Fluid handling – Systems – Multi-way valve unit
Patent
1997-11-13
1998-12-15
Fox, John
Fluid handling
Systems
Multi-way valve unit
13762516, 137353, F16K 11085
Patent
active
058486119
ABSTRACT:
A valve (10) for applying vacuum to selected ones of a plurality of vacuum-operated devices (B-F) in a vehicle includes a valve core (30) which is rotatable in a valve sleeve (20) between a plurality of predetermined rotational positions. A plurality of circumferentially spaced passages (60a-60f) extend axially in the valve sleeve (20). Each passage (60b-60f) has a first end portion (66b-66f) for connection with a respective one of the devices (B-F) and a second end portion (68a-68f) which is selectively connectable with the vacuum port (44a). A vacuum port (44a) on the valve sleeve (20) is connected with a vacuum source (V) in the vehicle. A control groove (82) on the outer periphery (80) of the valve core (30) is in fluid communication with the vacuum port (44a) when the valve core (30) is in the predetermined rotational positions. The control groove (82) is in fluid communication with predetermined ones of the second end portions (68a-68f) of the passages (60a-60f) when the valve core (30) is in the predetermined rotational positions.
REFERENCES:
patent: 3090396 (1963-05-01), Rudelick
patent: 3129644 (1964-04-01), Anderson
patent: 3134403 (1964-05-01), Rudelick
patent: 3192954 (1965-07-01), Gerhold et al.
patent: 3659515 (1972-05-01), Galaniuk
patent: 3788599 (1974-01-01), Cloyd
patent: 3814129 (1974-06-01), Cioffi
patent: 4049020 (1977-09-01), Neveaux
patent: 5129859 (1992-07-01), Yagi
Fox John
TRW Inc.
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