| 摘要 |
A rotary valve for selectively controlling the direction of fluid flow between a source of pressure fluid and a fluid user. The rotary valve comprises a housing having a stator with a valve face having four diametrically opposed and arcuately spaced ports adapted to register in a selected manner with a plurality of arcuately spaced ports formed in the adjacent face of a coaxially disposed rotor. One of the stator ports is adapted to be communicated to a source of fluid pressure, while a second diametrically opposed port is adapted to be communicated to a reservoir. The remaining diametrically opposed ports in the valve face of the stator are each adapted to be communicated to a fluid user. The rotor has a T-shaped passage connecting three of the ports and a pair of separated transversely extending passages connecting pairs of ports disposed intermediate the ports connected with the T-shaped passages. The transverse passages are disposed at a different depth than the T-shaped passages so that there is no intersection between the passages.
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