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Title:
DISTRIBUTION TYPE FUEL INJECTION PUMP
Document Type and Number:
Japanese Patent JPH06173809
Kind Code:
A
Abstract:

PURPOSE: To provide a distribution type fuel injection pump which rapid stops an engine when fuel feeding is stopped by a fuel cutoff valve.

CONSTITUTION: On the way of a spill passage system communicated with a low pressure fuel chamber 6 from a pressure-feeding pump chamber 14 via a spill port 22, a check valve 70 is equipped, which allows relief of fuel from the pressure-feeding pump chamber 14 toward the low pressure fuel chamber 6 and shuts off back flow of the fuel from the low pressure fuel chamber 6 to the pressure-feeding pump chamber 14 via the spill port 22. With this constitution, when fuel feeding is stopped by a fuel cutoff valve 60, back flow of the fuel from the low pressure fuel chamber 6 to the pressure-feeding pump chamber 14 via the spill port 22 is interrupted, fuel feeding to the pressure-feeding pump chamber 14 is surely prevented, and an engine can be rapidly stopped.


Inventors:
TAKAMA KEIKI
Application Number:
JP33311492A
Publication Date:
June 21, 1994
Filing Date:
December 14, 1992
Export Citation:
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Assignee:
NIPPON DENSO CO
International Classes:
F02M41/12; (IPC1-7): F02M41/12
Attorney, Agent or Firm:
Takehiko Suzue