Rotary fluid device

Claim 2

A rotary fluid device comprising a cylindrical body having a cylindrical recess therein, an annular bearing member positioned in the cylindrical recess of the body, an annular rotor ring positioned in and mounted on the annular bearing to be journaled thereby, said rotor ring having a plurality of diametrically opposed recessed surfaces extending from the interior opening therein, a cylindrical rotor member journaled in said body about an axis eccentric with the axis of the recess in the body and the rotor ring, said cylindrical rotor member having a plurality of diametrically opposed grooves corresponding to the grooves in the rotor ring, vane members slidably mounted in the grooves of the rotor member with diametrically opposed vanes being mechanically connected to move simultaneously with said vanes being aligned with the grooves in the rotor member and continuously positioned therein, a manifold including inlet and outlet passages communicating with the interior of the rotor ring and positioned at one axial end of the cylindrical body adjacent the rotor member with the passages therein positioned in direct communicating relationship with an axial end of the recess of the annular rotor ring to direct flow of fluid into and out of the recess in the rotor ring, and shaft means connected to the rotor member and journaled in the cylindrical body extending therefrom being movable with operation of the fluid device.

Claim 3

The rotary fluid device of claim 1 in which the vane members are generally rectangular in cross section and extend the width of the rotor member.

Claim 4

The rotary fluid device of claim 2 in which the vane members have recessed surfaces on corresponding similar sides with the recessed surfaces extending from the bottom edge of the vane members positioned within the recesses of the rotor member to a position removed from the top edge of a vane member and such that the recessed surfaces extend out of the recesses in the rotor member.

Claim 5

The rotary fluid device of claim 3 in which the recesses in the rotor ring are substantially rectangular and extend across the width of the rotor ring to provide a mating surface with the exposed edge of the vane memberS.

Claim 6

The rotary fluid device of claim 4 in which the annular bearing is a cylindrical bearing ring of the needle-bearing type having a width dimension equal to the width dimension of the rotor ring and the rotor member.

Claim 7

The rotary fluid device of claim 5 in which the manifold includes inlet and outlet ports extending through the cylindrical body from one end thereof, and including a manifold porting plate aligned therewith and positioned at one side of the rotor ring to provide a restricted fluid entrance from the ports to the recess in the rotor ring.

Claim 8

The rotary fluid device of claim 6 in which the ports in the manifold plate are generally arcuate in shape and disposed on either side of a plane extending through the axis of the rotor member and shaft connected thereto and with a major portion of the areas of such ports being disposed below a similar plane normal to the first named plane and passing through the axis of the recess in the cylindrical body member.

Claim 9

The rotary fluid device of claim 7 in which the device is a pump with the fluid to be pumped being introduced through the inlet passage in the manifold and the shaft rotated from an external means to provide a flow of the fluid from the outlet passage under increased pressure.

Claim 10

The rotary fluid device of claim 7 in which the device is a motor with motive fluid being introduced at the inlet passage under pressure and returned through the outlet passage with rotational movement of the rotor member being transmitted externally through the shaft.

Claim 11

A rotary fluid device comprising, a body member having a cylindrical recess therein, an annular rotor ring positioned in the cylindrical recess of the body and journaled for rotational movement therein about a first axis of rotation, a cylindrical rotor member positioned in the cylindrical recess of the annular rotor ring and journaled in the body about an axis eccentric with the axis of recess of the body and the rotor ring, said cylindrical rotor member having a plurality of grooves positioned therein, vane members slidably mounted in the grooves of the rotor member with diametrically opposed vanes being mechanically connected together to move simultaneously into and out of the grooves in the rotor member, said vane members being adapted to continuously contact the inner surface of the rotor ring, means included in the rotor ring and cooperating with the exposed ends of the vane members to preclude continuous rotation of the rotor member and the vanes relative to the rotor ring, a manifold including inlet and outlet passages positioned adjacent one end of the recess in the rotor ring and communicating with the interior of the recess of the rotor ring and the grooves in the rotor member to direct fluid into and out of the recess in the rotor ring, and shaft means connected to the rotor member and journaled in the cylindrical body extending therefrom being movable with rotation of the rotor ring and rotor member positioned therein.

Claim 12

A rotary fluid device comprising, a body member having a cylindrical recess therein, an annular rotor ring positioned in the cylindrical recess of the body and journaled for rotational movement therein about a first axis of rotation, a cylindrical rotor member positioned in the cylindrical recess of the annular rotor ring and journaled in the body about an axis eccentric with the axis of recess of the body and the rotor ring, said cylindrical rotor member having a plurality of grooves positioned therein, vane members slidably mounted in the grooves of the rotor member with diametrically opposed vanes being mechanically connected together to move simultaneously into and out of the grooves in the rotor member, said vane members being adapted to continuously contact the inner surface of the rotor ring, means included in the rotor ring and cooperating with the exposed ends of the vane members to preclude continuous rotation of the rotor member and the vanes relative to the rotor ring, a manifold including inlet and outlet passages positioned adjacent one end of the recess in the rotor ring and communicating with the interior of the recess of the rotor ring and the grooves in the rotor member to direct fluid into and out of the recess in the rotor ring, and shaft means connected to the rotor member and journaled in the cylindrical body extending therefrom being movable with rotation of the rotor ring and rotor member positioned therein.

Claim 13

The rotary fluid device of claim 10 in which the means included in the rotor ring are a plurality of recessed surfaces extending from the interior recess and being flat to cooperate with flat extremities on the vane members restricting movement of the vane members to the recesses and providing oscillation of the vane members in the recesses with rotation of the rotor member and rotor ring in the cylindrical body.

Claim 14

The rotary fluid device of claim 11 in which the vane members include grooved surfaces to provide for flow of fluid from the grooves in the rotor member to the interior of the rotor ring.

Claim 15

The rotary fluid device of claim 12 in which the inlet and outlet passages include characterized ports connecting the passages to the interior of the rotor ring and in which the ports are disposed symmetrically about the axis of the rotor member and the shaft means connected thereto and substantially removed from a symmetrical location about the axis of the cylindrical recess in the body.