Title:
【発明の名称】燃料噴射装置内の燃料圧を減圧させるための方法
Document Type and Number:
Japanese Patent JPH09509716
Kind Code:
A
Abstract:
PCT No. PCT/DE95/00713 Sec. 371 Date Oct. 25, 1996 Sec. 102(e) Date Oct. 25, 1996 PCT Filed Jun. 1, 1995 PCT Pub. No. WO96/19659 PCT Pub. Date Jun. 27, 1996A system and method for reducing the fuel pressure in a fuel injection system after the internal combustion engine to be supplied has been shut off, in which a high fuel pressure built up in a high-pressure reservoir chamber (common rail) by a high-pressure feed pump, is relieved into the supply tank via control valves that control the injection event and are provided on the injection valves that communicate with the common rail. For purposes of this pressure relief, the control valves are triggered such that they connect a pressure chamber of the injection valve with the common rail or the supply tank so briefly that the pressure urging the valve member of the injection valves in the opening direction remains below an opening pressure of the injection valves, and this triggering process of the control valves is repeated until a desired pressure in the common rail is reached.
Inventors:
Eugen Dolmar
Application Number:
JP51939695A
Publication Date:
September 30, 1997
Filing Date:
June 01, 1995
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M37/00; F02D41/04; F02D41/38; F02M47/00; F02M47/02; F02M55/02; F02M63/00; F02M63/02; F02M69/46; (IPC1-7): F02M47/00; F02M37/00; F02M47/02; F02M55/02
Attorney, Agent or Firm:
Toshio Yano (3 outside)