Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1991-12-02
1993-10-12
Bertsch, Richard A.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
184 616, F04B 3902
Patent
active
052520390
ABSTRACT:
An enclosed motor-driven compressor includes a vertical crankshaft rotatably supported by two ball bearings and having an eccentric portion through which a motor element and a compressor element are operatively connected. The two ball bearings are disposed on opposite sides of the eccentric portion so that a reaction force of a piston which is exerted on the eccentric portion is supported evenly by the ball bearings. With the ball bearings thus arranged, the load on the crankshaft is lowered and the efficiency of the motor element is increased. A lubricating oil held at the bottom of a container is sucked through an internal groove of the crankshaft and then supplied from outlets to the respective ball bearings. The ball bearings thus lubricated have a prolonged service life. The compressor may have an oil sump disposed either above or below the ball bearing for improving lubricating condition of the ball bearing.
REFERENCES:
patent: 1990305 (1935-02-01), Myers
patent: 2738122 (1956-03-01), Gardiner
patent: 2875850 (1959-03-01), Glass
patent: 3248044 (1966-04-01), Parker
patent: 3663127 (1972-05-01), Cheers
patent: 3807907 (1974-04-01), Gannaway
patent: 4063853 (1977-12-01), De Grant
patent: 4396361 (1983-08-01), Fraser
patent: 4597720 (1986-07-01), Friedrichs
patent: 4632644 (1986-12-01), Fritchman
patent: 4700808 (1987-10-01), Maentjens
patent: 5038891 (1991-08-01), Wallis
patent: 5046930 (1991-09-01), Lindstrom
Kawai Hideki
Mangyo Masao
Osaka Masahiko
Wada Satoshi
Bertsch Richard A.
Korytwyk Peter
Matsushita Refrigeration Co.
LandOfFree
Enclosed motor-driven compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Enclosed motor-driven compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enclosed motor-driven compressor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1900595