Compressor having an oil residue pool
AssigneeSanyo Electric Co., Ltd.
InventorsYasunori Kiyokawa, Kenji Aida, Kazuyoshi Sugimoto
Life of this patent
Estimating the term…
Abstract
A compressor comprises, in a container body, an electric element, and a compressive element driven by the electric element. An oil storage is provided in the bottom, and an oil pump is provided to suck up oil from the oil storage. The oil pump includes a cylinder fixed to a lower support frame, a rotator axially installed on the lower end of a driveshaft and operative to rotate within an inner space of the cylinder, and a suction pipe having an upper end connected to a communication notch formed in the cylinder and a lower end inserted and arranged in the oil storage. In this compressor, the upper end of the suction pipe is protruded into the communication notch of the cylinder to configure an oil residue pool.
Claims3
A compressor, comprising:
- a container having a container body;
- an electric element including a stator having an outer circumferential portion fixed on an inner wall of the container body and a rotor rotatably disposed on a central portion of the stator, and provided in the container;
- a compressive element driven by the electric element;
- an oil storage region in the bottom of the container;
- an oil pump provided to suck up oil from the oil storage region, the oil pump including
- a cylinder fixed to a support frame attached in the container,
- a rotator attached to the lower end of a driveshaft axially installed on the rotor of the electric element and operative to rotate within an inner space of the cylinder, and
- a suction pipe having an upper end connected to a communication notch formed in the cylinder and a lower end inserted and arranged in the oil storage region;
- and
- an oil residue pool provided in the communication notch of the cylinder that is structured and arranged to retain some oil within the oil pump once the compressive element stops,
- wherein the oil residue pool is configured such that the upper end of the suction pipe is projected into and attached to the communication notch of the cylinder.
Dependencies are inferred from the claim text.