Diesel engine emergency shutoff device and method

Details Diesel engine emergency shutoff device and method Diesel engine emergency shutoff device and method

1996-10-17

1999-02-23

Okonsky, David A.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

F02D 908

Patent

active

058733434

ABSTRACT:
An improvement for diesel engine emergency shutoff devices and method for intake air-flow shutoff valves. The device includes tubing connecting the engine's exhaust manifold with the intake manifold at a location down stream from the shutoff valve with a check valve which prevents exhaust gas from entering the intake manifold until vacuum within the intake manifold reaches a desired level. When the emergency shutoff device operates, intake manifold vacuum opens the check valve and allows oxygen deficient exhaust gas to enter the intake manifold preventing a sudden damaging vacuum while also allowing the shutoff device to completely shutdown the engine.

REFERENCES:
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patent: 4651683 (1987-03-01), Nishida
patent: 5003943 (1991-04-01), Lafferty, Sr.
patent: 5038808 (1991-08-01), Stumpp
patent: 5050548 (1991-09-01), Minegishi
patent: 5056482 (1991-10-01), Chonan et al.
patent: 5205252 (1993-04-01), Krepela

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