| Patent application number | Description | Published |
|---|
| 20090068048 | Compressor Sealing Arrangement - A compressor may include a shell, first and second scroll members, a partition and a first annular seal. The partition may be fixed to the shell and may overly the first scroll member. The partition may include first and second sides having a second discharge opening passing therethrough and being in communication with the first discharge opening. The first side may include a protrusion extending toward the first scroll member and generally surrounding the second discharge opening. The first annular seal may sealingly engage the partition and may be displaceable radially inward to a position abutting the protrusion to limit a radially inward travel of the first annular seal. | 03-12-2009 |
| 20090087332 | Compressor Having Improved Sealing Assembly - A compressor may include a shell, a bearing housing assembly located within and secured to the shell, a compression mechanism supported on the bearing housing assembly, a partition extending over the compression mechanism, and an annular seal assembly. The partition may be fixed to the shell and may abut an axial end surface of the bearing housing assembly to control a maximum axial distance between the partition and the compression mechanism. The annular seal may be sealingly engaged with the compression mechanism and the bearing housing assembly and may have a generally L-shaped cross-section including a first leg extending generally laterally between the compression mechanism and the partition. The first leg may have an axial thickness that is greater than the maximum axial distance. | 04-02-2009 |
| 20090185935 | SCROLL MACHINE - A compressor may include a shell, a compression mechanism, and a seal assembly. The shell may define a first discharge passage. The compression mechanism may be supported within the shell and may include first and second scroll members. The first scroll member may include a second discharge passage. The seal assembly may extend between the first scroll member and the shell and may form a sealed discharge path between the first and second discharge passages. The seal assembly may include a first seal member axially displaceable relative to the shell and the first scroll member. The first seal member may axially abut the first scroll member when in a first position and may be free from axial contact with the first scroll member when in a second position. The seal assembly may maintain the sealed discharge path when the first seal member is in the first position. | 07-23-2009 |
| 20090297377 | Compressor having capacity modulation system - A compressor includes a housing, a first scroll member supported within the housing and having a first end plate with a discharge passage, and a second scroll member supported within the housing and having a second end plate with a second spiral wrap extending therefrom and meshingly engaged with the first spiral wrap to form a series of pockets. A first aperture extends through the first end plate and is in communication with a first product of the series of pockets. A modulation assembly axially biases the first scroll member into engagement with the second scroll member when the first aperture is in communication with a suction pressure region of the compressor. | 12-03-2009 |
| 20090297378 | Compressor having capacity modulation system - A compressor including a housing defining a suction pressure region and a discharge pressure region includes first and second scroll members forming compression pockets. A first chamber located on the first end plate of the first scroll member includes first and second passages and a first aperture extending therethrough and in communication with the first chamber. The first aperture provides communication between a compression pocket and the first chamber. A piston in the first chamber is axially displaceable to isolate the first passage from communication with the second passage when in first and second positions, prevent communication between the first aperture and the first passage when in the first position, and provide communication between the first aperture and the first passage when in the second position. | 12-03-2009 |
| 20090297379 | Compressor Having Output Adjustment Assembly Including Piston Actuation - A compressor may include a housing, first and second scroll members, and a compressor output adjustment assembly. The first scroll member may define a first chamber having first and second passages in communication therewith, a second chamber having third and fourth passages in communication therewith, and first and second apertures. The first and third passages may be in communication with a first pressure source and the second and fourth passages may be selectively in communication with a second pressure source. The compressor output adjustment assembly may include a first piston located in the first chamber and displaceable between first and second positions and a second piston located in the second chamber and displaceable between first and second positions. The first piston may isolate the first aperture from the first passage and the second piston may isolate the second aperture from the third passage when in their respective second positions. | 12-03-2009 |
| 20090297380 | Compressor having capacity modulation system - A compressor includes orbiting and non-orbiting scroll members meshingly engaged to form a series of compression pockets, including first pockets when the orbiting scroll member is in a first position. A first porting in the non-orbiting scroll member communicates with the first pockets during a portion of a compression cycle. The first pockets include a set of radially outermost pockets located radially inward relative to the first porting and isolated from communication with the first porting during the compression cycle. The first porting is aligned with a spiral wrap of the orbiting scroll member at a location radially outward from and directly adjacent the first pockets when the orbiting scroll member is in the first position. Additional porting communicates with each of the compression pockets located radially outward relative to the first pockets when the orbiting scroll member is in the first position. | 12-03-2009 |
| 20100135836 | Scroll Compressor Having Capacity Modulation System - A compressor may include a housing, orbiting and non-orbiting scroll members, a first porting, and a second porting. The first and second porting may each extend through the end plate of the non-orbiting scroll member and may each have an angular extent of at least twenty degrees. An ending point of the first porting may be rotationally spaced from a starting point of the first porting by the angular extent in a rotational direction of a drive shaft of the compressor. An ending point of the second porting may be rotationally spaced from a starting point of the second porting by the angular extent in a rotational direction opposite the rotational direction of the drive shaft. The ending point of the second porting may be rotationally spaced from the starting point of the first porting by less than one hundred and eighty degrees in the rotational direction of the drive shaft. | 06-03-2010 |
| 20100158731 | Compressor having capacity modulation system - A compressor includes a first porting extending through an end plate of an orbiting scroll member at an angular extent of at least twenty degrees and first and second spiral wraps defining modulated capacity pockets when the orbiting scroll is in a first position. The first modulated capacity pockets may include a set of radially outermost compression pockets located radially inward relative to the first porting and isolated from communication with the first porting during an entirety of the compression cycle. The first porting may align with the second spiral wrap at a location radially outward from and directly adjacent the first modulated capacity pockets when the orbiting scroll member is in the first position. | 06-24-2010 |
| 20100300659 | Compressor Having Capacity Modulation Or Fluid Injection Systems - A compressor may include first and second scroll members and first and second pistons. The first scroll member includes a first end plate and a first scroll wrap. The second scroll member includes a second end plate and a second scroll wrap that is intermeshed with the first scroll wrap to define moving fluid pockets. The second end plate may include a first and second passages, first and second recesses, and first and second ports extending through the second end plate and communicating with at least one of the pockets. The first piston may be disposed in the first recess and movable between first and second positions controlling communication between the first passage and the first port. The second piston may be disposed in the second recess and movable between first and second positions controlling communication between at least one of the pockets and said second passage. | 12-02-2010 |
| 20100303659 | COMPRESSOR HAVING PISTON ASSEMBLY - A compressor includes orbiting and non-orbiting scrolls forming first and second fluid pockets therebetween. First and second ports are disposed in the non-orbiting scroll and radially spaced apart from each other. The first port communicates with the first pocket at a first radial position and the second port communicates with the second pocket at a second radial position. A blocking device is movable between a first position preventing communication between the ports and a fluid source and a second position allowing communication between the ports and the fluid source. The first and second pockets have first and second pressures, respectively. One of the pressures may have a disproportionate pressure change compared to the other of the pressures after at least one of the pockets communicates with the fluid source through at least one of the ports. The disproportionate pressure change biases the orbiting scroll relative to the non-orbiting scroll. | 12-02-2010 |
| 20110033328 | COMPRESSOR HAVING CAPACITY MODULATION SYSTEM - A compressor includes first and second scroll members, a structure supporting the second scroll member, and a first piston. The first scroll member includes a first end plate and a first spiral wrap. The second scroll member includes a second end plate and a second spiral wrap engaged with the first spiral wrap to form compression pockets. The second end plate includes a first aperture in communication with a first compression pocket. The structure includes a first recess and first and second passages. The first piston is axially displaceable between first and second positions within the first recess. The first piston isolates the first passage from communication with the second passage when in the first and second positions, prevents communication between the first aperture and the first passage when in the first position, and provides communication between the first aperture and the first passage when in the second position. | 02-10-2011 |
| 20110103988 | COMPRESSOR HAVING CAPACITY MODULATION SYSTEM - A compressor may include a housing and first and second scroll members supported within the housing, each having an end plate with a spiral wrap extending therefrom and meshingly engaged with the other to form a series of compression pockets operating at an intermediate fluid pressure between a suction pressure and a discharge pressure. A first passage in communication with one of the compression pockets extends from a first side of the first end plate to a second side of the first end plate generally opposite the first side. A modulation plate overlies the second side of the first scroll member for radial displacement between first and second positions. The modulation plate isolates the first passage from communication with a suction pressure region of the compressor when in the first position and provides communication between the first passage and the suction pressure region when in the second position. | 05-05-2011 |
| 20110250085 | COMPRESSOR HAVING OUTPUT ADJUSTMENT ASSEMBLY - A compressor includes a housing, a first scroll member, a second scroll member and a valve assembly. The first scroll member is positioned within the housing and includes a first end plate portion and a second end plate portion coupled to the first end plate portion and having a first spiral wrap extending therefrom. The first end plate portion and the second end plate portion define a discharge passage. The second scroll member is positioned within the housing and includes a second spiral wrap meshingly engaged with the first spiral wrap. The valve assembly is supported by at least one of the first end plate portion and the second end plate portion at a location radially outward from the discharge passage. | 10-13-2011 |
| 20110256009 | COMPRESSOR HAVING CAPACITY MODULATION SYSTEM - A compressor includes a housing, a first scroll member, a second scroll member and a modulation assembly. The first scroll member includes a first end plate having a discharge passage, a first spiral wrap, and a first aperture extending through the first end plate. The second scroll member includes a second end plate having a second spiral wrap extending therefrom and meshingly engaged with the first spiral wrap to form a series of pockets. The first aperture is in communication with a first of the pockets. The modulation assembly is in communication with the first aperture and is operable in a full capacity mode where the first aperture is isolated from a suction pressure region providing full capacity operation and in a reduced capacity mode where the first aperture is in communication with the suction pressure region providing approximately zero capacity operation. | 10-20-2011 |
| 20110293456 | SCROLL MACHINE - A compressor includes a shell, a compression mechanism, and an axial biasing system. The shell defines a first passage forming a first discharge passage. The compression mechanism includes first and second scroll members meshingly engaged with one another and forming a series of compression pockets. The first scroll member includes a second discharge passage. The axial biasing system includes a biasing member having first and second surfaces generally opposite one another. The first surface includes a first radial surface area exposed to an intermediate pressure from one of the compression pockets and a second radial surface area exposed to a discharge pressure. The second surface includes a third radial surface area exposed to the intermediate pressure. The biasing member is axially displaceable between first and second positions. The biasing member axially engages the first scroll member when in the first position. | 12-01-2011 |
| 20120195781 | COMPRESSOR HAVING CAPACITY MODULATION SYSTEM - A compressor includes first and second scroll members, a piston and a control valve. The first scroll member includes an end plate defining a capacity modulation passage. The first and second scroll members form a suction pocket, an intermediate compression pocket and a discharge pocket. The capacity modulation passage is in communication with the first intermediate compression pocket. The piston is supported on the first scroll member and partially defines a modulation control chamber. The control valve is in communication with the control chamber and selectively provides communication between the control chamber and one of the first and second pressure sources to displace the piston between a closed position and an open position. The piston isolates the capacity modulation passage from communication with the suction pressure region when in the closed position and provides communication between the capacity modulation passage and the suction pressure region when in the open position. | 08-02-2012 |
| 20130081710 | DIRECT-SUCTION COMPRESSOR - A compressor may include a shell, a compression mechanism, and a suction passageway. The shell may include an inlet port. The compression mechanism may be disposed within the shell and may include a suction inlet. The suction passageway may include a first portion, a second portion, and an intermediate portion. The first portion may be fluidly coupled to the inlet port. The second portion may be fluidly coupled to the suction inlet of the compression mechanism. The intermediate portion may be disposed between the first and second portions and may be movable between a first position in which the intermediate portion engages the first and second portions and a second position in which the intermediate portion is disengaged from at least one of the first and second portions. | 04-04-2013 |
| 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 |
| 20140037486 | COMPRESSOR HAVING CAPACITY MODULATION OR FLUID INJECTION SYSTEMS - A compressor may include a fluid-injection source, a shell, and first and second scroll members. The shell may define a suction pressure region. The first scroll member may include a first end plate and a first scroll wrap extending therefrom. The second scroll member may include a second end plate and a second scroll wrap extending therefrom. The first and second scroll wraps may cooperate to define a plurality of fluid pockets. The second end plate may include a first passage and a second passage. The second end plate may also include a first port and a second port extending through the second end plate and communicating with at least one of the fluid pockets. The first passage may be in communication with the suction pressure region. The second passage may be in communication with the fluid-injection source. | 02-06-2014 |
| 20140134030 | COMPRESSOR VALVE SYSTEM AND ASSEMBLY - A compressor may include first and second scroll members having first and second scroll wraps, respectively. The scroll members define a suction inlet, a discharge outlet, and fluid pockets moving therebetween. The second scroll member may include a port, and a passage. The port may be in fluid communication with at least one of the pockets. The passage may extend through a portion of the second end plate and may be in fluid communication with the port. A valve assembly may be disposed in the passage and may include a valve member displaceable between open and closed positions. A recompression volume may be disposed between the valve member and the at least one of the pockets. The recompression volume may be less than or equal to approximately one percent of a volume of one of the pockets at a suction seal-off position. | 05-15-2014 |
| 20140140868 | SCROLL COMPRESSOR WITH OIL-COOLED MOTOR - A compressor may include a shell, a compression mechanism, a motor, a pumping mechanism, and a heat exchanger. The shell may define an internal cavity and an oil sump. The compression mechanism is disposed the said shell. The motor is coupled to a driveshaft for selectively powering the compression mechanism. The pumping mechanism may be in fluid-pumping communication with the oil sump. The first heat exchanger may be disposed external from the shell and in fluid communication with the pumping mechanism. The first heat exchanger may cool the oil prior to returning the cooled oil to the internal cavity. | 05-22-2014 |
| 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 |
| 20140216102 | COMPRESSOR COOLING SYSTEM - A system may include a compressor, a heat exchanger, an expansion device, and first and second working fluid flow paths. The compressor may include a compression mechanism and a motor. The heat exchanger may receive compressed working fluid from the compressor. The expansion device may be disposed downstream of the heat exchanger. The first working fluid flow path may fluidly connect the heat exchanger and the expansion device. The second working fluid flow path may be disposed downstream of the heat exchanger and may fluidly connect the heat exchanger with the compressor. The second working fluid flow path may provide compressed working fluid to the compression mechanism and to the motor. | 08-07-2014 |
| 20140216103 | COMPRESSOR COOLING SYSTEM - A system may include a compressor, a heat exchanger, an expansion device, a lubricant separator, and a flow path. The compressor includes a compression mechanism. The heat exchanger receives compressed working fluid from the compressor. The expansion device is disposed downstream of the heat exchanger. The lubricant separator receives lubricant and working fluid discharged from the compression mechanism and provides separated lubricant to the compression mechanism. The flow path may receive working fluid from the heat exchanger and may provide working fluid to the heat exchanger. The flow path may extend between a first location disposed between the heat exchanger and the expansion device and a second location disposed between the heat exchanger and the compressor. The working fluid from the flow path may absorb heat from the separated lubricant. | 08-07-2014 |
| 20140356211 | COMPRESSOR HAVING OUTPUT ADJUSTMENT ASSEMBLY - A compressor includes a housing, a first scroll member, a second scroll member and a valve assembly. The first scroll member is positioned within the housing and includes a first end plate portion and a second end plate portion coupled to the first end plate portion and having a first spiral wrap extending therefrom. The first end plate portion and the second end plate portion define a discharge passage. The second scroll member is positioned within the housing and includes a second spiral wrap meshingly engaged with the first spiral wrap. The valve assembly is supported by at least one of the first end plate portion and the second end plate portion at a location radially outward from the discharge passage. | 12-04-2014 |
