| 摘要 |
A pair of housing side sections and a pair of circular housing end sections cooperate to define a cylindrical chamber containing a bladed rotary valve element mounted on a shaft that is journaled in the end sections. The side sections have semicylindrical surfaces that cooperate to provide the cylindrical wall surface of the chamber, and respective inlet and outlet passageways between the chamber and the exterior of the housing. The housing end sections have circular edge surfaces of the same diameter as that of the cylindrical chamber, and circumferential flanges projecting radially outwardly from the circular edge surfaces and received in circumferential recesses in the cylindrical wall of the chamber. The side housing sections have interengaging surfaces projecting radially outwardly from the chamber, and a device extending through the interengaging surfaces for securing all of the housing sections together.
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