Method and apparatus for reducing the toxic components in exhaus

Details Method and apparatus for reducing the toxic components in exhaus Method and apparatus for reducing the toxic components in exhaus

1975-03-20

1978-02-28

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

040759920

ABSTRACT:
A portion of the exhaust gas of an internal combustion engine is returned to the induction manifold through an exhaust gas recycling line. This recycle line contains one or more orifice plates to create a measurable pressure drop when gas is flowing. The gas flow through the recycle line may be interrupted in controlled manner by a valve, particularly a magnetically actuated valve. The pressure drop across the orifice plate or plates is sensed by pressure-responsive electrical switches which provide input signals for a logical circuit that energizes a signaling device to warn the operator of a malfunction in the exhaust gas recycling system.

REFERENCES:
patent: 3779222 (1973-12-01), Lorenz
patent: 3794006 (1974-02-01), Woodward
patent: 3850151 (1974-11-01), Mawatari et al.
patent: 3924587 (1975-12-01), Murphy
patent: 3937194 (1976-02-01), Tamaki et al.

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