| 摘要 |
Pump or motor with at least one piston body provided in a cylindrical housing 4 which is closed at both ends. The piston body 5 is received in said housing in such a manner that, at both ends of said housing, there is a working compartment 14, said piston body being provided with a cavity shaped in such a manner that it can receive a connecting rod 11, one of the ends of which is connected to the piston body and the other end of which is connected to a crankshaft 2 which is able to pass through the piston body 1. <IMAGE>
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