4results about How to "Improve compressor efficiency" patented technology

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

The utility model discloses a multi-split air-conditioning parallel system without stopping an indoor fan during defrosting, which relates to the field of air-conditioning systems and comprises a plurality of indoor units arranged in parallel, a defrosting system and a heat supply system, the defrosting system and the heat supply system are respectively connected with the indoor units in parallel, the defrosting system operates at low frequency, and the heat supply system operates at high frequency to ensure sufficient refrigerant. During defrosting, one outdoor unit switches the four-way valve to defrost, and other outdoor units still operate in a normal heating mode; in this way, through effective control, the outdoor units are sequentially defrosted, continuous heat supply can be achieved, it is guaranteed that the indoor unit fan does not stop due to cold air, and the comfort of the indoor environment is guaranteed.

This invention relates to a compressor with movable eccentric flexible force compensation function, specifically a compressor with movable eccentric flexible force compensation function. The invention includes a rotation device between the moving scroll component and the supporting component; the rotation device comprises a rigid shaft component; one end of the rigid shaft component is fixedly mounted in a rigid shaft hole on the moving scroll component or the supporting component, and the other end is inserted into a limiting groove on the supporting component or the moving scroll component; a semi-rigid component is disposed in the limiting groove; the rigid shaft component and the semi-rigid component are in contact with the sidewall of the limiting groove and the semi-rigid component. The technical solution of this invention solves the problem in the prior art where direct rigid contact in the radial direction between components easily leads to collision damage under accidental impact during abnormal operation, thus improving reliability.

A rotary compressor is provided that may include a casing having an oil storage space; a cylinder; a main bearing and a sub bearing; a rotary shaft; a roller having a vane slot and a back pressure chamber; and at least one vane. An oil supply hole that communicates the back pressure chamber with the oil storage space may pass through the main bearing or the sub bearing, or through the roller. Accordingly, as high-pressure oil is supplied directly to a rear end surface of the vane, it is possible to increase efficiency of the compressor by increasing a back pressure on the vane and suppressing a delay in starting the compressor, and it is also possible to reduce collision noise and wear in the vane and the cylinder by suppressing vibration of the vane.