| 摘要 |
A fluid motor is described for a pneumatic or hydraulic drive system, comprising: at least one piston means; at least one cylinder means, motion conversion means and a sleeve 5 means. The or each cylinder means and an end of the or each piston means is located in a corresponding one of the cylinder means defines a chamber. The or each cylinder means is operatively coupled to a pressure generation and transmission system arranged to cause alternating flow of fluid into and out of the or each chamber, thereby to cause reciprocating movement of the piston means. The motion conversion means comprises: at least one .0 portion extending continuously and circumferentially around a central axis and extending in part longitudinally relative to the central axis, for example a non-linear groove, and at least one linking means. The at least one portion and the or each linking means are relatively rotatable about the central axis. A one of the at least one linking means or the at least one portion is coupled to the at least one piston means so that reciprocating movement .5 of the at least one piston means causes reciprocating movement thereof. The at least one linking means and the at least one portion are configured to cooperate whereby the reciprocating movement of the at least one piston means causes relative rotary motion of the other of the portion and the linking means about said central axis. The sleeve means is rotatably mounted about the central axis, wherein the other of the portion and the at least .0 one linking means is coupled to the sleeve means so that the reciprocating movement of the at least one piston means causes rotary motion of the sleeve means about the central axis. -Q0 Cl~q coc -0L C) |
