Exhaust gas recirculation system having means to estimate actual

Details Exhaust gas recirculation system having means to estimate actual Exhaust gas recirculation system having means to estimate actual

1976-05-25

1977-11-29

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 1R, F02M 2506

Patent

active

040600653

ABSTRACT:
The recirculation rate estimation means comprises three temperature sensors to respectively measure temperatures of intaken air, recycled exhaust gas and resulting mixture, and an analog computing unit to produce a signal representing an actual recirculation rate based on the temperature data and predeterminate specific heat values of the respective gases.

REFERENCES:
patent: 3605709 (1971-09-01), Nakajima et al.
patent: 3636934 (1972-01-01), Nakajima et al.
patent: 3800764 (1944-04-01), Goto et al.
patent: 3835827 (1974-09-01), Wolgemuth

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