REDUCTION OF NOISE, VIBRATION, HARSHNESS AND GAS PULSATION IN COMPRESSOR FOR AIR-CONDITIONING

摘要

PROBLEM TO BE SOLVED: To provide a rear housing for a compressor to reduce noise, vibration and harshness without increasing the total size of the compressor, and without causing the flow loss.

SOLUTION: The rear housing (20) has an outer wall (22) and an inner wall (24) comprising a suction chamber (26) to store a low pressure fluid and a discharge chamber (28) to store a high pressure fluid. An inlet (30) and an outlet (34) are fluid-communicated with the suction chamber and the discharge chamber respectively. The outlet has a discharge passage (36) comprising a tubular member (38) projecting into the discharge chamber. A side wall (44) of the tubular member has a plurality of holes (50) to fluid-connect the discharge chamber and a discharge passage. The total sectional area of a plurality of the holes is substantially equal to the cross sectional area of the discharge passage, which brings about an appropriate amount of fluid flow in a state where the loss is minimized.

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