ROTARY COMPRESSOR

摘要

A rotary compressor includes a cylinder with a cylinder chamber, a piston, a blade and a pair of bushes. The piston is movable-within the cylinder chamber. The blade is integrally formed with the cylinder or piston and penetrates a groove formed in the other to segment the cylinder chamber into high and low pressure chambers. The bushes are provided at the groove and sandwich the blade from both sides of the blade. At least one of the pair of bushes includes an oil supply passage formed from a blade-side sliding surface to a groove-side sliding surface, a blade-side oil reservoir formed on the blade-side sliding surface, and a groove-side oil reservoir on the groove-side sliding surface. Ends of the oil supply passage open to the blade-side and groove-side oil reservoirs. The groove-side oil reservoir being wider than the blade-side oil reservoir.

主权项

1. A rotary compressor comprising:
a cylinder including a cylinder chamber; a piston configured to eccentrically rotate within the cylinder chamber; a blade integrally formed with one of the cylinder and the piston and penetrating a groove formed in the other of the cylinder and the piston to segment the cylinder chamber into a high pressure chamber and a low pressure chamber; and a pair of bushes provided at the groove and sandwiching the blade from both sides of the blade to support the blade, at least one of the pair of bushes including
an oil supply passage formed from a blade-side sliding surface to a groove-side sliding surface,a blade-side oil reservoir formed on the blade-side sliding surface, one end of the oil supply passage opening to the blade-side oil reservoir, anda groove-side oil reservoir on the groove-side sliding surface, an other end of the oil supply passage opening to the groove-side oil reservoir, and the groove-side oil reservoir being wider than the blade-side oil reservoir.