Climate-control system having oil cooling control system
AssigneeEmerson Climate Technologies, Inc.
InventorJacob A. Groshek
Life of this patent
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Abstract
A system may include a compressor, a first passageway, a valve and a control module. The compressor includes a compression mechanism operable to compress a working fluid. The first passageway is in fluid communication with an oil sump of the compressor and the compression mechanism. The valve is disposed along the first passageway and movable between an open position allowing lubricant from the oil sump to flow to the compression mechanism and a closed position restricting lubricant from the oil sump from flowing to the compression mechanism. The control module is in communication with the valve and configured to move the valve between the closed position and the open position based on an operating parameter indicative of a temperature of the compression mechanism.
Claims12
A method comprising:
- acquiring a first value of an operating parameter that is indicative of a temperature of a compression mechanism of a compressor, wherein the compression mechanism includes a first scroll and a second scroll, wherein the first scroll includes a first spiral wrap, and wherein the second scroll includes a second spiral wrap that meshes with the first spiral wrap;
- comparing the first value to a predetermined parameter value;
- providing lubricant from an oil sump of the compressor to the compression mechanism of the compressor via a first fluid passageway if the first value is greater than the predetermined parameter value;
- providing the lubricant from the oil sump of the compressor to a motor assembly of the compressor via the first fluid passageway if the first value is greater than the predetermined parameter value;
- providing the lubricant from the oil sump to the compression mechanism via a second passageway formed in a driveshaft of the compressor;
- and
- restricting lubricant from the oil sump to the compression mechanism via the first fluid passageway if the first value is less than the predetermined parameter value,
- wherein the first fluid passageway provides the lubricant to the first and second scrolls of the compression mechanism at a location that is radially outside of the first and second spiral wraps,
- wherein a portion of the first fluid passageway is disposed outside of a shell assembly of the compressor, and
- wherein the first fluid passageway is coupled with a first passage in a bearing housing of the compressor, and wherein the first passage provides the lubricant to the location.
Dependencies are inferred from the claim text.