lubrication
JP2004036781A (ja) * 2002-07-04 2004-02-05 Koyo Seiko Co Ltd カムフォロワ
EP2035687A2 (fr) * 2006-06-30 2009-03-18 Caterpillar Inc. Ensemble poussoir
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US20130133621A1 (en) * 2011-11-29 2013-05-30 Caterpillar Inc. Thrust Lubrication Strategy For Roller Lifters Of A Common Rail Fuel Pump
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CN111836963A (zh) * 2018-01-19 2020-10-27 思科普有限责任公司 曲轴
US20230003183A1 (en) * 2019-12-19 2023-01-05 Mustafa Utku Unal Tappet roller assembly
CN112128236A (zh) * 2020-09-21 2020-12-25 西安电子科技大学 一种滚滑径向-滑动止推的组合轴承
CN115370567A (zh) * 2022-09-23 2022-11-22 北京天玛智控科技股份有限公司 柱塞泵

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