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81. 发明专利

AU676805B2 Method and apparatus for measuring piston position in a free piston compressor 未知
公开(公告)号：AU676805B2
公开(公告)日：1997-03-20
申请号：AU2719395
申请日：1995-07-26
申请人： SUNPOWER INC
发明人： REDLICH ROBERT W
IPC分类号： F04B49/00 , F04B31/00 , F04B35/04 , F04B49/06 , G01D5/20 , G01D5/242 , G05D3/00
摘要： A method of measuring the distance at closest approach between the piston of a free piston compressor and the cylinder head. The method derives measurements of both the alternating and average components of piston position from direct measurements of the voltage and current applied to the linear permanent magnet motor that drives the piston, and thus eliminates any requirement for an additional position sensor located within the compressor.

82. 发明专利

AU6591896A Refrigerator with interior mounted heat pump 未知
公开(公告)号：AU6591896A
公开(公告)日：1997-03-12
申请号：AU6591896
申请日：1996-07-23
申请人： SUNPOWER INC
发明人： BERCHOWITZ DAVID M , KIIKKA DALE E
IPC分类号： F25B9/14 , F25B23/00 , F25B25/00 , F25B27/00 , F25D23/00 , F25B9/00 , F25D11/02
摘要： A refrigerator having a heat pump mounted within the insulated portion of the refrigerator cabinet which is cooled by the heat pump. The heat pump is a Stirling cycle or Rankine cycle heat pump, is used to cool the interior of the refrigerator cabinet, and is mounted in an insulated housing to limit the transfer of heat from the heat pump into the refrigerator cabinet. A heat transporting conduit connects the heat pump to an exterior heat exchanger mounted outside the refrigerator cabinet.

83. 发明专利

AU2719395A Method and apparatus for measuring piston position in a free piston compressor 未知
公开(公告)号：AU2719395A
公开(公告)日：1995-09-21
申请号：AU2719395
申请日：1995-07-26
申请人： SUNPOWER INC
发明人： REDLICH ROBERT W
IPC分类号： F04B49/00 , F04B31/00 , F04B35/04 , F04B49/06 , G01D5/20 , G01D5/242 , G05D3/00
摘要： A method of measuring the distance at closest approach between the piston of a free piston compressor and the cylinder head. The method derives measurements of both the alternating and average components of piston position from direct measurements of the voltage and current applied to the linear permanent magnet motor that drives the piston, and thus eliminates any requirement for an additional position sensor located within the compressor.

84. 发明专利

MX9305059A 未知
公开(公告)号：MX9305059A
公开(公告)日：1994-04-29
申请号：MX9305059
申请日：1993-08-20
申请人： SUNPOWER INC
发明人： BEALE WILLIAM T
IPC分类号： F01B11/00 , F02G1/043 , F02G1/053 , F25B9/14 , F25B1/00
摘要： Free piston Stirling coolers and engines are improved by a variable power transmitting linkage connecting the displacer to the piston and coupling more power from the displacer to the piston while piston displacement exceeds a selected limit than coupled while piston displacement is less than the selected limit. Adjustment of the position of the limit is used to control stroke amplitude, power output or thermal pumping rate.

85. 发明专利

DE3680280D1 未知
公开(公告)号：DE3680280D1
公开(公告)日：1991-08-22
申请号：DE3680280
申请日：1986-04-03
申请人： SUNPOWER INC
发明人： REDLICH W
IPC分类号： H02K35/00 , H02K35/02 , H02P9/04

86. 发明专利

AU6076790A FPSE TO LOAD OF REFRIGERANT COMPRESSOR 未知
公开(公告)号：AU6076790A
公开(公告)日：1991-03-11
申请号：AU6076790
申请日：1990-07-26
申请人： SUNPOWER INC
发明人： CHEN GONG , BEALE WILLIAM T
IPC分类号： F02G1/043 , F02G1/06 , F25B27/00
摘要： The power output of a free piston Stirling engine is matched to a gas compressor which it drives and its stroke amplitude is made relatively constant as a function of power by connecting a gas spring to the drive linkage from the engine to the compressor. The gas spring is connected to the compressor through a passageway in which a valve is interposed. The valve is linked to the drive linkage so it is opened when the stroke amplitude exceeds a selected limit. This allows compressed gas to enter the spring, increase its spring constant, thus opposing stroke increase and reducing the phase lead of the displacer ahead of the piston to reduce power output and match it to a reduced load power demand.

87. 发明专利

CA2687902C CONTROLLER COMPUTING A VIRTUAL TUNING CAPACITOR FOR CONTROLLING A FREE-PISTON STIRLING ENGINE DRIVING A LINEAR ALTERNATOR 未知
公开(公告)号：CA2687902C
公开(公告)日：2015-02-03
申请号：CA2687902
申请日：2008-03-28
申请人： SUNPOWER INC
发明人： HOLLIDAY EZEKIEL S
IPC分类号： F02D29/06 , H02K7/18 , H02P9/00
摘要： A feedback control circuit and method for a control system used to control an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. A switching mode rectifier connects the alternator winding to an output circuit that includes an electrical energy storage means and is controlled by a pulse width modulator that controls the rectifier switching duty cycle and phase. The control system controls the pulse width modulator. The improvement computes a voltage across a virtual tuning capacitor and uses the computed voltage to control the switching mode rectifier so that the switching mode rectifier is switched in a manner that makes the alternator circuit operate as if a tuning capacitor were actually present and so that the control system controls the piston of the Stirling engine to maintain balance of the mechanical power generated by the Stirling engine and the electrical power absorbed from the engine by the alternator.

88. 发明专利

BRPI0812945A2 未知
公开(公告)号：BRPI0812945A2
公开(公告)日：2014-12-16
申请号：BRPI0812945
申请日：2008-03-28
申请人： SUNPOWER INC
发明人： HOLLIDAY EZEKIEL S
IPC分类号： G06F17/50
摘要： A feedback control circuit and method for a control system used to control an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. A switching mode rectifier connects the alternator winding to an output circuit that includes an electrical energy storage means and is controlled by a pulse width modulator that controls the rectifier switching duty cycle and phase. The control system controls the pulse width modulator. The improvement computes a voltage across a virtual tuning capacitor and uses the computed voltage to control the switching mode rectifier so that the switching mode rectifier is switched in a manner that makes the alternator circuit operate as if a tuning capacitor were actually present and so that the control system controls the piston of the Stirling engine to maintain balance of the mechanical power generated by the Stirling engine and the electrical power absorbed from the engine by the alternator.

89. 发明专利

MX2011004709A MOTOR LINEAL/ALTERNADOR DE MULTIPLES ARMADURAS QUE TIENE MUELLE MAGNETICO SIN CAMPOS MARGINALES Y SALIDA DE ENERGIA INCREMENTADA. 未知
公开(公告)号：MX2011004709A
公开(公告)日：2011-07-28
申请号：MX2011004709
申请日：2009-11-03
申请人： SUNPOWER INC
发明人： Z-M-UNGER REUVEN
IPC分类号： H02K35/02
摘要： Un motor lineal o alternador recíproco electromagnético que tiene por lo menos dos armaduras que se encuentran adyacentes a un eje de reciprocidad. Las armaduras tienen entrehierros que se ajustan de manera lineal a lo largo de una trayectoria del entrehierro paralela al eje. Imanes de campo oscilan dentro de la trayectoria del entrehierro. Los imanes de campo incluyen un imán de campo principal asociado con cada armadura, cada imán de campo principal tiene una polarización magnética en la misma dirección a través de la trayectoria del entrehierro. Un imán secundario proporciona una fuerza de flexión centrada y se interpone entre los imanes principales. El imán secundario se extiende en una: dirección axial desde dentro de un entrehierro de un alma de armadura hasta dentro de un entrehierro adyacente de un alma de armadura adyacente. El imán secundario se polariza de manera magnética en una dirección opuesta a la polarización de los imanes principales.

90. 发明专利

DE602007011662D1 MOTORLEISTUNG AN LICHTMASCHINENLEISTUNG ANPASSENDE UND MOTORFREQUENZ FÜR EINEN EINE LINEARLICHTMASCHINE ANTREIBENDEN FREILKOLBEN-STIRLINGMOTOR AUFRECHTERHALTENDE ELEKTRONISCHE STEUERUNG 未知
公开(公告)号：DE602007011662D1
公开(公告)日：2011-02-10
申请号：DE602007011662
申请日：2007-09-10
申请人： SUNPOWER INC
发明人： KEITER DOUGLAS E , HOLLIDAY EZEKIEL S
IPC分类号： F01B29/10 , F02G1/043 , H02M7/48 , H02M7/538 , H02M7/5395

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