2-CYLINDER ROTARY COMPRESSOR AND REFRIGERATING CYCLE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a 2-cylinder rotary compressor capable of reducing members and simplifying its structure by decreasing the number of balancers provided in a rotor, lowering vibrations due to whirling of the rotor by improving the attachment position of the balancer of the rotor, decreasing loads on a bearing, and improving its efficiency and credibility.;SOLUTION: This 2-cylinder rotary compressor is provided with a first and a second roller respectively rotating eccentrically in a first and a second cylinder, that are respectively fitted in a first and a second eccentric part with their respective phase angles displaced at a rotary angle of 180° relative to a rotary shaft fixed in the rotor of an electric element, and bearings sealing the respective openings of both cylinders. The first balancer is provided between both of the eccentric parts of the rotary shaft, and the second balancer is provided on the side closer to the bearing of the rotor of the electric element.;COPYRIGHT: (C)2008,JPO&INPIT