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AssigneeWestinghouse Air Brake Technologies Corporation
InventorsCharlie E. Jones, Michael V. Kazakis
Estimating the term…
A lubrication apparatus for an anti-rotation assembly of an oiless rotary scroll compressor is disclosed. The scroll compressor includes a stationary scroll element and an orbiting scroll element which orbits about the stationary scroll element in a non-rotational fashion. At least one anti-rotation assembly is provided for preventing relative rotation between the orbiting and stationary scroll elements. The anti-rotation assembly, which includes a first rotational bearing component mounted on the interior of the housing, a second rotational bearing component mounted on the orbiting scroll element and an offset crank member interconnecting the first and second rotational bearing components, is lubricated via a lubrication channel. The lubrication channel extends from a lubrication port disposed on the exterior of the housing, through the first rotational bearing component, thereafter through a channel provided in the offset crank member, thus allowing the lubricating agent (e.g., grease) to reach the second rotational bearing component. The provided anti-rotation assembly can thus be periodically lubricated without significant contact between the lubricating agent and the gas being compressed (e.g., air or refrigerant). Accordingly, any possible contamination of the exiting compressed gas is significantly reduced.
A lubrication apparatus for an anti-rotation assembly of a scroll compressor, such scroll compressor including a housing, a stationary scroll element mounted within such housing substantially stationary with respect to such housing and having a stationary spiral flange projecting therefrom, an orbiting scroll element disposed within such housing and having an orbiting spiral flange projecting therefrom, such stationary and orbiting spiral flanges being intermeshed and nested with one another to define a spiraling compression pocket therebetween, each of such stationary and orbiting scroll elements having a substantially central axis, an orbital drive mechanism for driving such central axis of such orbiting scroll element in an orbit at a radius of orbit about such central axis of such stationary scroll element, and at least one anti-rotation assembly disposed within such housing for maintaining such orbiting scroll element substantially non-rotational with respect to such stationary scroll element during such orbit of such orbiting scroll element about such stationary scroll element, said lubrication apparatus comprising:
In a scroll compressor including a housing, a stationary scroll element disposed within such housing substantially stationary with respect to such housing, such stationary scroll element including a stationary spiral flange, an orbiting scroll element disposed within such housing, such orbiting scroll element including an orbiting spiral flange, such stationary and orbiting spiral flanges being intermeshed and nested with one another to define a spiraling compression pocket therebetween, each of such stationary and orbiting scroll elements having a substantially central axis, an orbital drive mechanism for driving such central axis of such orbiting scroll element in an orbit at a radius of orbit about such central axis of such stationary scroll element and at least one anti-rotation assembly disposed within such housing, an improved lubrication apparatus for providing periodic lubrication of such at least one anti-rotation assembly disposed within such housing, said improved lubrication apparatus comprising:
A scroll compressor including an anti-rotation device and an improved lubrication apparatus for said anti-rotation device, comprising:
Dependencies are inferred from the claim text.