发明名称 |
Fuel injection device has differential pressure, high-pressure chambers re-filled via hydraulically operated non-return valves subject to pressure in high pressure chamber to vent differential chamber |
摘要 |
The device has an injector supplied by a high-pressure source and a pressure booster with a piston separating a chamber connected to the source from a high pressure chamber connected to the injector and a differential pressure chamber with a 2/2-way valve for operating the booster. The chambers are re-filled via hydraulically operated non-return valves subjected to pressure in the high pressure chamber to vent the differential chamber. The device has a fuel injector (3) supplied by a high-pressure source (21) and a pressure booster (2) between the source and injector with a movable piston (5) separating a chamber connected to the source from a high pressure chamber (11) connected to the injector and a differential pressure chamber (10) with an associated 2/2-way valve for operating the booster. The differential pressure and high-pressure chambers are re-filled via hydraulically operated non-return valves (26,31) that are subjected to the pressure in the high pressure chamber for venting the differential pressure chamber.
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申请公布号 |
DE10251932(A1) |
申请公布日期 |
2004.05.19 |
申请号 |
DE20021051932 |
申请日期 |
2002.11.08 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
GEYER, GERHARD |
分类号 |
F02M47/02;F02M57/02;F02M59/36;F02M59/46;(IPC1-7):F02M57/02 |
主分类号 |
F02M47/02 |
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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