WO2006035657A1 - 電磁式燃料噴射弁 - Google Patents
電磁式燃料噴射弁 Download PDFInfo
- Publication number
- WO2006035657A1 WO2006035657A1 PCT/JP2005/017453 JP2005017453W WO2006035657A1 WO 2006035657 A1 WO2006035657 A1 WO 2006035657A1 JP 2005017453 W JP2005017453 W JP 2005017453W WO 2006035657 A1 WO2006035657 A1 WO 2006035657A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fixed core
- resin molding
- molding layer
- resin
- inlet tube
- Prior art date
Links
Classifications
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- 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
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
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- 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
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
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- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
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- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
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- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
Definitions
- the present invention relates to an electromagnetic fuel injection valve, and more particularly, a magnetic cylindrical body constituting a part of a valve housing having a valve seat at a front end portion of a cylindrical fixed core via a coaxial nonmagnetic cylindrical body.
- a flange portion that is coupled to the front portion and protrudes outward in the radial direction of the fixed core, and is formed in a cylindrical shape having an end wall on one end side, and both ends of the magnetic cylindrical body and the flange portion
- a coil assembly surrounding the rear portion of the magnetic cylindrical body, the non-magnetic cylindrical body and the fixed core is housed in a solenoid housing formed of a coil case magnetically coupled to the fixed core.
- a fuel filter is attached to the rear part of the inlet cylinder that is coaxially and integrally connected to the rear end to form a fuel passage, and a power receiving power bra that faces the power receiving side connection terminal connected to the coil of the coil assembly is integrated.
- Made of synthetic resin The present invention relates to an electromagnetic fuel injection valve in which at least a front portion of the inlet tube and the solenoid housing are covered by the resin molding portion.
- Such an electromagnetic fuel injection valve is already known from, for example, Patent Document 1! / Speak.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2004-76700
- the resin molded part of the electromagnetic fuel injection valve disclosed in Patent Document 1 is formed of one type of synthetic resin.
- the resin molded part that covers at least the front part of the solenoid housing and at least the inlet tube has only a function to suppress the radiation of the operating sound that also generates the solenoid housing force. Since the strength of the bra needs to be relatively high, it is also required to have high strength, and the resin molded part has sufficient strength while being able to sufficiently suppress operating noise. Is difficult to form with a single type of synthetic resin as disclosed in Patent Document 1 above.
- the applicant of the present invention has a first resin molding layer whose strength is increased by mixing glass fibers, and a second resin molding layer which suppresses transmission of operating noise by not mixing glass fibers.
- a first resin molding layer whose strength is increased by mixing glass fibers
- a second resin molding layer which suppresses transmission of operating noise by not mixing glass fibers.
- the thickness of the first and second shape layers is set to be larger than the thickness of the inlet tube that is coaxially connected to the rear end of the fixed core near the fixed core. Because the rigidity of the connecting portion of the inlet cylinder to the fixed core is insufficient, it is difficult to say that the impact caused by the opening / closing operation of the valve body in the valve housing is caused through the inlet cylinder. It is transmitted to the resin molding layer, and the fuel distribution pipe connected to the inlet power bra and the inlet cylinder is vibrated by the propagation of the glass fiber in the first resin molding layer, causing the high-frequency operating noise. It has become.
- the present invention has been made in view of intensive circumstances, and can improve the rigidity of the connecting portion of the inlet tube to the fixed core, and can effectively reduce the generation of operating noise, particularly in the high frequency region.
- An object of the present invention is to provide an electromagnetic fuel injection valve.
- the present invention provides a method in which a magnetic cylindrical body constituting a part of a valve housing having a valve seat at a front end portion is disposed in front of a cylindrical fixed core via a coaxial nonmagnetic cylindrical body. And a flange portion projecting radially outward from the fixed core, and a cylindrical portion having an end wall at one end and both ends of the magnetic cylinder and the flange.
- a solenoid housing composed of a coil case that is magnetically coupled to a portion, a coil assembly that surrounds the rear portion of the magnetic cylinder, the nonmagnetic cylinder, and the fixed core is housed, and the fixed core
- a fuel filter is attached to the rear part of the inlet cylinder that is coaxially and integrally connected to the rear end to form a fuel passage, and a power receiving force bra that faces the power receiving side connection terminal that is connected to the coil of the coil assembly is integrated.
- the resin molding portion constitutes a main portion of a force bra that forms a skeleton portion of the power receiving power bra
- the first resin molding layer formed of a synthetic resin mixed with glass fibers and the synthetic resin excluding glass fibers so as to cover the first resin molding layer.
- a second resin molding layer formed of oil, and the portion of the inlet tube on the fixed core side has the thickness of the first resin molding layer as tl and the thickness of the second resin molding layer.
- the first feature is that tl ⁇ t3 ⁇ t2 where t2 and the wall thickness of the inlet tube are t3.
- the present invention includes a front half portion of the inlet tube on the fixed core side covered with the first resin molding layer, and the second resin molding layer includes:
- the second feature is that it is formed so as to directly cover the inlet tube behind the portion covered with the first resin molding layer.
- the present invention provides a curved surface that is recessed inwardly in the flange portion at the rear end of the fixed core and the connecting portion of the inlet tube.
- the third feature is the formation of
- the fixed core, the flange portion, and the inlet tube are integrally ground so that any cross section in the axial direction is circular.
- the fourth feature is that it is formed by processing.
- the resin-molded part has a two-layer structure including a first resin-molded layer and a second resin-molded layer, and is a synthetic material mixed with glass fibers. Since the first resin molding layer is made of resin, the reliability of the electrical connection can be ensured by forming the main part of the power bra that forms the skeleton of the power receiving power bra with the first resin molding layer. Since the second resin molding layer that covers the first resin molding layer is made of synthetic resin that eliminates glass fiber mixing, it is possible to give strength to the resin molding part and to generate operating noise. Can be effectively suppressed.
- the thickness of the inlet tube is larger than the thickness of the first resin molding layer in the portion of the inlet tube on the fixed core side, the rigidity of the connecting portion of the inlet tube to the fixed core is increased, and the thickness from the inlet tube is increased.
- vibration transmission by the glass fiber contained in the first resin molding layer can be suppressed by reducing the thickness of the first resin molding layer.
- Generation of operating noise can be effectively suppressed particularly in a high frequency region. Since the thickness of the second resin molding layer that does not contain glass fiber is equal to or greater than the thickness of the inlet cylinder larger than the thickness of the first resin molding layer, the second resin molding layer vibrates. Can be effectively absorbed and generation of operating noise can be further suppressed.
- the second feature of the present invention by reducing the portion covered with the first resin molding layer containing glass fiber as much as possible, the propagation of vibration is suppressed and the generation of operating noise is further reduced. It can be effectively suppressed.
- the rigidity of the connecting portion of the inlet cylinder to the fixed core is further increased, and the axial direction of the fuel injection valve can be shortened, while (1) Propagation of vibration to the resin molding layer side can be suppressed to a smaller extent, and generation of operating noise in the high frequency region can be suppressed more effectively.
- the rigidity of the part can be further increased, and both the force and the cross section in the axial direction can be improved. Since it is circular, no additional work is required, which is advantageous in terms of cost.
- FIG. 1 is a longitudinal sectional view of an electromagnetic injection valve. (First example)
- FIG. 2 is a graph showing the relationship between bending strength and operating sound pressure peak of liquid crystal polymer and thermoplastic polyester elastomer mixed with glass fiber. (First example)
- FIG. 3 is a diagram showing a change in sound pressure with frequency. (First example)
- an electromagnetic fuel injection valve for injecting fuel into an engine (not shown) is splashed in a valve housing 9 having a valve seat 8 at a front end in a direction in which the valve seat 8 is seated.
- the valve operating part 5 in which the valve body 10 to be energized is housed, and the coil assembly 11 capable of exerting electromagnetic force for driving the valve body 10 on the side to be separated from the valve seat 8 are the valve housing 9
- the solenoid part 6 accommodated in the solenoid 12 and the wing 12 connected in series, and the power receiving force bra 40 facing the power receiving side connection terminals 38 connected to the coil 29 of the coil assembly 11 are integrally provided at least as described above.
- the valve housing 9 includes a magnetic cylinder 13 formed of a magnetic metal, and a valve seat member 14 that is liquid-tightly coupled to the front end of the magnetic cylinder 13.
- the valve seat member 14 is welded to the magnetic cylindrical body 13 with its rear end fitted to the front end of the magnetic cylindrical body 13, and the valve seat member 14 opens to the front end surface thereof.
- a fuel outlet hole 15, a tapered valve seat 8 connected to the inner end of the fuel outlet hole 15, and a guide hole 16 connected to the rear end large diameter portion of the valve seat 8 are provided coaxially.
- a steel plate injector plate 18 having a plurality of fuel injection holes 17 leading to the fuel outlet hole 15 is welded to the front end of the valve seat member 14 in a liquid-tight manner.
- a movable core 20 constituting a part of the solenoid part 6 slides in the rear part in the valve housing 9.
- a valve body 10 that can be seated on the valve seat 8 and close the fuel outlet hole 15 is formed in a body.
- a through hole 22 communicating with the inside of the valve housing 9 is formed coaxially with a bottomed shape with the front end closed.
- the solenoid unit 6 exhibits a spring force that urges the movable core 20, the cylindrical fixed core 23 facing the movable core 20, and the side that separates the movable core 20 from the fixed core 23.
- the return spring 24 and the spring force of the return spring 24 are piled up to surround the rear of the valve housing 9 and the fixed core 23 while enabling the electromagnetic force to attract the movable core 20 to the fixed core 23 side.
- a coil assembly 11 to be arranged and a solenoid housing 12 surrounding the coil assembly 11 so that the front end portion is connected to the valve housing 9 are provided.
- the rear end of the magnetic cylinder 13 in the valve housing 9 is coaxially coupled to the front portion of the fixed core 23 via a nonmagnetic cylinder 25 formed of a nonmagnetic metal such as stainless steel.
- the rear end of the magnetic cylinder 13 is butt welded to the front end of the non-magnetic cylinder 25, and the rear end of the non-magnetic cylinder 25 fits the front part of the fixed core 23 to the non-magnetic cylinder 25. It is welded to the fixed core 23 in the bent state.
- a cylindrical retainer 26 is fitted to the fixed core 23 and fixed by caulking, and the return spring 24 is interposed between the retainer 26 and the movable core 20.
- a ring-shaped stopper 27 made of a non-magnetic material that prevents the movable core 20 from coming into direct contact with the fixed core 23 from the rear end surface of the movable core 20. It is fitted and fixed so that it protrudes slightly on the 23 side.
- the coil assembly 11 further includes a coil 29 mounted on a bobbin 28 that surrounds the rear portion of the valve housing 9, the nonmagnetic cylindrical body 25, and the fixed core 23.
- the solenoid housing 12 is formed of a magnetic metal having a circular end wall 31a facing one end of the valve operating portion 5 side of the coil assembly 11 at one end and surrounding the coil assembly 11.
- the flange portion 23a is magnetically coupled to the other end portion of the coil case 31.
- the magnetic force in the valve housing 9 is provided on the inner periphery of the end wall 3 la in the coil case 31.
- a fitting tube portion 31b for fitting the cylindrical body 13 is provided coaxially, and the solenoid housing 12 is connected to the valve housing 9 by fitting the valve housing 9 to the fitting tube portion 3 lb.
- One end of the coil case 31 is magnetically coupled to the magnetic cylinder 13.
- a cylindrical inlet tube 32 is connected to the rear end of the fixed core 23 in a coaxial manner, and a fuel filter 33 is attached to the rear portion of the inlet tube 32.
- the inlet cylinder 32, the retainer 26, and the fixed core 23 are provided with a fuel passage 34 that communicates with the through hole 21 of the movable core 20 coaxially.
- the resin molding part 7 is not only the solenoid housing 12 and the coil assembly 11 of the solenoid part 6, but also a part of the valve housing 9 and the gap between the solenoid housing 12 and the coil assembly 11 and At least the front portion of the inlet cylinder 32 is embedded, and the terminal boss portion 36 formed integrally with the bobbin 28 of the coil assembly 11 is solenoidally installed in the coil case 31 of the solenoid housing 12.
- a notch 35 is provided for placement outside the nosing 12.
- the resin molding portion 7 is provided with a power receiving force bra 40 that forms a recess 39 that faces the power receiving side connection terminals 38 that are connected to both ends of the coil 29 in the coil assembly 11.
- the base end of the power receiving side connection terminal 38 is embedded in the terminal boss portion 36, and the coil end 29a 'of the coil 29 is electrodeposited on the power receiving side connection terminal 38. It is.
- the resin molding part 7 includes a first resin molding layer 41 that forms a force bra main part 40a that forms a skeleton of the power receiving force bra 40, and an intermediate part force of the power receiving force bra 40 on the front end side.
- the power receiving force bra 40 is formed by two-layer molding with the second resin molding layer 42 covering the first resin molding layer 41 so that the outer periphery of the bra 40 is exposed. All of the rear part of the valve housing 9 and a part of the inlet cylinder 32 are covered with the first resin molding layer 41, and the second resin molding layer 42 covering the first resin molding layer 41 is composed of the power receiving force bra 40.
- the intermediate part force also exposes the outer surface of the first resin molding layer 41 on the tip side and slightly exposes the front end of the first resin molding layer 41.
- the front half of the inlet tube 32 on the fixed core 23 side is covered with the first resin molding layer 42, whereas the second resin molding layer 42 is more than the portion covered with the first resin molding layer 41. It is formed so as to directly cover the inlet cylinder 32 at the rear.
- an annular protrusion 45 that protrudes into the first resin molding layer 41 is provided on the outer surface of the inlet cylinder 32 near the fixed core 23, and the second protrusion is formed on the outer surface of the inlet cylinder 32 near the rear.
- An annular groove 46 that engages the end of the resin molding layer 42 is provided.
- the first and second resin molding layers 41 and 42 are formed of different synthetic resins, and the first resin molding layer 41 is formed on a synthetic resin mixed with glass fibers such as a liquid crystal polymer.
- the second resin molding layer 42 is formed of a synthetic resin having a bending strength smaller than that of the first resin molding layer 41.
- the second resin molding layer 42 is formed of a liquid crystal polymer in which glass fibers are mixed, and the second resin molding layer 42 is a synthetic resin excluding the mixing of glass fibers, for example, a thermoplastic polyester elastomer which is a trade name Hytrel (US DuPont). One is formed.
- the relationship between the bending strength when the entire resin-molded part 7 is formed with a liquid crystal polymer mixed with 35% glass fiber, for example, and the operating sound pressure peak generated from the resin-molded part 7 is shown in FIG.
- the liquid crystal polymer has a function of relatively restraining transmission of operating sound and is also highly rigid.
- the entire resin molded part 7 is formed with a thermoplastic polyester elastomer that eliminates glass fiber contamination, the excellent flexibility of the thermoplastic polyester elastomer effectively suppresses the generation of operating noise.
- the operating sound pressure peak can be kept low although the bending strength is lower than that of the liquid crystal polymer.
- the thickness of the first resin molding layer 41 is tl at the portion on the fixed core 23 side of the inlet tube 32, in this embodiment, on the portion closer to the fixed core 23 than the annular protrusion 45.
- the thicknesses tl, t2, and t3 are set so that tl ⁇ t3 ⁇ t2 where t2 is the thickness of the second resin molding layer 42 and t3 is the thickness of the inlet tube 32.
- the flange portion 23a at the rear end of the fixed core 23 and the connecting portion of the inlet tube 32 are formed with a curved surface 47 that is recessed inward, and the fixed core 23, the flange portion 23, and the inlet
- the cylinder 32 is formed by integral grinding so that any cross section in the axial direction is circular.
- the resin-molded portion 7 covers at least the solenoid portion 6 and constitutes a force bra main portion 40a that forms the skeleton of the power receiving force bra 40.
- the first resin molding layer 41 formed of a synthetic resin containing glass fiber and the first resin molding layer formed of a synthetic resin not containing glass fiber and the middle side of the power receiving power bra 40 are the first resin molding layer.
- the second resin molding layer 42 covering the first resin molding layer 41 so that 41 is exposed is formed by two-layer molding.
- the connecting portion of the coil 29 of the coil assembly 11 and the power receiving side connection terminal 38 is covered with the first resin molding layer 41 and the force bra main portion 40a forming the framework of the power receiving force bra 40 is covered with the first resin.
- the resin molded portion 7 can be given strength sufficient to ensure the reliability of the electrical connection portion.
- the second resin molding layer 42 covering the first resin molding layer 41 is formed of a synthetic resin that does not contain glass fibers, it is possible to effectively suppress the generation of operating noise, and fuel. Compared to the case where the entire injection valve is covered with a soundproof cover, the entire electromagnetic fuel injection valve can be made compact.
- the first resin molding layer 41 provides the strength required for the power receiving force bra 40, while the second resin molding layer 42 provides power receiving power. Generation of operating noise from the bra 40 can be effectively reduced.
- the thickness t3 of the inlet cylinder 32 is larger than the thickness tl of the first resin molding layer 41.
- the vibration transmission by the glass fibers contained in the first resin molding layer 41 is the first resin molding. It can be suppressed by reducing the thickness tl of the layer 41, and the generation of operating noise can be effectively suppressed particularly in the high frequency region.
- the second resin molding layer 42 not containing glass fiber is equal to or greater than the wall thickness t3 of the inlet tube 32 larger than the wall thickness of the first resin molding layer tl, the second resin molding The layer 42 can effectively absorb vibrations and further suppress the generation of operating noise.
- the flange portion 23a at the rear end of the fixed core 23 and the connecting portion of the inlet tube 32 are formed with a curved surface 47 that is recessed inward, the connection of the inlet tube 32 to the fixed core 23 is formed.
- the rigidity of the installation is further increased and the axial direction of the fuel injection valve can be shortened, while the propagation of vibration from the inlet cylinder 32 to the first resin-forming layer 41 side is further suppressed, particularly in the high-frequency region. It is possible to more effectively suppress the generation of operating noise.
- the connecting portion to the flange portion 23 of the inlet cylinder 32 is a right angle, and the wall thickness t3 of the inlet cylinder 32
- the change in sound pressure due to the frequency when the first resin molding layer 41 is smaller than the wall thickness tl is indicated by A in FIG. 3, and according to the present invention, the curved surface is connected to the flange 23 of the inlet tube 32 according to the present invention. 47 is formed, and the wall thickness t3 of the inlet cylinder 32 is larger than the wall thickness tl of the first resin molding layer 41.
- the wall thickness t2 of the second resin molding layer 42 is greater than the wall thickness t3 of the inlet cylinder 32.
- the change in the sound pressure due to the frequency at this time is shown by B in FIG.
- the wall thickness t3 of the inlet cylinder 32 is made larger than the wall thickness tl of the first resin molding layer 41, and the flange portion 23a and the inlet It is clear that the sound pressure level can be reduced in the high frequency region by forming the curved surface 47 in the continuous portion of the cylinder 32.
- the front half of the inlet cylinder 32 on the fixed core 23 side is covered with the first resin molding layer 42, whereas the second resin molding layer 42 is a part covered with the first resin molding layer 41. Since it is formed so as to directly cover the inlet cylinder 32 at the rear, the propagation of vibration is suppressed by minimizing the portion covered with the first resin molding layer 41 containing glass fiber, and the generation of operating noise is reduced. It can be suppressed more effectively.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05785402A EP1795740B1 (en) | 2004-09-27 | 2005-09-22 | Solenoid fuel injection valve |
US11/659,134 US7520449B2 (en) | 2004-09-27 | 2005-09-22 | Electromagnetic fuel injection valve |
BRPI0516047-2A BRPI0516047B1 (pt) | 2004-09-27 | 2005-09-22 | Electromagnetic fuel injection valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-280182 | 2004-09-27 | ||
JP2004280182A JP3955055B2 (ja) | 2004-09-27 | 2004-09-27 | 電磁式燃料噴射弁 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006035657A1 true WO2006035657A1 (ja) | 2006-04-06 |
Family
ID=36118805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/017453 WO2006035657A1 (ja) | 2004-09-27 | 2005-09-22 | 電磁式燃料噴射弁 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7520449B2 (ja) |
EP (1) | EP1795740B1 (ja) |
JP (1) | JP3955055B2 (ja) |
CN (1) | CN100489297C (ja) |
BR (1) | BRPI0516047B1 (ja) |
WO (1) | WO2006035657A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006035656A1 (ja) * | 2004-09-27 | 2006-04-06 | Keihin Corporation | 電磁式燃料噴射弁 |
JP4948295B2 (ja) * | 2007-07-06 | 2012-06-06 | 愛三工業株式会社 | 燃料噴射弁 |
DE102010031277A1 (de) | 2010-07-13 | 2012-01-19 | Robert Bosch Gmbh | Kraftstoffeinspritzventil mit reduzierter Bauteileanzahl |
JP5303017B2 (ja) | 2011-09-22 | 2013-10-02 | 三菱電機株式会社 | 燃料噴射弁およびその製造方法 |
US9330863B2 (en) * | 2014-09-24 | 2016-05-03 | Visteon Global Technologies, Inc. | Apparatus for and method of reducing rotary knob noise |
WO2017175611A1 (ja) * | 2016-04-08 | 2017-10-12 | イーグル工業株式会社 | ソレノイド |
EP3261102A1 (en) | 2016-06-23 | 2017-12-27 | Rain Bird Corporation | Universal solenoid |
CN106151533A (zh) * | 2016-07-01 | 2016-11-23 | 济南海能仪器股份有限公司 | 控制阀 |
US10980120B2 (en) | 2017-06-15 | 2021-04-13 | Rain Bird Corporation | Compact printed circuit board |
US11503782B2 (en) | 2018-04-11 | 2022-11-22 | Rain Bird Corporation | Smart drip irrigation emitter |
CN209164045U (zh) * | 2018-11-19 | 2019-07-26 | 浙江锐韦机电科技有限公司 | 泵阀一体机构 |
US11721465B2 (en) | 2020-04-24 | 2023-08-08 | Rain Bird Corporation | Solenoid apparatus and methods of assembly |
GB2602649B (en) * | 2021-01-07 | 2023-01-04 | Delphi Automotive Systems Lux | Fuel injector |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02241971A (ja) * | 1989-03-14 | 1990-09-26 | Honda Motor Co Ltd | 内燃機関用燃料噴射装置 |
JPH05503976A (ja) * | 1990-02-03 | 1993-06-24 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電磁作動式の弁 |
JP2004293313A (ja) * | 2003-03-25 | 2004-10-21 | Hitachi Unisia Automotive Ltd | 燃料噴射弁 |
JP2005256640A (ja) * | 2004-03-09 | 2005-09-22 | Keihin Corp | 電磁式燃料噴射弁 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3825134A1 (de) * | 1988-07-23 | 1990-01-25 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares ventil und verfahren zur herstellung |
DE4003227C1 (en) * | 1990-02-03 | 1991-01-03 | Robert Bosch Gmbh, 7000 Stuttgart, De | EM fuel injection valve for IC engine - has two overlapping parts welded together as narrowed section of one part |
US5494224A (en) * | 1994-08-18 | 1996-02-27 | Siemens Automotive L.P. | Flow area armature for fuel injector |
DE19654322C2 (de) * | 1996-12-24 | 1999-12-23 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil |
US6511004B2 (en) * | 2000-01-19 | 2003-01-28 | Delphi Technologies, Inc. | Fuel injector cover |
JP2004076700A (ja) | 2002-08-22 | 2004-03-11 | Keihin Corp | 電磁式燃料噴射弁 |
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2004
- 2004-09-27 JP JP2004280182A patent/JP3955055B2/ja active Active
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2005
- 2005-09-22 US US11/659,134 patent/US7520449B2/en not_active Expired - Fee Related
- 2005-09-22 WO PCT/JP2005/017453 patent/WO2006035657A1/ja active Application Filing
- 2005-09-22 EP EP05785402A patent/EP1795740B1/en not_active Expired - Fee Related
- 2005-09-22 BR BRPI0516047-2A patent/BRPI0516047B1/pt not_active IP Right Cessation
- 2005-09-22 CN CNB2005800326611A patent/CN100489297C/zh active Active
Patent Citations (4)
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JPH02241971A (ja) * | 1989-03-14 | 1990-09-26 | Honda Motor Co Ltd | 内燃機関用燃料噴射装置 |
JPH05503976A (ja) * | 1990-02-03 | 1993-06-24 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電磁作動式の弁 |
JP2004293313A (ja) * | 2003-03-25 | 2004-10-21 | Hitachi Unisia Automotive Ltd | 燃料噴射弁 |
JP2005256640A (ja) * | 2004-03-09 | 2005-09-22 | Keihin Corp | 電磁式燃料噴射弁 |
Non-Patent Citations (1)
Title |
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Also Published As
Publication number | Publication date |
---|---|
EP1795740B1 (en) | 2011-10-05 |
JP2006090277A (ja) | 2006-04-06 |
US20070251505A1 (en) | 2007-11-01 |
US7520449B2 (en) | 2009-04-21 |
CN101027475A (zh) | 2007-08-29 |
CN100489297C (zh) | 2009-05-20 |
BRPI0516047A (pt) | 2008-08-19 |
EP1795740A4 (en) | 2010-11-24 |
EP1795740A1 (en) | 2007-06-13 |
BRPI0516047B1 (pt) | 2018-02-06 |
JP3955055B2 (ja) | 2007-08-08 |
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