Title:
液圧式ポンプのための複合型要求制御
Document Type and Number:
Japanese Patent JP2005502816
Kind Code:
A
Abstract:
The invention is directed to the combination of fuel rail pressure control at lower speed using high pressure regulation plus fuel rail pressure control at higher speed using any of a variety of forms of inlet metering. The partial filing control at high speed can in one embodiment include pre-metering the quantity of feed fuel delivered to each pumping chamber, for example by modulating the feed pressure at the pumping chamber inlet. Another embodiment includes passing the feed fuel from the inlet passage through a fixed, calibrated orifice sized to pass sufficient feed fuel to fill the pumping chambers in the charging phase during operation of the engine in the low speed range, while in the high speed range the flow resistance of the orifice prevents the pumping chamber from filling in the charging phase, thereby monotonically decreasing the quantity of high pressure fuel delivered to the discharge passage in the discharge phase per engine revolution, with increasing speed above the transition speed.
Inventors:
Irja Jorjevic
Application Number:
JP2003527271A
Publication Date:
January 27, 2005
Filing Date:
September 10, 2002
Export Citation:
Assignee:
Stannadine corporation
International Classes:
F02M37/00; F02D41/30; F02D41/38; F02M47/00; F02M51/02; F02M51/04; F02M59/06; F02M59/20; F02M59/36; F02M63/00; F02M63/02; (IPC1-7): F02M59/20; F02M37/00; F02M47/00; F02M51/02; F02M51/04; F02M63/00
Attorney, Agent or Firm:
Akashi Masatake
Kenichiro Akashi
Kenichiro Akashi