Patent application number | Description | Published |
20130309117 | COMPRESSOR HAVING A LOWER FRAME AND A METHOD OF MANUFACTURING THE SAME - A compressor having a lower frame and a method of manufacturing the same are disclosed. The compressor may include a cylindrical shell, a rotational shaft rotatably mounted in the cylindrical shell, a rotor and a stator that rotates the rotational shaft, a compression device driven by the rotational shaft, a lower bearing configured to rotatably support one side of the rotational shaft, a lower frame configured to support the lower bearing, the lower frame being configured to be press-fitted into a lower end portion of the cylindrical shell, and a base configured to seal the lower end portion of the cylindrical shell. The lower frame may include a main body configured to be press-fitted onto an inner circumferential surface of the cylindrical shell and a flange that extends from the main body, the flange being configured to limit a press-fit depth by contacting the lower end portion of the cylindrical shell. | 11-21-2013 |
20140271302 | SCROLL COMPRESSOR WITH A BYPASS - An upper back pressure type scroll compressor having a bypass is provided. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll that forms a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the first scroll. The second scroll may include a bypass hole that communicates with the intermediate pressure chamber. The scroll compressor may also include a back pressure chamber assembly coupled to an upper portion of the second scroll by a fastening device and a bypass valve to open and close the bypass hole. The back pressure chamber assembly may include a discharge path by which the discharge chamber and the discharge space may communicate with each other and a bypass valve to open and close the bypass hole. | 09-18-2014 |
20140271304 | SCROLL COMPRESSOR WITH BACK PRESSURE CHAMBER - An upper back pressure type scroll compressor is provided having a back pressure chamber. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the first scroll. The scroll compressor may also include a back pressure plate coupled to the second scroll. The back pressure plate may include a cavity with which the intermediate pressure chamber of the second scroll communicates. The scroll compressor may further include a floating plate movably coupled to the back pressure plate so as to seal an upper portion of the cavity. | 09-18-2014 |
20140271306 | SCROLL COMPRESSOR WITH BACK PRESSURE DISCHARGE - A scroll compressor having a back pressure discharge is provided. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming at least a discharge chamber together with the first scroll. The second scroll may include a discharge opening through which an operation fluid may be discharged. The scroll compressor may also include a back pressure chamber assembly fastened to the second scroll with a Efastener, a back pressure discharge opening that communicates with the back pressure chamber, and a discharge path by which the discharge chamber and the discharge space communicate with each other. The scroll compressor may further include a check valve disposed at the back pressure discharge opening to prevent the operation fluid from being introduced into the back pressure chamber. | 09-18-2014 |
20150233375 | SCROLL COMPRESSOR - A scroll compressor is provided. The scroll compressor may include a casing including a rotational shaft, a discharge cover fixed at an inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll rotated by the rotational shaft to perform an orbiting motion, a second scroll disposed on or at a side of the first scroll to define a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure among the plurality of compression chambers, a back pressure plate coupled to the second scroll, the back pressure plate having an intermediate pressure suction hole that communicates with the intermediate pressure discharge hole, a floating plate movably disposed on or at a side of the back pressure plate to define a back pressure chamber together with the back pressure plate, and a discharge guide defined in the first scroll or the second scroll to guide discharge of a refrigerant within the back pressure chamber. | 08-20-2015 |
20150316055 | SCROLL COMPRESSOR - A scroll compressor is provided that may include a casing including a rotational shaft, a discharge cover fixed inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll that is revolved by rotation of the rotational shaft, a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure of the plurality of compression chambers, a back pressure plate that defines a back pressure chamber that accommodates a refrigerant discharged from the intermediate pressure discharge hole, a floating plate movably disposed on or at a side of the back pressure plate to define the back pressure chamber together with the back pressure plate, and an elastic member disposed between the floating plate and the discharge cover to provide an elastic force to the floating plate. | 11-05-2015 |
20150316056 | COMPRESSOR - A scroll compressor is provided, and in particular, a scroll compressor that may include a casing, a discharge cover to partition an inside of the casing into a suction space and a discharge space, a first scroll, a second scroll that defines compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure of the compression chambers, a back pressure plate that defines a back pressure chamber that accommodates a refrigerant discharged from the intermediate pressure discharge hole, a floating plate that defines the back pressure chamber together with the back pressure plate, and a gasket disposed between the back pressure plate and the second scroll and having an intermediate pressure communication hole that allows the intermediate pressure discharge hole to communicate with the intermediate pressure suction hole. The gasket may block communication between the back pressure chamber and the suction and discharge spaces. | 11-05-2015 |
20150316057 | SCROLL COMPRESSOR - A scroll compressor is provided that may include a casing including a rotational shaft, a cover fixed inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll revolved by rotation of the rotational shaft, a second scroll disposed on or at one side of the first scroll to define a compression chamber together with the first scroll, the second scroll including a discharge, through which a refrigerant pressed in the compression chamber may be discharged, a switching device movably disposed on or at one side of the discharge to selectively open and close the discharge, a back pressure portion including a moving guide that accommodates at least a portion of the switching device, and a top surface that covers one side of the switching device; and an adhesion preventer that reduces a contact area between the switching device and at least a portion of the back pressure portion. | 11-05-2015 |
20150316060 | COMPRESSOR - A scroll compressor is provided that may include a first scroll, a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll having at least one hole that communicates with at least one of the plurality of compression chambers, a valve coupled to the second scroll to open and close the at least one hole, and a coupling member to couple the valve to the second scroll. A coupling groove, to which the coupling member may be coupled and having a screw thread or unevenness on an inner circumferential surface thereof, may be defined in the second scroll. The coupling member may include a rivet, and may be engaged with the screw thread or unevenness formed on the inner circumferential surface of the coupling groove when the coupling member having passed through the valve is coupled to the coupling groove. | 11-05-2015 |