Split engine vacuum control fuel metering system

Details Split engine vacuum control fuel metering system Split engine vacuum control fuel metering system

1978-01-16

1980-05-06

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

261 23A, F02M 1304, F02D 1700

Patent

active

042011795

ABSTRACT:
A modification to a multi-cylinder internal combustion engine to automatically restrict the flow of fuel to one group of the cylinders during a first phase of operation in response to a specified vacuum level generated by the operation of the other group of cylinders. In the first phase of operation, all fuel is blocked from entering the inactive second group of cylinders by a modified valving mechanism in the carburetor. In one embodiment of the invention, it is used in conjunction with throttle valve controls for each of the groups of cylinders, blocking not only fuel to the inactive group of cylinders, but also the flow of air to the inactive group.

REFERENCES:
patent: 2114655 (1938-04-01), Leibing
patent: 2166968 (1939-07-01), Rohlin
patent: 2315183 (1943-03-01), Bicknell et al.
patent: 2379288 (1945-06-01), Ericson
patent: 2623617 (1952-12-01), Snyder et al.
patent: 2771867 (1956-11-01), Peras
patent: 2837322 (1958-06-01), Thome et al.
patent: 2857146 (1958-10-01), Carlson
patent: 3121422 (1964-02-01), Baker
patent: 3249099 (1966-05-01), Saxby
patent: 3512510 (1970-05-01), Manning

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