Lubrication – Systems – Rotary compressor
Patent
1978-11-16
1980-06-24
Brown, David H.
Lubrication
Systems
Rotary compressor
285319, 415 88, 417372, 417902, F04B 3902
Patent
active
042090806
ABSTRACT:
A lubricating device for use in hermetic compressors and the like wherein a rotating oil pick-up tube is partially immersed in the oil in the compressor sump, and pumps the oil upwardly by means of centrifugal action to the compressor parts which are to be lubricated. The compressor includes a vertical shaft to which the pick-up tube is connected, wherein the shaft has an open hollow lower end including a pair of locking openings in the inner surface of the hollow portion. A molded plastic oil pick-up tube, which is bifurcated at one end so as to form a pair of resilient locking arms, is inserted into the shaft until a pair of locking nibs snap into the corresponding locking openings. In order to properly orient the pick-up tube about its axis so that the locking nibs are aligned with the corresponding openings, a pair of protruding locking ears on the tube are axially aligned with a pair of corresponding slots in the lower edge of the shaft.
REFERENCES:
patent: 502269 (1893-08-01), Baldwin
patent: 2766027 (1956-10-01), Herr
patent: 3410478 (1968-11-01), Geisenhaver
patent: 3413021 (1968-11-01), Potts
patent: 3441202 (1969-04-01), Valbjorn et al.
patent: 3544240 (1970-12-01), Rundell
patent: 3653248 (1972-04-01), Leffers
patent: 3937547 (1976-02-01), Lee-Kemp
patent: 4064900 (1977-12-01), Schmitt
patent: 4097185 (1978-06-01), Wolf
patent: 4128264 (1978-12-01), Oldford
Brown David H.
Hoffman John F.
Jeffers Albert L.
Tecumseh Products Company
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