ROTARY COMPRESSOR IN WHICH BLADE AND ROLLER ARE INTEGRATED.

摘要

A blade (8) defining a cylinder chamber (41) in a cylinder (4) into a compression chamber (X) and a take-in chamber (Y) is integrated with a roller (7) so as to project outwardly in the radial direction thereof, and a cylindrical column shaped support member (11) having a receiving groove (11a) for receiving the forward end portion of the blade (8) is rotatably provided in the cylinder (4). The roller (7) is rotated relatively with an eccentric shaft portion of drive shaft (22), to which the roller (7) is coupled and the lubricant is constantly supplied. With this arrangement, relative movement between the blade (8) and the roller (7) can be eliminated, power loss due to the friction can be reduced, leakage of gas from a chamber in th rear of the blade (8) into the take-in chamber (Y) and the compression chamber (X) can be eliminated, and further, leakage of gas from the compression chamber (X) to the take-in chamber (Y) can be reduced, thereby improving the displacement efficiency and the indication efficiency.