IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0143365
(2005-06-02)
|
등록번호 |
US-7832071
(2011-01-16)
|
우선권정보 |
DE-20 2004 009 755 U(2004-06-21) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Klann Spezial-Werkzeugbau GmbH
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
3 |
초록
▼
A device for extracting a nozzle assembly of a fuel injection installation. The nozzle assembly is pressed into a cylinder head of an internal combustion engine, with a support pipe, with which the extraction device of the device is supported in the area surrounding the nozzle assembly on the valve
A device for extracting a nozzle assembly of a fuel injection installation. The nozzle assembly is pressed into a cylinder head of an internal combustion engine, with a support pipe, with which the extraction device of the device is supported in the area surrounding the nozzle assembly on the valve cover during the extraction operation. To rule out deformations of the valve cover in case of strong tensile forces and extremely crowded space conditions, provisions are made according to the present invention for a divided support ring, which is formed from two ring sections, which can be placed individually on the valve cover in the area surrounding the nozzle assembly, to be able to be inserted between the support pipe of the extraction device and the surface of the valve cover.
대표청구항
▼
What is claimed is: 1. A device for extracting a nozzle assembly of a fuel injection installation, the nozzle being pressed into a cylinder head of an internal combustion engine, the device comprising: an extraction device including a support cylinder and a separate, support ring detached from said
What is claimed is: 1. A device for extracting a nozzle assembly of a fuel injection installation, the nozzle being pressed into a cylinder head of an internal combustion engine, the device comprising: an extraction device including a support cylinder and a separate, support ring detached from said support cylinder, said support cylinder having a front ring surface located at an end thereof, said support ring having a first ring section and a second ring section to be placed on a valve cover in an area surrounding the nozzle assembly, said support ring being arranged between the support cylinder and a valve cover placed on the cylinder head, said first ring section and said second ring section having a first support surface in contact with the valve cover, said first ring section and said second ring section having a radial width greater than a radial width of said front ring surface, said first ring section and said second ring section having a second support surface, said second support surface engaging said front ring surface of said support cylinder during an extraction operation, said first ring section and said second ring section axially supporting said support cylinder during said extraction operation. 2. A device in accordance with claim 1, further comprising a thrust bearing and an extraction nut, wherein said support cylinder has a cylinder section for receiving said thrust bearing, whereby to extract the nozzle assembly, said extraction device has an extraction spindle supported axially at said thrust bearing via said extraction nut, said extraction nut being screwed on an adjusting thread of said extraction spindle. 3. A device in accordance with claim 2, wherein said extraction device has an extraction spindle to stationarily engage a coupling thread of the nozzle assembly via a mounting thread arranged at an end of said extraction spindle located opposite the adjusting thread. 4. A device in accordance with claim 3, wherein said extraction spindle is provided with a hexagon which projects axially over the adjusting thread and by means of which the extraction spindle can be driven rotatingly for screwing into the coupling thread of the nozzle assembly. 5. A device in accordance with claim 1, wherein said support cylinder has a support wall, which axially adjoins a cylinder section of said support cylinder, said support wall having a free end that forms a front ring surface, said support wall having an opening, which is open toward a front ring surface and extends approximately to the cylinder section and through which extends a radially projecting connection pipe of the nozzle assembly during use. 6. A device in accordance with claim 1, wherein said extraction device has a hydraulic cylinder with a piston rod that can be coupled with the nozzle assembly and said hydraulic cylinder can be caused to engage the cylinder section of the support cylinder. 7. A device in accordance with claim 6, wherein at an end of said support cylinder, located opposite a support surface, said support cylinder has a cylinder section provided with an internal thread, by means of which said support cylinder can be screwed stationarily to a threaded pipe of said hydraulic cylinder. 8. A device in accordance with claim 6, wherein said hydraulic cylinder comprises a tubular piston cylinder with a tubular piston with a through hole, and a threaded spindle provided as a piston rod, said threaded spindle passing through said tubular piston and said threaded spindle has at one of end a mounting thread for coupling said threaded spindle with the nozzle assembly. 9. A device in accordance with claim 8, wherein at an end located opposite said mounting thread, said threaded spindle has an adjusting thread with which said threaded spindle projects over said hydraulic cylinder, and an extraction nut for axially supporting said threaded spindle on an outside at said tubular piston, said extraction nut can be screwed on the adjusting thread in an axially adjustable manner.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.