CN1836107A - Inner gear-wheel pump comprising reinforced channels - Google Patents

Inner gear-wheel pump comprising reinforced channels Download PDF

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Publication number
CN1836107A
CN1836107A CNA2004800233538A CN200480023353A CN1836107A CN 1836107 A CN1836107 A CN 1836107A CN A2004800233538 A CNA2004800233538 A CN A2004800233538A CN 200480023353 A CN200480023353 A CN 200480023353A CN 1836107 A CN1836107 A CN 1836107A
Authority
CN
China
Prior art keywords
fuel pump
housing parts
pipeline
housing
rib
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
CNA2004800233538A
Other languages
Chinese (zh)
Other versions
CN100564878C (en
Inventor
霍尔格·巴尔特
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
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 filed Critical Siemens AG
Publication of CN1836107A publication Critical patent/CN1836107A/en
Application granted granted Critical
Publication of CN100564878C publication Critical patent/CN100564878C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention relates to a gerotor fuel pump (2) comprising ribs (18, 19), which are located in channels (16, 17) that are configured as inlets and outlets and that are situated in housing parts (8, 9). The ribs (18, 19) are positioned transversely to the maximal extension of the cross-sections of the channels (16, 17), producing a high degree of stability in said channels (16, 17). The housing parts (8, 9) are composed of plastic.

Description

Crescent gear pump with reinforced cut-out
The present invention relates to a kind of fuel pump according to the work of cycloid rotor principle, be used for carrying fuel oil from the Motor Vehicle fuel tank, this fuel pump has: housing; The rotor of installing between two housing parts is right; The inlet pipe that is designed to extend and the outlet conduit that in housing, are provided with.
Such fuel pump in current Motor Vehicle particularly through being usually used in carrying diesel oil, and known in practice.According to the rotor of the fuel pump of cycloid rotor principle work to having internal rotor that has external tooth and the external rotor that has internal tooth.Duo one than the number of teeth of internal tooth under the most of situation of external tooth.The rotating center of internal rotor and the rotating center of external rotor are misplaced (skew) mutually.Inlet pipe is arranged in the relative housing parts under most of situation with outlet conduit.Thereby make flow axis to the fuel pump of flowing through.
The shortcoming of disclosed fuel pump is, the pipeline of the elongation of entrance and exit can damage the stability of housing.In practice, be used for radially fixing by the stiffening ring that steel is set in housing parts and two ceramic plates be set or sheet metal is handled this situation as the right axial qualifier of rotor.Therefore, disclosed fuel pump becomes expensive especially.
The objective of the invention is to improve the fuel pump of the described type of beginning, make this fuel pump design especially simply and make with being dirt cheap.
Realize this purpose like this according to the present invention, promptly at least one pipeline has at least one rib that is used to strengthen housing.
By this design, rib can be strengthened pipeline and and then can avoid the bending of the housing in conduit region.Housing has very high stability in conduit region whereby.For outlet, high stability has very big advantage especially, because there is very high power vertically to act on the shell area with outlet conduit here.Can avoid whereby by the bending of the housing that power caused in conduit region that produces.Thereby housing can be by the very material and the very cheap made of thin-walled.According to the therefore independent stiffening ring that is assembled of needs not of fuel pump of the present invention, therefore design simply especially, and can also be made especially at an easy rate.
For example can many ribs be covered in the pipeline grid-likely.According to another favourable improvement project of the present invention, when at least one rib was connected with each other transverse to the longest bearing of trend setting of the cross section of pipeline and the shell rim positioned opposite to each other that will limit pipeline, the quantity of rib can keep seldom.In addition, utilize this method to make the size of rib and throttling action keep very little.
When the zone adjacent to pipeline of rib and housing is made into integration, reduced assembly fee usefulness further according to fuel pump of the present invention.
When at least one housing parts is made of plastics, can make especially at an easy rate according to fuel pump of the present invention.The low-intensity of the housing parts of comparing with the ceramic plate of disclosed fuel pump that is made of plastics is by in ducted rib compensation.
Another favourable improvement project according to the present invention, when housing parts links together by bolt each other, when a housing parts in the housing parts that wherein is made of plastics had the holder that is used for metal nuts, the connection of housing parts needed construction expenditure seldom.Metal nuts has been guaranteed the enough stability according to fuel pump of the present invention.
The present invention allows a large amount of embodiments, in order to further specify its basic principle, with accompanying drawing one of them embodiment is shown, and following it is described.There is shown:
Fig. 1 has the sectional view according to the supply unit of fuel pump of the present invention;
Exploded view among Fig. 2 Fig. 1 according to fuel pump of the present invention.
Fig. 1 shows the sectional view of a supply unit (oil supply unit in other words), and it is used for diesel oil is transported to the internal-combustion engine that has a fuel pump 2 that is driven by motor 1 from the fuel tank (not shown) of Motor Vehicle.Fuel pump 2 has axle 3 internal rotors that are connected 4 with motor 1, and internal rotor 4 constitutes rotor to 6 with external rotor 5.External rotor 5 radially is placed in the annular element 7 and is axially placed between two housing parts 8,9 of housing 10.The axle 3 of motor 1 is provided with coupling 11, and this coupling is connected with internal rotor 4 antitorquely.In addition, axle 3 has the radial bearing that has axle sleeve 12 in the housing parts 8 away from the fuel pump 2 of motor 1.Pump cover 13 has an oil inlet pipe 14.Supply unit has connecting tube 15 in its end away from fuel pump 2, and it is used to lead to the fuel line of internal-combustion engine.The fuel oil axial flow that is transferred is whereby crossed supply unit.
Fig. 2 shows the exploded view of the fuel pump 2 among Fig. 1, and each housing parts 8,9 all has the pipeline 16,17 of elongation.Pipeline 17 is as the outlet of fuel pump 2, this pipeline is arranged on expection and is arranged near the motor 1 among Fig. 1 the housing parts 9, and pipeline 16 constitutes the inlet of fuel pumps 2, and this pipeline 16 is arranged on expection and is arranged near the pump cover 13 among Fig. 1 the housing parts 8.Housing parts 8,9 respectively has rib 18,19, and these ribs are transverse to the longest bearing of trend setting of pipeline 16,17. Rib 18,19 couples together the edge positioned opposite to each other of each pipeline 16,17 of housing parts 8,9 qualification separately. Rib 18,19 is used to guarantee in the interior desirable stability in the zone of pipeline 16,17, thereby makes housing parts 8,9 to be made of plastics.In addition, housing parts 8,9 being shown among Fig. 2 utilizes bolt 20 to link together.Bolt 20 screws in and is arranged in the steel nut 21 of a housing parts 8 in the housing parts.Housing parts 8 has a holder that is designed to groove 22 that is used for nut 21.

Claims (5)

1. according to the fuel pump of cycloid rotor principle work, be used for carrying fuel oil from the Motor Vehicle fuel tank, this fuel pump has: housing; The rotor of settling between two housing parts is right; That be provided with and inlet pipe that be designed to extend and outlet conduit is characterized in that in described housing, and at least one pipeline in the described pipeline (16,17) has at least one rib (18,19), are used to strengthen described housing (10).
2. fuel pump according to claim 1, it is characterized in that, at least one described rib (18,19) transverse to described pipeline (16, the longest bearing of trend setting of cross section 17), and the edge that will limit the respect to one another described housing (10) of described pipeline (16,17) is connected with each other.
3. fuel pump according to claim 1 and 2 is characterized in that, described rib (18,19) is made into integration with the zone adjacent to described pipeline (16,17) of described housing (10).
4. according at least one described fuel pump in the aforementioned claim, it is characterized in that at least one described housing parts (8,9) is made of plastics.
5. according at least one described fuel pump in the aforementioned claim, it is characterized in that described housing parts (8,9) links together by bolt, the described housing parts (8) that one of them is made of plastics has the holder (22) that is used for metal nuts (21).
CNB2004800233538A 2003-09-09 2004-07-30 Crescent gear pump with reinforced cut-out Expired - Fee Related CN100564878C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341841A DE10341841A1 (en) 2003-09-09 2003-09-09 According to the gerotor principle working fuel pump
DE10341841.5 2003-09-09

Publications (2)

Publication Number Publication Date
CN1836107A true CN1836107A (en) 2006-09-20
CN100564878C CN100564878C (en) 2009-12-02

Family

ID=34258551

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004800233538A Expired - Fee Related CN100564878C (en) 2003-09-09 2004-07-30 Crescent gear pump with reinforced cut-out

Country Status (8)

Country Link
US (1) US20060153706A1 (en)
EP (1) EP1664539B1 (en)
JP (1) JP2007504398A (en)
KR (1) KR20060113652A (en)
CN (1) CN100564878C (en)
DE (2) DE10341841A1 (en)
ES (1) ES2308231T3 (en)
WO (1) WO2005026552A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104736848A (en) * 2012-10-19 2015-06-24 罗伯特·博世有限公司 Internal gear pump
CN111472914A (en) * 2020-04-15 2020-07-31 台州华崧汽车部件有限公司 Oil pump with leakage-proof device and oil leakage detection method thereof
CN112105817A (en) * 2018-05-07 2020-12-18 翰昂汽车零部件德国有限公司 Fluid pump system

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Publication number Priority date Publication date Assignee Title
EP2031247A1 (en) * 2007-08-31 2009-03-04 Pfizer Inc. Liquid Pump
DE102008000701A1 (en) * 2008-03-17 2009-09-24 Robert Bosch Gmbh fuel pump
EP2557306A1 (en) * 2011-08-08 2013-02-13 Delphi Technologies Holding S.à.r.l. Fuel pump
JP2016125361A (en) * 2014-12-26 2016-07-11 株式会社デンソー Fuel pump
JP6418059B2 (en) * 2015-05-12 2018-11-07 株式会社デンソー Fuel pump
JP6409673B2 (en) 2015-05-14 2018-10-24 株式会社デンソー Fuel pump
WO2016205819A1 (en) 2015-06-19 2016-12-22 Clarcor Engine Mobile Solutions, Llc Brushless dc motor control and methods of operating a fuel pump
US20160369796A1 (en) * 2015-06-19 2016-12-22 Clarcor Engine Mobile Solutions, Llc Integrated Motor-Pump
JP6507998B2 (en) * 2015-11-03 2019-05-08 株式会社デンソー Fuel pump

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104736848A (en) * 2012-10-19 2015-06-24 罗伯特·博世有限公司 Internal gear pump
CN112105817A (en) * 2018-05-07 2020-12-18 翰昂汽车零部件德国有限公司 Fluid pump system
US11686313B2 (en) 2018-05-07 2023-06-27 Hanon Systems Efp Deutschland Gmbh Fluid pumping system
CN111472914A (en) * 2020-04-15 2020-07-31 台州华崧汽车部件有限公司 Oil pump with leakage-proof device and oil leakage detection method thereof
CN111472914B (en) * 2020-04-15 2021-04-20 温州仁谦汽车油泵有限公司 Oil pump with leakage-proof device and oil leakage detection method thereof

Also Published As

Publication number Publication date
US20060153706A1 (en) 2006-07-13
EP1664539B1 (en) 2008-06-11
DE502004007363D1 (en) 2008-07-24
DE10341841A1 (en) 2005-04-07
ES2308231T3 (en) 2008-12-01
JP2007504398A (en) 2007-03-01
KR20060113652A (en) 2006-11-02
EP1664539A1 (en) 2006-06-07
WO2005026552A1 (en) 2005-03-24
CN100564878C (en) 2009-12-02

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CONTINENTAL AUTOMOTIVE GMBH

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT

Effective date: 20110615

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: MUNICH, GERMANY TO: HANNOVER, GERMANY

TR01 Transfer of patent right

Effective date of registration: 20110615

Address after: Hannover

Patentee after: Continental Automotive GmbH

Address before: Munich, Germany

Patentee before: Siemens AG

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Hannover

Patentee after: Continental Automotive GmbH

Address before: Hannover

Patentee before: Continental Automotive GmbH

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091202

Termination date: 20200730

CF01 Termination of patent right due to non-payment of annual fee