Control installation for exhaust gas recycling

Details Control installation for exhaust gas recycling Control installation for exhaust gas recycling

1974-03-25

1977-02-01

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

040056910

ABSTRACT:
An improved control installation for internal combustion engines having exhaust gas recycling is described. The installation includes a suction tube, a throttle flap valve mounted within the suction tube, an exhaust gas pipe, an exhaust gas recycling valve and a return line leading from the exhaust gas pipe to the recycling valve and from there back to the suction tube downstream of the throttle flap valve. The improvement comprises a bypass line which extends from the suction tube upstream of the throttle flap valve to the recycling valve and back to the suction tube downstream of the throttle flap valve. The air that passes through the bypass line serves to cool the recycling valve. In addition, the bypass line serves as a conduit for air to the engine during idling operation.

REFERENCES:
patent: 2722927 (1955-11-01), Cornelius
patent: 3805752 (1974-04-01), Cataldo
patent: 3827414 (1974-08-01), Sarto

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