Fuel flow control system for internal combustion engines

Details Fuel flow control system for internal combustion engines Fuel flow control system for internal combustion engines

1980-02-04

1981-11-17

Feinberg, Craig R.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123463, 123512, 251309, F02M 3704

Patent

active

043005020

ABSTRACT:
A fuel economizer system and fuel flow control valve arrangement for an internal combustion engine having a fuel supply tank, a main fuel supply line connecting the tank to the carburetor inlet of the engine, and a fuel pump in the supply line for delivering fuel to the carburetor inlet. The control valve arrangement is located in the fuel supply line between the fuel pump and the carburetor inlet, and includes a first control valve which is automatically incrementally adjusted between closed and open position by a diaphragm motor which is operatively connected to the intake manifold of the engine such that changes in vacuum in the intake manifold automatically adjust the control valve to proportionally increase or decrease the supply of fuel to the carburetor inlet. Connected in parallel with the first control valve in the fuel line to the carburetor is a fuel pressure regulator valve which ensures a predetermined minimum fuel pressure and flow to the carburetor inlet when fuel flow through the first control valve is insufficient to maintain such fuel pressure at the carburetor inlet.

REFERENCES:
patent: 2884918 (1959-05-01), Klug
patent: 3521856 (1970-07-01), Smith
patent: 3674238 (1972-07-01), Pickles et al.
patent: 4178882 (1979-12-01), Anderson et al.
patent: 4186707 (1980-05-01), Driggers
patent: 4237849 (1980-12-01), Roberts

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