Multistep fluid control valve

Details Multistep fluid control valve Multistep fluid control valve

1975-07-31

1976-11-30

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119A, 1376275, 236 92R, F02M 2506, F02P 504, G05D 2700

Patent

active

039942694

ABSTRACT:
The multistep fluid control valve comprises a valve case having a plurality of valve seats. A valve stem is provided in the valve case and is capable of being continuously or stepwise displaced axially. At least one valve body is shiftably mounted on the valve stem it is urged toward the corresponding one of the valve seats, but normally arrested at a position clear of the valve seat. This valve body closes the valve seat when the valve stem is moved a predetermined amount. At least one further valve body is provided axially in line with the valve stem so as to cooperate with a corresponding one of the valve seats. The further valve body is actuated by a further stepwise movement of the valve stem so that the corresponding valve seat is opened or closed by the further valve body.

REFERENCES:
patent: 2807281 (1957-09-01), Allen et al.
patent: 3436017 (1969-04-01), Elmer
patent: 3455335 (1969-07-01), Pekarek
patent: 3461913 (1969-08-01), Scott
patent: 3478782 (1969-11-01), Peeples
patent: 3479096 (1969-11-01), Cruse
patent: 3680533 (1972-08-01), Soberski
patent: 3789811 (1974-02-01), Franz et al.
patent: 3800759 (1974-04-01), Cedar
patent: 3812832 (1974-05-01), Scott

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