Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928)
01/2006
01/04/2006CN1715657A Temperature sensor arranging structure for vortex compressor
01/04/2006CN1715656A Compression device of roller compressor
01/04/2006CN1715655A Rotary compressor
12/2005
12/29/2005WO2005038255B1 Evacuation apparatus
12/22/2005WO2005121558A1 Hermetic rotary compressor
12/21/2005CN1232732C Vortex compressor
12/14/2005EP1605167A1 Rotary sealed compressor and refrigeration cycle apparatus
12/14/2005EP1478854B1 Motor pump
12/14/2005CN1707115A Capacity varying device for rotary compressor
12/14/2005CN1707104A Vortex machine with continuous power regulation
12/13/2005US6974314 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
12/08/2005US20050268631 Apparatus for driving a compressor and a refrigerating air conditioner
12/07/2005EP1320683B1 Variable speed oil-injected screw compressors
12/07/2005CN1705826A Variable inner volume ratio-type inverter screw compressor
12/07/2005CN1230622C Radial vortex compressor
12/06/2005US6971862 Appartus for preventing overheat of scroll compressor
12/01/2005US20050265880 Backpressure mechanism of scroll type compressor
11/2005
11/30/2005CN1703584A Screw pump
11/29/2005US6968820 Continuous variable suction system
11/23/2005EP1598615A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/23/2005EP1598614A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/23/2005EP1598613A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/23/2005EP1598612A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/23/2005EP1598611A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
11/23/2005EP1598557A1 Compressor lubrication control
11/23/2005EP1407146B1 Water-injected screw compressor
11/23/2005CN1699754A Compressor units
11/22/2005US6966759 Compressor diagnostic and recording system
11/22/2005US6966194 Refrigerating machine
11/17/2005WO2005108882A2 Compressor diagnostic and protection system
11/17/2005US20050253474 Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor
11/16/2005CN1227496C Compressor with control and protection system
11/15/2005US6964558 Compressor utilizing low volt power tapped from high volt power
11/10/2005DE102005017830A1 Kompressor mit variabler Geschwindigkeit Variable speed compressor
11/08/2005US6962486 Variable capacity rotary compressor
11/03/2005WO2005038255A3 Evacuation apparatus
11/02/2005CN1690475A Variable speed compressor
11/02/2005CN1690425A Dual volume-ratio scroll machine
10/2005
10/27/2005US20050235664 Compressor diagnostic and protection system and method
10/27/2005US20050235663 Compressor diagnostic and protection system and method
10/27/2005US20050235662 Compressor configuration system and method
10/27/2005US20050235661 Compressor diagnostic and protection system and method
10/27/2005US20050235660 Compressor diagnostic and protection system
10/27/2005DE102005014129A1 Abwärme eines Verbrennungsmotors nutzendes System Waste heat from an internal combustion engine using system
10/26/2005CN1688815A Improvements in dry pumps
10/20/2005US20050233854 Variable speed compressor
10/20/2005US20050232791 Dual-shaft vacuum pump
10/13/2005US20050226758 Screw compressor
10/12/2005CN1680720A Scroll compressor with hot oil temperature responsive relief of back pressure chamber
10/12/2005CN1680718A Dual volume-ratio scroll machine
10/11/2005US6953330 Scroll vacuum pump
10/06/2005US20050220654 Apparatus for preventing overheating of scroll compressor
10/06/2005US20050217288 System utilizing waste heat of internal combustion engine
10/06/2005DE4114618B4 Verfahren zur Änderung des inneren Volumenverhältnisses vi für Schraubenverdichter Method of changing the internal volume ratio vi for screw compressors
10/05/2005CN1678833A Speed control for compressors
10/05/2005CN1678829A Seal-leak detector arrangement for compressors and other equipment
10/05/2005CN1677022A System utilizing waste heat of internal combustion engine
10/05/2005CN1676937A Apparatus for preventing overheating of scroll compressor
10/05/2005CN1221771C Refrigerator
10/05/2005CN1221739C Vortex compressor
10/05/2005CN1221737C Vortex compressor
09/2005
09/29/2005US20050214137 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same
09/29/2005US20050214128 Speed control for compressors
09/28/2005CN1675469A Vacuum pump and starting method therefor
09/27/2005US6948915 Oil free screw compressor
09/22/2005US20050207925 Variable capacity rotary compressor
09/22/2005DE102005003018A1 Luftzufuhrvorrichtung für stabile Luftzufuhr Air supply apparatus for stable supply of air
09/21/2005EP1577559A1 Vacuum pumping system
09/21/2005EP1577557A2 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same
09/21/2005CN1670377A Variable capacity rotary compressor
09/21/2005CN1670374A Multicylinder rotary compressor and compressing system and refrigerating unit provided with same
09/21/2005CN1220016C Flow control of extruder
09/21/2005CN1220004C Control system of degree of superheat of air conditioner and control method thereof
09/21/2005CN1219981C Vacuum preventer for vortex compressor
09/21/2005CN1219979C Variable displacement controlling device for reducing swirl compressor
09/21/2005CN1219978C Wear-resistant structure of swirl compressor
09/15/2005WO2005085646A1 System and method for variable speed operation of a screw compressor
09/15/2005US20050201882 Vacuum pumping system
09/15/2005CA2557560A1 System and method for variable speed operation of a screw compressor
09/14/2005EP1573203A1 Screw compressor with axially sliding capacity control valve
09/14/2005CN1668852A Compressor with capacity control
09/14/2005CN1219156C Scroll compressor with antireversing device
09/13/2005US6942466 Mechanical pumps
09/08/2005US20050196285 Compressor protection and diagnostic system
09/08/2005DE102004056739A1 System und Verfahren zum Starten einer Pumpe System and method for starting a pump
09/07/2005CN1664476A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664475A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664474A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664473A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664373A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/07/2005CN1664372A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
09/06/2005US6940245 Downhole compressor system with a feedback sensor
09/01/2005US20050188708 System and method for variable speed operation of a screw compressor
08/2005
08/31/2005EP1567770A1 Screw compressor
08/30/2005US6935853 Variable capacity rotary compressor
08/24/2005CN1659381A Compressor protective method and structure
08/24/2005CN1657784A 变容量型压缩机 Variable capacity compressor
08/23/2005US6932588 Variable capacity rotary compressor
08/17/2005EP1563190A2 Vacuum pump
08/17/2005CN1656319A Methods and apparatus for unloading a screw compressor
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