发明授权
- 专利标题： Internal combustion engine fuel injector
- 专利标题（中）： 内燃机燃油喷射器
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申请号： US11171658申请日： 2005-06-30
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公开(公告)号： US07299998B2公开(公告)日： 2007-11-27
- 发明人: Mario Ricco , Sisto Luigi De Matthaeis , Adriano Gorgoglione , Alfonso Di Meo , Sergio Stucchi
- 申请人： Mario Ricco , Sisto Luigi De Matthaeis , Adriano Gorgoglione , Alfonso Di Meo , Sergio Stucchi
- 申请人地址： IT
- 专利权人： C.R.F. Societa Consortile per Azioni
- 当前专利权人： C.R.F. Societa Consortile per Azioni
- 当前专利权人地址： IT
- 代理机构： Ostrolenk, Faber, Gerb & Soffen, LLP
- 优先权： EP04425475 20040630; EP05425383 20050527
- 主分类号： F02M41/16
- IPC分类号： F02M41/16
摘要：
An internal combustion engine fuel injector (1) has a rod (10) movable along an axis (3) to open/close a nozzle, and a servovalve (7) having a control chamber (23) with a discharge passage (26) which is opened/closed by a shutter (17) movable axially under the control of an electro-actuator (14); the servovalve (7) also has a fixed axial rod (33) having an outer lateral surface (34) through which the discharge passage (26) comes out; the shutter (17) is fitted to the axial rod (33) to slide axially in substantially fluidtight manner, and, when closing the discharge passage (26), is subjected to substantially zero resultant axial pressure by the fuel; and the control chamber (23) is bounded radially by a tubular portion (8) formed in one piece with said axial rod (33).
公开/授权文献
- US20060032950A1 Internal combustion engine fuel injector 公开/授权日：2006-02-16
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