CN211343192U - Fuel injector assembly - Google Patents

Fuel injector assembly Download PDF

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Publication number
CN211343192U
CN211343192U CN201921624748.3U CN201921624748U CN211343192U CN 211343192 U CN211343192 U CN 211343192U CN 201921624748 U CN201921624748 U CN 201921624748U CN 211343192 U CN211343192 U CN 211343192U
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CN
China
Prior art keywords
fuel injector
arm
fuel
injector assembly
top end
Prior art date
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Active
Application number
CN201921624748.3U
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Chinese (zh)
Inventor
王亮
许金鹏
许大坤
赵莹
李广春
王怀起
刘巍巍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Automotive Changchun Co Ltd
Original Assignee
Vitesco Automotive Changchun Co Ltd
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Priority to CN201921624748.3U priority Critical patent/CN211343192U/en
Application granted granted Critical
Publication of CN211343192U publication Critical patent/CN211343192U/en
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Abstract

The utility model provides a fuel injector assembly, it includes the oil rail, fixes oil cup, the sprayer on the oil rail and is connected to the clamping on the oil cup with the sprayer. The fuel injector is provided with a propping surface, and the clamp is arranged between the propping surface and the lower end surface of the fuel cup. The oil sprayer is also provided with a protruding anti-rotation part. The utility model provides a sprayer subassembly is through setting up the portion of preventing changeing that stretches out suddenly on the sprayer, can remove the function of preventing changeing on the clamping to reduce the manufacturing degree of difficulty of clamping, reduced the manufacturing cost of clamping.

Description

Fuel injector assembly
Technical Field
The utility model relates to a sprayer subassembly, especially a sprayer subassembly with prevent changeing function.
Background
A conventional fuel injector assembly includes a fuel rail, a fuel cup secured to the fuel rail, a fuel injector, and a clip connecting the fuel injector to the fuel cup. In order to play the anti-rotation effect of the fuel injector, an anti-rotation function is arranged on the clamp. This increases the structural complexity of the clip, thereby increasing manufacturing costs. Meanwhile, the anti-rotation function of the clamp also enables the outline size of the clamp to be enlarged, and a larger installation space is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sprayer subassembly with prevent changeing function.
According to an aspect of the present invention, a fuel injector assembly is provided that includes a fuel rail, a fuel cup secured to the fuel rail, a fuel injector, and a clip connecting the fuel injector to the fuel cup. The fuel injector is provided with a propping surface, and the clamp is arranged between the propping surface and the lower end surface of the fuel cup. The oil sprayer is also provided with a protruding anti-rotation part.
Preferably, the fuel injector is provided with a connector, and the rotation prevention portion is arranged below the connector.
Preferably, the rotation-preventing part is made of a plastic material, the connector comprises a housing made of the plastic material, and the housing and the rotation-preventing part are integrally formed in an injection molding mode.
Preferably, the fuel injector is provided with an annular groove located at the abutting surface, the clip comprises a bottom end, a first arm and a second arm, the first arm and the second arm protrude from the bottom end, the clip further comprises an opening located between the first arm and the second arm, the fuel injector is arranged in the opening, the bottom end is arranged on the abutting surface, the inner side of the bottom end extends into the annular groove, the first arm comprises a first top end and a first connecting portion, the first connecting portion connects the bottom end with the first top end, the second arm comprises a second top end and a second connecting portion, the second connecting portion connects the bottom end with the second top end, and the first top end and the second top end are in contact with the lower end face of the clip.
Preferably, the first arm further includes a first resilient arcuate portion connecting the base end to the first connecting portion, and the second arm further includes a second resilient arcuate portion connecting the base end to the second connecting portion.
Preferably, the first top end and the second top end are arc-shaped.
Preferably, the first connecting portion and the second connecting portion are located on the same plane.
Preferably, the rotation prevention part is formed by injection molding.
Preferably, the rotation prevention part is fixed to the lower side of the connector by assembling.
The utility model provides a sprayer subassembly is through setting up the portion of preventing changeing that stretches out suddenly on the sprayer, can remove the function of preventing changeing on the clamping to reduce the manufacturing degree of difficulty of clamping, reduced the manufacturing cost of clamping.
Drawings
Fig. 1 is a perspective view of a fuel injector assembly according to the present invention.
Fig. 2 is a perspective view of the fuel injector of the present invention.
FIG. 3 is a perspective view of the fuel injector and clip when assembled together.
Fig. 4 is a perspective view of the clip.
FIG. 5 is a front view of the clip.
FIG. 6 is a top view of the clip.
Detailed Description
Referring to fig. 1, the present disclosure is directed to a fuel injector assembly 100 including a fuel rail 1, a fuel cup 2 secured to the fuel rail 1, a fuel injector 3, and a clip 4 connecting the fuel injector 3 to the fuel cup 2. The oil cup 2 includes a body portion 21 and a rim 22. The clamp 4 is arranged between the oil cup 2 and the oil injector 3. In the normal state, the clip 4 is in a compressed state. The fuel injector 3 is also provided with a protruding anti-rotation portion 32. By providing the rotation preventing portion 32 on the injector 3, the provision of the rotation preventing function on the conventional clip 4 can be removed, thereby simplifying the structure of the clip. In use, the injector 3 is mounted between an engine block (not shown) and the rail 1. The engine cylinder body is provided with a hole (not shown) into which the rotation preventing portion 32 extends, and the rotation preventing portion 32 is fitted with the hole, thereby achieving a technical effect of preventing the fuel injector 3 from rotating.
The fuel injector 3 is provided with a connector 31, and a rotation preventing portion 32 is provided below the connector 31.
The rotation preventing portion 32 is made of plastic material, and the connector 31 includes a housing 311 made of plastic material and a terminal (not shown) fixed in the housing 311. The housing 311 and the rotation preventing portion 32 are integrally formed by injection molding. In other embodiments, the rotation preventing portion 32 may also be fixed to the lower side of the connector 31 by means of assembly. For example, connector 31 department is equipped with the joint groove, prevents that commentaries on classics portion 32 is equipped with joint portion, thereby will prevent that commentaries on classics portion 32 inserts the joint inslot and will prevent that commentaries on classics portion 32 is fixed to the joint inslot. Or the rotation preventing part 32 is provided with a stud, the connector 31 is provided with a threaded hole, and the rotation preventing part 32 is fixed to the connector 31 in a threaded connection mode.
As further shown in fig. 2 to 6, the injector 3 is provided with a holding surface 34. The clamp 4 is arranged between the abutting surface 34 and the lower end surface of the oil cup 2,
the injector 3 is provided with an annular groove 35 at the abutment surface 34. The clip 4 includes a base end 41, a first arm portion 42 and a second arm portion 43 protruding from the base end 41. The clip 4 further comprises an opening 44 between the first arm 42 and the second arm 43. The fuel injector 3 is provided in the opening 44. The bottom end 41 is placed on the abutting surface 34 and the inner side extends into the annular groove 35. First arm 42 includes a first top end 423 and a first connection 422 connecting bottom end 41 to first top end 423, and second arm 43 includes a second top end 433 and a second connection 432 connecting bottom end 41 to second top end 433. The first tip 423 and the second tip 433 contact the lower end surface of the clip 4. The annular groove 35 is formed in the fuel injector 3, so that the clip 4 can be mounted and positioned.
The first arm portion 42 further includes a first resilient arc 421 connecting the bottom end 41 to the first connection portion 422, and the second arm portion 43 further includes a second resilient arc 431 connecting the bottom end 41 to the second connection portion 432. The first and second arc parts 421 and 431 have a technical effect of generating an elastic force.
The first top end 423 and the second top end 433 are arc-shaped. The first connection portion 422 and the second connection portion 432 are located on the same plane. The first arm portion 42 and the second arm portion 43 have the same structure while being symmetrically disposed. This arrangement enables the injector 3 to be stressed more evenly.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (9)

1. A fuel injector assembly comprises a fuel rail (1), a fuel cup (2) fixed on the fuel rail (1), a fuel injector (3) and a clamp (4) for connecting the fuel injector (3) to the fuel cup (2), wherein the fuel injector (3) is provided with a butting surface (34), and the clamp (4) is arranged between the butting surface (34) and the lower end surface of the fuel cup (2), and is characterized in that the fuel injector (3) is further provided with a protruding anti-rotation part (32).
2. A fuel injector assembly according to claim 1, characterized in that the fuel injector (3) is provided with a connector (31), and that the rotation prevention portion (32) is provided below the connector (31).
3. The fuel injector assembly according to claim 2, characterized in that the anti-rotation portion (32) is of plastic material, the connector (31) comprises a housing (311) of plastic material, and the housing (311) and the anti-rotation portion (32) are integrally formed by injection molding.
4. A fuel injector assembly according to claim 1, characterized in that the fuel injector (3) is provided with an annular groove (35) at the holding surface (34), the clip (4) comprises a bottom end (41), a first arm (42) and a second arm (43) protruding from the bottom end (41), the clip (4) further comprises an opening (44) between the first arm (42) and the second arm (43), the fuel injector (3) is provided in the opening (44), the bottom end (41) is placed on the holding surface (34) and protrudes inside into the annular groove (35), the first arm (42) comprises a first top end (423) and a first connecting portion (422) connecting the bottom end (41) with the first top end (423), the second arm (43) comprises a second top end (433) and a second connecting portion (432) connecting the bottom end (41) with the second top end (433), the first top end (423) and the second top end (433) are in contact with the lower end face of the oil cup (2).
5. The fuel injector assembly according to claim 4, characterized in that the first arm (42) further comprises a resilient first arcuate portion (421) connecting the base end (41) to the first connection portion (422), and the second arm (43) further comprises a resilient second arcuate portion (431) connecting the base end (41) to the second connection portion (432).
6. The fuel injector assembly as set forth in claim 4 characterized in that said first tip end (423) and said second tip end (433) are arcuate.
7. The fuel injector assembly according to claim 4, characterized in that the first connection portion (422) and the second connection portion (432) are located on the same plane.
8. The fuel injector assembly according to claim 1, characterized in that the anti-rotation portion (32) is made by injection molding.
9. A fuel injector assembly according to claim 1, characterized in that said anti-rotation portion (32) is fixed by means of assembly to the underside of the connector (31).
CN201921624748.3U 2019-09-27 2019-09-27 Fuel injector assembly Active CN211343192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921624748.3U CN211343192U (en) 2019-09-27 2019-09-27 Fuel injector assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921624748.3U CN211343192U (en) 2019-09-27 2019-09-27 Fuel injector assembly

Publications (1)

Publication Number Publication Date
CN211343192U true CN211343192U (en) 2020-08-25

Family

ID=72137901

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921624748.3U Active CN211343192U (en) 2019-09-27 2019-09-27 Fuel injector assembly

Country Status (1)

Country Link
CN (1) CN211343192U (en)

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