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EP2007986A1 - Pompe à piston radial pour l'alimentation haute pression en carburant d'un moteur à combustion interne - Google Patents

Pompe à piston radial pour l'alimentation haute pression en carburant d'un moteur à combustion interne

Info

Publication number
EP2007986A1
EP2007986A1 EP07727914A EP07727914A EP2007986A1 EP 2007986 A1 EP2007986 A1 EP 2007986A1 EP 07727914 A EP07727914 A EP 07727914A EP 07727914 A EP07727914 A EP 07727914A EP 2007986 A1 EP2007986 A1 EP 2007986A1
Authority
EP
European Patent Office
Prior art keywords
valve
radial piston
piston pump
suction valve
pressure
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.)
Withdrawn
Application number
EP07727914A
Other languages
German (de)
English (en)
Inventor
Ngoc-Tam Vu
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.)
Continental Automotive GmbH
Original Assignee
Siemens AG
Continental Automotive 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 Siemens AG, Continental Automotive GmbH filed Critical Siemens AG
Publication of EP2007986A1 publication Critical patent/EP2007986A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F04B1/0452—Distribution members, e.g. valves
    • 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
    • F02M59/04—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—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 special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve 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
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1032—Spring-actuated disc valves

Definitions

  • the invention relates to a radial piston pump for high-pressure fuel supply in an internal combustion engine, with a displacer housing with compressor chamber, with in a cylinder chamber of a cylinder reciprocating piston, with a connected to a fuel supply line
  • Suction valve and having a connected to a fuel discharge line pressure valve, wherein the suction valve and the pressure ⁇ valve each have a closing head, a valve seat, a cylinder portion and springs.
  • the present invention seeks to provide a radial piston pump of the type mentioned, which is simpler in design and faster and cheaper to assemble.
  • suction valve and the pressure valve are identical assemblies, wherein the pressure valve is installed in the direction opposite to the suction valve flow direction in the radial piston pump.
  • the suction valve and the pressure valve are arranged axially parallel in the displacer ⁇ and connected to each other via an intermediate line.
  • the possibility that the fuel supply line to the suction valve and the fuel outflow line to the pressure valve at a distance are arranged parallel to each other in the displacer.
  • the intermediate line can be arranged between the compressor chamber and a feed line in the cylinder.
  • the closing head of the suction valve and of the pressure valve can each be designed in the form of a conical section and guided centrally in the valve seat.
  • the suction valve is strö ⁇ tion conveniently designed to optimize the dead space volume.
  • valve seat of the suction valve and the pressure valve are arranged in the end region of the displacer housing facing the cylinder.
  • seals may be in the end region and in the end region of the respective valve seats of the suction valve and the pressure valve are incorporated, so that no necessary elastomer seals in construction to the invention ⁇ OF INVENTION lent, since known metallic seals can be ⁇ sets.
  • the only figure 1 shows a section through a Radialkol ⁇ piston pump.
  • the radial piston pump shown in the drawing is used for high pressure fuel supply in an internal combustion engine, in particular in a common rail injection system.
  • This radial piston pump 1 has a displacer 3 and a da ⁇ with associated cylinder 30.
  • a reciprocating piston 6 In a cylinder chamber 5 of the cylinder 30 is a reciprocating piston 6, which can be driven for example by a known per se, not shown, eccentrically shaped drive shaft to produce the aforementioned reciprocating motion.
  • a suction valve 10 In the displacer housing 3 is a suction valve 10, wel ⁇ Ches is connected to a fuel supply line 8, and a pressure valve 12, which communicates with a fuel discharge line 14, preferably to a common rail injection system.
  • the suction valve 10 and the pressure valve 12 are identical assemblies, wherein - as is apparent from the drawing - the pressure valve 12 is installed in the suction valve 10 opposite set flow direction in the radial piston pump, in the present case in the displacer. 3
  • the suction valve 10 and the pressure valve 12 each have a closing head 16 or 16 ', a valve seat 18, 18', a cylinder portion 20, 20 'and springs 22, 22' on.
  • these individual elements of the assemblies are identical, in each case the closing head 16, 16 'in ⁇ the valves 10 and 12 in the form of a conical section is formed.
  • This closing head 16, 16 'of the suction valve 10 and the pressure valve 12 are guided centrally in the respective valve seat 18, 18'.
  • valve seats 18, 18 'of the suction valve 10 and of the pressure valve 12 are arranged in recesses in the cylinder 30 facing end region S of the displacer housing 3. It can be seen that the closing head 16 of the suction valve 10 extends ko ⁇ axially to the axis HH of the piston 6.
  • valve seats 18, 18 'can also serve as a seal between the lines 14 and 25 or 8 and 25 for accurate production.
  • valve seats 18, 18 'of the suction valve 10 and of the pressure valve 12 are each end side by seals 31, 31' and 32, 32 'in the end region S and in the end region of the respective valve seats 18, 18' of the suction valve 10 and the pressure valve 12 are sealed, where ⁇ at between the displacer housing 3 and the cylinder 30, a gap is present, which undergoes a seal by the aforementioned seals.
  • a pressure accumulator 40 can be arranged in at least one of the three displacers 3 of each pump on the high pressure side, which optionally serve as a buffer and / or as a high pressure accumulator in the sense of a common rail in connection with the other pressure lines can.
  • the construction according to the invention is designed to generally below the cylinder 30 provided the unspecified Darge ⁇ pump housing is arranged, which usually three of the cylinder assemblies shown in a star-shaped arrangement (ie 120 degrees) comprises.
  • the high-pressure fuel is summarized after leaving the pressure valve 12 of each cylinder assembly and passed through the aforementioned pump housing. So far, this had to be designed for high pressure. Now there is the possibility that this merger no longer takes place in the pump housing but, for example, by an outer ring line which no longer runs through the pump housing. Therefore, this pump housing may be made weaker, such as aluminum, and thus made lighter and cheaper.
  • the operation of the radial piston pump according to the invention is such that fuel flows through the fuel supply line 8 via the open suction valve 10 into the compressor chamber 4, there undergoes a compression by the piston 6, via the intermediate line 25 and the supply line 28 via the against the effect of Spring 22 'open pressure valve 12 to the fuel discharge line 14 and is passed from here to a common rail injection system, not shown.

Landscapes

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

Abstract

L'invention concerne une pompe à piston radial (1) destinée à l'alimentation haute pression en carburant d'un moteur à combustion interne, comprenant un carter de déplaceur (3) doté d'une chambre de compression (4), d'un piston (6) animé d'un mouvement de va-et-vient dans une chambre (5) d'un cylindre (30), d'une soupape d'aspiration (10) raccordée à une conduite d'alimentation de carburant (8), et un clapet de refoulement (12) raccordé à une conduite d'évacuation de carburant (14), la soupape d'aspiration (10) et le clapet de refoulement (12) présentent respectivement une tête de fermeture (16, 16'), un siège de soupape (18, 18'), une section cylindre (20, 20') et des ressorts (22, 22'). La soupape d'aspiration (10) et le clapet de refoulement (12) sont des ensembles identiques, le clapet de refoulement (12) étant monté dans la pompe à piston radial (1) dans la direction d'écoulement opposée à la soupape d'aspiration (10).
EP07727914A 2006-04-11 2007-04-10 Pompe à piston radial pour l'alimentation haute pression en carburant d'un moteur à combustion interne Withdrawn EP2007986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006017036A DE102006017036A1 (de) 2006-04-11 2006-04-11 Radialkolbenpumpe zur Kraftstoff-Hochdruckversorgung bei einer Brennkraftmaschine
PCT/EP2007/053446 WO2007116048A1 (fr) 2006-04-11 2007-04-10 Pompe à piston radial pour l'alimentation haute pression en carburant d'un moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP2007986A1 true EP2007986A1 (fr) 2008-12-31

Family

ID=38255132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07727914A Withdrawn EP2007986A1 (fr) 2006-04-11 2007-04-10 Pompe à piston radial pour l'alimentation haute pression en carburant d'un moteur à combustion interne

Country Status (5)

Country Link
US (1) US7748966B2 (fr)
EP (1) EP2007986A1 (fr)
JP (1) JP4976484B2 (fr)
DE (1) DE102006017036A1 (fr)
WO (1) WO2007116048A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101226051B1 (ko) * 2008-07-15 2013-01-24 델피 테크놀로지스 홀딩 에스.에이.알.엘 연료 펌프용 펌프 헤드, 및 연료 펌프

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009032305A1 (de) * 2009-07-09 2011-01-13 Man Diesel & Turbo Se Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE102011003107A1 (de) * 2011-01-25 2012-07-26 Continental Automotive Gmbh Hochdruckpumpe
ITMI20130811A1 (it) * 2013-05-17 2014-11-18 Bosch Gmbh Robert Unita' di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna
AT514966B1 (de) * 2013-10-15 2015-09-15 Bosch Gmbh Robert Ein Hochdruckmedium führendes Bauelement
KR101560694B1 (ko) * 2013-12-26 2015-10-15 동부대우전자 주식회사 제습기
KR102435202B1 (ko) * 2015-09-30 2022-08-24 삼성전자주식회사 제습기
DE202016103412U1 (de) 2016-06-28 2016-07-27 Bentec Gmbh Drilling & Oilfield Systems Wasserteil einer Kolbenpumpe, insbesondere einer als Spülpumpe fungierenden Kolbenpumpe
DE102016220641A1 (de) * 2016-10-20 2018-04-26 Continental Automotive Gmbh Kraftstoffpumpe
GB2570648B (en) * 2018-01-26 2020-10-14 Delphi Tech Ip Ltd Fuel Pump
CN114198286B (zh) * 2021-12-08 2024-10-25 郑州轻工业大学 一种往复式压缩机
US20240018926A1 (en) * 2022-07-18 2024-01-18 Girish Mandakolathur Krishnamurthi A t and inverse t-shaped valve for an inlet port of a fuel injection pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412931A (en) * 1966-10-18 1968-11-26 Palmer Pumps Ltd Valved cylinder heads
DE2403588A1 (de) * 1974-01-25 1975-07-31 American Aero Ind Fluidfuehrender teil einer hochdruckpumpe
DE10136925C1 (de) * 2001-07-30 2002-12-12 Orange Gmbh Kraftstoff-Einspritzeinrichtung für Brennkraftmaschinen

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556145A (en) * 1969-07-16 1971-01-19 Rockwell Mfg Co Fluid motor supply and control valve
US3619087A (en) * 1969-12-17 1971-11-09 Archie W Beeman Free piston-type pump
US3803686A (en) * 1969-12-24 1974-04-16 C Phillips Method of manufacturing fuel pumps
US5358383A (en) * 1992-04-27 1994-10-25 Elasis Sistema Ricerca Fiat Nel Mezzogiorno Radial-piston pump for internal combustion engine fuel
US5839468A (en) * 1995-10-06 1998-11-24 Gene Bias Pump valve
WO1999002857A2 (fr) * 1997-07-11 1999-01-21 Robert Bosch Gmbh Pompe a piston radial pour alimentation haute pression en carburant
DE19801398A1 (de) * 1998-01-16 1999-07-22 Bosch Gmbh Robert Radialkolbenpumpe zur Kraftstoffhochdruckversorgung
DE19848040A1 (de) * 1998-10-17 2000-04-20 Bosch Gmbh Robert Kolbenpumpe zur Kraftstoffhochdruckversorgung
JP4088738B2 (ja) * 1998-12-25 2008-05-21 株式会社デンソー 燃料噴射ポンプ
DE19860672A1 (de) 1998-12-29 2000-07-13 Bosch Gmbh Robert Kolbenpumpe zur Kraftstoffhochdruckerzeugung
US20030039558A1 (en) * 1999-06-25 2003-02-27 Kolb Richard P. Fuel pump
IT1310755B1 (it) * 1999-11-30 2002-02-22 Elasis Sistema Ricerca Fiat Pompa idraulica ad alta pressione, in particolare pompa a pistoniradiali per il carburante di un motore a combustione interna.
DE19959006C1 (de) * 1999-12-08 2000-12-21 Bosch Gmbh Robert Radialkolbenpumpe
DE10228552B9 (de) * 2002-06-26 2007-08-23 Siemens Ag Radialkolbenpumpeneinheit
DE10243148A1 (de) * 2002-09-17 2004-03-25 Siemens Ag Radialkolbenpumpeneinheit
DE10310123A1 (de) 2003-03-07 2004-09-23 Siemens Ag Radialkolbenpumpe
DE102004028073B3 (de) 2004-06-09 2005-08-04 Siemens Ag Rückschlagventil
US7484942B2 (en) * 2004-08-26 2009-02-03 Nathalie Proust Priming pump for a circuit subjecting said pump to an outlet pressure greater than an inlet pressure
DE102004041764A1 (de) * 2004-08-28 2006-03-02 Robert Bosch Gmbh Hochdruckpumpe für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412931A (en) * 1966-10-18 1968-11-26 Palmer Pumps Ltd Valved cylinder heads
DE2403588A1 (de) * 1974-01-25 1975-07-31 American Aero Ind Fluidfuehrender teil einer hochdruckpumpe
DE10136925C1 (de) * 2001-07-30 2002-12-12 Orange Gmbh Kraftstoff-Einspritzeinrichtung für Brennkraftmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007116048A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101226051B1 (ko) * 2008-07-15 2013-01-24 델피 테크놀로지스 홀딩 에스.에이.알.엘 연료 펌프용 펌프 헤드, 및 연료 펌프

Also Published As

Publication number Publication date
US20090272364A1 (en) 2009-11-05
JP4976484B2 (ja) 2012-07-18
US7748966B2 (en) 2010-07-06
JP2009533593A (ja) 2009-09-17
DE102006017036A1 (de) 2007-10-18
WO2007116048A1 (fr) 2007-10-18

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