| Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036) |
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| 05/29/2013 | CN202954935U Special electro hydraulic pump for multilevel flow hydraulic pressure wrench |
| 05/29/2013 | CN103122849A 空压机卸荷系统和电动车辆 Compressor unloading systems and electric vehicles |
| 05/29/2013 | CN103122848A Infusion pump |
| 05/29/2013 | CN103122845A Displacement control valve |
| 05/29/2013 | CN103122838A Oil-gas recovery explosion proof vacuum pump |
| 05/29/2013 | CN102057160B Double reciprocation pump |
| 05/29/2013 | CN101495754B System and method for operation of a pump |
| 05/28/2013 | US8449265 Hydraulically actuated reciprocating pump |
| 05/28/2013 | CA2707376C Device and method for gas lock detection in an electrical submersible pump assembly |
| 05/23/2013 | WO2012146662A3 Pump system |
| 05/23/2013 | US20130129530 Compressor unloading device |
| 05/23/2013 | US20130129527 Robust electric screw compressor blocked air line detection via motor current monitoring |
| 05/23/2013 | US20130126025 Air compressors |
| 05/22/2013 | EP2593679A2 Hydraulic assembly |
| 05/22/2013 | EP2593677A1 A control method for a resonant linear compressor and an electronic control system for a resonant linear compressor applied to a cooling system |
| 05/22/2013 | CN202948729U Water cooling system for heating device |
| 05/22/2013 | CN202946360U Oil pump motor regulator |
| 05/22/2013 | CN202946359U Low-pressure heating drain pump adjusting control system |
| 05/22/2013 | CN202946358U Control system of turboset condensate pump |
| 05/22/2013 | CN202946357U Waterlogging drainage pumping station automatic control device |
| 05/22/2013 | CN202946356U 水泵传感器 Pump Sensor |
| 05/22/2013 | CN202946355U Integrative water pump sensing controller |
| 05/22/2013 | CN202946354U Control device of compressor liquid jet and air conditioning system |
| 05/22/2013 | CN202946350U Smart oil level controller |
| 05/22/2013 | CN103114985A Multifunctional no-water protector of garden pump |
| 05/22/2013 | CN103114984A Control system and control method for opening and closing type pump test |
| 05/22/2013 | CN103114983A Pumping stroke control method for viscous material double-cylinder pump and pumping equipment for viscous material |
| 05/22/2013 | CN103114980A Pumping stroke control method of double-cylinder pump and pumping device |
| 05/22/2013 | CN101163887B System and method for controlling a variable speed compressor during stopping |
| 05/21/2013 | US8444395 Variable displacement variable pressure vane pump system |
| 05/21/2013 | US8444394 Pump controller system and method |
| 05/21/2013 | US8444393 Rod pump control system including parameter estimator |
| 05/21/2013 | US8444392 Pressure control |
| 05/16/2013 | WO2013069374A1 Closed hydraulic circuit system |
| 05/16/2013 | US20130121860 Retrofit of a reciprocating compressor with a concentric valve |
| 05/16/2013 | US20130121845 Compressor starting method and apparatus |
| 05/16/2013 | US20130121844 Variable Speed High Efficiency Gas Compressor System |
| 05/15/2013 | EP2591236A1 Garden pump arrangement having a flow sensor |
| 05/15/2013 | CN202937444U Novel water pump control valve |
| 05/15/2013 | CN202937432U Frequency conversion air compressor energy-saving control and remote wireless management system |
| 05/15/2013 | CN202937431U Automatic water pump for irrigation |
| 05/15/2013 | CN103104481A Novel water pump control valve |
| 05/15/2013 | CN103104477A Asymmetric valve plate for fixed pure water hydraulic axial plunger pump |
| 05/15/2013 | CN103104456A Fire pump flow pressure-adjusting method |
| 05/15/2013 | CN103104455A Fire pump automatic cleaning device |
| 05/15/2013 | CN103104454A Fire pump flow pressure-adjusting device |
| 05/15/2013 | CN103104453A Control method and device for cooling system |
| 05/15/2013 | CN103104452A Pumping displacement controller, pumping system, pump truck and pumping displacement control method |
| 05/15/2013 | CN103104451A Pumping discharge capacity controller, pump truck and pumping discharge capacity control method |
| 05/15/2013 | CN103104450A Frequency-conversion speed regulating device applied to oilfield water injection system |
| 05/15/2013 | CN103104449A Frequency-conversion speed regulating device and frequency-conversion speed regulating method applied to oilfield water injection system |
| 05/15/2013 | CN103104448A Quality monitoring method for oil well pump |
| 05/15/2013 | CN103104441A Vacuum pumping system and pumping method of space environment simulator for simulating lunar dust environment |
| 05/15/2013 | CN103104435A Multiple-pump group intelligent emulsion pump station |
| 05/15/2013 | CN101990446B Infusion pump |
| 05/15/2013 | CN101427190B Centrifugal pump unit with switching device |
| 05/14/2013 | US8439805 Hydraulic system of a gear box |
| 05/14/2013 | US8439653 Pump for a high-pressure cleaning apparatus |
| 05/14/2013 | US8439652 Suction throttle valve for variable displacement type compressor |
| 05/14/2013 | US8439650 Flow-controllable cell pump with pivotable control slide valve |
| 05/14/2013 | US8439648 Process water lift station apparatus |
| 05/14/2013 | US8439069 Air release valve |
| 05/10/2013 | WO2013067206A1 Flow locking system and method |
| 05/10/2013 | WO2013065097A1 Coolant supply device and supply method |
| 05/10/2013 | CA2854162A1 Flow locking system and method |
| 05/09/2013 | US20130115114 System for detecting contaminants in an intake flow of a compressor |
| 05/09/2013 | US20130115110 Processing chamber integrated pressure control |
| 05/09/2013 | US20130115109 Compressor discharge temperature monitor and alarm |
| 05/09/2013 | US20130115108 Hydraulic power system |
| 05/09/2013 | US20130115104 Calculating Downhole Pump Card With Iterations on Single Damping Factor |
| 05/09/2013 | US20130112173 Method and apparatus to monitor an electric motor in a returnless fuel system |
| 05/09/2013 | US20130111865 Starter system for an engine |
| 05/08/2013 | EP2589807A1 Folding bellows pump |
| 05/08/2013 | CN202926598U Self-propelling automatic re-circulating pump protection valve |
| 05/08/2013 | CN202926577U Multi-tandem valve speed adjusting system |
| 05/08/2013 | CN202926576U Water shortage protection device for multifunctional road and bridge integrated machine for road maintenance |
| 05/08/2013 | CN202926575U Frequency converter of air compressor for jet milling of sintered Nd-Fe-B |
| 05/08/2013 | CN202926574U Power station water discharge control system |
| 05/08/2013 | CN202926573U Cooling water control system for power station machine unit |
| 05/08/2013 | CN202926572U Power station air compressor control system |
| 05/08/2013 | CN202926571U Automatic drainage controller for pneumatic diaphragm pump |
| 05/08/2013 | CN202926570U Hydraulic machine and automatic control device of circulating water system thereof |
| 05/08/2013 | CN202926569U One-station multi-well type rodless hydraulic oil extraction system |
| 05/08/2013 | CN202926546U Hand-holding-type air charging device |
| 05/08/2013 | CN202926539U Device capable of realizing continuous constant flow pumping of concrete |
| 05/08/2013 | CN103097730A Liquid feed pump and flow rate control device |
| 05/08/2013 | CN103097729A A control method for a resonant linear compressor and an electronic control system for a resonant linear compressor applied to a cooling system |
| 05/08/2013 | CN103097670A Apparatus for compressing and expanding a gas |
| 05/08/2013 | CN103089603A Transverse-placing type electromagnetic control valve structure and regulation methods thereof |
| 05/08/2013 | CN103089600A Debugging device for variable displacement piston pump flow control valve |
| 05/08/2013 | CN103089599A Compression pump protection circuit and compression pump control method |
| 05/08/2013 | CN103089598A Control method of air conditioning compressor |
| 05/08/2013 | CN103089597A Control method of high-pressure variable-frequency water pump system |
| 05/08/2013 | CN103089596A Pump control system |
| 05/08/2013 | CN103089595A Intelligent energy-saving low-noise piston type air compressor |
| 05/08/2013 | CN103089591A Vacuumizing device used for keycap drawing force test |
| 05/08/2013 | CN102022303B Dual-driving oil pump and control system thereof |
| 05/08/2013 | CN102003376B Water mixing pump system and control method thereof |
| 05/08/2013 | CN101558243B Engine load control device of work vehicle |
| 05/08/2013 | CN101495785B A method of operating a fluid-working machine and a fluid-working machine |