Patent application number | Description | Published |
20090116977 | Compressor With Muffler - A compressor assembly may include a shell, a discharge fitting, a muffler, a compression mechanism, and a motor. The shell may have an opening therethrough with the discharge fitting generally extending therefrom. The muffler may be in communication with the discharge fitting and may be external to the shell. The muffler may have an inlet proximate the discharge fitting, an outlet distal from the discharge fitting, and a body portion extending therebetween. The muffler may include a valve assembly proximate the outlet. The compression mechanism may be contained within the shell and include a suction inlet and a discharge passageway. The discharge passageway may be connected to the opening in the shell for direct discharge of refrigerant from the compression mechanism to the discharge fitting. The motor may be contained within the shell and drivingly coupled to the compression mechanism. | 05-07-2009 |
20100254841 | COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY - A compressor may include a shell assembly defining suction and discharge pressure regions, first and second scroll members disposed within the shell assembly, and a capacity modulation assembly. The first scroll member may include a first end plate defining a discharge passage, a biasing passage, a modulation port, a first spiral wrap extending from a first side of the first end plate, and an annular hub extending from a second side of the first end plate. The second scroll member may include a second spiral wrap meshingly engaged with the first spiral wrap forming a suction pocket in communication with the suction pressure region, intermediate compression pockets, and a discharge pocket in communication with the discharge passage. A first intermediate compression pocket may be in communication with the biasing passage and a second intermediate compression pocket may be in communication with the modulation port. | 10-07-2010 |
20110139794 | FLASH TANK DESIGN AND CONTROL FOR HEAT PUMPS - A flash tank is provided and may include a shell having an inner volume. A first port may be in fluid communication with the inner volume and may be positioned relative to a surface of the inner volume such that fluid flows therebetween in a direction that is substantially tangent to the surface. | 06-16-2011 |
20110206548 | COMPRESSOR INCLUDING VALVE ASSEMBLY - A compressor hub assembly may include a hub member, a valve retainer and a valve member. The hub member may include first and second portions. The first portion may define an annular hub wall for a compressor and may have a first inner diameter. The second portion may have a second inner diameter greater than the first inner diameter and may define a stepped region between the first and second portions. The valve retainer may be fixed to the hub member at an end of the second portion opposite the stepped region and may define a third inner diameter. The valve member may be located between the valve retainer in the stepped region and may have an outer diameter less than the second inner diameter and greater than the first and third inner diameters. | 08-25-2011 |
20110268597 | COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY - A compressor includes a shell assembly, first and second scroll members and a capacity modulation assembly. The first and second scroll members form a series of pockets. A first modulation port defined in the first scroll member is in communication with a first pocket. The capacity modulation assembly is in communication with the first modulation port and is operable in full, partial and first and second pulse width modulation (PWM) capacity modes. The full capacity mode includes the first modulation port isolated from a suction pressure region of the compressor, the partial capacity mode includes the first modulation port in communication with the suction pressure region, the first PWM capacity mode includes a capacity between full and partial capacity via PWM between the full and partial capacity modes and the second PWM capacity mode includes a capacity between full and zero capacity by providing PWM of the capacity modulation assembly. | 11-03-2011 |
20120107163 | COMPRESSOR SEAL ASSEMBLY - A compressor may include a shell, first and second scroll members, and a seal assembly. The shell defines a first and second pressure regions. The first scroll member may include a first end plate defining a chamber. The seal assembly may surround the discharge passage and fluidly separate the first and second pressure regions from each other. The seal assembly may include first and second sealing members. The first sealing member may prevent communication between the chamber and the second pressure region when a first fluid pressure within the second pressure region is higher than a second fluid pressure within the chamber. The first sealing member may define a leakage path when the first fluid pressure is lower than the second fluid pressure. The second sealing member may fluidly separate the chamber and the second pressure region when the first fluid pressure is lower than the second fluid pressure. | 05-03-2012 |
20120263609 | COMPRESSOR INCLUDING MOTOR COOLING - A compressor may include a shell, a compression mechanism supported within the shell, a drive shaft engaged with the compression mechanism and a motor. The drive shaft may define first and second passages extending axially within the drive shaft and a third passage extending radially through an outer circumferential surface of the drive shaft and in communication with the second passage. The drive shaft may define an axially extending wall separating the first and second passages. The motor may include a rotor fixed to the drive shaft and a stator supported within the shell. The third passage may be adapted to provide oil to the stator during compressor operation to cool the stator. | 10-18-2012 |
20130255932 | HEAT SINK FOR A CONDENSING UNIT AND METHOD OF USING SAME - A condensing unit control module may be cooled using multiple methods of cooling. A first method of cooling can be used to cool the control module when a minimal or reduced amount of cooling is needed, and a second method of cooling can be used when the control module requires a larger or maximum amount of cooling. The first method of cooling may include the use of air cooling. The second method of cooling can be through working fluid cooling. The second cooling method can supplement the first cooling method as the cooling needs of the control module increase. The second cooling method can be activated based upon a temperature of a heat sink, a temperature of one or more components of the control module, operating conditions of a heat pump system, ambient conditions, and/or a temperature of the working fluid flowing throughout the heat pump system. | 10-03-2013 |
20140069139 | COMPRESSOR ASSEMBLY WITH DIRECTED SUCTION - A compressor may include a shell assembly, a compression mechanism and a conduit. The shell assembly may include a fitting through which fluid is received from outside of the compressor. The compression mechanism may be disposed within a chamber defined by the shell assembly. The conduit may extend through the chamber between the fitting and a suction inlet of the compression mechanism and transmit at least a portion of the fluid from the fitting to the suction inlet. The conduit may include an inlet that may be spaced apart from the fitting and an outlet that may engage the compression mechanism. | 03-13-2014 |
20140072466 | COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY - A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region. | 03-13-2014 |
20140134031 | COMPRESSOR - A compressor may include first and second scrolls, a hub plate and a valve. The first scroll may include an end plate defining first and second sides, a primary discharge passage extending therethrough, and a secondary discharge passage extending therethrough and located radially outward from the primary discharge passage. The hub plate may be mounted to the first scroll and may include first and second opposite sides and a hub discharge passage in fluid communication with the primary discharge passage. The first side of the hub plate may face the second side of the end plate and may include a valve guide extending axially toward the end plate adjacent the hub discharge passage. The valve member may be secured on the valve guide for axial movement between open and closed positions to respectively allow and restrict fluid communication between the secondary discharge passage and the hub discharge passage. | 05-15-2014 |
20140154121 | COMPRESSOR WITH CAPACITY MODULATION AND VARIABLE VOLUME RATIO - A compressor is provided and may include a shell assembly defining a suction pressure region and a discharge pressure region. A first scroll member may include a first discharge port and a first modulation port. A second scroll member may include a first variable volume ratio port. A capacity modulation valve assembly may be in fluid communication with the first modulation port and may be displaceable between open and closed positions to selectively provide communication between a first intermediate compression pocket and the suction pressure region via the first modulation port. A variable volume ratio valve assembly may be in fluid communication with the first variable volume ratio port. The variable volume ratio valve assembly may be displaceable between open and closed positions to selectively provide communication between a second intermediate compression pocket and the discharge pressure region via the first variable volume ratio port. | 06-05-2014 |
20140154124 | SCROLL COMPRESSOR WITH VARIABLE VOLUME RATIO PORT IN ORBITING SCROLL - A compressor may include a first scroll member, a second scroll member and a drive shaft. The first scroll member may include a first end plate defining a first discharge port and a first spiral wrap extending from the first end plate. The second scroll member may include a second end plate defining a first variable volume ratio port and a second spiral wrap extending from the second end plate and meshingly engaged with the first spiral wrap and forming compression pockets. The variable volume ratio port may be located radially outward relative to the first discharge port and in communication with a first compression pocket. The drive shaft may be engaged with the second scroll member and driving orbital displacement of the second scroll member relative to the first scroll member. | 06-05-2014 |