Pumps – With muffler acting on pump fluid
Patent
1985-05-20
1986-03-04
Croyle, Carlton R.
Pumps
With muffler acting on pump fluid
417313, 417902, F04B 3912
Patent
active
045738815
ABSTRACT:
The invention relates to an encapsulated motor-compressor unit for a refrigerator. The unit includes a capsule in which is resiliently mounted a combined or integrated motor and compressor having a common housing casting. The housing casting defines a cylinder for receiving a piston and a sound damping chamber. The housing casting has pressure and suction chambers at one end thereof and a suction passage which extends from the sound damping chamber to the suction chamber. The efficiency of the unit is improved by providing a tubular insert of thermally insulating material in the suction passage to reduce the transfer of heat from the compressor cylinder to the inlet gas in the suction passage.
REFERENCES:
patent: 2504528 (1950-04-01), Hume
patent: 3396908 (1968-08-01), Vind
patent: 3513476 (1970-05-01), Monden et al.
patent: 3514225 (1970-05-01), Monden et al.
patent: 4239461 (1980-12-01), Elson
patent: 4370104 (1983-01-01), Nelson et al.
patent: 4401418 (1983-08-01), Fritchman
patent: 4411600 (1983-10-01), Itagaki et al.
patent: 4486153 (1984-12-01), Romer et al.
Croyle Carlton R.
Danfoss A/S
Easton Wayne B.
Neils Paul F.
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