CN101027474A - Solenoid fuel injection valve - Google Patents
Solenoid fuel injection valve Download PDFInfo
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- CN101027474A CN101027474A CN 200580032654 CN200580032654A CN101027474A CN 101027474 A CN101027474 A CN 101027474A CN 200580032654 CN200580032654 CN 200580032654 CN 200580032654 A CN200580032654 A CN 200580032654A CN 101027474 A CN101027474 A CN 101027474A
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- ester moulding
- moulding layer
- coupler
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- Magnetically Actuated Valves (AREA)
Abstract
In an electromagnetic fuel injection valve in which a first resin-molded layer that is made of a synthetic resin, covers a solenoid section, and forms a coupler main portion that defines a framework of a power-receiving coupler is covered by a second resin-molded layer made of a synthetic resin that is different from that of the first resin-molded layer so that an outer face of the coupler main portion is exposed from a middle part up to the extremity of the coupler main portion, an endless engagement groove (45) is provided on the outer periphery of the middle part of the coupler main portion (40a) of the first resin-molded layer (41), the second resin-molded layer (42) engaging with the endless engagement groove (45), and an extending portion (42b) extending further outward than the engagement groove (45) is formed in the second resin-molded layer (42) so that the extending portion (42b) makes contact with an outer face of the coupler main portion (40a) when in a non-engaged state and covers the coupler main portion (40a). This prevents a gap or a bulge from occurring in a boundary section between the two resin-molded layers, thus improving the connectivity of a power-supplying coupler to a power-receiving coupler and the merchantability.
Description
Technical field
The present invention relates to electro-magneto fuel injector, this electro-magneto fuel injector has: valve events portion, and it contains valve body in front end has the valve casing of valve seat, and this valve body is by to the direction elastic force-applying that is seated at described valve seat; Solenoid part, wherein can produce coil assembly body to the electromagnetic force of the described valve body of a side drive that leaves described valve seat, be housed in the helical shell that is provided with continuously with described valve casing and rearward extends; And resin formation part, it forms by the 1st ester moulding layer that utilizes the 2nd ester moulding layer coverage of synthetic resin system, described the 1st ester moulding layer covers this solenoid part, and be formed for constituting the Coupler major component that is subjected to electricity to use the framework of Coupler, this is subjected to electricity to face the electric side splicing ear that is subjected to that is connected with the coil of described coil assembly body with Coupler, described the 2nd ester moulding layer utilizes the synthetic resin different with the 1st ester moulding layer to form, and exposes the outer surface of Coupler major component from the intermediate portion of described Coupler major component in forward end.
Background technique
Utilize to have integratedly to be subjected to the electro-magneto fuel injector of electricity, for example in patent documentation 1 grade, disclose with the resin formation part covering solenoid part of Coupler.
Patent documentation 1: TOHKEMY 2004-76700 communique
But the resin formation part of above-mentioned patent documentation 1 disclosed electro-magneto fuel injector utilizes a kind of synthetic resin to form resin formation part.Like this, to covering the resin formation part of solenoid part, the motion and sound that not only requires to be suppressed at the solenoid part generation discharges to the outside, and in order to improve the reliability of electrical connection section, be subjected to electricity to need higher intensity with Coupler, so also require high strength, still, utilize the synthetic resin of above-mentioned patent documentation 1 disclosed single type to form fully to suppress motion and sound and resin formation part with sufficient intensity is the comparison difficulty.
Therefore, the applicant has proposed a kind of electro-magneto fuel injector (Japanese Patent Application 2004-65892 communique), utilize the 1st ester moulding layer and this two-layer formation of the 2nd ester moulding layer to be subjected to the electricity Coupler, described the 1st ester moulding layer is formed for constituting the Coupler major component that is subjected to electricity to use the framework of Coupler, described the 2nd ester moulding layer utilizes flexural strength to form less than the material of the 1st ester moulding layer, and cover the 1st ester moulding layer, and expose the 1st ester moulding layer from being subjected to electricity with the intermediate portion of Coupler in forward end, make thus to be subjected to electricity to have the intensity of the reliability that can guarantee electrical connection section, and can effectively suppress the generation of motion and sound with Coupler.
But, be shaped to constitute at bilayer and be subjected to electricity when using Coupler by this synthetic resin, because the 2nd ester moulding layer shrinks because of the cooling after being shaped, make and on the outer end of the 2nd ester moulding layer and the 1st ester moulding layer, produce gap or projection, cause powering and reduce, cause commodity to reduce with Coupler and the connectivity that is subjected to electricity with Coupler.
Summary of the invention
The present invention In view of the foregoing finishes, its purpose is, a kind of electro-magneto fuel injector is provided, be shaped to constitute at bilayer and be subjected to electricity when using Coupler by synthetic resin, prevent boundary portion generation gap and projection at the ester moulding layer of bilayer, the raising power supply is with Coupler and be subjected to the electricity connectivity and the commodity of Coupler.
In order to achieve the above object, a kind of electro-magneto fuel injector is provided in accordance with a first feature of the invention, this injection valve has: valve events portion, and it contains valve body in front end has the valve casing of valve seat, and this valve body is by to the direction elastic force-applying that is seated at described valve seat; Solenoid part, wherein can produce coil assembly body to the electromagnetic force of the described valve body of a side drive that leaves described valve seat, be housed in the helical shell that is provided with continuously with described valve casing; And resin formation part, it forms by the 1st ester moulding layer that utilizes the 2nd ester moulding layer coverage of synthetic resin system, described the 1st ester moulding layer covers this solenoid part, and be formed for constituting the Coupler major component that is subjected to electricity to use the framework of Coupler, this is subjected to electricity to face the electric side splicing ear that is subjected to that is connected with the coil of described coil assembly body with Coupler, described the 2nd ester moulding layer utilizes the synthetic resin different with the 1st ester moulding layer to form, and the outer surface that exposes the Coupler major component in forward end from the intermediate portion of described Coupler major component, described electro-magneto fuel injector is characterised in that, the intermediate portion periphery of the Coupler major component that has at described the 1st ester moulding layer is provided with the circulation shape engagement groove that is used to engage the 2nd ester moulding layer, be formed with the extension part that extends to the described engagement groove outside on the 2nd ester moulding layer, this extension part contacts the outer surface of described Coupler major component and covers this Coupler major component with non-fastening state.
And, second feature according to the present invention provides a kind of electro-magneto fuel injector, it is characterized in that, on the architecture basics of described first feature, front end periphery at described the 1st ester moulding layer is provided with the 2nd engagement groove, its front-end edge that forms the circulation shape and engage the 2nd ester moulding layer is week entirely, in part along the corresponding described coil assembly body of the axial direction of described valve casing, periphery at the 1st ester moulding layer is provided with the engagement portion, it is used to limit the 2nd ester moulding course rear side displacement, and engages the interior thorough week of the 2nd ester moulding layer.
In accordance with a first feature of the invention, it is double-deck when cooled off after shaping with Coupler by electricity that the 1st ester moulding layer that the synthetic resin that is differed from one another by utilization forms and the 2nd ester moulding layer constitute, will act on the inboard that is fastened on the part on the 2nd engagement groove in the 2nd ester moulding layer to the shrinking stress that the solenoid shell-side shrinks, in the part of corresponding engagement groove, on the 2nd ester moulding layer, produce reaction force thus towards a side that breaks away from engagement groove.And, resist described reaction force and act on the extension part that extends to the engagement groove outside in the 2nd ester moulding layer towards the shrinking stress of the outer circumferential face side of Coupler major component, size by the described extension part of suitable setting, can make shrinking stress towards the outer circumferential face side of Coupler major component greater than described reaction force, its result, can prevent because the contraction in the 2nd ester moulding layer when cooling and produce gap and projection in the be shaped boundary portion of layer of double-layer resin, can improve power supply with Coupler be subjected to the electricity connectivity and the commodity of Coupler.
And, according to second feature of the present invention, when the double-deck resin formation part that is made of the 1st ester moulding layer and the 2nd ester moulding layer cools off after shaping, the 2nd ester moulding layer shrinks so that its front-end edge breaks away from from the 2nd engagement groove of the front end of the 1st ester moulding layer, but be located at the circulation shape engagement portion that is used to limit the 2nd ester moulding course rear side displacement of the periphery of the 1st ester moulding layer, be configured in the part of corresponding coil assembly body, so the distance between the 2nd engagement groove and the described engagement portion is shorter, promptly will shrink in the 2nd ester moulding layer so that its front-end edge is shorter from the length of the part of the 2nd engagement groove disengaging of the 1st ester moulding layer.Therefore, even producing, shrinks on the 2nd ester moulding layer, the front-end edge of the 2nd ester moulding layer is also minimum towards the displacement amount of a side that breaks away from the 2nd engagement groove, the front-end edge that can suppress the 2nd ester moulding layer floats from the front end of the 1st ester moulding layer, prevent that moisture etc. from entering between the front end of two ester moulding layers, improve commodity.
Description of drawings
Fig. 1 is the sectional arrangement drawing of the 1st embodiment's electro-magneto fuel injector.(the 1st embodiment)
Fig. 2 is the anterior amplification profile of electro-magneto fuel injector.(the 1st embodiment)
Fig. 3 is subjected to the amplification profile of electricity with Coupler.(the 1st embodiment)
Fig. 4 is used to illustrate in correspondence be subjected to electricity to use the partial action of Coupler in the figure of the stress of the 2nd ester moulding layer.(the 1st embodiment)
Fig. 5 is the anterior amplification profile of the 2nd embodiment's electro-magneto fuel injector.(the 2nd embodiment)
Fig. 6 is the anterior amplification profile of the 3rd embodiment's electro-magneto fuel injector.(the 3rd embodiment)
Symbol description
5 valve events portions;
6 solenoid parts;
7 resin formation parts;
8 valve seats;
9 valve casings;
10 valve bodies;
11 coil assembly bodies;
12 helical shells;
29 coils;
38 are subjected to electric side splicing ear;
40 are subjected to the electricity Coupler;
40a Coupler major component;
41 the 1st ester moulding layers;
42 the 2nd ester moulding layers;
The front-end edge of 42a the 2nd ester moulding layer;
The 42b extension part;
43 the 2nd engagement grooves;
45 engagement grooves;
44 engaging teats as the engagement portion;
48 engaging recessed parts as the engagement portion;
49 engaging end differences as the engagement portion.
Embodiment
Below, the embodiments of the invention shown in illustrate embodiments of the present invention with reference to the accompanying drawings.
Embodiment 1
With reference to Fig. 1～Fig. 4 the 1st embodiment of the present invention is described, at first, in Fig. 1, be used for having: valve events portion 5 to the electro-magneto fuel injector of not shown engine burner oil, it accommodates valve body 10 in front end has the valve casing 9 of valve seat 8, this valve body 10 is by to the direction elastic force-applying that is seated at described valve seat 8; Solenoid part 6, wherein can produce coil assembly body 11 to the electromagnetic force of the described valve body 10 of a side drive that leaves from described valve seat 8, be housed in the helical shells 12 that are provided with continuously with described valve casing 9; Plastic resin formation part 7, it has integratedly and is subjected to electricity with Coupler 40, and covers described solenoid part 6 at least, and the described electricity that is subjected to is faced the electric side splicing ear 38 that is subjected to that is connected with the coil 29 of described coil assembly body 11 with Coupler 40 ...
Simultaneously with reference to Fig. 2, valve casing 9 by magnetic cylindrical body 13 that utilizes magnetic metal to form and the close property of liquid be bonded on the front end of this magnetic cylindrical body 13 valve base part 14 constitute.Valve base part 14 with will be thereafter the state that is entrenched on the front end of magnetic cylindrical body 13 of end be welded on the magnetic cylindrical body 13, on this valve base part 14, be provided with fuel outlet hole 15, the taper valve seat 8 that is connected with the inner in this fuel outlet hole 15 and the pilot hole 16 that is connected with the rear end large-diameter portion of this valve seat 8 of its front-end face opening coaxially.And at the jet tray 18 of the complete all welding steel systems in the front end liquid of valve base part 14 close property ground, this jet tray 18 has a plurality of fuel jet orifices 17 by fuel outlet hole 15 ...
Can chimericly slidably there be the movable core 20 of a part that constitutes solenoid part 6 at rear portion in valve casing 9, front end at the valve shaft 21 that is connected with these movable core 20 one has formed valve body 10, and this valve body 10 can be landed on the described valve seat 8 with sealing fuel outlet hole 15.Be formed with through hole 22 coaxially on movable core 20, valve shaft 21 and valve body 10, this through hole 22 is by in the valve casing 9, and form the front end sealing end shape arranged.
The non-magnetic cylinder body 25 that the rear end of the magnetic cylindrical body 13 in the valve casing 9 forms via nonmagnetic metal such as utilizing stainless steel, be bonded on the front end of described fixed core 23 and coaxial with it, the rear end butt welding of magnetic cylindrical body 13 is connected on the front end of non-magnetic cylinder body 25, and the rear end of non-magnetic cylinder body 25 is welded on the fixed core 23 with the state that the front end with fixed core 23 is entrenched on the non-magnetic cylinder body 25.
Be provided with continuously coaxially integratedly as inlet tube 32 cylindraceous in the rear end of fixed core 23, fuel filter 33 be installed at the rear portion of this inlet tube 32.And, on inlet tube 32, guard ring 26 and fixed core 23, be provided with fuel channel 34 coaxially by the through hole 21 of movable core 20.
On described resin formation part 7, be provided with integratedly and be subjected to electricity Coupler 40, this is subjected to electricity to form recess 39 with Coupler 40, the be subjected to electric side splicing ear 38 of this recess 39 in the face of being connected with the two ends of coil 29 in the described coil assembly body 11 ... describedly be subjected to electric side splicing ear 38 ... cardinal extremity be embedded in the described terminal protuberance 36 the coil end 29a of described coil 29 ... plating is being subjected to electric side splicing ear 38 ... on.
In addition, resin formation part 7 utilizes the 1st ester moulding layer 41 and the 2nd ester moulding layer 42 bilayer to be shaped and constitutes, described the 1st ester moulding layer 41 is formed for constituting the described Coupler major component 40a that is subjected to electricity with the framework of Coupler 40, described the 2nd ester moulding layer 42 covers the 1st ester moulding layer 41, and expose the periphery that is subjected to electricity to use Coupler 40 from the described electricity that is subjected to the intermediate portion of Coupler 40 in forward end, in the present embodiment, solenoid part 6 is whole, the part of the rear portion of valve casing 9 and inlet tube 32 is covered by the 1st ester moulding layer 41, the 2nd ester moulding layer 42 that covers the 1st ester moulding layer 41 exposes the outer surface of the 1st ester moulding layer 41 in forward end from being subjected to electricity with the intermediate portion of Coupler 40, the front end of the 1st ester moulding layer 41 is exposed a little, and cover the rear portion of the 1st ester moulding layer 41 fully, cover the intermediate portion of inlet tube 22 simultaneously always.
And, the the 1st and the 2nd ester moulding layer 41,42 utilizes the synthetic resin that differs from one another to form, the 1st ester moulding layer 41 utilizes the bigger synthetic resin of flexural strength to form, and the 2nd ester moulding layer 42 utilizes flexural strength to form less than the synthetic resin of the 1st ester moulding layer 41, the 1st ester moulding layer 41 for example utilizes the liquid-crystalline polymer of having sneaked into glass fibre to form, and it is that Ha イ ト レ Le (du pont company) forms that thermoplastic polyester elastomer, for example trade name of sneaking into glass fibre have been got rid of in 42 utilization of the 2nd ester moulding layer.
Be used to form the liquid-crystalline polymer of sneaking into glass fibre of the 1st ester moulding layer 41, have the effect of the transmission that relatively suppresses motion and sound, and rigidity be big.To this, when utilization has been got rid of the thermoplastic polyester elastomer of sneaking into glass fibre and formed the 2nd ester moulding layer 41, can suppress the action peak sound pressure lower.
Simultaneously with reference to Fig. 3, the forward end of the 1st ester moulding layer 41 is not covered by the 2nd ester moulding layer 42, and from being subjected to electricity to be exposed to the outside with the intermediate portion of Coupler 40, the intermediate portion periphery of the Coupler major component 40a that has at the 1st ester moulding layer 41 is provided with and is used to engage the 2nd ester moulding layer 42, form the 1st engagement groove 45 of circulation shape, on the 2nd ester moulding layer 42, be formed with the extension part 42b that extends to the 1st engagement groove 45 outsides, this extension part 42b forms with the outer surface of non-fastening state Contact Coupled device major component 40a and covers this Coupler major component 40a, so that front end is connected in the annular stepped portion 46, this end difference 46 is formed at the periphery of Coupler major component 40a in the 1st engagement groove 45 outsides.
In addition, be provided with the 2nd engagement groove 43 in the front end periphery of the 1st ester moulding layer 41, its front-end edge 42a that forms the circulation shape and engage the 2nd ester moulding layer 42 is week entirely.And, in part along the corresponding coil assembly body 11 of the axial direction of valve casing 5, be provided with engaging teat 44 in the periphery of the 1st ester moulding layer 41 as circulation shape engagement portion, it is used to engage the interior thorough week of the 2nd ester moulding layer 42, be fastened in the interior thorough week of the 2nd ester moulding layer 42 on the engaging teat 44, utilize this engaging teat 44 to limit its displacement rearward.
In addition, the rear portion of the 2nd ester moulding layer 42 covers the rear portion of the 1st ester moulding layer 41 fully, cover simultaneously the intermediate portion of inlet tube 22 always, be provided with the 3rd engagement groove 47 at the intermediate portion outer surface of inlet tube 22, its rearward end that forms the circulation shape and engage the 2nd ester moulding layer 42 is week entirely.
Below, the effect of present embodiment is described, resin formation part 7 utilizes the 1st ester moulding layer 41 and the 2nd ester moulding layer 42 bilayer to be shaped and constitutes, described the 1st ester moulding layer 41 covers solenoid part 6 at least, and be configured for forming the Coupler major component 40a that is subjected to electricity to use the framework of Coupler 40, described the 2nd ester moulding layer 42 utilizes flexural strength to form less than the material of the 1st ester moulding layer 41, cover the 1st ester moulding layer 41, and expose the 1st ester moulding layer 41 from being subjected to electricity with the intermediate portion of Coupler 40 in forward end.
Therefore, by utilizing the 1st ester moulding layer 41 to cover the coil 29 of coil assembly body 11 and be subjected to electric side splicing ear 38 ... joint, and utilize the 1st ester moulding layer 41 to be formed for constituting and be subjected to the Coupler major component 40a of electricity, can make resin formation part 7 have the intensity of the reliability that can guarantee electrical connection section with the framework of Coupler 40.And, the 2nd ester moulding layer 42 that covers the 1st ester moulding layer 41 utilizes the less synthetic resin of flexural strength to form, thereby can effectively suppress the generation of motion and sound, and compare when utilizing sound-insulating cover to cover whole Fuelinjection nozzle, can make the electro-magneto fuel injector overall compactization.And, be double-deck the shaping by the end of the intermediate portion that is subjected to electricity with Coupler 40, can utilize the 1st ester moulding layer 41 to obtain to be subjected to electricity with Coupler 40 needed intensity, utilize the 2nd ester moulding layer 42 effectively to reduce from the motion and sound that produced with Coupler 40 by electricity.
And, the 1st ester moulding layer 41 utilizes the liquid-crystalline polymer of having sneaked into glass fibre to form, the liquid-crystalline polymer of having sneaked into glass fibre has the effect of the transmission that relatively suppresses motion and sound, and rigidity is big, so can further improve the intensity of the reliability that is used to guarantee electrical connection section, suppress the generation of motion and sound more effectively.
And the 2nd ester moulding layer 42 utilizes has got rid of the thermoplastic polyester elastomer formation of sneaking into glass fibre, has got rid of the thermoplastic polyester elastomer of sneaking into glass fibre and has had better elastic, so can effectively suppress the generation of motion and sound.
And, be provided with the 2nd engagement groove 43 of circulation shape in the front end periphery of the 1st ester moulding layer 41, the front-end edge 42a that is used to engage the 2nd ester moulding layer 42 is week entirely, in part along the corresponding coil assembly body 11 of the axial direction of valve casing 9, periphery at the 1st ester moulding layer 41 is provided with engaging teat 44, it is used to engage the interior thorough week of the 2nd ester moulding layer 42, to limit the 2nd ester moulding layer 42 displacement rearward.
In addition, when the double-deck resin formation part 7 that the 1st ester moulding layer 41 that the synthetic resin that is differed from one another by utilization forms and the 2nd ester moulding layer 42 constitute cools off after shaping, the 2nd ester moulding layer 42 shrinks so that its front-end edge 42a breaks away from from the 2nd engagement groove 43 of the front end of the 1st ester moulding layer 41, but be located at the 1st ester moulding layer 41 periphery be used to limit the 2nd ester moulding layer 42 circulation shape engaging teat 44 of displacement rearward, be configured in the part of corresponding coil assembly body 11.Therefore, the distance between the 2nd engagement groove 43 and the engaging teat 44 is shorter, promptly will shrink in the 2nd ester moulding layer 42 so that its front-end edge 42a is shorter from the length of the part of the 2nd engagement groove 43 disengagings.Therefore, even producing, shrinks on the 2nd ester moulding layer 42, the front-end edge 42a of the 2nd ester moulding layer 42 is also minimum towards the displacement amount of a side displacement that breaks away from from the 2nd engagement groove 43, the front-end edge 42a that can suppress the 2nd ester moulding layer 42 floats from the front end of the 1st ester moulding layer 41, prevent that moisture etc. from entering between the front end of two ester moulding layers 41,42, improve commodity.
In addition, the intermediate portion periphery of the Coupler major component 40a that has at the 1st ester moulding layer 41 is provided with the 1st engagement groove 45, it forms the circulation shape and engages the 2nd ester moulding layer 42, be formed with the extension part 42b that extends to the 1st engagement groove 45 outsides on the 2nd ester moulding layer 42, this extension part 42b is with the outer surface of non-fastening state Contact Coupled device major component 40a and cover this Coupler major component 40a.
Therefore, as shown in Figure 4, when cooled off after shaping with Coupler 40 by electricity, will act on the inboard that is fastened on the part on the 1st engagement groove 45 in the 2nd ester moulding layer 42 to the shrinking stress F1 that solenoid part 6 sides are shunk, in the part of corresponding the 1st engagement groove 45, on the 2nd ester moulding layer 42, produce reaction force F2 thus towards a side that breaks away from from the 1st engagement groove 44.And, shrinking stress F3 towards the outer circumferential face side of Coupler major component 40a resists described reaction force F2, act on the extension part 42b that extends to the 1st engagement groove 45 outsides in the 2nd ester moulding layer 42, by the distance L of suitable setting, can make shrinking stress F3 towards the outer circumferential face side of Coupler major component 40a greater than described reaction force F2 from the 1st engagement groove 45 inboards to extension part 42b front end.
Its result, contraction in the time of can preventing because of 42 cooling of the 2nd ester moulding layer, and be subjected to electricity with the peripheral part of Coupler 40, produce gap and projection in the be shaped boundary portion of layer 41,42 of double-layer resin, can improve not shown power supply with Coupler be subjected to the electricity connectivity and the commodity of Coupler 40.
Embodiment 2
Fig. 5 represents the 2nd embodiment of the present invention, be located at the engagement portion of the 1st ester moulding layer 41 periphery along the axial direction of valve casing 5 in the part of corresponding coil assembly body 11, it also can be the engaging recessed part 48 of circulation shape, by utilizing this engaging recessed part 48 restrictions the 2nd ester moulding layer 42 displacement rearward, also can bring into play identical effect with above-mentioned the 1st embodiment.
Fig. 6 represents the 3rd embodiment of the present invention, be located at the engagement portion of the 1st ester moulding layer 41 periphery along the axial direction of valve casing 5 in the part of corresponding coil assembly body 11, it also can be the engaging end difference 49 of the circulation shape of face forward, by utilizing this engaging end difference 49 restrictions the 2nd ester moulding layer 42 displacement rearward, also can bring into play and the above-mentioned the 1st and the 2nd identical effect of embodiment.
Embodiments of the invention more than have been described, but have the invention is not restricted to the foregoing description, can carry out various design alterations not breaking away under the situation of the present invention that claims put down in writing.
Claims (2)
1. electro-magneto fuel injector, this electro-magneto fuel injector has:
Valve events portion (5), it contains valve body (10) in front end has the valve casing (9) of valve seat (8), and this valve body (10) is by to the direction elastic force-applying that is seated on the described valve seat (8);
Solenoid part (6), wherein can produce coil assembly body (11) to the electromagnetic force of the described valve body of a side drive (10) that leaves described valve seat (8), be housed in the helical shell (12) that is provided with continuously with described valve casing (9) and rearward extends; And
Resin formation part (7), it forms by the 1st ester moulding layer (41) that utilizes the 2nd ester moulding layer (42) coverage of synthetic resin system, described the 1st ester moulding layer (41) covers this solenoid part (6), and be formed for constituting the Coupler major component (40a) that is subjected to electricity to use the framework of Coupler (40), this be subjected to electricity with Coupler (40) face be connected with the coil (29) of described coil assembly body (11) be subjected to electric side splicing ear (38), described the 2nd ester moulding layer (42) utilizes the synthetic resin different with the 1st ester moulding layer (41) to form, and the outer surface that exposes Coupler major component (40a) in forward end from the intermediate portion of described Coupler major component (40a)
It is characterized in that,
The intermediate portion periphery of the Coupler major component (40a) that has at described the 1st ester moulding layer (41) is provided with the circulation shape engagement groove (45) that is used to engage the 2nd ester moulding layer (42), be formed with the extension part (42b) that extends to described engagement groove (45) outside on the 2nd ester moulding layer (42), this extension part (42b) contacts the outer surface of described Coupler major component (40a) and covers this Coupler major component (40a) with non-fastening state.
2. electro-magneto fuel injector according to claim 1, it is characterized in that, front end periphery at described the 1st ester moulding layer (41) is provided with the 2nd engagement groove (43), it forms the circulation shape and engages the full week of the front-end edge (42a) of the 2nd ester moulding layer (42), in part along the corresponding described coil assembly body of the axial direction of described valve casing (9) (11), be provided with the engagement portion (44 in the interior thorough week of engaging the 2nd ester moulding layer (42) in the periphery of the 1st ester moulding layer (41), 48,49), to limit the 2nd ester moulding layer (42) displacement rearward.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP279699/2004 | 2004-09-27 | ||
| JP279698/2004 | 2004-09-27 | ||
| JP2004279698A JP3959087B2 (en) | 2004-09-27 | 2004-09-27 | Electromagnetic fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101027474A true CN101027474A (en) | 2007-08-29 |
| CN100489296C CN100489296C (en) | 2009-05-20 |
Family
ID=36231484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800326541A Active CN100489296C (en) | 2004-09-27 | 2005-09-22 | Solenoid fuel jet valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3959087B2 (en) |
| CN (1) | CN100489296C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539085B (en) * | 2008-03-18 | 2012-06-20 | 株式会社京浜 | Electromagnetic fuel injection valve |
| CN107923353A (en) * | 2015-09-16 | 2018-04-17 | 日立汽车系统株式会社 | Fuelinjection nozzle |
-
2004
- 2004-09-27 JP JP2004279698A patent/JP3959087B2/en active Active
-
2005
- 2005-09-22 CN CNB2005800326541A patent/CN100489296C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539085B (en) * | 2008-03-18 | 2012-06-20 | 株式会社京浜 | Electromagnetic fuel injection valve |
| CN107923353A (en) * | 2015-09-16 | 2018-04-17 | 日立汽车系统株式会社 | Fuelinjection nozzle |
| CN107923353B (en) * | 2015-09-16 | 2019-05-03 | 日立汽车系统株式会社 | Fuel injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100489296C (en) | 2009-05-20 |
| JP2006090267A (en) | 2006-04-06 |
| JP3959087B2 (en) | 2007-08-15 |
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