| 摘要 |
The invention refers to an annular motor with rotary shaft, driven by a fluid under pressure, intended for various motor drives. The motor consists of an external fixed half-casing (1), which is tightly joined to an internal half-casing (13). The two half-casings enclose an annular space. The internal half-casing (13) is mobile and can rotate together with a rotary shaft (12), supported by bearings (11) fixed on walls (10), which form one piece with external fixed half-casing (1). Inside the internal half-casing (13) several pistons (15) are fixed, which have packings (16). At the periphery of the external half-casing (1) radial cylinders (2) are mounted, which communicate with the internal space formed by the two half-casings (1 and 13). Inside the radial cylinders (2) there are partition walls (3) with packings (4) which periodically penetrate into the internal space of half-casings (1 and 13), being pushed radially by compression springs (6) and retracted with the help of cams (7) fixed at the ends of arms (17) which form one piece with rotary shaft (12). The fluid under pressure penetrates into the internal space of half-casings (1 and 13) through pipes (19) with valves (20) driven by cams (21) mounted on the back of arms (17).
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