CN1532401A - Thin film type motor carbon-hydrogen fuel pump for motor vehicle - Google Patents
Thin film type motor carbon-hydrogen fuel pump for motor vehicle Download PDFInfo
- Publication number
- CN1532401A CN1532401A CNA2004100301397A CN200410030139A CN1532401A CN 1532401 A CN1532401 A CN 1532401A CN A2004100301397 A CNA2004100301397 A CN A2004100301397A CN 200410030139 A CN200410030139 A CN 200410030139A CN 1532401 A CN1532401 A CN 1532401A
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- CN
- China
- Prior art keywords
- piston
- cam
- motor
- pump
- hydrocarbon fuel
- 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.)
- Pending
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The pump has a membrane (50) with its peripheral end attached between a guiding body (20) and a hydraulic block. A piston (22) driving mechanism comprises a cam (42) having an eccentric cylinder that is driven, through intermediate gears, by an engine shaft. Axes of gears and the cam are parallel to the shaft and perpendicular to the direction of movement of the piston.
Description
Technical field
The present invention relates to a kind of electronic hydrocarbon fuel pump of film type that is used for Motor Vehicle.This pump is used in particular for providing hydrocarbon fuel to two-wheeled vehicle, but is not limited to this application.
Background technique
For the consumption and the disposal of pollutants of the motor that reduces two-wheeled vehicle, people use a kind of when vent closure, and hydrocarbon fuel is directly injected to system in the cylinder.This injection needs a flow to be adapted to the hydrocarbon fuel pump of the motor of work under the pressure of 8 crust greatly.The efficient that is used for the conventional pump of automobile, press pump as usual, turbine pump or has a pump of annular side passage is not enough to be applied to satisfactorily these Motor Vehicle.Particularly, their design needs a kind of motor to be immersed in function in the hydrocarbon fuel, and this can influence their efficient and performance.
Claimant's document FR-2814779 has described a kind of electronic hydrocarbon fuel pump that has film, can partly address these problems.The film of its pump directly is connected with a piston, and the alternately axial motion of piston can produce a negative pressure or an overvoltage in the working room that is positioned at the film opposite side.A driving mechanism makes piston carry out axial motion by the rotation drive of motor, and the axle of piston is parallel with the axle of motor.It is less and make in the isolated jacket tube of the hydraulic part of driving mechanism and motor that this design can be placed on size to pump, and efficient is improved.But there are some shortcomings in this pump.Because the axle of piston and motor is parallel, the axle of driving mechanism and motor spool vertical and be subjected to axial force, the wearing and tearing of this axial force meeting accelerated motion parts.In addition, the film that is subjected to strong effect has limited working life.
Summary of the invention
The objective of the invention is to overcome these shortcomings, propose a kind of more anti abrasive hydrocarbon fuel pump of simplicity of design, and in a little volume, have high efficient.
Therefore, theme of the present invention is a kind of electronic hydrocarbon fuel pump of film type that is used for Motor Vehicle, and this pump comprises:
-one motor component;
-one guide body, a piston is installed in wherein;
-one driving mechanism is used for the rotation of motor is converted to the alternately axial motion of piston;
-one hydraulic unit comprises a suction passage that is connected with storage tank and a supercharging passage that is connected with the injection apparatus of motor car engine, and described passage is communicated with a working room by some opposite safety check of installing.
Pump comprises at least one film in addition, the periphery of film is fastened between guide body and the hydraulic unit, the core of described at least one film is fixed on the piston, and the driving mechanism of piston comprises a cylinder eccentric cam, this cam is driven by motor shaft by a gear mechanism and rotates, the axle of gear mechanism and cam is parallel with motor shaft, and vertical with the movement direction of piston.Therefore, an axle bearing radial force of gear mechanism so just can increase their working life.Is installed the working life that one or more films also can improve pump.
In an advantageous embodiments, gear mechanism comprises at least one epicyclic train of gears, and this epicyclic train of gears comprises that a fixed gear ring and one are used to drive the planetary carrier (porte-satellites) of the rotation of cam rotation.Therefore the reduction speed ratio that obtains is specially adapted to the motor of a two-wheeled vehicle.In another embodiment, gear mechanism comprises at least one epicyclic train of gears, and this epicyclic train of gears comprises a fixing planetary carrier and a rotation gear ring that is used to drive the cam rotation.The reduction speed ratio that obtains can be used for the pump that a four-wheeled vehicle motor uses, for example oil feed pump of a diesel engine.But these embodiments can independent utility.Difference between these embodiments is relevant with rotating speed of motor and reduction speed ratio, and reduction speed ratio is used for the frequency of knocking of film is taken to a value that is consistent with application.Therefore, will select one or another embodiment according to employed motor and the desirable frequency of knocking.Knock frequency life-span of the pressure pulse of the flow of pump, supercharging, film, cavity receptance, inlet capacity etc. are had certain influence.
In addition, use an epicyclic train can limit the volume of driving mechanism.
According to an embodiment, two to four film overlaies and be fixed on hydraulic unit and guide body between.Film is used for pumping simultaneously and guarantees motor component and the sealing of driving mechanism, makes hydrocarbon fuel not pass driving mechanism, therefore raises the efficiency.
In a specific embodiments, the cylinder eccentric cam and the piston of pump has dual a contact, makes that driving piston when cam turns around carries out a to-and-fro motion in guide body.Therefore the motion of piston is regular fully and control is arranged.Advantageously, a needle bearing to reduce the friction between cam and the piston, therefore reduces the wearing and tearing of part between eccentric cam and piston.
In a modification, pump comprises a pressure-limit valve in suction passage, be used to limit boost pressure, the power that piston drive provides in the time of can limiting supercharging like this.
Pump can also have a spring, by Piston Compression, loosens when supercharging and cam participates in moving of piston together when this spring sucks.Therefore, during supercharging, when the power that promptly provides was maximum, cam, driving mechanism and motor were hit less, can improve their life-span like this.
In a modification, the gear mechanism of motor component, driving mechanism and the part of guide body all are contained in the tubular overcoat of a sealing, and the another part with guide body of piston and cam is included in the can of being made up of two shells, and one of them shell holds hydraulic unit.Like this, the pump that obtains has little volume.
Description of drawings
Describe other advantage of the present invention and embodiment referring now to the indefiniteness accompanying drawing, accompanying drawing is as follows:
-Fig. 1 is an embodiment's of a pump of the present invention exploded view;
-Fig. 2 is the axial section of the pump of Fig. 1;
-Fig. 3 is the sectional elevation along A-A line among Fig. 2;
-Fig. 4 is another embodiment's of a pump of the present invention axial sectional view;
-Fig. 5 is the sectional elevation along B-B line among Fig. 4.
Embodiment
With reference to Fig. 1-3, in first embodiment, electronic hydrocarbon fuel pump 10 comprises a motor component 12, gives motor component 12 power supplies by conductor 14 from the power supply of vehicle.In conductor 14 1 sides, a cover 16 guarantees the insulation of motor end.Therefore some conductor (not shown) that are combined in the cover 16 contact with the conductor 14 of motor component, guarantee being electrically connected between power supply and the motor.This layout can obtain the excellent sealing with respect to the motor component overcoat.
The axle 30 of motor 12 drives a gear 32 and rotates, and the planetary pinion 34 that gear 32 drives an epicyclic train of gears or epicyclic train again rotates.The quantity of planetary pinion 34 is three.They are rotatably installed in the planetary carrier 36.Planetary pinion 34 rotates in a fixed gear ring 38 with internal tooth.Gear ring 38 links to each other with the internal surface of the cylindrical section 20a of tube body, and gear ring 38, planetary pinion 34 and planetary carrier 36 all are contained among this cylindrical section 20a.
Planetary carrier 36 and one and motor shaft 30 coaxial axles 40 are rotationally connected.Axle 40 drives a cylinder eccentric cam 42 and rotates.Axle 40 is at two eyelet tourillonne of the parallelepiped part 20b of the guide body that is arranged in elongate chamber 20c both sides, for example tourelle or the bearing 44 that supports by part 70.
Be clearly shown that as Fig. 3 cam 42 is received in one and passes in the oval-shaped groove 46 that piston 22 forms.Needle bearing 48, as in the groove of a needle roller sleeve between cam and piston, the surface of cam is contacted with the needle roller of sleeve 48, and sleeve 48 has two radially relative point of contact all the time on the wall of groove 46.
Piston 22 is fixed on towards the surface of hydraulic unit on the core of a film 50, and the periphery of film 50 tightly is locked between the shell 26 of the part 20b of guide body and shell.In order to improve the life-span of pump, it is overlapping that several films are carried out.Preferably use two to four films.
Hydraulic unit has a suction passage 52 that is connected with the hydrocarbon fuel storage tank of Motor Vehicle and a supercharging passage 54 that is connected with the injection apparatus of Motor Vehicle.Described passage is communicated with a working room that forms on the internal surface of hydraulic unit 60 by two safety check of installing relatively 56 and 58, and working room 60 is relative with the core of film 50.Valve 56,58 is respectively by return spring their valve seats separately that reclines.But valve also can be valve or " duckbilled " valve that does not have return spring.Another pressure-limit valve 62 is arranged in suction passage 52, and by recline its valve seat of a spring 64.This valve can limit the amount of the hydrocarbon fuel that enters working room 60, the pressure when therefore limiting supercharging.Its application is depended in the demarcation of valve 62.Can regulate,, a four-stroke moped is limited in about 4 crust so that the boost pressure of a two stroke moped is limited in about the 10-11 crust.
On the end relative that piston 22 abuts in a helical spring 66 with film 50.The recline bottom of shell 24 of shell of the other end of spring 66.
Sealing between the part 20b of shell 26 and guide body guarantees by film 50, and the sealing between shell 24 and the part 20b guarantees by a Gask-O-Seal 68.Sealing between guide body 20 and the overcoat 18 guarantees by a Gask-O-Seal 69 between cylindrical section 20a and overcoat internal surface.Gask-O-Seal 72 guarantees the sealing between the internal surface of electrical machinery cover 16 and tubular overcoat 18.A sealing gasket 73 guarantees the sealing of the valve 62 in the suction passage 52.Therefore pump 10 seals fully, so pump can be immersed in the hydrocarbon fuel storage tank of Motor Vehicle fully.
In this embodiment, suction passage 52 and supercharging passage 54 points to an opposite direction with the motor shaft parallel direction, so reduced the volume of pump.But, can change this direction according to using.This pump is specially adapted to moped, but is not limited to moped.
Also be provided with one in the suction passage 52 and filter part 78, so that protection pump and be positioned at the injection apparatus in the downstream of pump, prevent the impurity that exists in the hydrocarbon fuel, these impurity can cause fault.
Referring now to Fig. 4,5 another embodiment is described.This embodiment is specially adapted to the motor of four-wheeled vehicle, but also can be used for other application.Shown in the overall structure of pump identical with the pump structure of describing just now, main difference is the gear structure of driving mechanism.Identical part is denoted by like references.
Gear structure is made of an epicyclic train of gears, comprises a rotation gear ring 74 that internal tooth is arranged, and is rotationally connected with the rotatingshaft 40 of cam 42.A fixing planetary carrier 76 and a motor bearing associating that is positioned at motor 12 ends of overcoat 18.The gear 32 that is connected with motor shaft drives planetary pinion 80 and rotates, and the axle of planetary pinion 80 is supported by planetary carrier 76.Gear ring 74, planetary carrier 76 and planetary pinion 80 all are arranged in the part 20a of guide body.
Pressure-limit valve 62 is cancelled, and replaces a unshowned outer regulator.But can add pressure-limit valve again according to the use of pump.Although the direction of suction passage 52 and supercharging passage 54 directed in opposite on a direction vertical with motor shaft, the volume of pump is still less.Also can realize the configuration identical with first embodiment.
An operation period of pump 10 is described now.When giving motor 12 power supplies, its shaft driven gear 32 rotates.In the embodiment shown in Fig. 1-3, gear 32 rotates the planetary pinion 34 in the fixed gear ring 38, makes planetary pinion drive planetary carrier 36 and rotates, and therefore drives cam 42 and rotates.In the embodiment shown in Fig. 4,5, the planetary pinion 80 that gear 32 drives in the gear ring 74 rotates.Because planetary carrier 76 is fixed, so therefore gear ring 74 is driven cam 42 and rotates by the drive rotation.That describes among the operation of pump and the document FR-2814779 then is identical, and promptly cam 32 rotates a circle in oval recess 46, cause one of piston towards with the rightabout motion of film and piston return movement towards film.Because piston is connected with film, these motions cause an interior overvoltage of interior negative pressure of working room 60 and working room 60 respectively, and negative pressure causes the hydrocarbon fuel of a dosage is drawn onto in the working room, and negative pressure causes hydrocarbon fuel is extruded from the working room.
Can be according to using and the reduction speed ratio of the type change epicyclic gear system of used motor, so that obtain desirable flow.For this reason, the cross section of the volume and/or the piston of working room 60 be can change, and safety check and/or pressure-limit valve regulated.
Claims (9)
1. be used for the electronic hydrocarbon fuel pump of film type (10) of Motor Vehicle, it comprises:
-one motor component (12);
-one guide body (20), a piston (22) is installed in wherein;
-one driving mechanism is used for the rotation of motor is converted to the alternately axial motion of piston;
-one hydraulic unit, comprise a suction passage that is connected with storage tank (52) and a supercharging passage (54) that is connected with the injection apparatus of motor car engine, described passage (52,54) is communicated with a working room (60) by the safety check of installing relatively (56,58);
This pump comprises at least one film (50), its periphery is fastened between guide body (20) and the hydraulic unit, the core of described at least one film (50) is fixed on the piston (22), and the driving mechanism of piston (22) comprises a cylinder eccentric cam (42), cam is rotated by axle (30) drive of motor by a gear mechanism, and gear mechanism comprises at least one epicyclic train of gears (32,34,36,38; 32,74,76,80), the axle of gear mechanism and cam is parallel with the axle (30) of motor, and vertical with the movement direction of piston (22).
2. pump as claimed in claim 1 is characterized in that, described at least one epicyclic train of gears comprises that a fixed gear ring (38) and one are used to drive the planetary carrier (36) of the rotation that cam (42) rotates.
3. hydrocarbon fuel pump as claimed in claim 1 is characterized in that, described at least one epicyclic train of gears comprises a fixing planetary carrier (76) and a rotation gear ring (74) that is used to drive cam (42) rotation.
4. as the described hydrocarbon fuel pump of one of claim 1-3, it is characterized in that two to four overlapping films (50) are fixed between hydraulic unit and the guide body.
5. as the described hydrocarbon fuel pump of one of claim 1-4, it is characterized in that cylinder eccentric cam (42) has dual a contact with piston (22), make when cam rotation one circle, drive piston (22), make piston in guide body (20), carry out a to-and-fro motion.
6. hydrocarbon fuel pump as claimed in claim 5 is characterized in that, a needle bearing (48) is positioned between cam (42) and the piston (22).
7. as the described hydrocarbon fuel pump of one of claim 1-6, it is characterized in that this pump comprises a pressure-limit valve (62) that can limit boost pressure in suction passage (52).
8. as the described hydrocarbon fuel pump of one of claim 1-7, it is characterized in that this pump has a spring (66), this spring by piston (22) compression, loosens when supercharging when sucking, and participates in moving of piston (22) with cam (42).
9. as one of above-mentioned claim described hydrocarbon fuel pump, it is characterized in that the gear mechanism (32,34,36,38 of motor component (12), driving mechanism; 32,74,76,80) and the part (20a) of guide body (20) all be contained in the tubular overcoat (18) of a sealing, and another part (20b) with piston (22) and cam (42) of bootstrap block (20) is contained in one by two shells (24,26) in the can of Zu Chenging, one of them shell (26) comprises hydraulic unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0303338 | 2003-03-19 | ||
| FR0303338A FR2852635B1 (en) | 2003-03-19 | 2003-03-19 | ELECTRIC FUEL PUMP MEMBRANE TYPE FOR MOTOR VEHICLE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1532401A true CN1532401A (en) | 2004-09-29 |
Family
ID=32799687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100301397A Pending CN1532401A (en) | 2003-03-19 | 2004-03-19 | Thin film type motor carbon-hydrogen fuel pump for motor vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1460260A3 (en) |
| CN (1) | CN1532401A (en) |
| FR (1) | FR2852635B1 (en) |
| TW (1) | TWI254100B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562363A (en) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | Liquidified Petroleum Ejection System For Vehicle |
| CN109209896A (en) * | 2018-10-29 | 2019-01-15 | 淼汇能源科技（上海）有限公司 | High lift Water raiser |
| CN111148899A (en) * | 2017-08-11 | 2020-05-12 | 惠普发展公司，有限责任合伙企业 | Fluid pump with transposer |
| CN114893401A (en) * | 2022-05-12 | 2022-08-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1813803A1 (en) * | 2006-01-30 | 2007-08-01 | MAGNETI MARELLI POWERTRAIN S.p.A. | Fuel pump operated by means of a shape memory material |
| EP1837514A1 (en) * | 2006-03-23 | 2007-09-26 | Magneti Marelli Powertrain S.p.A. | Fuel supply assembly for an internal combustion engine |
| FR2940368A1 (en) * | 2008-12-18 | 2010-06-25 | Valeo Sys Controle Moteur Sas | FUEL INJECTION DEVICE FOR MOTOR VEHICLE DIRECT INJECTION ENGINE |
| FR2940370A1 (en) * | 2008-12-18 | 2010-06-25 | Valeo Sys Controle Moteur Sas | FUEL INJECTION DEVICE FOR MOTOR VEHICLE DIRECT INJECTION ENGINE |
| CN107524608B (en) * | 2016-06-22 | 2019-11-01 | 泓记精密股份有限公司 | Electric fuel oil pumping |
| CN109944781A (en) * | 2019-04-30 | 2019-06-28 | 深圳市博威克斯科技有限公司 | A kind of dual head diaphragm pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774477A (en) * | 1971-12-30 | 1973-11-27 | D Murphy | Gear motor |
| US4068982A (en) * | 1976-12-20 | 1978-01-17 | Graco Inc. | Charge control valve and piston assembly for diaphragm pump |
| DE3410305C1 (en) * | 1984-03-21 | 1985-09-05 | Alldos Eichler Kg, 7507 Pfinztal | Diaphragm pump |
| JP2866246B2 (en) * | 1992-02-18 | 1999-03-08 | 住友重機械工業株式会社 | Speed reducer series with internal meshing planetary gear structure |
| JPH09242672A (en) * | 1996-03-07 | 1997-09-16 | Ouken Seiko Kk | Reciprocating pump |
| FR2814779B1 (en) * | 2000-10-04 | 2003-01-10 | Sofabex | MEMBRANE ELECTRIC FUEL PUMP |
-
2003
- 2003-03-19 FR FR0303338A patent/FR2852635B1/en not_active Expired - Fee Related
-
2004
- 2004-03-15 EP EP04290703A patent/EP1460260A3/en not_active Withdrawn
- 2004-03-18 TW TW93107260A patent/TWI254100B/en not_active IP Right Cessation
- 2004-03-19 CN CNA2004100301397A patent/CN1532401A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562363A (en) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | Liquidified Petroleum Ejection System For Vehicle |
| CN102562363B (en) * | 2010-12-06 | 2016-03-30 | 现代自动车株式会社 | For the liquefied petroleum injection system of vehicle |
| CN111148899A (en) * | 2017-08-11 | 2020-05-12 | 惠普发展公司，有限责任合伙企业 | Fluid pump with transposer |
| US11493030B2 (en) | 2017-08-11 | 2022-11-08 | Hewlett-Packard Development Company, L.P. | Fluid pumps with shifters |
| CN109209896A (en) * | 2018-10-29 | 2019-01-15 | 淼汇能源科技（上海）有限公司 | High lift Water raiser |
| CN109209896B (en) * | 2018-10-29 | 2021-03-30 | 淼汇能源科技（上海）有限公司 | High-lift water pumping device |
| CN114893401A (en) * | 2022-05-12 | 2022-08-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
| CN114893401B (en) * | 2022-05-12 | 2023-12-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200502485A (en) | 2005-01-16 |
| FR2852635B1 (en) | 2006-06-23 |
| TWI254100B (en) | 2006-05-01 |
| EP1460260A3 (en) | 2005-10-26 |
| EP1460260A2 (en) | 2004-09-22 |
| FR2852635A1 (en) | 2004-09-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |