Internal combustion engine having exhaust emission control syste

Details Internal combustion engine having exhaust emission control syste Internal combustion engine having exhaust emission control syste

1975-12-09

1978-07-11

Croyle, Carlton R.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119A, F02P 504, F02M 2506

Patent

active

040994970

ABSTRACT:
The characteristics of an exhaust emission control system can be varied by bleeding air into a vacuum conduit through which a vacuum is applied to a vacuum actuator in the exhaust emission control system. Means for bleeding air into the vacuum conduit includes at least one replaceable orifice. Another ambient air bleeding means comprises three plates which are joined face to face to one after another to form internal fluid connections between pressure and vacuum conduits through which intake passageway vacuum is applied to a vacuum actuator in an exhaust emission control system. One of the three plates is formed with a plurality of air bleed control orifices and can be easily replaced with another one.

REFERENCES:
patent: 3712279 (1973-01-01), Vartanian
patent: 3774583 (1973-11-01), King
patent: 3812831 (1974-05-01), Scott et al.
patent: 3896777 (1975-07-01), Masaki et al.
patent: 3913540 (1975-10-01), Hayashi
patent: 3915132 (1975-10-01), Thornburgh
patent: 3924589 (1975-12-01), Nohira et al.
patent: 3962868 (1976-06-01), Matumoto et al.
patent: 3977373 (1976-08-01), Sand
patent: 3978831 (1976-09-01), Yoshikawa

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