To dispense with eh precise grinding of a connection surface between respective parts by forming other one of a main bearing and an auxiliary bearing and a cylinder integrally.
A integral cylinder 16 integrated by a main bearing part 17 in response to a main boarding 9 and a cylinder part 18 in response to a cylinder is formed. A processing of a curvature R is applied on the corner 21 for connecting the main bearing part 17 of the integral cylinder with the cylinder part 18 and a vane holding groove 20 is provided on the outer periphery of a roller 4 and the tip of a vane 7 is inserted in the vane holding groove 20 and connected with the roller 4. Thereby, as the cylinder and the main bearing 9 are processed integrally, the precise grinding of the connection surface of the cylinder with the main bearing 9 is dispensed and the number of ground surface can be reduced.
| JP2012215119 | VANE PUMP |
| JP2006097549 | COMPRESSOR |
| JP2006037894 | COMPRESSOR |
ARAKI TOKINORI
HARADA TERUMARU
