Rotary Variable Capacity Compressor

Abstract

The invention discloses a rotary variable capacity compressor, comprising: a casing; a crankshaft; a first cylinder and a second cylinder, the first cylinder and the second cylinder are arranged on the crankshaft at intervals, and a first cylinder is defined in the first cylinder. The air cavity is defined in the second air cylinder as the second air cavity; the baffle assembly, the baffle assembly is arranged between the first cylinder and the second cylinder, and the baffle assembly is provided with the first air chamber and the second air chamber respectively. The connected first injection channel and the second injection channel, one of the first injection channel and the second injection channel is provided with an injection valve to control the on-off of the first injection channel or the second injection channel, the minimum of the first injection channel The cross-sectional area is S1, the working volume of the first air cavity is V1, and S1 / V1=0.08‰-0.8‰. The rotary variable capacity compressor according to the embodiment of the present invention can effectively improve the capacity and energy efficiency ratio of the rotary variable capacity compressor, has a simple and compact structure, high working reliability, high energy efficiency, low vibration and noise, and long service life.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to a rotary variable capacity compressor. Background technique [0002] The compressor in the related art has a small capacity requirement under ordinary temperature conditions, and single-stage jet compression can be used to improve the efficiency of the compressor to compensate for the impact caused by variable capacity. Double-cylinder compression is used to effectively reduce the exhaust temperature of the compressor, and to achieve the requirement of high capacity and high air output under low temperature conditions. However, the design of the injection channel and the position of the air injection port has an extremely important impact on the capacity, energy efficiency, and vibration noise of the rotary air-jet variable displacement compressor. Requirements; if the area of ​​the injection channel is too large, it will easily cause liquid to be sprayed in some env...

AI Technical Summary

Problems solved by technology

However, the design of the injection channel and the position of the air injection port has an extremely important impact on the capacity, energy efficiency, and vibration noise of the rotary air-jet variable capacity compressor. Requirements: If the area of ​​the injection channel is too large, it will easily cause liquid to be sprayed in some environments, which will not only affect the energy efficiency of the compressor, but also reduce the reliability of the compressor. In addition, it may cause the vibration of the compressor at low frequency And the noise will be greatly deteriorated, and even abnormal sliding blade impact noise will be produced

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