Exhaust gas recirculation valve device for an internal combusti

Details Exhaust gas recirculation valve device for an internal combusti Exhaust gas recirculation valve device for an internal combusti

1976-06-09

1977-10-11

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

251 614, 251 615, F02M 2506

Patent

active

040529690

ABSTRACT:
An exhaust gas recirculation valve device for an exhaust gas cleaning apparatus of an internal combustion engine for an automobile, which device comprises a diaphragm mechanism mounted on a body for operating the valve device. The diaphragm mechanism has a diaphragm and has, on both sides of the diaphragm, chambers which should be connected to the respective engine ports. One of the chambers, on the side of the diaphragm facing the surface of the body, is formed by a bellows member, made of rubber material, which is held apart from the surface of the body so that the bellows is effectively insulated from the high temperature of the body caused by the high temperature exhaust gas passing through the body.

REFERENCES:
patent: 2588656 (1952-03-01), Paget
patent: 3322142 (1967-05-01), Baumann
patent: 3800765 (1974-04-01), Thompson
patent: 3885538 (1975-05-01), Suter
patent: 3888222 (1975-06-01), Tomita
patent: 3902696 (1975-09-01), Itu et al.
patent: 3924589 (1975-12-01), Nohira et al.

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