Engine protector with non-override reset

Details Engine protector with non-override reset Engine protector with non-override reset

1991-07-11

1992-05-12

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 4115, F01P 514

Patent

active

051117851

ABSTRACT:
Fluid pressures in an internal combustion engine are monitored by two diaphragm operated valves and open either valve when abnormal pressures are sensed to shut down the engine. Each valve is a sleeve valve slidable on a stem and normally latched to the stem. The stem carries a reset button and is spring biased to hold the valve in closed position. A valve is released from the stem when abnormal pressures are detected and the valve is spring biased to the open position. If the reset button is held in to override the protective function, the latch release and valve opening will still occur.

REFERENCES:
patent: 3246641 (1966-04-01), Goehring
patent: 3452732 (1969-07-01), Johansson
patent: 3492983 (1970-02-01), Vipperman
patent: 3620204 (1971-11-01), Baltadonis
patent: 3958548 (1976-05-01), Koci et al.

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