| 摘要 |
A rotary piston device in which two pistons are mounted in an annular chamber for unidirectional movement therein while moving relatively to each other. Radial elements connected to the piston are journaled on a common axis coinciding with the central axis of the annular chamber and a control member eccentric to the axis nonrotatively but radially slidably engages the radial elements and thereby effects positive control of the relative movement of the pistons during unidirectional movement thereof in the chamber. Fluid passages provide for the supply and removal of fluid from between the opposed ends of the pistons.
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