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An oscillatory fluid powered motor includes a cylindrical body closed at its opposite ends by head members to define a chamber. Each head member has a central opening in aligned relationship with the longitudinal axis of the cylindrical body for receiving the opposite ends of a shaft. At least one v

An oscillatory fluid powered motor includes a cylindrical body closed at its opposite ends by head members to define a chamber. Each head member has a central opening in aligned relationship with the longitudinal axis of the cylindrical body for receiving the opposite ends of a shaft. At least one vane is structurally associated with the shaft for rotation therewith, and extends radially of the cylindrical housing from the shaft. At least one stationary stator is attached to the interior wall of the cylindrical housing and extends radially of the housing. The cylinder heads include a bearing surface surrounding the central openings, and a ring seal concentrically disposed with and radially spaced from the central openings. The vane has a peripheral seal which sealingly contacts the bearing surface of each cylinder head, the interior wall surface of the cylindrical body and a portion of each ring seal. Similarly, the stator has a peripheral seal which sealingly contacts the bearing surface of each cylinder head, the peripheral surface of the shaft, and a portion of each ring seal.

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An oscillatory fluid powered motor including a cylindrical body defining a chamber, first and second head members disposed one on each end of the body member in sealing relationship therewith, and each having a central aperture in aligned relationship with the longitudinal axis of the cylindrical bo

An oscillatory fluid powered motor including a cylindrical body defining a chamber, first and second head members disposed one on each end of the body member in sealing relationship therewith, and each having a central aperture in aligned relationship with the longitudinal axis of the cylindrical body, and each having an annular groove surrounding said aperture in spaced relation therefrom, and each having an inset bearing surface on the side thereof exposed to said chamber, ring seal means disposed in said annular groove, at least one elongate stator located on the inner surface of said cylindrical body and extending into said chamber and including first and second ends in spaced relation from the bearing surface of the first and second heads and an outer edge extending parallel with the longitudinal axis of the cylindrical body and having a stator groove around the first and second ends and the outer edge, a rotor assembly including shaft means having a first end received in the aperture of the first head and a second end rotatably received in the aperture of the second head and including an enlarged section of circular cross section and diameter greater than the diameter of the shaft providing a peripheral bearing surface extending generally between the first and second head members where the peripheral bearing surface is in selectively spaced parallel relation with the outer edge of the stator and where each end of the enlarged section respectively contacts a portion of the ring seal means of the first and second heads, and further including at least one vane member extending radially from the enlarged section having a vane groove around the periphery thereof, vane seal means received in the vane groove to contact the inset bearing surface of the first and second heads, the inner surface of the cylindrical body and a portion of the ring seal means of each head adjacent the enlarged section of the rotor assembly to provide fluid seals, stator seal means received in the stator groove to contact the inset bearing surface of the first and second heads, the peripheral bearing surface of the enlarged section of the shaft and a portion of the ring seal means to provide fluid seals between the stator and enlarged portion of the shaft and the first and second heads, and fluid inlet and fluid outlet means to the chamber to selectively vary fluid pressure on opposite sides of the vane member to move the vane member and rotate the shaft.