发明名称 |
Fuel injector with tubular lower needle guide |
摘要 |
<p>A solenoid actuated fuel injector (10) comprises a valve body (14) having a longitudinal axis (A). A valve seat subassembly (20) is mounted in one end (22) of the valve body. The valve seat subassembly (20) includes a valve seat (24) having a seating surface (26) and a circumferential sealing surface (27) surrounding the seating surface. The valve seat subassembly also includes a lower needle guide (44) and swirl disk (50) welded to the valve seat. The lower guide includes a flange portion (47) and a tube portion (48) having an axially disposed tubular bore (46) for guiding the needle in a tight tolerance relationship. The tubular bore provides a longer length interface with the needle and a smoother wear surface than a conventional pierced hole thin lower guide. <IMAGE></p> |
申请公布号 |
EP1059438(A2) |
申请公布日期 |
2000.12.13 |
申请号 |
EP20000109762 |
申请日期 |
2000.05.09 |
申请人 |
SIEMENS AUTOMOTIVE CORPORATION |
发明人 |
BRINN, BENJAMIN F., JR. |
分类号 |
F02M51/06;F02M51/08;F02M61/12;F02M61/16;F02M61/18;(IPC1-7):F02M51/06 |
主分类号 |
F02M51/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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