Standby system

Details Standby system Standby system

1974-11-11

1976-09-28

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 27GE, 123121, F02M 2102

Patent

active

039825167

ABSTRACT:
An internal combustion engine is normally fueled from a primary source of natural gas. A pressure switch closes upon sensing engine vacuum. A second pressure switch closes at a predetermined low pressure in the primary natural gas source. The closing of these two switches opens a solenoid valve to admit gas from an alternate source to the engine. A check valve prevents gas from the alternate source from flowing towards the primary source. The engine's battery provides electrical energy for the solenoid and the battery is in circuit with the engine's ignition switch.

REFERENCES:
patent: 2518400 (1950-08-01), Thompson
patent: 2612145 (1952-09-01), Steven et al.
patent: 2678030 (1954-05-01), Bader
patent: 2734490 (1956-02-01), Moulton
patent: 2927562 (1960-03-01), Lafferty
patent: 2988078 (1961-06-01), Ensign
patent: 3114358 (1963-12-01), Kauffman

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