Suction system of hermetic refrigeration compressor

Details Suction system of hermetic refrigeration compressor Suction system of hermetic refrigeration compressor

1987-04-02

1988-07-05

Smith, Leonard E.

Pumps

With muffler acting on pump fluid

417902, 181403, F04B 3900

Patent

active

047551089

ABSTRACT:
The invention relates to a hermetic refrigeration compressor of the type including a motor compressor unit (1) suspended within a hermetic case (3). The motor compressor unit (1) comprises a cylinder provided with cylinder head (12) defining suction and discharge chambers with their corresponding valves, and a suction muffler set (100). According to the invention, the suction muffler set comprises a small muffler shell (110) mounted outside the cylinder head, and an insulating hollow body (120) lining the suction chamber (13) of the cylinder head (12). The refrigerant gas is led from the suction pipe (18) of the compressor case (3) to the inside of the insulating hollow body (120) by means of a flow leading pipe (115) arranged within the small shell (110) and communicating with its inside through radial openings (117, 116). With this assembly, the pulses of the suction gas are dampened in the small shell (110) with the minimum pressure losses and heat absorption due to the distance between the small shell ( 110) and the cylinder and to the lining of the suction chamber (13) with the hollow body (120), which is made of thermal insulating material as well as the small shell (110) and the flow leading pipe (115).

REFERENCES:
patent: 4370104 (1983-01-01), Nelson et al.
patent: 4415060 (1983-11-01), Bar
patent: 4449610 (1984-05-01), Bar
patent: 4523662 (1985-06-01), Tanaka et al.
patent: 4573880 (1986-03-01), Hirano et al.

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