F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
103/12, 103/90
F04C 2/356 (2006.01) F01C 21/08 (2006.01)
Patent
CA 1172106
POWER TRANSMISSION ABSTRACT A variable displacement vane pump is provided in which a pair of rings having oval-shaped inner contours are rotatably mounted in side-by-side relationship. The rings are adapted for relative rotation to each other from a first position wherein the inner contours are in register with each other and a moved position wherein the inner con- tours are out-of-register, and means are provided for effecting the relative rotation, which include a gear sys- tem operatively connected to the rings. A rotor member is mounted for rotation within the rings and is formed with a plurality of circumferentially spaced recesses which extend the entire axial length of the rotor. Each of the recesses carries a pair of vanes in abutting relationship. The vanes are mounted for radial movement in the recesses and are adapted for slidable contact with the inner contours of the rings. The vanes form two side-by-side rows of vanes with each row in tracking relationship with the inner contours or the rings. With the inner contours rotated to the first position, rotation of the vanes will pump a maximum volume of fluid through the pump and with the inner contours rotated to the moved position, the vanes will pump a reduced volume of fluid through the pump.
387915
Marks & Clerk
Sperry Corporation
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