Patent ID: 6572344
Filing Date: 2003-06-03
Classification: F03C,F04B

Abstract:
A fluid translating device, comprising:a stationary central shaft having first and second end portions and a center portion with a reference axis extending through the first, second, and center portions; a first member securely connected to the first end portion of the stationary central shaft about the reference axis and having an end face and first and second inlet/outlet ports in communication with the end face thereof; a second member securely connected to the second end portion of the stationary central shaft about the reference axis and having a face surface and a plurality of equally spaced blind bores defined therein about the reference axis and extending from the face surface thereof parallel to the reference axis; a camplate rotatably disposed about the reference axis of the stationary central shaft between the first and second members and having a first end face portion in abutting contact with the end face of the first member and a second end face portion angled with respect to the reference axis and having a recess defined therein, a face surface is disposed in the recess and the face surface therein is in communication with the first end face portion thereof; a port plate having a bearing assembly disposed thereabout and being located within the recess of the camplate, the port plate has first and second opposed faces and a plurality of equally spaced formed cavities defined therein about the reference axis between the first and second opposed faces and disposed with the first opposed face thereof being in mating contact with the face surface of the recess in the camplate; a plurality of hollow pistons with each piston thereof having first and second end portions with the first end portion being slideably disposed within the respective blind bores of the second member to define pressure chambers therein and the second end portion thereof being in contact with the other opposed face of the port plate; and an outer input/output member disposed about the camplate and the first and second members, the outer input/output member being secured to the camplate and rotatable about the first and second members.