WO2017198360A1 - Pompe à carburant haute pression - Google Patents

Pompe à carburant haute pression Download PDF

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Publication number
WO2017198360A1
WO2017198360A1 PCT/EP2017/056439 EP2017056439W WO2017198360A1 WO 2017198360 A1 WO2017198360 A1 WO 2017198360A1 EP 2017056439 W EP2017056439 W EP 2017056439W WO 2017198360 A1 WO2017198360 A1 WO 2017198360A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal carrier
collar
fuel pump
pressure fuel
fastening element
Prior art date
Application number
PCT/EP2017/056439
Other languages
German (de)
English (en)
Inventor
Thomas Krumbholz
Soeren Stritzel
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 CN201780030951.5A priority Critical patent/CN109154266B/zh
Priority to KR1020187033228A priority patent/KR102288011B1/ko
Publication of WO2017198360A1 publication Critical patent/WO2017198360A1/fr

Links

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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/445—Selection of particular materials
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
    • 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
    • F04B1/0448—Sealing means, e.g. for shafts or housings
    • 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
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/246—Bypassing by keeping open the outlet valve
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/143—Sealing provided on the piston
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams

Definitions

  • the invention relates to a high-pressure fuel pump according to the preamble of claim 1.
  • Such high-pressure fuel pumps usually have at least one piston, which can be moved axially by means of a drive formed by a cam or an eccentric disc.
  • a radially outwardly disposed on the piston seal which consists of a usually designed as a deep-drawn element seal carrier and a
  • Retained fastener separates a fuel side from an oil side, whereby a mixing of fuel and oil is minimized.
  • the seal statically seals against the seal carrier and dynamically against the piston.
  • the object of the invention is to provide a high-pressure fuel pump, which has more compact dimensions and reliably seals the fuel side against the oil side.
  • This object is achieved by a high-pressure fuel pump according to claim 1.
  • height of the high-pressure fuel pump is saved, while the reliability of the gasket of the fuel side is ensured against the oil side.
  • the seal carrier is pot-shaped and surrounds the fastener in the circumferential direction, which is a reliable
  • the fastening element is pot-shaped.
  • the seal is reliably protected from the action of the piston, which strikes against the fastening element during operation of the high-pressure pump. This prevents the seal from being damaged, and consequently increases the operational safety and life of the high pressure pump.
  • the fastening element has a connection with the seal carrier. It is ensured by the connection that the fastener by forces in a
  • the fastener may or may not have a collar forming a fuel-side end of the fastener.
  • a collar is meant a radially outwardly extending portion of material, forming the fuel-side end of the fastener, i. forms the part of the fastener that is furthest towards the
  • connection is in any case formed in part by a collar of the fastening element, wherein the collar of the fastening element is positively connected to a stop section of the fastening element
  • the above collar can also forces by impact, which be exerted by the piston on the fastener, in
  • Fixing element in the radial direction at most 3 mm, preferably at most 2 mm, in particular 1 mm, in particular 0.5 mm. This allows the collar without or by means of small formations in the
  • Sealing carrier can be sunk. It is also advantageous if the extension of the collar of the fastening element in the radial direction at most 2 times, preferably 1, 5 times, in particular 1 times the
  • Fastener can easily customize a suitably sized collar.
  • Seal carrier a chamfer on the seal carrier.
  • Such a chamfer can absorb the forces exerted by the collar on the seal carrier in an advantageous manner, without, for example, causing material removal, which could impair the functioning of the high-pressure pump.
  • the chamfer on the seal carrier preferably extends at an angle between 35 and 55, preferably between 40 and 50, in particular at an angle of 45 ° relative to the piston longitudinal axis.
  • Such a chamfer allows a recording of high forces, which are exerted by the collar of the fastener on the seal carrier, and it provides sufficient space for any existing on the fastener collar.
  • a particularly high resistance to displacement of the fastener and thus a particularly high reliability is guaranteed.
  • Fastening element on an underside a collar-side chamfer which extends at an angle between 35 and 55, preferably between 40 and 50, in particular at an angle of 45 ° relative to the piston longitudinal axis.
  • a collar-side chamfer running in this way enables high forces to be absorbed by the collar of the fastening element on the seal carrier be exercised, and it creates sufficient space, since the collar can be quasi to invest in the seal carrier.
  • both the seal carrier and the collar of the fastening element have the chamfers just described.
  • connection of the fastening element to the seal carrier is a
  • Figure 1 is a simplified schematic representation of a fuel system for an internal combustion engine
  • FIG. 2 shows a section of a subregion of a device according to the invention
  • FIG. 3 shows a section from FIG. 2
  • Figure 4 is a representation corresponding to Figure 2 of an alternative
  • Figure 5 is a representation corresponding to Figure 2 of another alternative embodiment of the high-pressure fuel pump according to the invention.
  • Figure 6 is a representation corresponding to Figure 2 of another alternative embodiment of the high-pressure fuel pump according to the invention.
  • FIG. 1 shows a fuel system 10 for a further not shown
  • volume control valve 24 a delivery chamber 26 of a high-pressure fuel pump 28 is supplied.
  • the quantity control valve 24 may be a forcibly disclosed intake valve of the high-pressure fuel pump 28.
  • the high-pressure fuel pump 28 is designed as a piston pump, wherein a piston 30 can be moved up and down by means of a drive 32 designed as a cam 32 along a piston longitudinal axis 33, which is schematically represented by the arrow with the reference numeral 34. Hydraulically between the delivery chamber 26 and an outlet 36 of the high-pressure fuel pump 28 is formed in the figure 1 as a spring-loaded check valve
  • Exhaust valve 40 is arranged, which can open to the outlet 36 out.
  • the outlet 36 is connected to a high pressure line 44 and via this to a
  • High-pressure accumulator 46 (common rail) connected. Furthermore, hydraulically between the outlet 36 and the delivery chamber 26 is also a
  • spring-loaded check valve drawn pressure relief valve 42 is arranged, which can open to the pumping chamber 26 out.
  • the pre-demand pump 16 delivers fuel from the fuel tank 12 into the low pressure line 18.
  • the quantity control valve 24 may be closed and opened in response to a respective demand for fuel.
  • the electromagnetic actuator 22 is controlled by a control and / or regulating device 48.
  • Figure 2 shows a lower portion 49 of an embodiment of the
  • the piston 30 extends from a fuel side 50 to an oil side 52.
  • the fuel side 50 is sealed by a sealing device 54 against the oil side 52.
  • Sealing means 54 encloses the piston 30 in a circumferential direction U.
  • a radial direction 55 is represented by a corresponding arrow.
  • the sealing device 54 includes a seal 56, a seal carrier 58 and a fastening element 60.
  • the seal carrier 58 is in the operating position shown at a lower in Figure 2 oil-side end of the seal 56 at this.
  • the fastening element 60 is slightly spaced from a fuel-side end of the seal 56 in FIG. 2 with a U-shaped region 61 in the operating position shown.
  • the seal carrier 58 extends on the fuel side in the direction of
  • the fastener 60 is recessed in the seal carrier 58.
  • the seal carrier 58 has a substantially in the direction of
  • Piston longitudinal axis 33 extending peripheral wall W on. Oil side to the
  • Peripheral wall W then and orthogonal to the piston longitudinal axis 33 extends radially inwardly a bottom B with a central opening O, through which the piston 30 extends.
  • the peripheral wall W goes into a projecting from the piston, so radially outward and orthogonal to the piston longitudinal axis 33 extending upper portion A over. From the radially outer edge of the upper section A extends in the direction of the oil side 52 and along the direction of the piston longitudinal axis a connecting region V.
  • the seal carrier 58 is thus partially pot-shaped with the opening O in the lower part of a pot-like portion TA.
  • the fastener 60 is also pot-shaped. A
  • Peripheral wall BW of the fastening element 60 extends in the direction of the piston longitudinal axis 33 and on the oil side, ie at its lower end in the figure, merges into the U-shaped region 61 already mentioned above.
  • the U-shaped portion 61 forms a bottom BB of the fastener 60 with a total orthogonal extent to the piston longitudinal axis 33. He has a central Opening BO, through which the piston 30 extends therethrough.
  • the fastening element 60 is surrounded by the cup-shaped seal carrier 58 in the radial direction 55. In this case, the peripheral wall W of the seal carrier 58 is frictionally connected to the peripheral wall BW of the
  • the fastening element 60 has an outwardly extending in the radial direction 55, ie away from the piston and in this case very short collar
  • Fastener 60 is formed by the collar 64.
  • the collar 64 represents that part of the fastener 60 which extends furthest to the fuel side 50.
  • the collar 64 of the fastening element 60 supports the fastening element 60 in a form-fitting manner on a stop section 66 of the seal carrier 58.
  • Stop section 66 includes a chamfer 68.
  • the chamfer 68 extends at an angle 82 of 45 ° relative to the piston longitudinal axis 33.
  • a press fit 70 In the region of a press fit 70 are the fastener 60 and the
  • the fastening element 60 has a connection to the seal carrier 58, which comprises a frictional component by the interference fit 70 and a positive-fit component by the support of the collar 64 on the stopper section 66.
  • Figure 3 shows an area around the collar 64 and the stopper portion 66 in an enlarged view.
  • a (short) extension of the collar 64 of the fastener 60 in the radial direction 55 in Figure 3 carries the
  • the chamfer 68 on the seal carrier 58 extends at an angle 82 relative to the piston longitudinal axis 33.
  • the angle 82 of the chamfer 68 between 35 ° and 55 °, preferably between 40 ° and 50 °, in particular 45 °, as already above mentioned.
  • the extension 74 of the collar 64 is in practice at most 3 mm, preferably at most 2 mm, in particular 1 mm, in particular 0.5 mm or at most twice, preferably 1, 5 times, in particular 1 times, the material thickness 78 of the collar 64.
  • FIG. 4 shows an alternative embodiment of the invention
  • High-pressure fuel pump 28 which differs from that shown in Figures 2 and 3
  • Embodiment distinguished by the connection between the seal carrier 58 and the fastener 60.
  • the fastener 60 has no collar 64 in this embodiment.
  • the fuel-side end 65 of the fastener 60 is replaced by a
  • connection between the seal carrier 58 and the fastening element 60 is an exclusively non-positive connection.
  • a fit of the press fit 70 is made stronger than in the one shown in FIG.
  • FIG. 5 shows a further alternative embodiment of the high-pressure fuel pump 28 according to the invention, which differs from the embodiment shown in FIGS. 2 and 3 in that the seal carrier 58 is the chamfer
  • the seal carrier 58 extends fuel side seen in the direction of the piston longitudinal axis 33 not so far as the fastener 60 as a whole.
  • FIG. 6 shows a further alternative embodiment of the high-pressure fuel pump 28 according to the invention, which differs from that shown in FIG.
  • Embodiment differs in that the collar 64 at its
  • Bottom 83 has a chamfer 84.
  • the chamfer 84 extends at an angle 86 of 45 ° relative to the piston longitudinal axis 33.
  • the seal carrier 58 extends in this embodiment, while the fuel side in the direction of the piston longitudinal axis 33 seen as the oil side 52 directed towards
  • the seal carrier 58 extends seen fuel side in the direction of the piston longitudinal axis 33 not so far as the fastener 60 total.
  • the collar 64 also forms the fuel-side end 65 of the fastening element 60 in this embodiment.
  • Fastener 60 forms with its U-shaped portion 61 also has an axial stop of the seal 56 in operation of the fuel high pressure pump 28 and a captive for the piston 30 during transport or during storage of the high-pressure fuel pump 28th
  • connection between seal carrier 58 and fastener 60 prevents the fastener 60 in the direction of the piston longitudinal axis
  • Embodiment according to Figures 2 and 3 and in the embodiment of Figure 4 executed strong enough to such slippage in each operating condition of the high-pressure fuel pump 28, i. for all occurring during operation of the pump forces acting on the fastener 60 exclude.
  • the forces acting on the fastening element 60 in the operating state of the high-pressure fuel pump 28 are predominantly exerted on the fastening element 60 by the piston 30 via the seal 56.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne une pompe à carburant haute pression (28) comprenant un piston (30) qui présente un axe longitudinale (33), un dispositif d'étanchéité (54) qui entoure le piston (30) radialement et qui assure l'étanchéité d'un côté carburant (50) vis-à-vis d'un côté huile (52). Le dispositif d'étanchéité (54) comprend une garniture (60), un porte-garniture (58) qui vient contre l'extrémité côté huile de la garniture (56), et un élément de fixation (60) qui vient contre l'extrémité côté carburant de la garniture (56), le porte-garniture (58) s'étendant côté carburant, lorsqu'on le considère dans la direction de l'axe longitudinal (33) du piston, au moins aussi loin que l'élément de fixation (60), ou le porte-garniture (58) s'étendant côté carburant, lorsqu'on le considère dans la direction de l'axe longitudinal (33) du piston, plus loin qu'un côté inférieur (83), orienté vers le côté huile (52), d'un rebord (64) qui se trouve éventuellement côté élément de fixation et forme une extrémité côté carburant (65) de l'élément de fixation (60).
PCT/EP2017/056439 2016-05-19 2017-03-17 Pompe à carburant haute pression WO2017198360A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780030951.5A CN109154266B (zh) 2016-05-19 2017-03-17 燃料高压泵
KR1020187033228A KR102288011B1 (ko) 2016-05-19 2017-03-17 고압 연료 펌프

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016208581.6A DE102016208581A1 (de) 2016-05-19 2016-05-19 Kraftstoffhochdruckpumpe
DE102016208581.6 2016-05-19

Publications (1)

Publication Number Publication Date
WO2017198360A1 true WO2017198360A1 (fr) 2017-11-23

Family

ID=58347404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/056439 WO2017198360A1 (fr) 2016-05-19 2017-03-17 Pompe à carburant haute pression

Country Status (4)

Country Link
KR (1) KR102288011B1 (fr)
CN (1) CN109154266B (fr)
DE (1) DE102016208581A1 (fr)
WO (1) WO2017198360A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018119479A (ja) * 2017-01-26 2018-08-02 日立オートモティブシステムズ株式会社 高圧燃料ポンプ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020215512A1 (de) * 2020-12-09 2022-06-09 Robert Bosch Gesellschaft mit beschränkter Haftung Kraftstoff-Hochdruckpumpe für eine Brennkraftmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120195778A1 (en) * 2011-01-27 2012-08-02 Nippon Soken, Inc. High pressure pump
JP2012202375A (ja) * 2011-03-28 2012-10-22 Denso Corp 高圧ポンプ
DE102011082740A1 (de) * 2011-09-15 2013-03-21 Robert Bosch Gmbh Kolbenpumpe mit einem Gehäuse und mindestens einem in einer Kolbenführung des Gehäuses angeordneten axial bewegbaren Kolben
DE102013206930A1 (de) * 2013-04-17 2014-10-23 Robert Bosch Gmbh Kolbenpumpe, insbesondere Kraftstoff-Hochdruckpumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005061886A1 (de) * 2005-12-23 2007-07-05 Robert Bosch Gmbh Hochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine
KR101349641B1 (ko) * 2011-12-29 2014-01-10 (주)모토닉 직접분사식 가솔린 엔진용 고압연료펌프
DE102013212047A1 (de) * 2013-06-25 2015-01-08 Robert Bosch Gmbh Pumpvorrichtung, insbesondere Kraftstoffhochdruckpumpvorrichtung für eine Kraftstoffeinspritzeinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120195778A1 (en) * 2011-01-27 2012-08-02 Nippon Soken, Inc. High pressure pump
JP2012202375A (ja) * 2011-03-28 2012-10-22 Denso Corp 高圧ポンプ
DE102011082740A1 (de) * 2011-09-15 2013-03-21 Robert Bosch Gmbh Kolbenpumpe mit einem Gehäuse und mindestens einem in einer Kolbenführung des Gehäuses angeordneten axial bewegbaren Kolben
DE102013206930A1 (de) * 2013-04-17 2014-10-23 Robert Bosch Gmbh Kolbenpumpe, insbesondere Kraftstoff-Hochdruckpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018119479A (ja) * 2017-01-26 2018-08-02 日立オートモティブシステムズ株式会社 高圧燃料ポンプ

Also Published As

Publication number Publication date
KR20190008240A (ko) 2019-01-23
CN109154266A (zh) 2019-01-04
KR102288011B1 (ko) 2021-08-12
DE102016208581A1 (de) 2017-11-23
CN109154266B (zh) 2021-12-24

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