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US 5,833,444 AGranted
Fluid driven motors
OwnerGary L. Harris, Hector D. Susman +1inventors
InventorsGary L. Harris, Hector D. Susman, Kenneth R. Stewart
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OwnerGary L. Harris, Hector D. Susman +1inventors
InventorsGary L. Harris, Hector D. Susman, Kenneth R. Stewart
Estimating the term…
There is disclosed a fluid driven motor of particular use, for example, in drilling apparatus or in powering underwater excavation apparatus. Known motors suffer from a number of problems, e.g. lack of sufficient hydraulic efficiency. According to one aspect of the present invention there is provided a motor comprising a stator and a rotor rotatably mounted in the stator, wherein the stator is provided with at least one rod recess formed in an inner surface thereof, the stator providing at least one inlet/exhaust port communicating between a surface of the rod recess and an outer surface of the stator, the rotor is provided with a rotor channel and at least one channel for conducting motive fluid from the rotor channel to a chamber between the rotor and the stator, and the at least one rod recess is provided with a rod which, in use, may form a seal between the stator and the rotor.
A motor comprising a stator and a rotor rotatably mounted in said stator, wherein said stator is provided with at least one rod recess formed in an inner surface thereof, the stator providing at least one inlet/exhaust port communicating between a surface of the at least one rod recess and an outer surface of the stator, said rotor is provided with a rotor channel and at least one channel outlet for conducting motive fluid from said rotor channel to a chamber between said rotor and said stator, and said at least one rod recess is provided with a rod which, in use, forms a seal between said stator and said rotor.
Dependencies are inferred from the claim text.