Title:
燃料噴射装置および燃料噴射装置の異常検出方法
Document Type and Number:
Japanese Patent JP4453623
Kind Code:
B2
Abstract:
Fuel injection system (1) has pressure adjustment mechanism (10) in fuel flow channel, extending from low pressure delivery pump (6) to high pressure delivery pump (4). Pressure adjustment mechanism regulates pressure of fuel to be supplied. Abnormal pressure collecting mechanism (24) supervises a pre-selected parameter, which shows interrelation of energy held in fuel and determine whether pressure of fuel at inlet of high pressure pump is abnormally high. Fuel injection system has a pressure accumulator in which the fuel stored at a desired pressure for injecting the fuel into a combustion engine. A high pressure delivery pump, which is driven by the power output of a combustion engine, supplies fuel to the accumulator. A low pressure delivery pump is driven by another power source besides the combustion engine, for sucking the fuel from a fuel tank and supplying the sucked fuel to the high pressure delivery pump by a fuel flow channel. An independent claim is also included for abnormal pressure collecting mechanism.
Inventors:
Shin Tsujimoto
Application Number:
JP2005209144A
Publication Date:
April 21, 2010
Filing Date:
July 19, 2005
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D45/00; F02M37/08; F02M63/00
Domestic Patent References:
| JP10299557A | ||||
| JP7158496A | ||||
| JP2002538368A |
Attorney, Agent or Firm:
Kenji Ishiguro