Motor-compressor with means to reduce noise

Details Motor-compressor with means to reduce noise Motor-compressor with means to reduce noise

1989-09-29

1990-09-25

Nilson, Robert G.

Pumps

Motor driven

Electric or magnetic motor

29888025, 417902, F04B 3912, F04C 2900

Patent

active

049589903

ABSTRACT:
A hermetically sealed compressor unit includes a hermetically sealed casing having a side wall with a cylindrical inner surface; an electric motor is positioned within the casing and includes a stator with a cylindrical outer wall having an interfering fit with the casing side wall inner surface; a rotary compressor unit driven by the motor includes a cylinder spaced from the motor and having a cylindrical outer wall welded to the casing side wall at selected positions; and at least one stiffening ring positioned adjacent the cylinder and having a cylindrical outer wall of a larger diameter than said cylinder outer wall and having an interfering fit with the casing side wall inner surface.

REFERENCES:
patent: 4105374 (1978-08-01), Scharf
patent: 4623304 (1986-11-01), Chikada et al.
patent: 4744737 (1988-05-01), Yamamura

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