Internal combustion engine device

Details Internal combustion engine device Internal combustion engine device

1976-04-29

1977-06-21

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

040304612

ABSTRACT:
A device inserted in the positive crank case ventilation (PCV) line of an internal combustion engine includes a restricted passageway in the PCV line, and two valve assemblies symmetrically arranged with respect to the restricted passageway. Each valve assembly includes a secondary passageway joining the restricted passageway with a closed valve chamber through a valve seat. A balanced movable valve part in the valve chamber is biased away from the valve seat by a first coil spring in the secondary passageway and is biased toward the valve seat by a second coil spring in the valve chamber. The valve chamber is frusto-conical and tapers inwardly away from the valve seat. The valve member is convex at both its ends and thus forms a restriction with the valve seat at one extreme of its travel, and a restriction with the wall of the valve chamber at the other extreme of is travel. The device increases gasoline mileage and power, and reduces undesirable gaseous emissions.

REFERENCES:
patent: 1220281 (1917-03-01), Smith
patent: 1461662 (1923-07-01), Kawamura
patent: 3157467 (1964-11-01), Daigh et al.
patent: 3181833 (1965-05-01), Adams et al.
patent: 3202145 (1965-08-01), DePaolo
patent: 3431898 (1969-03-01), Driscoll et al.
patent: 3946710 (1976-03-01), Albano et al.
patent: 3958547 (1976-05-01), Ogawa
patent: 3990420 (1976-11-01), Bitterman et al.

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