Fuel injection pump for internal combustion engines

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

1982-05-19

1985-03-05

Moy, Magdalen Y. C.

Internal-combustion engines

Charge forming device

With fuel pump

F02M 5920

Patent

active

045024499

ABSTRACT:
A fuel injection pump which has an adjusting piston for the purpose of injection instant adjustment. The adjusting piston has opposite ends defining respective work chambers. The work chambers are supplied with fuel under rpm-dependent pressure from a suction chamber of the fuel injection pump, via respective throttles, and are relieved via respective outflow lines. The outflow cross sections of the outflow lines are controlled in complementary fashion by a control slide of a control valve. The control slide is exposed to a modifiable control pressure derived from the rpm-dependent pressure, and for the peripheral conditions of a cold engine and rpm of the engine below a threshold rpm, the maximum controlled pressure is established by means of a third control valve.

REFERENCES:
patent: 3147746 (1964-09-01), Hofer
patent: 4342302 (1982-08-01), Straubel et al.
patent: 4353343 (1982-10-01), Trachte
patent: 4355621 (1982-10-01), Yasuhara
patent: 4365605 (1982-12-01), Wessel et al.
patent: 4373492 (1983-02-01), Konrath et al.

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