Rotary displacement compressor having adjustable internal volume ratio and a method for regulating the internal volume ratio

摘要

PCT No. PCT/SE92/00306 Sec. 371 Date Oct. 29, 1993 Sec. 102(e) Date Oct. 29, 1993 PCT Filed May 12, 1992 PCT Pub. No. WO92/20924 PCT Pub. Date Nov. 26, 1992.A rotary displacement compressor has an adjustable regulator (22) which determines the internal volume ratio of the compressor. The regulator (22) is adjusted in response to the sound level of a sound of compressed working medium, which is sensed by a sound sensor (26) located adjacent to the outlet port (20 ) of the compressor.