Temperature responsive seal lubrication for rotary mechanisms

Details Temperature responsive seal lubrication for rotary mechanisms Temperature responsive seal lubrication for rotary mechanisms

1977-08-15

1979-04-17

Vrablik, John J.

Rotary expansible chamber devices

Nutating working member

Working member common to plural working chambers

418 76, 418 87, 418 97, 236 93R, 138 45, 138 46, 277 26, G05D 2302, F15D 100, F01C 1900, F01C 2104

Patent

active

041498356

ABSTRACT:
A rotary mechanism including a housing defining an operating chamber having a wall, a shaft journalled in the housing and having an eccentric within the chamber, a rotor within the chamber and journalled on the eccentric, and at least one seal carried by the rotor and slidably engaging the wall. A seal lubricating system is provided and includes an aperture in the wall along with a conduit for directing lubricant to the aperture. A plug partially closes the aperture and has a higher coefficient of thermal expansion than the housing, with the result that an oil-emitting gap is provided and its area changes proportional to temperature, and, thus, oil viscosity, to meter the proper amount of oil for seal lubrication irrespective of temperature.

REFERENCES:
patent: 1768558 (1930-07-01), Andrews
patent: 1871287 (1932-08-01), Whittaker
patent: 1964638 (1934-06-01), Kreidel
patent: 2418671 (1947-04-01), Schweller
patent: 2604077 (1952-07-01), Nast
patent: 2830621 (1958-04-01), Prescott
patent: 2966170 (1960-12-01), Raulins
patent: 3280812 (1966-10-01), Peras
patent: 3340893 (1967-09-01), Lockwood
patent: 3420214 (1969-01-01), Bensinger et al.
patent: 3990818 (1976-11-01), Loyd, Jr.

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