Lubrication supply system
AssigneeCarrier Corporation
InventorsVishnu M. Sishtla, Scott A. Nieforth
Life of this patent
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Abstract
A lubrication additive recovery system is provided for use with a vapor compression system. The vapor compression system includes a compressor having a bearing, a condenser and an evaporator. The lubrication additive recovery system includes a lubrication ring formed to define first and second through-holes, a first system by which a portion of a required supply of lubrication is drawn from the condenser and provided to the bearing through the first through-holes and a second system by which a remainder of the required supply of lubrication is recovered from the evaporator and provided along with compressor discharge gas to the bearing through the second through-holes.
Claims20
A lubrication additive recovery system for a vapor compression system including a compressor having a bearing, a condenser and an evaporator, the lubrication additive recovery system comprising:
- a lubrication ring formed to define first and second through-holes;
- a first fluid system by which a portion of a required supply of lubrication is drawn from the condenser and provided to the bearing through the first through-holes;
- a second fluid system by which a remainder of the required supply of lubrication is recovered from the evaporator and provided along with compressor discharge gas to the bearing through the second through-holes;
- and
- a controller configured to control respective operations of the first and second fluid systems in accordance with a magnitude of the portion of the required supply of lubrication, which is drawn from the condenser, and in accordance with a magnitude of the remainder of the required supply of lubrication, which is recovered from the evaporator.
A lubrication additive recovery system for a vapor compression system including a compressor having a bearing, a condenser and an evaporator, the lubrication additive recovery system comprising:
- an eductor;
- a pump configured to pump a portion of a required supply of lubrication from the condenser and to the bearing through the eductor such that the eductor recovers a remainder of the required supply of lubrication from the evaporator for provision thereof to the bearing;
- and
- a controller configured to control operations of at least the pump in accordance with a magnitude of the portion of the required supply of lubrication, which is drawn from the condenser, and in accordance with a magnitude of the remainder of the required supply of lubrication, which is recovered from the evaporator.
A bearing lubrication ring assembly, comprising:
- a bearing;
- and
- a lubrication ring disposed proximate to the bearing and formed to define first and second through-holes,
- the first through-holes being receptive of a portion of a required supply of lubrication pumped from a condenser, and
- the second through-holes being receptive of compressor discharge gas and a remainder of the required supply of lubrication drawn from an evaporator by the portion of the required supply of lubrication being pumped from the condenser,
- wherein the bearing lubrication ring further comprises a controller configured to control a pumping of the portion of the required supply of lubrication from the condenser and an eduction of compressor discharge gas and a remainder of the required supply of lubrication drawn from the evaporator in accordance with a magnitude of the portion of the required supply of lubrication, which is pumped from the condenser, and in accordance with a magnitude of the remainder of the required supply of lubrication, which is recovered from the evaporator.
Dependencies are inferred from the claim text.