Engine control assembly

Details Engine control assembly Engine control assembly

1976-12-09

1978-05-09

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having sensor or indicator of malfunction, unsafeness, or...

60278, 60290, 123119A, 236 87, F01N 310, F02M 2506

Patent

active

040879658

ABSTRACT:
In an engine having a pump for delivering air to the exhaust system to support oxidation of exhaust gases, a valve opens when air delivered by the pump exceeds a selected temperature to bleed air from the pump into the vacuum chamber of a diaphragm operated valve. In one embodiment the valve diverts air from the exhaust system to relieve the backpressure on the pump, while in another embodiment the valve closes an exhaust gas recirculation passage to improve efficiency of operation.

REFERENCES:
patent: 3236044 (1966-02-01), Ruge
patent: 3364909 (1968-01-01), Mick
patent: 3591961 (1971-07-01), Woodward
patent: 3700165 (1972-10-01), Beehler
patent: 4016853 (1977-04-01), Bible

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