Patent ID: 7674101

Claim:
A sliding vane provided through a rotor, which is eccentrically installed in a cylinder, so as to cross a central axis of the rotor, the sliding vane reciprocating in a diametrical direction of the rotor and rotating together with the rotor, while diametrically opposite ends thereof contact an inner surface of the cylinder and axially opposite ends thereof contact respective covers of the cylinder, the sliding vane comprising: a vane body, having a rectangular planar shape, with a spacer formed at a central position through the vane body and extending in a direction, in which the sliding vane reciprocates, and a plurality of plate seating slots, each having a predetermined depth towards a central axis of the vane body, and formed in respective diametrical opposite ends of the vane body, the plate seating slots being symmetrical based on the central axis of the vane body; two pairs of compression plates, each having a rectangular planar shape, provided in the respective plate seating slots, with a plurality of first springs provided in a diametrically inner end of each of the compression plates to provide a pushing force in a direction of the inner surface of the cylinder, a sealing rod insertion slot formed in a diametrically outer end of each of the compression plates, and a second spring provided between axially inner ends of the adjacent compression plates to provide a pushing force in directions of the covers; and a sealing rod inserted throughout an entire length of the sealing rod insertion slots of the adjacent compression plates placed in each of the plate seating slots, the sealing rod having surface hardness and strength greater than surface hardness and strength of the compression plate.