Lubrication – Lubricators – Lubricant heating and/or cooling device
Patent
1990-09-13
1992-07-14
Lazarus, Ira S.
Lubrication
Lubricators
Lubricant heating and/or cooling device
184 64, 184108, F01M 500, F01P 1108
Patent
active
051294826
ABSTRACT:
A closed lubrication system for use in bearing housings subject to a range of temperatures which isolates the air and lubricant within the bearing housing from potential contamination arising from exposure to ambient air. The invention includes a liquid-displacement expansion chamber assembly which is responsive to temperature changes in the bearing housing to accommodate volumetric expansion and contraction of supply air. A constant level lubricator is provided to maintain the quantity of lubricant at a constant sump level. A lubricant circulation assembly, including a lubricant filter, a lubricant cooler, a lubricant pump, and a sight gauge is also provided. The lubricant circulation assembly and the constant level oiler may form part of the self-contained, integral unit adapted to be selectively connected to the bearing housing. The lubricant pump may be a gear pump. The liquid-displacement expansion chamber assembly includes first chamber open to supply air and isolated from contact with ambient air, and a second chamber open to ambient air, but isolated from contact with supply air. In one embodiment, the first chamber is disposed generally below the second chamber. In a second embodiment, the first chamber is disposed generally laterally of the second chamber.
REFERENCES:
patent: 2072294 (1937-03-01), Clemons
patent: 2979161 (1961-04-01), Lyden
patent: 3003834 (1961-10-01), Pendleton
patent: 3149883 (1964-09-01), Reilly
patent: 3169809 (1965-02-01), Pendleton
patent: 3590857 (1971-07-01), Gruett
patent: 3642327 (1972-02-01), Walther
patent: 4067351 (1978-01-01), Causey
patent: 4434988 (1984-03-01), Warner
A.W. Chesterton Company
Cariaso Alan B.
Lazarus Ira S.
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