| 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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| 01/15/2014 | CN203394698U Feed pump system driven by back pressure-type small steam turbine for speed regulation of power frequency generator |
| 01/15/2014 | CN203394697U Feed pump system driven by back pressure-type small steam turbine for speed regulation of variable frequency generator |
| 01/15/2014 | CN103518063A Arrangement for throttling a fluid flow and corresponding piston pump for transporting fluids |
| 01/15/2014 | CN103516287A Calculating method and calculating device |
| 01/15/2014 | CN103511236A Power-supply control system of electric submersible pump |
| 01/15/2014 | CN103511234A Piston type oil well pump |
| 01/15/2014 | CN103511216A Injection pump, injection system and injection method |
| 01/15/2014 | CN103511213A Double-valve-plate air-pressure liquid pump |
| 01/15/2014 | CN103511006A Emergency trip accelerator |
| 01/14/2014 | US8628309 Turbomolecular pump device and controlling device thereof |
| 01/14/2014 | US8628307 Proximity-sensor support, a compressor, a valve plate and a cooler |
| 01/09/2014 | WO2014007739A1 Method for controlling a pump station |
| 01/09/2014 | WO2014005839A1 Electrohydraulic lifting device and method for controlling said electrohydraulic lifting device |
| 01/09/2014 | WO2013173524A9 Clinical diagnostic system including instrument and cartridge |
| 01/09/2014 | US20140010674 Pump facility for a hearing device and method of inflating and deflating an earmold member |
| 01/09/2014 | US20140010668 Vehicle lubrication flow control |
| 01/09/2014 | US20140010667 Device and method for uptake or release of a liquid |
| 01/08/2014 | EP2682610A1 Regulator system of a hydraulic variable capacity pump |
| 01/08/2014 | CN203384023U Compressor overload protection system |
| 01/08/2014 | CN203384022U Frequency conversion and constant voltage control system of emulsion pump |
| 01/08/2014 | CN203384021U Control system of variable pump |
| 01/08/2014 | CN203384020U Control device for mining water pumps |
| 01/08/2014 | CN203384019U Electricity-saving cabinet energy-saving control system for cooling tower water pump |
| 01/08/2014 | CN203384018U Air compressor energy-saving cabinet control system |
| 01/08/2014 | CN203384012U Pneumatic clutch energy-saving protection device for overloaded vehicle air compressor |
| 01/08/2014 | CN103503301A Assembly for controlling an electric vacuum pump |
| 01/08/2014 | CN103502643A Control device of variable-capacity pump |
| 01/08/2014 | CN103500683A Water pump pressure switch |
| 01/08/2014 | CN103498787A Project maintenance vehicle main compressor control method and control device |
| 01/08/2014 | CN102434443B Control device, control method and concrete pump for viscous body pumping mechanism |
| 01/08/2014 | CN101959729B Compressor system, and method for the operation of a compressor system |
| 01/07/2014 | US8622717 High-performance oil pump |
| 01/07/2014 | US8622713 Method and apparatus for detecting the fluid condition in a pump |
| 01/07/2014 | US8622712 Sprinkler-compatible ceiling fans |
| 01/07/2014 | US8622711 Fan control circuit |
| 01/03/2014 | WO2014002435A1 Horsepower limiting device and horsepower limiting method |
| 01/02/2014 | US20140003982 Pump having a throttle |
| 01/02/2014 | US20140000736 Compressor manifold assembly |
| 01/02/2014 | CA2831759A1 Apparatus and method for operating a plurality of hyraulic pumps |
| 01/01/2014 | EP2679820A1 Variable Radial Fluid Device with Counteracting Cams |
| 01/01/2014 | EP2679819A1 Variable Radial Fluid Devices in Series |
| 01/01/2014 | CN203374465U Device for preventing and releasing water hammer pressure of pump station |
| 01/01/2014 | CN203374464U Combustor booster pump pressure regulator of asphalt mixing station |
| 01/01/2014 | CN203374463U Automatic controller of water pump |
| 01/01/2014 | CN203374462U Water pouring and discharging system for water transporting vehicle |
| 01/01/2014 | CN203374461U Frequency-conversion pressurizing control device of geothermal well |
| 01/01/2014 | CN203374460U Water pump variable frequency and power frequency control circuit |
| 01/01/2014 | CN203374459U Double-pump linkage control system |
| 01/01/2014 | CN203374458U Air compressor and display system thereof |
| 01/01/2014 | CN103490696A Control device for linear motor used in refrigerator compressor |
| 01/01/2014 | CN103489705A Floater liquid level switch and external water pump provided with same |
| 01/01/2014 | CN103487766A Methods and systems for monitoring a power supply for a fire pump motor |
| 01/01/2014 | CN103486016A Valve plate for low-noise anti-cavitation plunger pump |
| 01/01/2014 | CN103486014A Electron pressure controller |
| 01/01/2014 | CN103486013A Air compressor controller with networking function and air compressor system thereof |
| 01/01/2014 | CN103486012A Fire pump control system and fire pump controller |
| 01/01/2014 | CN103114983B Pumping stroke control method for viscous material double-cylinder pump and pumping equipment for viscous material |
| 01/01/2014 | CN102278095B Automatic reversing mechanism for rodless oil pumping unit |
| 12/31/2013 | US8616858 Dual positive displacement pump pressure regulating control |
| 12/31/2013 | US8616857 Oil pump unit with variable flow rate |
| 12/31/2013 | US8616855 Integral compressor motor and refrigerant/oil heater apparatus and method |
| 12/31/2013 | CA2743619C Pressure washer device employing a cool bypass |
| 12/27/2013 | WO2013192036A1 Linear displacement pump with position sensing and related systems and methods |
| 12/26/2013 | US20130343937 Oil pump with selectable outlet pressure |
| 12/26/2013 | US20130343936 Pump chamber configured to contain a residual fluid volume for inhibiting the pumping of a gas |
| 12/26/2013 | US20130343911 Dual Redundancy in Fire Pump Controllers |
| 12/26/2013 | US20130343910 Methods and Systems for Monitoring a Power Supply for a Fire Pump Motor |
| 12/26/2013 | US20130343905 Pump motor control assembly |
| 12/25/2013 | EP2676032A1 High-pressure pump for a fuel injection device |
| 12/25/2013 | CN203368014U Soft start protection device and compressor diagnosis protection device comprising same |
| 12/25/2013 | CN203362504U Pump containing wedges |
| 12/25/2013 | CN203362491U Quick-type manual hydraulic pump |
| 12/25/2013 | CN203362483U Plunger pump with three-plate structure |
| 12/25/2013 | CN203362482U Infrared-controlled speed regulating water pump |
| 12/25/2013 | CN203362481U Safe magnetic drive pump knockout device |
| 12/25/2013 | CN203362480U Direct-cooling cycle-type variable-frequency speed control system |
| 12/25/2013 | CN203362479U Electric contact pressure gauge control circuit |
| 12/25/2013 | CN203362478U Gear-shifting water pump |
| 12/25/2013 | CN203362477U Clock control and optoelectronic isolation filtering device of water supply device |
| 12/25/2013 | CN203362476U Slurry circulating pump energy saving control system in wet desulphurization process |
| 12/25/2013 | CN203362475U Control circuit capable of pumping water in remote control mode |
| 12/25/2013 | CN203362474U Single-phase water pumping control device |
| 12/25/2013 | CN203362473U Pressure-regulating variable-frequency water pump |
| 12/25/2013 | CN203362472U Automatic control system used for water supply plant |
| 12/25/2013 | CN203362471U Automatic water pumping device |
| 12/25/2013 | CN203362470U Hydraulic switch structure for water pump |
| 12/25/2013 | CN203362465U Membrane pump connection structure |
| 12/25/2013 | CN203362462U 压缩机系统 Compressor Systems |
| 12/25/2013 | CN103477075A Discharge vacuum relief valve for safety vacuum release system |
| 12/25/2013 | CN103470487A Modular structure of electrical accessories of compressor |
| 12/25/2013 | CN103470486A Intelligent submersible pump control box |
| 12/25/2013 | CN103470485A Variable pump power control method, equipment, system and concrete pumping device |
| 12/25/2013 | CN103470484A Remote controller of motor-pumped-well water pump |
| 12/25/2013 | CN103470483A Control method and system of compressor |
| 12/25/2013 | CN103470482A Silicon-controlled water pump pressure regulation control device |
| 12/25/2013 | CN103062027B Control method used for concrete pumping machinery and controller |
| 12/25/2013 | CN102032162B Digital speed regulation system and method for nuclear power station feed pump |
| 12/25/2013 | CN101903227B Compressor and method for controlling compressor for supplying compressed air to utility vehicle |
| 12/24/2013 | US8613600 Vacuum pump system |
| 12/19/2013 | WO2013185445A1 Flow distribution system and flow distribution method |