| 摘要 |
The rotary compressor of an embodiment has a container, a cylinder, closure plates, a roller, a blade, and oil feed grooves. The container stores lubricating oil. The cylinder is accommodated in the container and is cylindrical. The closure plates close the openings of the cylinder and form a cylinder chamber together with the cylinder. The roller rotates eccentrically within the cylinder chamber. The blade divides the inside of the cylinder chamber in the direction of rotation of the roller and is capable of moving into and out of the cylinder chamber as the roller rotates eccentrically. The oil feed grooves are formed in the surfaces of the blade, which face the closure plates. Each of the oil feed grooves extends in the direction of movement of the blade, has a first end in communication with the inside of the container, and has a second end terminating in the blade. The oil feed grooves are each configured so that the second end is located within the second chamber when the blade has protruded farthest into the cylinder chamber and so that the depth of the portion of the oil feed groove, which is located close to the second end, decreases toward a second end surface. |
