EP2657505A1 - Hochdruckkraftstoffpumpenanordnung - Google Patents

Hochdruckkraftstoffpumpenanordnung Download PDF

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Publication number
EP2657505A1
EP2657505A1 EP12165506.2A EP12165506A EP2657505A1 EP 2657505 A1 EP2657505 A1 EP 2657505A1 EP 12165506 A EP12165506 A EP 12165506A EP 2657505 A1 EP2657505 A1 EP 2657505A1
Authority
EP
European Patent Office
Prior art keywords
shoe
fuel pump
guide
high pressure
pressure fuel
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
EP12165506.2A
Other languages
English (en)
French (fr)
Other versions
EP2657505B1 (de
Inventor
Mikko Jay
Leon Whitehead
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.)
Delphi International Operations Luxembourg SARL
Original Assignee
Delphi Technologies Holding SARL
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 Delphi Technologies Holding SARL filed Critical Delphi Technologies Holding SARL
Priority to ES12165506.2T priority Critical patent/ES2545122T3/es
Priority to EP12165506.2A priority patent/EP2657505B1/de
Priority to HUE12165506A priority patent/HUE025332T2/en
Priority to JP2013090035A priority patent/JP2013231430A/ja
Priority to KR1020130044680A priority patent/KR101568140B1/ko
Priority to CN2013103535615A priority patent/CN103423045A/zh
Publication of EP2657505A1 publication Critical patent/EP2657505A1/de
Application granted granted Critical
Publication of EP2657505B1 publication Critical patent/EP2657505B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • 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
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam

Definitions

  • the present invention relates to a high pressure fuel pump for pumping a liquid fuel, such as diesel fuel.
  • the invention also relates to a shoe; and a shoe guide for a high pressure fuel pump.
  • a shoe for engaging a follower roller in a high pressure fuel pump can be subject to fatigue wear. It is desirable to reduce the fatigue wear to extend the service life of the fuel pump.
  • the present invention sets out to help ameliorate or overcome at least some of the problems associated with prior art systems.
  • aspects of the present invention relate to a high pressure fuel pump; a shoe; and a shoe guide for a high pressure fuel pump.
  • the present invention relates to a high pressure fuel pump assembly for an internal combustion engine, the pump assembly comprising:
  • the shoe is typically provided between an upper cambox and a lower cambox.
  • the at least one fluid pathway can be suitable for maintaining fluid communication between an upper cambox and a main cambox of the pump assembly.
  • the circulation of lubricant between the upper cambox and the main cambox can be improved.
  • the at least one aperture can improve pressure stability between the upper cambox and the main cambox.
  • the high pressure fuel pump can further comprising a bypass channel arranged to bypass the shoe assembly.
  • the bypass channel can provide an alternate fluid pathway between the upper cambox and the main cambox. The provision of the bypass channel and said at least one fluid pathway can promote the circulation of lubricant within the pump.
  • the at least one aperture can extend substantially parallel to a longitudinal axis of the shoe (along which the shoe travels). Alternatively, said at least one aperture could be inclined relative to said longitudinal axis.
  • the at least one aperture can comprise a first channel formed in a sidewall of the shoe.
  • the first channel can provide a fluid pathway past the shoe in the pump assembly.
  • the at least one aperture can comprise a concave section formed in a sidewall of the shoe.
  • the concave section can form a fluid pathway between the shoe and the shoe guide.
  • the shoe can be elongated in a transverse direction, thereby defining long and short sidewalls.
  • An aperture could be formed in one of the short sidewalls of the shoe.
  • an aperture could be formed in one of the long sidewalls of the shoe.
  • the at least one aperture could comprise a second channel formed in the shoe guide.
  • the second channel can provide a fluid pathway past the shoe in the pump assembly.
  • the second channel could be a cut-out formed in the guide face of the shoe guide.
  • the second channel could, for example, comprise a concave section.
  • the pump assembly could comprise either said first channel in the shoe or said second channel in the shoe guide. Alternatively, both said first and second channels could be provided. The first and second channels could be aligned with each other to form the fluid pathway.
  • the fluid pathway could, for example, have an elliptical or circular profile.
  • the at least one aperture could comprise a bore formed in the shoe and/or the shoe guide.
  • One or more bores could be provided in addition to, or instead of forming an aperture in the shoe and/or the shoe guide.
  • the bore can be coincident with or offset from the part cylindrical recess formed on the lower side of the shoe.
  • the present invention relates to a shoe for cooperating with a follower roller in a high pressure fuel pump, the shoe having an upper side, a lower side and a sidewall; a part cylindrical recess being formed on the lower side of the shoe for receiving a follower roller; wherein at least one aperture is provided in said shoe for forming at least one fluid pathway to maintain fluid communication between the upper and lower sides of the shoe.
  • the at least one aperture can comprise a first channel formed in the sidewall of the shoe.
  • the at least one aperture can comprise a concave section formed in the sidewall of the shoe.
  • the shoe can be elongated in a transverse direction, thereby defining two long sidewalls and two short sidewalls.
  • An aperture could be formed in one or both of the short sidewalls of the shoe.
  • an aperture could be formed in one or both of the long sidewalls of the shoe.
  • the at least one aperture can comprise a bore formed in the shoe.
  • the bore can extend substantially parallel to a longitudinal axis of the shoe.
  • the bore can be coincident with, or offset from the part cylindrical recess formed on the lower side of the shoe.
  • the present invention relates to a shoe guide for guiding a shoe in a high pressure fuel pump, the shoe guide having an inner wall defining at least one guide face for engaging a sidewall of the shoe; wherein at least one aperture is provided in said inner wall for forming at least one fluid pathway past the shoe.
  • the at least one aperture can comprise a channel or recess formed in the inner wall of the shoe guide.
  • the present invention also relates to an assembly comprising a shoe and a shoe guide as described herein.
  • a high pressure fuel pump 1 in accordance with the present invention is shown in Figure 1 .
  • the fuel pump 1 is intended for pumping diesel fuel to a common rail of an internal combustion engine. It will be appreciated, however, that the techniques described herein could be used in other applications.
  • the fuel pump 1 comprises a plunger 3 for supplying high pressure fuel to a fuel injection system.
  • the plunger 3 is located in a housing 5 comprising a hydraulic head 7 having a fuel inlet port 9 and a fuel outlet port 11.
  • An inlet valve 13 is provided in the fuel inlet port 9 and an outlet valve 15 is provided in the fuel outlet port 11.
  • the plunger 3 is movable along a longitudinal axis X in a reciprocating action within a pumping chamber 17.
  • a lower end of the plunger 3 is coupled to a shoe 19 movable along the longitudinal axis X.
  • the shoe 19 is supported in a shoe guide 21 formed by a cylindrical insert 23 provided in the housing 5.
  • the shoe 19 is elongated along a transverse axis Y and comprises an upper side 25, a lower side 27, a first sidewall 29, a second sidewall 31, a third sidewall 33 and a fourth sidewall 35.
  • the shoe 19 has a generally rectangular plan form and the first and second sidewalls 29, 31 are longer than the third and fourth sidewalls 33, 35.
  • a part cylindrical recess 37 is formed in the lower side 27 of the shoe 19 to receive a follower roller 39.
  • the follower roller 39 is movably mounted in the shoe guide 21. Specifically, the follower roller 39 can rotate about the transverse axis Y and translate along the longitudinal axis X.
  • the follower roller 39 is arranged to follow a cam 41 provided on a rotatable driveshaft 43.
  • the rotation of the driveshaft 43 causes the cam 41 to displace the follower roller 39 and the shoe 19 upwardly, thereby advancing the plunger 3 into the pumping chamber 17.
  • a spring 45 is provided to bias the plunger 3 downwardly, thereby retracting the plunger 3 and maintaining the follower roller 39 in contact with a surface of the cam 41.
  • the rotation of the driveshaft 43 causes the plunger 3 to reciprocate within the pumping chamber 17.
  • the spring 45 and the lower end of the plunger 3 are provided in an upper cambox 47 within the housing 5.
  • the driveshaft 43 is provided in a main cambox 49 positioned beneath the upper cambox 47.
  • the upper side 25 of the shoe 19 is in fluid communication with the upper cambox 47; and the lower side 27 of the shoe 19 (and the follower roller 39) is in fluid communication with the main cambox 49.
  • a bypass conduit 51 is formed in the housing 5 to define a fluid channel between the upper cambox 47 and the main cambox 49.
  • an inner wall 53 of the shoe guide 21 is profiled to define a plurality of discrete shoe guide faces 55a-f extending parallel to the longitudinal axis X to contact the sidewalls 29, 31, 33, 35 of the shoe guide 21.
  • the guide faces 55a-f maintain the alignment of the shoe 19 as it travels within the shoe guide 21.
  • the lateral guide faces 55a-d engage the first and second sidewalls 29, 31; and the end guide face 55e, f engage the third and fourth sidewalls 33, 35.
  • the shoe 19 and the shoe guide 21 are also profiled to define two side channels 57 and four corner channels 59 for maintaining the upper cambox 47 in fluid communication with the main cambox 49.
  • the side channels 57 are defined by concave sections formed in the first and second sidewalls 29, 31 of the shoe 19 and also in the inner wall 53 of the shoe guide 21. Accordingly, the side channels 57 have a generally elliptical cross section.
  • the corner channels 59 are defined by concave cut-outs formed in the inner wall 53 of the shoe guide 21 and by forming each corner of the shoe 19 in a radius.
  • a perspective view of the shoe 19 is shown in Figure 3 .
  • the driveshaft 43 rotates about an axis parallel to the transverse axis Y.
  • the rotation of the cam 41 displaces the follower roller 39 and the shoe 19 upwardly within the shoe guide 21.
  • the spring 45 biases the shoe 19 and the follower roller 39 downwardly. Since the plunger 3 is coupled to the shoe 19, the plunger 3 advances and retracts in a reciprocating motion within the pumping chamber 17.
  • the outlet valve 15 is closed and fuel is drawn into the pumping chamber 17 through the fuel inlet port 9.
  • the inlet valve 13 is closed and the fuel is pressurised in the pumping chamber 17 before exiting through the fuel outlet port 11.
  • the bypass channel 51 provides fluid communication between the upper cambox 47 and the main cambox 49.
  • lubricant can travel from the main cambox 49 to the upper cambox 47 via the bypass conduit 51.
  • the channels 57, 59 formed in the shoe 19 provide additional fluid pathways between the upper cambox 47 and the main cambox 49.
  • the channels 57, 59 can thereby promote the circulation of lubricant within the pump 1.
  • the channels 57, 59 can improve hydrodynamic lubrication at the interface between the shoe 19 and the follower roller 39; and at the interface between the follower roller 39 and the cam 41.
  • the sliding friction can be reduced, thereby increasing fatigue life and improving overall robustness of the pump 1.
  • the channels 57, 59 may also improve damping, thereby improving pressure stability between the upper cambox 49 and the main cambox 47. There is potentially also a reduction in the turbulence created within the upper cambox 49 and the main cambox 47.
  • FIG. 4 and 5 A shoe and shoe guide according to a second embodiment of the present invention are illustrated in Figures 4 and 5 .
  • the second embodiment is similar to the first embodiment described herein and like reference numerals will be used for like components, albeit suffixed with a prime modifier for clarity.
  • the shoe 19' and the shoe guide 21' in the second embodiment have been modified.
  • the opposing first and second sidewalls 29', 31' of the shoe 19' each have a convex profile; and the opposing third and fourth sidewalls 33', 35' are substantially planar.
  • the inner wall 53' of the shoe guide 21' is profiled to define four shoe guide faces 55'a-d for engaging a central section of the corresponding sidewalls 29', 31', 33', 35' of the shoe 19'.
  • First and second lateral guide faces 55'a, b engage the respective first and second sidewalls 29', 31'; and third and fourth end guide faces 55'c, d engage the respective third and fourth sidewalls 33', 35'.
  • the shoe 19' and the shoe guide 21' are profiled to define four corner channels 59'.
  • the corner channels 59' are defined by concave cut-outs formed in the inner wall 53' of the shoe guide 21'.
  • the corner channels 59' maintain the upper cambox 47' in fluid communication with the main cambox 49'.
  • a perspective view of the shoe 19' is shown in Figure 5 .
  • the operation of the pump 1' incorporating the shoe 19' and the shoe guide 21' according to the second embodiment is unchanged from that of the first embodiment.
  • the corner channels 59' allow lubricant to travel between the upper cambox 47' and the main cambox 49'.
  • FIG. 6 A shoe and shoe guide according to a third embodiment of the present invention is illustrated in Figure 6 .
  • the third embodiment is similar to the first embodiment described herein and like reference numerals will again be used for like components, albeit suffixed with two prime modifiers for clarity.
  • the sidewalls 29", 31 ", 33", 35" of the shoe 19" are substantially planar and a radius is formed at each corner.
  • Four corner channels 59" are defined by concave cut-outs formed in the inner wall 53" of the shoe guide 21 ". As before, the corner channels 59" maintain the upper cambox in fluid communication with the main cambox.
  • four shoe guide bores 61 are formed in the shoe guide 21". The shoe guide bores 61 are arranged substantially parallel with the longitudinal axis X and extend through the shoe guide 21 ". The shoe guide bores 61 thereby provide additional fluid pathways between the upper cambox and the main cambox.
  • the first, second and third embodiments described herein provide fluid pathways at the interface between the shoe 19 and the shoe guide 21 to enable lubricant to flow past the shoe 19.
  • An alternate approach is to form one or more bores in the shoe 19.
  • the shoe bores can extend through the shoe 19 thereby providing one or more fluid pathways between the upper and lower sides 25, 27 of the shoe 19.
  • the shoe bores can facilitate the introduction of lubricant directly at the interface between the shoe 19 and the follower roller 39.
  • a modified shoe 19 having first and second shoe bores 63 is illustrated in Figure 7 .
  • the upper and/or lower edges of the shoe bores 63 can be chamfered.
  • the embodiments described herein can utilise the liquid fuel being pumped by the high pressure fuel pump 1 to provide lubrication. Alternate arrangements may require a separate lubricant which is different from the liquid fuel.
  • the liquid fuel could be contained within the hydraulic head 7 and a separate lubricant provided for lubricating the pump 1.
  • a modified embodiment of the high pressure fuel pump 1 described herein could provide a lubricant, such as oil, in the upper cambox 47 and the main cambox 49 for lubricating the pump 1. The liquid fuel to be pumped would be prevented from entering the upper cambox 47 and the main cambox 49 from the pumping chamber 17.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
EP12165506.2A 2012-04-25 2012-04-25 Hochdruckkraftstoffpumpenanordnung Active EP2657505B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES12165506.2T ES2545122T3 (es) 2012-04-25 2012-04-25 Conjunto de bomba de combustible de alta presión
EP12165506.2A EP2657505B1 (de) 2012-04-25 2012-04-25 Hochdruckkraftstoffpumpenanordnung
HUE12165506A HUE025332T2 (en) 2012-04-25 2012-04-25 High Pressure Fuel Pump Unit
JP2013090035A JP2013231430A (ja) 2012-04-25 2013-04-23 高圧燃料ポンプ組立体
KR1020130044680A KR101568140B1 (ko) 2012-04-25 2013-04-23 고압 연료 펌프 조립체
CN2013103535615A CN103423045A (zh) 2012-04-25 2013-04-25 高压燃油泵组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12165506.2A EP2657505B1 (de) 2012-04-25 2012-04-25 Hochdruckkraftstoffpumpenanordnung

Publications (2)

Publication Number Publication Date
EP2657505A1 true EP2657505A1 (de) 2013-10-30
EP2657505B1 EP2657505B1 (de) 2015-07-22

Family

ID=46049232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12165506.2A Active EP2657505B1 (de) 2012-04-25 2012-04-25 Hochdruckkraftstoffpumpenanordnung

Country Status (6)

Country Link
EP (1) EP2657505B1 (de)
JP (1) JP2013231430A (de)
KR (1) KR101568140B1 (de)
CN (1) CN103423045A (de)
ES (1) ES2545122T3 (de)
HU (1) HUE025332T2 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2915994A1 (de) * 2014-03-06 2015-09-09 Continental Automotive GmbH Stößelanordnung und Pumpe
WO2016150650A1 (en) * 2015-03-26 2016-09-29 Delphi International Operations Luxembourg S.À R.L. An oil lubricated common rail diesel pump
CN106150806A (zh) * 2015-03-26 2016-11-23 罗伯特·博世有限公司 柱塞泵和高压燃油泵
WO2017029295A1 (en) * 2015-08-18 2017-02-23 Delphi International Operations Luxembourg S.À R.L. High pressure diesel fuel pumps
GB2543500A (en) * 2015-10-19 2017-04-26 Delphi Int Operations Luxembourg Sarl High pressure fuel pump
EP3191711A1 (de) * 2014-09-10 2017-07-19 Delphi International Operations Luxembourg S.à r.l. Pumpmechanismus
WO2017194622A1 (en) * 2016-05-11 2017-11-16 Delphi International Operations Luxembourg S.À R.L. Seal
GB2551203A (en) * 2016-06-10 2017-12-13 Delphi Int Operations Luxembourg Sarl Guiding arangement of high pressure pump
WO2017216321A1 (fr) * 2016-06-16 2017-12-21 Poclain Hydraulics Industrie Piston à galet pour machine hydraulique, venu de matière avec élément de centrage formé pour limiter les frottements avec un galet
EP3318746A1 (de) * 2016-11-02 2018-05-09 Delphi International Operations Luxembourg S.à r.l. Kraftstoffpumpe und schuhführung
GB2568674A (en) * 2017-11-20 2019-05-29 Delphi Tech Ip Ltd High pressure fuel pump

Citations (7)

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Publication number Priority date Publication date Assignee Title
US4209079A (en) 1977-03-30 1980-06-24 Fives-Cail Babcock Lubricating system for bearing shoes
EP1319831A2 (de) * 2001-12-13 2003-06-18 Robert Bosch Gmbh Kraftstoffhochdruckpumpe mit integrierter Sperrflügel-Vorförderpumpe
DE102007003125A1 (de) * 2007-01-15 2008-07-17 Robert Bosch Gmbh Hochdruckpumpe für ein Kraftstoffsystem einer Brennkraftmaschine
US7568461B1 (en) 2008-06-20 2009-08-04 Gm Global Technology Operations, Inc. Tappet roller end shape for improved lubrication and combination with fuel pump and engine
DE102008002195A1 (de) * 2008-06-04 2009-12-10 Robert Bosch Gmbh Steckpumpe für eine Verbrennungskraftmaschine
DE102010042509A1 (de) * 2010-10-15 2012-04-19 Robert Bosch Gmbh Rollenschuh für eine Hochdruckpumpe eines Kraftstoffeinspritzsystems
DE102010042488A1 (de) * 2010-10-15 2012-04-19 Robert Bosch Gmbh Hochdruckpumpe eines Kraftstoffeinspritzsystems

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JP2004324536A (ja) * 2003-04-24 2004-11-18 Bosch Automotive Systems Corp 燃料供給用ポンプおよびタペット構造体
JP2004218459A (ja) * 2003-01-10 2004-08-05 Bosch Automotive Systems Corp 燃料供給用ポンプおよびタペット構造体
GB0519680D0 (en) * 2005-09-27 2005-11-02 Delphi Tech Inc Fuel pump assembly
DE102006045933A1 (de) 2006-09-28 2008-04-03 Robert Bosch Gmbh Stößelbaugruppe für eine Hochdruckpumpe und Hochdruckpumpe mit wenigstens einer Stößelbaugruppe
JP2011094596A (ja) * 2009-11-02 2011-05-12 Denso Corp タペット装置およびそのタペット装置を用いた燃料供給ポンプ
DE102010030498A1 (de) * 2010-06-24 2011-12-29 Robert Bosch Gmbh Pumpe, insbesondere Kraftstoffhochdruckpumpe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209079A (en) 1977-03-30 1980-06-24 Fives-Cail Babcock Lubricating system for bearing shoes
EP1319831A2 (de) * 2001-12-13 2003-06-18 Robert Bosch Gmbh Kraftstoffhochdruckpumpe mit integrierter Sperrflügel-Vorförderpumpe
DE102007003125A1 (de) * 2007-01-15 2008-07-17 Robert Bosch Gmbh Hochdruckpumpe für ein Kraftstoffsystem einer Brennkraftmaschine
DE102008002195A1 (de) * 2008-06-04 2009-12-10 Robert Bosch Gmbh Steckpumpe für eine Verbrennungskraftmaschine
US7568461B1 (en) 2008-06-20 2009-08-04 Gm Global Technology Operations, Inc. Tappet roller end shape for improved lubrication and combination with fuel pump and engine
DE102010042509A1 (de) * 2010-10-15 2012-04-19 Robert Bosch Gmbh Rollenschuh für eine Hochdruckpumpe eines Kraftstoffeinspritzsystems
DE102010042488A1 (de) * 2010-10-15 2012-04-19 Robert Bosch Gmbh Hochdruckpumpe eines Kraftstoffeinspritzsystems

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015132052A1 (en) * 2014-03-06 2015-09-11 Continental Automotive Gmbh Tappet arrangement and pump
EP2915994A1 (de) * 2014-03-06 2015-09-09 Continental Automotive GmbH Stößelanordnung und Pumpe
EP3191711B1 (de) * 2014-09-10 2021-10-06 Delphi Technologies IP Limited Pumpmechanismus
EP3191711A1 (de) * 2014-09-10 2017-07-19 Delphi International Operations Luxembourg S.à r.l. Pumpmechanismus
US10174733B2 (en) 2015-03-26 2019-01-08 Delphi Technologies Ip Limited Oil lubricated common rail diesel pump
WO2016150650A1 (en) * 2015-03-26 2016-09-29 Delphi International Operations Luxembourg S.À R.L. An oil lubricated common rail diesel pump
CN106150806A (zh) * 2015-03-26 2016-11-23 罗伯特·博世有限公司 柱塞泵和高压燃油泵
CN106150806B (zh) * 2015-03-26 2020-08-18 罗伯特·博世有限公司 柱塞泵和高压燃油泵
WO2017029295A1 (en) * 2015-08-18 2017-02-23 Delphi International Operations Luxembourg S.À R.L. High pressure diesel fuel pumps
GB2543500B (en) * 2015-10-19 2019-12-11 Delphi Tech Ip Ltd High pressure fuel pump
GB2543500A (en) * 2015-10-19 2017-04-26 Delphi Int Operations Luxembourg Sarl High pressure fuel pump
WO2017194622A1 (en) * 2016-05-11 2017-11-16 Delphi International Operations Luxembourg S.À R.L. Seal
WO2017211480A1 (en) * 2016-06-10 2017-12-14 Delphi International Operations Luxembourg S.À R.L. Guiding arrangement of high pressure pump
GB2551203A (en) * 2016-06-10 2017-12-13 Delphi Int Operations Luxembourg Sarl Guiding arangement of high pressure pump
GB2551203B (en) * 2016-06-10 2020-03-18 Delphi Tech Ip Ltd Guiding arangement of high pressure pump
WO2017216321A1 (fr) * 2016-06-16 2017-12-21 Poclain Hydraulics Industrie Piston à galet pour machine hydraulique, venu de matière avec élément de centrage formé pour limiter les frottements avec un galet
FR3052819A1 (fr) * 2016-06-16 2017-12-22 Poclain Hydraulics Ind Piston a galet pour machine hydraulique, venu de matiere avec element de centrage forme pour limiter les frottements avec un galet
RU2746697C2 (ru) * 2016-06-16 2021-04-19 Поклэн Гидроликс Индастри Поршень с роликом для гидравлической машины, выполненный за одно целое с центрирующим элементом, ограничивающим трение о ролик
EP3318746A1 (de) * 2016-11-02 2018-05-09 Delphi International Operations Luxembourg S.à r.l. Kraftstoffpumpe und schuhführung
GB2568674A (en) * 2017-11-20 2019-05-29 Delphi Tech Ip Ltd High pressure fuel pump
GB2568674B (en) * 2017-11-20 2020-03-25 Delphi Tech Ip Ltd High pressure fuel pump

Also Published As

Publication number Publication date
KR20130120401A (ko) 2013-11-04
EP2657505B1 (de) 2015-07-22
HUE025332T2 (en) 2016-02-29
ES2545122T3 (es) 2015-09-08
CN103423045A (zh) 2013-12-04
JP2013231430A (ja) 2013-11-14
KR101568140B1 (ko) 2015-11-11

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