Title:
FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2612159
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To forcibly cool a solenoid valve for controlling fuel injection timing in a distributor type fuel injection device.
SOLUTION: An electromagnetic coil of a solenoid valve 67 is disposed in an inner chamber 106 closed from the high pressure side. A roller 31 of a cam ring drive mechanism is supported to a cup-shaped roller thrust body 30, and the roller thrust body 30 is airtightly fitted into a radial hole. The roller thrust body 30 forms a fuel circulating pumping chamber 101 on the opposite side to the roller side. The fuel circulating pumping chamber 101 is connected to a fuel tank through a suction passage 102 having a check valve 104 opened in a fuel sucking direction. The suction passage 102 can reduce pressure to the fuel tank through a pressure reducing passage, and an inner chamber of the solenoid valve 67 is disposed at one of the passages.
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Inventors:
André Briennell
The Errored Deyupra
Jean le blanc
The Errored Deyupra
Jean le blanc
Application Number:
JP15134196A
Publication Date:
May 21, 1997
Filing Date:
June 12, 1996
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M41/12; F02M41/06; F02M41/14; F02M59/36; (IPC1-7): F02M41/14; F02M41/14
Attorney, Agent or Firm:
Toshio Yano (2 outside)