EP2007986A1 - Radialkolbenpumpe zur kraftstoff-hochdruckversorgung bei einer brennkraftmaschine - Google Patents
Radialkolbenpumpe zur kraftstoff-hochdruckversorgung bei einer brennkraftmaschineInfo
- 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- Withdrawn
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
Description
Claims
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 (de) | 2006-04-11 | 2007-04-10 | Radialkolbenpumpe zur kraftstoff-hochdruckversorgung bei einer brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2007986A1 true EP2007986A1 (de) | 2008-12-31 |
Family
ID=38255132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07727914A Withdrawn EP2007986A1 (de) | 2006-04-11 | 2007-04-10 | Radialkolbenpumpe zur kraftstoff-hochdruckversorgung bei einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7748966B2 (de) |
EP (1) | EP2007986A1 (de) |
JP (1) | JP4976484B2 (de) |
DE (1) | DE102006017036A1 (de) |
WO (1) | WO2007116048A1 (de) |
Cited By (1)
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)
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)
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)
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 (de) * | 1997-07-11 | 1999-01-21 | Robert Bosch Gmbh | Radialkolbenpumpe zur kraftstoffhochdruckversorgung |
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 |
-
2006
- 2006-04-11 DE DE102006017036A patent/DE102006017036A1/de not_active Withdrawn
-
2007
- 2007-04-10 EP EP07727914A patent/EP2007986A1/de not_active Withdrawn
- 2007-04-10 US US12/295,774 patent/US7748966B2/en not_active Expired - Fee Related
- 2007-04-10 JP JP2009504714A patent/JP4976484B2/ja not_active Expired - Fee Related
- 2007-04-10 WO PCT/EP2007/053446 patent/WO2007116048A1/de active Application Filing
Patent Citations (3)
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)
Title |
---|
See also references of WO2007116048A1 * |
Cited By (1)
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 (de) | 2007-10-18 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20081111 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTINENTAL AUTOMOTIVE GMBH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTINENTAL AUTOMOTIVE GMBH |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB IT |
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17Q | First examination report despatched |
Effective date: 20090805 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20160924 |