5 results about "Rotary compressor" patented technology

The invention discloses a multi-cylinder rotary compressor. In a sealed cylinder shell, an electric motor formed by a stator fixed onto a shell and a rotor rotating in an inner diameter of the stator,and a compressing mechanism part driven by the electric motor are stored; the compressing mechanism is at least formed by element parts such as more than two air cylinders each provided with a compressing cavity, a central diaphragm between the air cylinders, a main bearing and an auxiliary bearing for sealing opening ends of the compressing cavities, and a crankshaft fixed with the rotor and insliding fit to the main bearing and the auxiliary bearing; and the outer peripheries of the at least two element parts are welded and fixed onto the inner periphery of the cylinder shell. According tothe multi-cylinder rotary compressor provided by the invention, the outer peripheries of the at least two element parts of the air cylinders, the central diaphragm, the main bearing and the auxiliarybearing are welded and fixed onto the inner periphery of the cylinder shell 2a, so that the anti-separation strength of the compressing mechanism part can be greatly improved.

The invention relates to a connecting structure of refrigerant suction pipe of a multicylinder rotating compressor, comprising: a casing, forming the appearance of the compressor and holding motor and mechanism and formed with refrigerant discharge pipeline; a cylinder part composed of top and bottom refrigerant compressing cylinders and arranged on the mechanism; L-shaped suction pipes, connected with the top and bottom cylinders and make them able to suck refrigerant; and an erect refrigerant inlet pipeline connected with the L-shaped suction pipes and making the circulating refrigerant enter. Omitting the used liquid tank, it can reduce the manufacturing cost of outdoor air-conditioner, able to reduce the bulk of multicylinder rotating compressor, and thus having an efficacy that more compressors can be arranged in a fixed room.

The invention discloses a variable capacity rotary compressor capable of preventing severely wearing of a roller exterior surface. The variable capacity rotary compressor comprises crusts of a first and second compressing chambers which are divided by each other; a first and second rollers arranged respectively inside the first and second compressing chambers; a first vane for setting off the first compressing chamber according to a radial advancing and retreating of the first roller; a second and third vanes slidely supported with each other for setting off the second compressing chamber according to a radial advancing and retreating of the second roller; a vane controller for restricting or releasing the third vane and for controlling the compressing volume; wherein the second vane comprises an extension part extended for covering a front end of the third vane.