WO2004029444A1 - 燃料噴射装置モジュール - Google Patents
燃料噴射装置モジュール Download PDFInfo
- Publication number
- WO2004029444A1 WO2004029444A1 PCT/JP2003/012159 JP0312159W WO2004029444A1 WO 2004029444 A1 WO2004029444 A1 WO 2004029444A1 JP 0312159 W JP0312159 W JP 0312159W WO 2004029444 A1 WO2004029444 A1 WO 2004029444A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- injector
- pump
- injection
- module
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 155
- 238000002347 injection Methods 0.000 title claims abstract description 52
- 239000007924 injection Substances 0.000 title claims abstract description 52
- 239000002828 fuel tank Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/04—Pumps peculiar thereto
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
Definitions
- the present invention relates to a fuel injection module used for a vehicle such as a motorcycle, and in particular, to a fuel that is driven by an output shaft of an electric motor and boosts fuel introduced from a fuel tank and pumps the fuel to an injector.
- the present invention relates to an improvement in which a pump and an injection pressure regulator that regulates the pressure of fuel that is pumped from the fuel pump to an injector are integrally connected.
- Such a fuel injector module is already known, for example, as disclosed in Patent Document 1.
- the module In a conventional vehicle equipped with a fuel injection module, the module is disposed between the engine and the fuel tank, so that the injector mounted on the engine and the fuel pump of the fuel injection module are connected to each other. In between, expensive high-pressure fuel conduits had to be installed, which hindered cost reduction.
- the present invention has been made in view of the above circumstances, and has as its object to reduce the cost of the fuel injector module by enabling the elimination of the high-pressure fuel conduit between the injector and the fuel pump.
- the present invention provides a fuel pump driven by an output shaft of an electric motor to boost the pressure of fuel introduced from a fuel tank and to pump the fuel to an injector.
- a fuel injector module that integrally combines an injection pressure regulator that regulates the pressure of fuel to be pumped from the injector to the injector, an injector holder that holds the injector is integrally formed in a module body that is coupled to the fuel pump.
- this module body was formed with a fuel passage communicating between the fuel pump, the injection pressure regulator, and the injector. This is the first feature.
- the module body also functions as a conventional high-pressure fuel conduit that connects between the fuel pump and the injector, thus eliminating the need for expensive high-pressure fuel conduit and piping work. As a result, the cost of the fuel injection module can be reduced.
- the module body is provided with a rollover shutoff valve that shuts off a fuel passage between the fuel pump and the injector in response to the rollover of the vehicle.
- the outflow cutoff valve can prevent fuel from flowing out of the fuel tank.
- a third feature is that a fuel strainer for filtering fuel introduced from a fuel tank is integrally connected to the fuel pump.
- the fuel strainer becomes a component of the fuel injector module, and the piping between the fuel strainer and the fuel pump can be eliminated. Since this filter filters out low-priced low-pressure types, it can contribute to reducing the cost of the fuel injection module.
- FIG. 1 is a side view of a main part of a motorcycle equipped with the fuel injection module of the present invention
- FIG. 2 is an enlarged side view of the fuel injection module
- FIG. 3 is an enlarged plan view of the fuel injection module
- FIG. 5 is a sectional view taken along line 5-5 in FIG. 2
- FIG. 6 is a sectional view taken along line 6-6 in FIG.
- FIG. 8A to 8C are explanatory diagrams of the configuration and operation of the rollover shutoff valve.
- FIG. 1 the body frame 1 of the motorcycle M as an example of the vehicle is shown in FIG.
- the front pipe 1 extends downward from the head pipe, not shown, and the rear pipe 1 r rises from the rear end and extends rearward.
- the front pipe If is located below the front pipe If.
- a 4-cycle engine E is mounted, and a fuel tank T is installed on the rear pipe 1r.
- the cylinder head 3 is arranged substantially horizontally with the cylinder head 2 facing the front of the motorcycle M.
- the upper end face of the cylinder head 2 where the intake port 4 is opened has: An intake pipe 5 connected to the intake port 4 is joined.
- the intake pipe 5 is connected to a throttle body 6 having a throttle valve, and the throttle body 6 is connected to an eraser 7.
- a support flange 5 a is formed on the upper side wall of the P and trachea 5, and the fuel injection module according to the present invention, which pressurizes the fuel in the fuel tank T and injects it into the intake port 4. MF attached.
- the fuel injection module MF will be described with reference to FIGS.
- the fuel injection module MF has an electric motor 10, fuel pump 11, fuel strainer 12, injector 13, injection pressure regulation 14, residual pressure holding valve 15, and rollover shutoff valve 16. .
- the electric motor 10 is a brushless type, and the inside of the motor housing 17 is integrated with the motor housing 17 by a cylindrical partition wall 17a. It is water-tightly divided into evening room 18 and low evening room 19 on the inner peripheral side. Stay coil 18 is fixed in stay room 18 and permanent magnet 22 is fixed in rotor room 19 on the outer periphery. The installed rotors 21 are respectively accommodated.
- a bearing post 23 disposed in the hollow part of the rotor 21 is formed in the cylindrical partition wall 17a, and the output shaft 21a of the rotor 21 is connected to the bearing member 24 via a bearing member 24. It is rotatably supported.
- the pump housing 26 of the fuel pump 11 is connected to one end surface of the motor housing 17.
- the pump housing 26 is fitted to the inner housing 26a and the outer periphery of the inner housing 26a via a seal member 27 to define a pump chamber 28 between the inner housing 26a and the inner housing 26a.
- the housing consists of 26 b
- the outer housing 26 b is fixed to the motor housing 17 with a plurality of ports 29 so that the inner housing 26 a is sandwiched between the motor housing 17 and the inner housing 26 a.
- the output shaft 21 a of the electric motor 10 has a tip extending to the pump chamber 28, and a pump rotor 30 is connected to the tip of the chamber 28.
- the fuel pump 11 constructed in this way is of the Wesco type.
- a vapor discharge pipe 33 protrudes from the body. That is, the vapor discharge pipe 33 communicates with the pump chamber 28 at a location where the vapor is easily discharged through the small hole 34.
- a strainer base 35 is formed in the suction pipe 31, and the strainer base 35, the strainer casing 36 connected to the strainer base 35, and the strainer case 36 are housed in the strainer case 36.
- the above-mentioned fuel strainer 12 is constituted by the strainer element 37, and the fuel supply connecting pipe 38 integrally formed in the strainer case 36 has a fuel supply pipe 39 extending from the fuel tank T. Is connected, and the fuel in the fuel tank T flows down to the fuel strainer 12 by gravity.
- the module pod 40 connected to the discharge pipe 32 and the vapor discharge pipe 33 is fixed to the bracket 41 projecting from one side of the motor housing 17 by the port 42. Is done.
- the module body 40 is provided with the injector 13, the injection pressure regulator 14, the residual pressure holding valve 15, and the rollover shutoff valve 16.
- the residual pressure holding valve 15 is constituted by a known check valve.
- An inlet hole 44 formed in the module body 40 of the rollover shutoff valve 16 communicates with the discharge pipe 32.
- the outlet hole 45 of the rollover shutoff valve 16 also communicates with the injection fuel passage 46 formed in the module body 40, and the injector 13 and the injection pressure regulator 14 are connected in parallel to the injection fuel passage 46.
- a pressure holding valve 15 for preventing backflow of fuel to the discharge pipe 32 side is interposed in the injection fuel passage 46 upstream of these.
- an injector holder 47 for holding the injector 13 is formed on the body.
- This injector holder 47 has a mounting flange 47 a corresponding to the support flange 5 a of the intake pipe 5.
- the mounting flange 47a is connected to the support flange 5a with the port 49, the fuel injection section of the injector 13 is inserted into the injector mounting hole 50 opened in the support flange 5a, and the intake port is connected. Pointed at 4.
- the injection pressure regulator 14 has a valve housing 62 formed integrally with the module body 40 with a valve seat 62 facing the injection fuel passage 46, and a A valve member 63 accommodated in the housing 61 and facing the valve seat 62; a pressure regulating spring 64 biasing the valve member 63 in the seating direction of the valve seat 62;
- the adjusting screw 65 is screwed into the housing 61 to adjust the set load of the pressure adjusting spring 64.
- the inside of the housing 61 is a fuel return passage in the module body 40. Through 6, it communicates with the fuel return connection pipe 67 integral with the module body 40.
- the vapor discharge pipe 33 opens in the middle of the fuel return passage 66.
- a fuel return pipe 68 leading to the fuel tank T is connected to the fuel return connection pipe 67.
- an electronic control unit 70 is provided on one side of the throttle body 6.
- the electronic control unit 70 is configured to control the injector 1 based on signals such as an input engine speed Ne, an engine temperature (for example, lubricating oil temperature) Te, a throttle opening Th of the throttle body 6, and a crank position Cp. 3. Control the operation of the electric motor 10 and ignition coil (not shown).
- the fuel in the fuel tank T travels down the fuel supply pipe 39 and reaches the fuel introduction connection pipe 38 of the fuel injection module MF, and the strainer case 36 of the fuel strainer 12 And is filtered by the strainer element 37.
- the fuel filtered in this way is sucked into the pump chamber 28 of the fuel pump 11, is pressurized by the rotation of the pump port 30, and is pumped from the discharge pipe 32 to the injection fuel passage 46.
- the vapor generated in the pump chamber 28 of the fuel pump 11 is discharged to the vapor discharge pipe 33 and reaches the fuel return passage 66.
- the high-pressure fuel pumped to the injection fuel passage 46 is supplied to the injector 13 via the rollover shutoff valve 16 and the residual pressure holding valve 15, and is injected from the injector 13 to the intake port 4.
- the vapor that has exited from the vapor discharge pipe 33 to the fuel return passage 66 is returned to the fuel tank T through the fuel return pipe 68 together with excess fuel, and is separated into gas and liquid in the fuel tank T.
- the fuel pump 11 stops discharging fuel, but the residual pressure holding valve 15 in the injection fuel passage 46 automatically shuts off.
- backflow of fuel from the injector 13 side to the fuel pump 11 side in the fuel passage 46 is prevented, so that fuel at a predetermined pressure can be maintained at the inlet side of the injector 13. Therefore, even when the engine E is restarted, the injector 13 can immediately inject fuel to improve the startability.
- the rollover shutoff valve 16 is a cylindrical first valve chamber 55 formed in the module body 40 so that the motorcycle M takes an oblique leftward and upward posture in the upright state.
- a cylindrical second valve chamber 56 formed in the module body 40 so as to take an obliquely rightward and upward posture, on the contrary, the upper end of the first valve chamber 55 being the second valve chamber. It is connected to the middle part of 56.
- First and second valve seats 55a, 56a are respectively formed in the upper portions of the first and second valve chambers 55, 56, and the fuel is provided in a lower portion of the first valve seat 55a.
- An inlet hole 44 connected to the discharge pipe 32 of the pump 11 is opened, and the outlet hole 45 is opened above the second valve seat 56a.
- the first and second valve chambers 55, 56 accommodate spherical valve bodies 57, 58 which can be seated on the first and second valve seats 55a, 56a, respectively.
- the lower ends of the second valve chambers 55, 56 are closed by screw plugs 59, 60, respectively.
- the first valve chamber 55 or the second valve chamber 56 should be substantially horizontal.
- the first valve body 57 or the second valve body 58 is seated on the first valve seat 55a or the second valve seat 56a due to its inertia. Block between hole 44 and outlet hole 45.
- the seating state is maintained by the fuel pressure on the inlet hole 44 side. Is done.
- the rollover shutoff valve 16 allows the injection fuel passage 46 to be removed from the injection fuel passage 46. Fuel spill can be prevented.
- the fuel injection module MF has the module body 40 integrally connected to the power housing 26 b of the fuel pump 11 integrally connected to the electric motor 10, and the residual pressure is held in the module body 40.
- a valve 15, an injection pressure regulation valve 14, and a rollover shutoff valve 16 are provided, and an injector holder 47 that holds the injector 13 is integrally formed.
- the rollover shutoff valve 16 is incorporated in the module body 40, when the motorcycle M rolls over, the operation of the engine E can be automatically and promptly stopped. Even if the injector holder 47 is removed from E or the injector holder 47 is removed from the injector 13, the outflow of fuel can be prevented by the rollover shutoff valve 16.
- the fuel pump 11 is integrally connected with a fuel strainer 12 for introducing fuel from the fuel tank T and filtering the fuel.
- a fuel strainer 12 for introducing fuel from the fuel tank T and filtering the fuel.
- the piping between the fuel strainer 12 and the fuel pump 11 can be eliminated, and the fuel strainer 12 filters the fuel upstream of the fuel pump 11. Therefore, an inexpensive low-pressure type is sufficient, contributing to cost reduction for the fuel injection module MF.
- the present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the gist.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003266577A AU2003266577A1 (en) | 2002-09-25 | 2003-09-24 | Fuel injection apparatus module |
BRPI0314773-8A BR0314773B1 (pt) | 2002-09-25 | 2003-09-24 | màdulo de dispositivo de injeÇço de combustÍvel. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002279253A JP2004116359A (ja) | 2002-09-25 | 2002-09-25 | 燃料噴射装置モジュール |
JP2002-279253 | 2002-09-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004029444A1 true WO2004029444A1 (ja) | 2004-04-08 |
WO2004029444B1 WO2004029444B1 (ja) | 2004-06-24 |
Family
ID=32040451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012159 WO2004029444A1 (ja) | 2002-09-25 | 2003-09-24 | 燃料噴射装置モジュール |
Country Status (12)
Country | Link |
---|---|
JP (1) | JP2004116359A (ja) |
KR (1) | KR100710940B1 (ja) |
CN (1) | CN100373042C (ja) |
AR (1) | AR041280A1 (ja) |
AU (1) | AU2003266577A1 (ja) |
BR (1) | BR0314773B1 (ja) |
CO (1) | CO5721029A2 (ja) |
ES (1) | ES2301325B1 (ja) |
IT (1) | ITTO20030710A1 (ja) |
MY (1) | MY141921A (ja) |
TW (1) | TWI237676B (ja) |
WO (1) | WO2004029444A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4736512B2 (ja) * | 2005-04-07 | 2011-07-27 | スズキ株式会社 | 船外機の燃料噴射システム |
JP5329321B2 (ja) * | 2009-07-06 | 2013-10-30 | 愛三工業株式会社 | 燃料噴射装置 |
JP5911047B2 (ja) * | 2011-04-21 | 2016-04-27 | 株式会社ケーヒン | エンジンへの燃料供給装置 |
DE102013209524A1 (de) * | 2013-05-23 | 2014-11-27 | Mahle International Gmbh | Baukastensystem für einen axial durchströmbaren Ventileinsatz |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03117680A (ja) * | 1989-09-30 | 1991-05-20 | Yamaha Motor Co Ltd | 2サイクルエンジンの燃料供給装置 |
JP2000337221A (ja) * | 1999-05-25 | 2000-12-05 | Aisan Ind Co Ltd | 燃料供給装置 |
JP2001018667A (ja) * | 1999-07-07 | 2001-01-23 | Aisan Ind Co Ltd | 燃料タンクモジュール |
JP2002106441A (ja) * | 2000-09-28 | 2002-04-10 | Aisan Ind Co Ltd | 燃料供給装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB105904A (en) * | 1916-03-15 | 1918-03-14 | Charles Henri Claudel | Improvements in Carburetters for Internal Combustion Engines. |
JP3704993B2 (ja) * | 1999-02-22 | 2005-10-12 | スズキ株式会社 | 自動二輪車の燃料ポンプ装置 |
JP2000265922A (ja) * | 1999-03-16 | 2000-09-26 | Honda Motor Co Ltd | 燃料噴射装置 |
JP4130034B2 (ja) * | 1999-03-30 | 2008-08-06 | 本田技研工業株式会社 | 燃料供給装置 |
-
2002
- 2002-09-25 JP JP2002279253A patent/JP2004116359A/ja active Pending
-
2003
- 2003-09-03 TW TW092124315A patent/TWI237676B/zh not_active IP Right Cessation
- 2003-09-17 AR ARP030103365A patent/AR041280A1/es active IP Right Grant
- 2003-09-17 IT IT000710A patent/ITTO20030710A1/it unknown
- 2003-09-18 MY MYPI20033572A patent/MY141921A/en unknown
- 2003-09-24 WO PCT/JP2003/012159 patent/WO2004029444A1/ja active IP Right Grant
- 2003-09-24 CN CNB038228637A patent/CN100373042C/zh not_active Expired - Fee Related
- 2003-09-24 AU AU2003266577A patent/AU2003266577A1/en not_active Abandoned
- 2003-09-24 ES ES200550018A patent/ES2301325B1/es not_active Expired - Fee Related
- 2003-09-24 BR BRPI0314773-8A patent/BR0314773B1/pt not_active IP Right Cessation
- 2003-09-24 KR KR1020057004642A patent/KR100710940B1/ko not_active IP Right Cessation
-
2005
- 2005-03-23 CO CO05026533A patent/CO5721029A2/es active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03117680A (ja) * | 1989-09-30 | 1991-05-20 | Yamaha Motor Co Ltd | 2サイクルエンジンの燃料供給装置 |
JP2000337221A (ja) * | 1999-05-25 | 2000-12-05 | Aisan Ind Co Ltd | 燃料供給装置 |
JP2001018667A (ja) * | 1999-07-07 | 2001-01-23 | Aisan Ind Co Ltd | 燃料タンクモジュール |
JP2002106441A (ja) * | 2000-09-28 | 2002-04-10 | Aisan Ind Co Ltd | 燃料供給装置 |
Also Published As
Publication number | Publication date |
---|---|
CO5721029A2 (es) | 2007-01-31 |
ES2301325B1 (es) | 2009-05-01 |
TWI237676B (en) | 2005-08-11 |
CN100373042C (zh) | 2008-03-05 |
BR0314773B1 (pt) | 2012-06-12 |
KR20050046791A (ko) | 2005-05-18 |
WO2004029444B1 (ja) | 2004-06-24 |
ITTO20030710A1 (it) | 2004-03-26 |
ES2301325A1 (es) | 2008-06-16 |
TW200407500A (en) | 2004-05-16 |
CN1685145A (zh) | 2005-10-19 |
AU2003266577A1 (en) | 2004-04-19 |
BR0314773A (pt) | 2005-07-26 |
MY141921A (en) | 2010-07-30 |
JP2004116359A (ja) | 2004-04-15 |
AR041280A1 (es) | 2005-05-11 |
KR100710940B1 (ko) | 2007-04-24 |
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