Pressure control valve assembly

Details Pressure control valve assembly Pressure control valve assembly

1977-05-19

1979-01-30

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139BG, 261 39E, F02M 3902, F02M 110

Patent

active

041366530

ABSTRACT:
The control pressure valve assembly for a fuel injection system of an internal combustion engine provides variable fluid pressure which provides a restoring force against the fuel control plunger to alter the fuel-air ratio in dependence on engine and environmental variables. In particular, the fluid pressure is regulated by a spring loaded diaphragm valve which is also subjected to a variable closing force provided by an air pressure cell and by a first temperature sensitive element which opposes the forces of the spring and of the air pressure cell to provide decreased fluid pressure at low engine temperature and a second temperature-sensitive element to oppose the force of the air pressure cell only below a predetermined temperature.

REFERENCES:
patent: 3894523 (1975-07-01), Stumpp
patent: 3917760 (1975-11-01), Swatman
patent: 3963005 (1976-06-01), Eckert
patent: 3974811 (1976-08-01), Stumpp et al.
patent: 3983856 (1976-10-01), Stumpp et al.
patent: 3999527 (1976-12-01), Wessel et al.
patent: 4007722 (1977-02-01), Knapp
patent: 4038955 (1977-08-01), Paulmier

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