Compressor system and refrigeration device
AssigneeDaikin Industries, Ltd.
InventorsYumemi IWAIDA, Hiroki IKEBE, Takeshi ARAKI
Life of this patent
Estimating the term…
Abstract
A compressor system includes a compressor, and a prediction device configured to predict a failure of a bearing and a drive shaft of the compressor. The compressor includes a motor, a compression section, the drive shaft, and the bearing. Lubricating oil is supplied from a common oil supply source to the compression section and to a sliding portion of the drive shaft and the bearing. The prediction device includes a failure prediction unit configured to predict the failure of the bearing and the drive shaft based on a change in an index indicating deterioration of sealability of the compression chamber.
Claims19
A compressor system comprising:
- a compressor including a motor, a compression section having a compression chamber configured to suck and compress a fluid, a drive shaft coupled to the motor and configured to drive the compression section, and a bearing supporting the drive shaft, lubricating oil being supplied from a common oil supply source to the compression section and to a sliding portion of the drive shaft and the bearing;
- and
- a processor configured to predict a failure of the bearing and the drive shaft of the compressor,
- wherein the processor is configured to predict the failure of the bearing and the drive shaft based on a change in an index indicating deterioration of sealability of the compression chamber.
A compressor system comprising:
- a compressor including a motor, a compression section having a compression chamber configured to suck and compress a fluid, a drive shaft coupled to the motor and configured to drive the compression section, and a bearing supporting the drive shaft;
- and
- a processor configured to predict a failure of the bearing and the drive shaft of the compressor,
- wherein sliding portions of the bearing and the drive shaft are made of a metal material, and
- wherein the processor is configured to predict the failure of the bearing and the drive shaft based on a change in an index indicating a drive state of the motor.
A compressor system comprising:
- a compressor including a motor, a compression section having a compression chamber configured to suck and compress a fluid, a drive shaft coupled to the motor and configured to drive the compression section, and a bearing supporting the drive shaft;
- and
- a processor configured to predict a failure of the bearing and the drive shaft of the compressor,
- wherein a sliding portion of the bearing that slides on the drive shaft is made of a resin material and has a protrusion protruding toward the drive shaft, and
- wherein the processor is configured to predict the failure of the bearing and the drive shaft based on a change in an index indicating a drive state of the motor, which changes in conjunction with contact of the protrusion with the drive shaft.
A compressor system comprising:
- a compressor;
- and
- a processor configured to predict a failure of a target portion of the compressor,
- wherein the compressor includes
- a motor,
- a compressor mechanism section composed of a compression section having a compression chamber configured to suck and compress a fluid, a drive shaft coupled to the motor and configured to drive the compression section, a bearing supporting the drive shaft, and an oil supply passage configured to guide lubricating oil to the compression section and to a sliding portion of the drive shaft and the bearing, and
- an actualizing portion provided in the compressor mechanism section and configured to change a predetermined index in conjunction with a change in a state in the compressor, which causes the failure of the target portion, and
- wherein the processor is configured to predict the failure of the target portion based on the change in the predetermined index.
Dependencies are inferred from the claim text.