Abstract: An oil storage area (45a) is defined on the bottom of a motor chamber (45) of a scroll compressor (1). An oil transfer route (4a) is defined in the portion of a center housing (4) that corresponds to the storage area (45a). Lubricating oil L is separated from the discharged, compressed refrigerant by an oil separator (80) and the lubricating oil L is supplied to the backside of a movable scroll (20) due to a pressure differential within the compress (1). After lubricating a bearing (10), the lubricating oil L is temporarily stored in the storage area (45a) and then is transferred due to a pressure differential to the suction-side of a compression mechanism (21) via the oil transfer route (4a). The lubricating oil L is then transferred to the oil separator (80) together with the compressed refrigerant that is discharged from a compression chamber (32) of the compression mechanism (21).

Abstract: A scroll-type compressor has a fixed scroll member, a movable scroll member, a front housing, a rear housing and a gasket seal. The fixed scroll member and the movable scroll member cooperate to form a compression region. The movable scroll member orbits relative to the fixed scroll member to compress refrigerant in the compression region. A movable scroll base plate of the movable scroll member forms a rear surface and a discharge hole substantially at the center of the movable scroll base plate. Pressure of the refrigerant discharged from the compression region is applied to the rear surface of the movable scroll base plate. The front housing accommodates the movable scroll member. The rear housing which is adjacent to the front housing, has the fixed scroll member inside. The gasket seal is located between the front housing and the rear housing.

Abstract: Scroll compressors may include a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft, a bearing member coupled to the crank shaft and a movable scroll coupled to the crank shaft. The movable scroll is typically disposed adjacent to the stationary scroll. Further, the movable scroll preferably includes a boss that extends in the axial direction of the crank shaft. A spacer may be disposed between the boss and the bearing member and the spacer preferably transmits orbital movement of the crank shaft to the movable scroll. A compression chamber is defined by a space between the stationary scroll and the movable scroll. Fluid (e.g. a refrigerant gas) is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. A discharge port may be defined within the movable scroll and may be adapted to discharge the compressed fluid to a side that is opposite of the stationary scroll.

Abstract: Scroll compressors may preferably include, for example, a stationary scroll, a drive shaft member, a movable scroll, a bearing member, a compression chamber, a discharge port, a discharge valve and a discharge valve clamping device. The drive shaft member may revolve around a revolution axis. The bearing member may be disposed between the movable scroll and the drive shaft member in order to transmit the revolution of the drive shaft member to the movable scroll. The compression chamber may be defined by a space formed between the stationary scroll and the movable scroll. The compression chamber compresses the fluid drawn into the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. The discharge port is disposed within the movable scroll and is adapted to discharge fluid within the compression chamber to the opposite side of the stationary scroll. The discharge valve clamping device is preferably affixed to the movable scroll.

Abstract: Scroll compressors may preferably include, for example, a stationary scroll, a drive shaft member, a movable scroll, a bearing member, a compression chamber, a discharge port, a discharge valve and a discharge valve clamping device. The drive shaft member may revolve around a revolution axis. The bearing member may be disposed between the movable scroll and the drive shaft member in order to transmit the revolution of the drive shaft member to the movable scroll. The compression chamber may be defined by a space formed between the stationary scroll and the movable scroll. The compression chamber compresses the fluid drawn into the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. The discharge port is disposed within the movable scroll and is adapted to discharge fluid within the compression chamber to the opposite side of the stationary scroll. The discharge valve clamping device is preferably affixed to the movable scroll.

Abstract: Scroll compressors may preferably include a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft and a bush coupled to the outer surface of the crank shaft. A seal is preferably disposed between the bush and the crank shaft and the seal is elastically deformable in the radial direction of the crank shaft. A movable scroll may be coupled to the crank shaft and disposed adjacent to the stationary scroll. A compression chamber is defined by a space between the stationary scroll and the movable scroll, such that fluid is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. Further, a discharge port is preferably defined within the movable scroll and adapted to release the compressed fluid to a side that is opposite of the stationary scroll.

Abstract: Scroll compressor may include, for example, a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft, a bush coupled to the outer surface of the crank shaft and a movable scroll coupled to the crank shaft. The movable scroll is preferably disposed adjacent to the stantionary scroll. A boss may be coupled to the movable scroll and the boss preferably protrudes from the movable scroll at the opposite side of the stationary scroll. A seal is preferably disposed in a clerance defined between the bush and the boss. A compression chamber is defined by a space between the stationary scroll and the movable scroll. Fluid is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. A discharge port is preferably defined within the movable scroll and is adapted to discharge compressed fluid to a side that is opposite of the stationary scroll.

Abstract: An oil storage area (45a) is defined on the bottom of a motor chamber (45) of a scroll compressor (1). An oil transfer route (4a) is defined in the portion of a center housing (4) that corresponds to the storage area (45a). Lubricating oil L is separated from the discharged, compressed refrigerant by an oil separator (80) and the lubricating oil L is supplied to the backside of a movable scroll (20) due to a pressure differential within the compress (1). After lubricating a bearing (10), the lubricating oil L is temporarily stored in the storage area (45a) and then is transferred due to a pressure differential to the suction-side of a compression mechanism (21) via the oil transfer route (4a). The lubricating oil L is then transferred to the oil separator (80) together with the compressed refrigerant that is discharged from a compression chamber (32) of the compression mechanism (21).

Abstract: An oil storage area (45a) is defined on the bottom of a motor chamber (45) of a scroll compressor (1). An oil transfer route (4a) is defined in the portion of a center housing (4) that corresponds to the storage area (45a). Lubricating oil L is separated from the discharged, compressed refrigerant by an oil separator (80) and the lubricating oil L is supplied to the backside of a movable scroll (20) due to a pressure differential within the compress (1). After lubricating a bearing (10), the lubricating oil L is temporarily stored in the storage area (45a) and then is transferred due to a pressure differential to the suction-side of a compression mechanism (21) via the oil transfer route (4a). The lubricating oil L is then transferred to the oil separator (80) together with the compressed refrigerant that is discharged from a compression chamber (32) of the compression mechanism (21).

Abstract: A scroll compressor has a fixed scroll member, a movable scroll member, a housing. The housing is secured to the fixed scroll member. The housing accommodates the movable scroll member to define a back pressure chamber. Pressure in the back pressure chamber is applied to the back surface of a movable scroll base plate of the movable scroll member. The back pressure chamber communicates with a region through a communication passage. The region is lower in pressure than the back pressure chamber. The communication passage relieves the pressure in the back pressure chamber to the region. The communication passage includes a valve. The valve varies an opening amount of the communication passage due to difference between the pressure in the compression region in the predetermined period of a compression process of the gas, and the pressure in the back pressure chamber.

Abstract: A scroll type compressor comprises a housing, a fixed scroll member fixed to the housing, a movable scroll member accommodated in the housing, a compression region defined with the fixed scroll member, a discharge port discharging gas from the compression region to a high pressure region, a first seal separating a predetermined region from a low pressure region adjacent to the periphery of the movable scroll member, an oil sump in the housing communicating with the high pressure region, and a passage in the housing extending from said oil sump to said predetermined region and permitting lubricating oil to supply the first seal due to the pressure difference between said predetermined region and the high pressure region. The gas is compressed in the compression region by orbiting the movable scroll member relative to the fixed scroll member.

Abstract: A scroll-type compressor has a fixed scroll member, a movable scroll member, a front housing, a rear housing and a gasket seal. The fixed scroll member and the movable scroll member cooperate to form a compression region. The movable scroll member orbits relative to the fixed scroll member to compress refrigerant in the compression region. A movable scroll base plate of the movable scroll member forms a rear surface and a discharge hole substantially at the center of the movable scroll base plate. Pressure of the refrigerant discharged from the compression region is applied to the rear surface of the movable scroll base plate. The front housing accommodates the movable scroll member. The rear housing which is adjacent to the front housing, has the fixed scroll member inside. The gasket seal is located between the front housing and the rear housing.

Abstract: A scroll type compressor has a housing, a fixed scroll member fixed to the housing, a drive shaft rotatably supported by the housing, a movable scroll member accommodated in the housing, an inlet formed through the housing and a discharge device provided for one of the movable. scroll member and the fixed scroll member. The movable scroll member faces the fixed scroll member. The movable scroll member and the fixed scroll member define a compression region. Gas introduced into the compressor via the inlet is compressed in the compression region by orbiting the movable scroll member relative to the fixed scroll member by rotation of the drive shaft, and is discharged via the discharge device. A plane bearing is disposed between the drive shaft and the housing to at least partially seal any gap between the drive shaft and the housing against the passage of the pressurized gas therethrough.

Abstract: Scroll compressors may preferably include a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft and a bush coupled to the outer surface of the crank shaft. A seal is preferably disposed between the bush and the crank shaft and the seal is elastically deformable in the radial direction of the crank shaft. A movable scroll may be coupled to the crank shaft and disposed adjacent to the stationary scroll. A compression chamber is defined by a space between the stationary scroll and the movable scroll, such that fluid is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. Further, a discharge port is preferably defined within the movable scroll and adapted to release the compressed fluid to a side that is opposite of the stationary scroll.

Abstract: Scroll compressors may include a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft, a bearing member coupled to the crank shaft and a movable scroll coupled to the crank shaft. The movable scroll is typically disposed adjacent to the stationary scroll. Further, the movable scroll preferably includes a boss that extends in the axial direction of the crank shaft. A spacer may be disposed between the boss and the bearing member and the spacer preferably transmits orbital movement of the crank shaft to the movable scroll. A compression chamber is defined by a space between the stationary scroll and the movable scroll. Fluid (e.g. a refrigerant gas) is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. A discharge port may be defined within the movable scroll and may be adapted to discharge the compressed fluid to a side that is opposite of the stationary scroll.

Abstract: A scroll type compressor includes a fixed scroll member, a movable scroll member, an inlet, a discharge port, a discharge valve, a first pressure region and a second pressure region. The inlet is formed through the fixed scroll base plate. The discharge port is formed through the movable scroll member. The discharge valve opens and closes the discharge port. The first pressure region and the second pressure region defined at opposite sides of the movable scroll member apply pressure to the movable scroll member. Gas introduced through the inlet is compressed and highly pressurized in accordance with the movable scroll member orbiting with respect to the fixed scroll member. The highly pressurized gas is discharged from a compression region via the discharge port and the discharge valve. The compressor is provided with a communication passage so as to intercommunicate the first pressure region and the second pressure region during a predetermined period of a compression cycle established by the gas.

Abstract: Scroll compressor may include, for example, a stationary scroll, a drive shaft, a crank shaft coupled to the drive shaft, a bush coupled to the outer surface of the crank shaft and a movable scroll coupled to the crank shaft. The movable scroll is preferably disposed adjacent to the stationary scroll. A boss may be coupled to the movable scroll and the boss preferably protrudes from the movable scroll at the opposite side of the stationary scroll. A seal is preferably disposed in a clearance defined between the bush and the boss. A compression chamber is defined by a space between the stationary scroll and the movable scroll. Fluid is compressed within the compression chamber when the movable scroll revolves or orbits with respect to the stationary scroll. A discharge port is preferably defined within the movable scroll and is adapted to discharge compressed fluid to a side that is opposite of the stationary scroll.