초록 ▼

A scroll compressor has an economizer injection line communicating into the scroll compressor chambers. An unloader valve selectively communicates the economizer injection line back to suction. In this arrangement, the fluid ports and passages necessary to achieve the economizer injection are also u

A scroll compressor has an economizer injection line communicating into the scroll compressor chambers. An unloader valve selectively communicates the economizer injection line back to suction. In this arrangement, the fluid ports and passages necessary to achieve the economizer injection are also utilized to achieve suction bypass unloading, and thus the compressor and system design and construction are simplified.

대표청구항 ▼

[ What is claimed is:] [1.] A compressor comprising:(a) a compressor pump unit;(b) a suction inlet and suction passage communicated to a supply of refrigerant to be compressed by said compressor pump unit;(c) at least one economizer injection port communicating with said pump unit at a location down

[ What is claimed is:] [1.] A compressor comprising:(a) a compressor pump unit;(b) a suction inlet and suction passage communicated to a supply of refrigerant to be compressed by said compressor pump unit;(c) at least one economizer injection port communicating with said pump unit at a location downstream of said suction inlet; and(d) an unloader valve for selectively communicating a compressed refrigerant from said pump unit through said economizer injection port to said suction passage.