IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0736951
(2009-04-07)
|
등록번호 |
US-8707930
(2014-04-29)
|
우선권정보 |
DE-10 2008 002 122 (2008-05-30) |
국제출원번호 |
PCT/EP2009/054137
(2009-04-07)
|
§371/§102 date |
20110407
(20110407)
|
국제공개번호 |
WO2009/144069
(2009-12-03)
|
발명자
/ 주소 |
- Bolz, Thilo
- Fuerst, Thomas
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
7 |
초록
▼
The hold-down device for a fuel injection device has a design which is simple in particular, which nonetheless enables a fuel injector (1) to be held down very effectively. The fuel injection device includes at least one fuel injector (1), a receptacle bore for the fuel injector (1) and a connecting
The hold-down device for a fuel injection device has a design which is simple in particular, which nonetheless enables a fuel injector (1) to be held down very effectively. The fuel injection device includes at least one fuel injector (1), a receptacle bore for the fuel injector (1) and a connecting fitting (6) of a fuel distributor line (4), the hold-down device (10) being clamped between a shoulder (12) of the fuel injector (1) and an end surface (14) of the connecting fitting (6). The hold-down device (10) has a base element (11) in the shape of a partial ring, from which an axially flexible hold-down clip (13) extends in a bent-away fashion, the clip having at least two webs (21), two oblique segments (22), and two contact segments (23). The fuel injector (1) is suitable in particular for use in fuel injection systems of mixture-compressing, externally ignited internal combustion engines.
대표청구항
▼
1. A hold-down device for a fuel injection device, the fuel injection device including at least one fuel injector, a receptacle bore for the fuel injector and a connecting fitting of a fuel distributor line, wherein it is possible to clamp the hold-down device between a shoulder of the fuel injector
1. A hold-down device for a fuel injection device, the fuel injection device including at least one fuel injector, a receptacle bore for the fuel injector and a connecting fitting of a fuel distributor line, wherein it is possible to clamp the hold-down device between a shoulder of the fuel injector and an end surface of the connecting fitting, the hold-down device comprising: a base element in the shape of a partial ring, from which an axially flexible hold-down clip extends, the clip having at least two webs, two oblique segments, and two contact segments, and the base element being designed as a partial ring standing upright, whose wall thickness corresponds to the thickness of the sheet metal used, wherein the base element makes a transition into the two webs of the hold-down clip in such a way that the sheet metal wide sides of the webs extending out from the plane of the base element are opposite from one another and the ends of the webs facing away from the base element are bent in such a way that the oblique segments extend out from the bent end areas of the webs in such a way that the cut edges are now opposite from one another in the sheet metal. 2. The hold-down device as recited in claim 1, wherein the base element of the hold-down device may be placed into contact with the shoulder of the fuel injector. 3. The hold-down device as recited in claim 1, wherein the contact segments of the hold-down clip may be placed into contact with the end surface of the connecting fitting. 4. The hold-down device as recited in claim 2, wherein the contact segments of the hold-down clip may be placed into contact with the end surface of the connecting fitting. 5. The hold-down device as recited in claim 1, wherein surfaces, under bending stress, of the oblique segments and contact segments run perpendicular to the cut edges that result when the blank for the hold-down device is removed from the corresponding sheet metal. 6. The hold-down device as recited in claim 2, wherein surfaces, under bending stress, of the oblique segments and contact segments run perpendicular to the cut edges that result when the blank for the hold-down device is removed from the corresponding sheet metal. 7. The hold-down device as recited in claim 3, wherein surfaces, under bending stress, of the oblique segments and contact segments run perpendicular to the cut edges that result when the blank for the hold-down device is removed from the corresponding sheet metal. 8. The hold-down device as recited in claim 1, wherein it is designed as a stamped bent part. 9. The hold-down device as recited in claim 2, wherein it is designed as a stamped bent part. 10. The hold-down device as recited in claim 3, wherein it is designed as a stamped bent part. 11. The hold-down device as recited in claim 5, wherein it is designed as a stamped bent part. 12. The hold-down device as recited in claim 1, wherein the sheet metal used for the hold-down device is made of spring steel or stainless steel. 13. The hold-down device as recited in claim 2, wherein the sheet metal used for the hold-down device is made of spring steel or stainless steel. 14. The hold-down device as recited in claim 3, wherein the sheet metal used for the hold-down device is made of spring steel or stainless steel. 15. The hold-down device as recited in claim 5, wherein the hold-down device has a wall thickness of approximately 1.5 mm, corresponding to the sheet thickness used. 16. The hold-down device as recited in claim 12, wherein the hold-down device has a wall thickness of approximately 1.5 mm, corresponding to the sheet thickness used. 17. The hold-down device as recited in claim 1, wherein the two contact segments of the hold-down clip terminate it so that the hold-down device is open. 18. The hold-down device as recited in claim 2, wherein the two contact segments of the hold-down clip terminate it so that the hold-down device is open. 19. The hold-down device as recited in claim 1, wherein end areas of webs facing away from the base element are bent outward in order to make a transition from there into the oblique segments. 20. The hold-down device as recited in claim 2, wherein end areas of webs facing away from the base element are bent outward in order to make a transition from there into the oblique segments.
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