Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1988-02-05
1989-12-12
Vrablik, John J.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
418 55, F04B 3504, F04C 1804, F04C 2902
Patent
active
048864277
ABSTRACT:
A hermetic scroll compressor comprising a compressor component and an electric motor arranged respectively in upper and lower portions of a closed housing. The compressor component includes fixed and orbiting scrolls in mesh with each other. A frame is fixedly connected to the fixed scroll and supports the orbiting scroll for orbiting motion, with at least one passage group of a plurality of vertically extending passages being provided at a peripheral surface of the frame for communicating a space above the compressor component with a space between the compressor component and the electric motor. One of th e passages has a higher fluid resistance than the remaining passages, with the passage having high fluid resistance being vertically aligned with a passage provided at the periphery of the electric motor for communicating the space above the electric motor with a lubricating oil reservoir below the electric motor. A discharge pipe communicating with the outside of the closed housing is connected thereto at a location remote from the passage group as viewed in a rotational direction of a rotor of the electric motor.
REFERENCES:
patent: 4730997 (1988-03-01), Tamura et al.
Sakurai Kazuo
Tamura Takahiro
Hitachi , Ltd.
Vrablik John J.
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