Patent ID: 8444403
Filing Date: 2013-05-21
Classification: F04C

Abstract:
1. A self-sealing mechanism for a scroll compressor, disposed inside a frame of the scroll compressor at a position between a back-pressure chamber and a fixed scroll, the self-sealing mechanism comprising: a groove, in communication with the back-pressure chamber; an accommodating space, in communication with the groove; a one-way valve, disposed at a first end of the accommodating space adjacent to the groove, so as to enable communication between the accommodating space and the groove to be maintained in a normally closed state; and a suction port, formed penetrating from the accommodating space to an entrance of the fixed scroll, wherein the accommodating space stores a lubricating oil transported from the back-pressure chamber through the one-way valve when a pressure of the back-pressure chamber is higher than a preset pressure threshold of the one-way valve; and wherein the suction port extends slantwise downward from a second end, opposite to the first end of the accommodating space and far away from the groove, to the entrance of the fixed scroll, such that a continuous supply of the lubricating oil from the accommodating space is provided by a suction force generated at the entrance of the fixed scroll.