Fuel injection pump for internal combustion engines

Details Fuel injection pump for internal combustion engines Fuel injection pump for internal combustion engines

1989-08-07

1990-06-12

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123179L, F02M 3900

Patent

active

049323857

ABSTRACT:
A fuel injection pump for internal combustion engines, in which both a shift of the injection onset to early during cold starting or when the engine is not yet up to operating temperature can quickly become operative, and a fuel injection quantity adaptation device is operative unaffected by the control criteria for the cold-starting shift to early. To this end, a work chamber of an injection adjuster is acted upon separately by the feed pressure of a fuel feed pump prevailing upstream of a temperature-dependently unlockable pressure maintenance valve, and the pressure-controlled interior of a fuel injection pump supplying the adaptation device is connected to the outlet side of the pressure maintenance valve.

REFERENCES:
patent: 4430974 (1984-02-01), Bofinger
patent: 4489698 (1984-12-01), Hofer
patent: 4590913 (1986-05-01), Faupel
patent: 4619238 (1986-10-01), Hain
patent: 4622943 (1986-11-01), Braun
patent: 4733645 (1988-03-01), Hain
patent: 4796592 (1989-01-01), Hofer

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