One-way throttling valve for pneumatic membrane actuator in engi

Details One-way throttling valve for pneumatic membrane actuator in engi One-way throttling valve for pneumatic membrane actuator in engi

1979-05-09

1981-03-24

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

123556, F02M 3100

Patent

active

042573807

ABSTRACT:
A one-way throttling valve for use in the vacuum line of a pneumatic membrane actuator which controls the combustion air temperature of a carburetor-euipped internal combustion engine by means of an air flow proportioning flapper admitting cold raw air and/or preheated raw air into a duct junction upstream of the intake filter, the throttling valve having a tiny throttling orifice which remains open, while the throttling valve itself is closed, thereby delaying the removal of negative pressure from the pneumatic actuator. The one-way throttling valve may be arranged in one of the two vacuum line connectors of the valve housing of a thermostat relief valve.

REFERENCES:
patent: 3459163 (1969-08-01), Lewis
patent: 3726512 (1973-04-01), Herwig
patent: 3913544 (1975-10-01), Fyie
patent: 3918421 (1975-11-01), Berry
patent: 4175524 (1979-11-01), Coddington
patent: 4178898 (1979-12-01), Akado

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