Title:
自動車用のコモンレール式燃料噴射装置
Document Type and Number:
Japanese Patent JP4623930
Kind Code:
B2
Abstract:
A common rail fuel injection system for a motor vehicle, comprising a distributor rail ( 16 ) fluidly connected to at least one fuel injector ( 18 ), an accumulator chamber ( 14 ) fluidly connected to the distributor rail, a high pressure fuel pump ( 10 ) that has an inlet for receiving fuel from a low pressure feed system ( 20, 22, 24 ) and an outlet chamber ( 12 ) for proving fuel at high pressure to the accumulator ( 14 ). A recirculation valve ( 52 ) is fluidly connected to the pump outlet chamber ( 12 ), the accumulator ( 14 ), and the low pressure feed system, wherein at a first position the recirculation valve fluidly aligns the outlet chamber ( 12 ) with the accumulator ( 14 ) and in a second position aligns the outlet chamber with the low pressure system for recirculation of fuel through the high pressure pump at the low pressure. A switching valve ( 50 ) is fluidly connected to the pump outlet chamber ( 12 ), the accumulator ( 14 ), and the recirculation valve ( 52 ), wherein at a first position the switching valve ( 50 ) actuates the recirculation valve ( 52 ) to the first position and at a second position the switching valve ( 50 ) actuates the recirculation valve ( 52 ) to the second position. The switching valve ( 50 ) has a set point pressure whereby when the pressure below which the recirculation valve ( 52 ) is set to first position and above which said valve ( 52 ) is set to second position.
More Like This:
| WO/2017/104377 | FUEL RETURN DEVICE |
| WO/1996/032584 | FUEL SUPPLY SYSTEM |
Inventors:
Kelly William W
Application Number:
JP2002519795A
Publication Date:
February 02, 2011
Filing Date:
August 13, 2001
Export Citation:
Assignee:
STANADYNE CORPORATION
International Classes:
F02M37/00; F02M47/00; F02M47/02; F02M59/36; F02M59/46; F02M63/02; F02M69/46
Foreign References:
| DE19612413A1 | ||||
| DE19839579C1 | ||||
| WO2000049283A1 |
Attorney, Agent or Firm:
Katsuzo Asakura