Electric compressor with integrated vapor injection circuit

Abstract

An electric scroll compressor configured to compress a refrigerant for use with a vapor injection system is provided. The compressor includes refrigerant inlet and outlet ports, as well as a vapor injection port. The housing includes a valve plate with at least one vapor injection channel. A compression device includes a stationary spiral and a rotating spiral. The rotating spiral and the stationary spiral form compression chambers for drawing the refrigerant from the intake volume and compressing the refrigerant as the drive shaft rotates about the central axis. The valve plate includes at least one vapor outlet port, in conjunction with the at least one vapor injection channel, to allow vapor to enter a compression chamber formed between the stationary spiral and the rotating spiral.

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