EP2312149A1 - pompe à pistons, en particulier pompe d'essence à haute pression - Google Patents
pompe à pistons, en particulier pompe d'essence à haute pression Download PDFInfo
- Publication number
- EP2312149A1 EP2312149A1 EP11153765A EP11153765A EP2312149A1 EP 2312149 A1 EP2312149 A1 EP 2312149A1 EP 11153765 A EP11153765 A EP 11153765A EP 11153765 A EP11153765 A EP 11153765A EP 2312149 A1 EP2312149 A1 EP 2312149A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston pump
- housing
- pressure fuel
- pump
- side surfaces
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 26
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- 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
- 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
-
- 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
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/24—Fuel-injection apparatus with sensors
Definitions
- the invention relates to a high-pressure fuel piston pump with a housing and with at least one laterally attached to the housing component.
- a piston pump of the type mentioned is known from the market. It is used, for example, in fuel systems with direct fuel injection. In such systems, the fuel is compressed by a high pressure pump to a very high pressure and delivered to a fuel rail.
- the high pressure piston pump includes a cylinder in which a piston is reciprocably received. During this movement of the piston, fuel taken up in a working space is compressed. The fuel enters the working space via an inlet port, and from the high pressure piston pump to the fuel manifold via an outlet port.
- the two nozzles are screwed into lateral holes on the cylinder, which has a round outer cross-section. The lateral surface of the The cylinder is turned flat in the area of the holes.
- the housing in the known high-pressure piston pump is made of steel. This is necessary in order to use the high-pressure piston pump with such fuels, which are ethanolhaltig. Starting from such a high-pressure piston pump, it is the object of the present invention to reduce their production costs.
- such components which have a fluid connection
- those components which have an electrical connection at least approximately opposite each other. This facilitates the assembly and the sensible arrangement of the fluid or electrical lines.
- the side surfaces are at least approximately the same size. This increases the flexibility of the housing since basically any component can be placed on each side surface.
- the housing has the shape of a symmetrical polygonal cross-section, in particular of a hexagon, in cross-section.
- the opposing side surfaces are arranged parallel to each other. This facilitates the positioning of the housing during processing.
- the support of forces that must be applied during processing or during the attachment of components on a side surface on this is simplified in this embodiment of the piston pump.
- a hexagon offers with six side surfaces a sufficient number of possible connection points for components, at the same time still low production costs.
- the invention has an effect if the housing is made of stainless steel.
- the processing of stainless steel is relatively expensive and time-consuming and consuming. Since complex machining steps can be dispensed with in the case of the piston pump according to the invention, the costs are significantly reduced, especially when using stainless steel.
- the housing is made of a round profile, from which the straight side surfaces are worked out.
- Round profiles are in the Different diameters and material qualities available, which facilitates the production of a piston pump, which is tailored to the specific requirements of the particular application.
- At least one component arranged on a side surface is a pressure sensor.
- the straight side surfaces of the piston pump according to the invention are particularly well suited for mounting a commercially available pressure sensor. Already this reduces the costs considerably.
- an internal combustion engine carries the reference numeral 10. It comprises a fuel system 12 to which a fuel tank 14 belongs.
- a prefeed pump 16 conveys to a high-pressure piston pump 18.
- this has an inlet pipe 20.
- the high pressure piston pump 18 is connected to a fuel rail 24 in which the fuel is stored under high pressure.
- a plurality of fuel injectors 26 are connected, which inject the fuel directly into them associated combustion chambers 28.
- the high pressure piston pump 18 is placed directly on in FIG. 1 not shown manner driven by a camshaft of the internal combustion engine 10.
- an electromagnetic actuator 30 is provided in the high-pressure piston pump 18, which operates on an in FIG. 1 invisible inlet valve of the high-pressure piston pump 18 acts.
- the entirety of electromagnetic actuator 30 and Inlet valve of the high-pressure pump-piston pump 18 is also referred to as a quantity control valve.
- the high-pressure piston pump 18 comprises an elongated housing 34 which is made of stainless steel and in which a cylinder liner 36 and a reciprocating piston 38 are received in this.
- the housing 34 is made of a commercial drawn hexagonal profile 39 having a total of six substantially straight side surfaces 40a to 40f. Alternatively, the straight side surfaces could also be made by turning.
- the cylinder liner 36 and the piston 38 are arranged in a blind bore 42 which extends in the central axis of the hexagonal profile 39.
- the blind bore 42 and the piston 38 define a working space 44th
- a stepped bore 46 is introduced, which can communicate via an inlet valve, not shown, with the working space 44 and in which the inlet port 20 is inserted. It is welded to the housing 34 in FIG. 48.
- a stepped bore 50 is provided, in which the outlet port 22 is inserted. He is welded to the housing 34 with a weld 52.
- an outlet valve 54 is pressed.
- the stepped bore 50 may also communicate with the working space 44.
- a stepped bore 56 is again introduced, in which the electromagnetic actuator 30 and (not visible), the inlet valve are used.
- FIG. 4 An alternative embodiment of a high pressure piston pump 18 is shown in FIG. 4 shown.
- carry such elements and areas which equivalent functions to elements and areas of related to the Figures 2 and 3 explained embodiment, have the same reference numerals. They are not explained again in detail.
- the inlet nozzle 20 is not on the side surface 40a, but on the side surface 40b, ie immediately adjacent to the outlet 22, respectively. Further, in the side surface 40 f, a threaded bore 58 is introduced, in which a pressure sensor 60 is screwed. The threaded hole 58 communicates with the stepped bore 46, in which the inlet port 20 is fixed. By the pressure sensor 60, therefore, the pressure in a low pressure region (without reference numeral) of the fuel system 12 can be detected.
- the pressure sensor 60 is a commercial part, which can be easily attached to the housing 34 of the high-pressure piston pump 18 due to the presence of the straight side surface 40f and sealed, for example, via an O-ring 61. Due to the direct attachment of the pressure sensor 60 to the high-pressure piston pump 18, additional installations in the line area between the prefeed pump 16 and the high-pressure piston pump 18 are not required.
- FIG. 4 is very clear that when using a hexagonal profile 39 for the housing 34 on the one hand, the electrical components 30 and 60 and on the other hand connected to the fluid lines components 20 and 22 can be grouped in a simple manner opposite. This simplifies the corresponding wiring again.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003122602 DE10322602A1 (de) | 2003-05-20 | 2003-05-20 | Kolbenpumpe, insbesondere Hochdruck-Kraftstoffpumpe |
EP20040007021 EP1479903B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04007021.1 Division | 2004-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2312149A1 true EP2312149A1 (fr) | 2011-04-20 |
EP2312149B1 EP2312149B1 (fr) | 2013-05-22 |
Family
ID=33039211
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040007021 Expired - Lifetime EP1479903B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
EP11153765.0A Expired - Lifetime EP2312149B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
EP11153643.9A Expired - Fee Related EP2312148B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040007021 Expired - Lifetime EP1479903B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11153643.9A Expired - Fee Related EP2312148B1 (fr) | 2003-05-20 | 2004-03-24 | pompe à pistons, en particulier pompe d'essence à haute pression |
Country Status (2)
Country | Link |
---|---|
EP (3) | EP1479903B1 (fr) |
DE (1) | DE10322602A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6595602B2 (ja) | 2015-08-28 | 2019-10-23 | 日立オートモティブシステムズ株式会社 | 高圧燃料ポンプ及びその製造方法 |
JP6747482B2 (ja) | 2017-09-29 | 2020-08-26 | 株式会社デンソー | 高圧ポンプ |
JP6809520B2 (ja) | 2017-09-29 | 2021-01-06 | 株式会社デンソー | 高圧ポンプ |
JP6708238B2 (ja) | 2017-09-29 | 2020-06-10 | 株式会社デンソー | 高圧ポンプ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573344A (en) * | 1946-09-13 | 1951-10-30 | Everett P Larsh | Fuel injector |
US3220351A (en) * | 1963-05-28 | 1965-11-30 | Technicon Chromatography Corp | Positive displacement pump |
US5863187A (en) * | 1997-02-10 | 1999-01-26 | Ivek Corporation | Two position rotary reciprocating pump with liquid displacement flow adjustment |
EP0900934A2 (fr) * | 1997-09-05 | 1999-03-10 | Denso Corporation | Dispositif d'alimentation en carburant |
EP1188926A2 (fr) * | 2000-09-19 | 2002-03-20 | Siemens Aktiengesellschaft | Pompe d'alimentation pour rampe d'alimentation en essence |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6503066B1 (en) * | 2000-06-20 | 2003-01-07 | Curtiss-Wright Flow Control Corporation | Hydrostatic pressure test pump |
US6419459B1 (en) * | 2000-10-02 | 2002-07-16 | Gardner Denver, Inc. | Pump fluid cylinder mounting assembly |
-
2003
- 2003-05-20 DE DE2003122602 patent/DE10322602A1/de not_active Withdrawn
-
2004
- 2004-03-24 EP EP20040007021 patent/EP1479903B1/fr not_active Expired - Lifetime
- 2004-03-24 EP EP11153765.0A patent/EP2312149B1/fr not_active Expired - Lifetime
- 2004-03-24 EP EP11153643.9A patent/EP2312148B1/fr not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573344A (en) * | 1946-09-13 | 1951-10-30 | Everett P Larsh | Fuel injector |
US3220351A (en) * | 1963-05-28 | 1965-11-30 | Technicon Chromatography Corp | Positive displacement pump |
US5863187A (en) * | 1997-02-10 | 1999-01-26 | Ivek Corporation | Two position rotary reciprocating pump with liquid displacement flow adjustment |
EP0900934A2 (fr) * | 1997-09-05 | 1999-03-10 | Denso Corporation | Dispositif d'alimentation en carburant |
EP1188926A2 (fr) * | 2000-09-19 | 2002-03-20 | Siemens Aktiengesellschaft | Pompe d'alimentation pour rampe d'alimentation en essence |
Also Published As
Publication number | Publication date |
---|---|
DE10322602A1 (de) | 2004-12-09 |
EP2312148B1 (fr) | 2013-10-16 |
EP2312149B1 (fr) | 2013-05-22 |
EP2312148A1 (fr) | 2011-04-20 |
EP1479903A1 (fr) | 2004-11-24 |
EP1479903B1 (fr) | 2011-05-25 |
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