Vacuum advance regulating valve

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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F02P 504

Patent

active

039398129

ABSTRACT:
A valve to prevent atmospheric contamination which automatically regulates the vacuum advance of the distributor in internal combustion engines, which comprises a conduit having two terminals, one of which is communicated to the vacuum connection of said carburetor, and the other one is connected to the vacuum advance mechanism of the distributor, having said conduit a venting orifice, and the referred conduit can be obstructed by a valve closing element connected to a diaphragm confined between two main bodies, one of which comprises said conduit and the other one is composed of a tubular body with inside threading which houses a spring which presses with one of its ends against the diaphragm and with the other end biasing against the lower portion of a threaded nipple, which screws into said inside threaded of said tubular body; said threaded nipple comprising a lengthwise bore which extends through a tube which by means of a hose is connected to the intake manifold of the carburetor, permitting the opening of the valve when the engine is working with load.

REFERENCES:
patent: 3688753 (1972-09-01), Walker
patent: 3779220 (1973-12-01), Wu

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