| 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) |
|---|
| 12/29/1987 | US4715785 Oil detection apparatus for submersible pumps |
| 12/23/1987 | EP0249757A2 Air dryer purge control for turbocharged compressors |
| 12/23/1987 | DE3620914A1 Reciprocating compressor with starting relief and load regulation, especially for refrigerating machines |
| 12/22/1987 | US4714545 Fluid proportioning pump system |
| 12/22/1987 | US4714483 For heavy duty vehicles with air brake systems |
| 12/22/1987 | CA1230539A1 Variable displacement pump system |
| 12/16/1987 | EP0248839A1 Intermittent service screw compressor. |
| 12/10/1987 | DE3619147A1 Process for compensating for the losses in a pressure- and current-regulated pump |
| 12/08/1987 | US4711616 Control apparatus for a variable displacement pump |
| 12/05/1987 | CN86209096U Automatic ball-shaped gas valve of a piston compressor |
| 12/02/1987 | EP0247236A2 Refrigeration system including capacity modulation |
| 12/01/1987 | US4710108 Isolation valve construction |
| 12/01/1987 | US4710106 Volume controlling device for variable volume pump |
| 12/01/1987 | US4709555 Variable delivery refrigerant compressor of double-acting swash plate type |
| 11/25/1987 | EP0246335A1 Pump drive |
| 11/25/1987 | EP0246227A1 Cyclic speed control apparatus in variable stroke machines. |
| 11/24/1987 | US4708603 Variable displacement pump |
| 11/24/1987 | US4708599 Rotary compressor apparatus |
| 11/24/1987 | US4708598 Rotary type gas compressor |
| 11/24/1987 | US4708596 Device for regulating pressure and delivery of and adjustable pump |
| 11/24/1987 | US4708594 Method of starting a variable-speed pump turbine or a variable speed pump |
| 11/19/1987 | WO1987005225A3 Pressure-measurement flow control system |
| 11/19/1987 | DE3716393A1 Kaelteanlage Kaelteanlage |
| 11/19/1987 | DE3639122A1 Pump arrangement |
| 11/17/1987 | US4706470 System for controlling compressor operation |
| 11/12/1987 | DE3615708A1 Circuit arrangement for regulating the rotation speed of a hydrostatic machine |
| 11/10/1987 | US4705461 Two-component metering pump |
| 11/10/1987 | CA1229025A1 Pressure limiter |
| 11/03/1987 | US4704072 Compressor with rotation sensor |
| 11/03/1987 | US4704069 Method for operating dual slide valve rotary gas compressor |
| 11/03/1987 | US4703627 Compressor malfunction device having engine start-up override |
| 10/27/1987 | US4702674 Method of accurately setting the flow rate of a variable-flow metering pump, and a metering pump employing the method |
| 10/27/1987 | US4702088 Compressor for reversible refrigeration cycle |
| 10/20/1987 | US4701111 Regulation of vane pumps |
| 10/20/1987 | US4701109 Compressor with rotation detecting device |
| 10/20/1987 | US4700680 For an engine |
| 10/14/1987 | EP0240658A1 Fluid proportioning pump system |
| 10/13/1987 | US4699575 Adhesive pump and it's control system |
| 10/13/1987 | US4699571 Control valve for a variable displacement pump |
| 10/13/1987 | US4699570 Vacuum pump system |
| 10/13/1987 | CA1227967A1 Precise pressure regulator for a variable output pump |
| 10/07/1987 | EP0240278A2 Improvements relating to gas compressors |
| 10/06/1987 | US4697990 Variable capacity vane pump with means to vary the area of overlap |
| 09/24/1987 | DE3607466A1 Pumpenaggregat mit einer niveauschalteinrichtung Pump unit with a level switch means |
| 09/23/1987 | EP0238336A1 Gas compressor assemblies |
| 09/23/1987 | EP0037838B1 Method of controlling internal combustion engine and hydraulic pump system |
| 09/22/1987 | US4694732 For altering the effective volume of the cylinder of an air compressor |
| 09/22/1987 | US4694660 Refrigeration system including capacity modulation |
| 09/17/1987 | DE3607115A1 Pneumatic pump control for at least one feed pump |
| 09/16/1987 | EP0236990A2 Gradient system |
| 09/16/1987 | EP0236982A2 Pump |
| 09/16/1987 | EP0108051B1 Regulator for a motor driven pump |
| 09/11/1987 | WO1987005367A1 Pump unit with a level regulator |
| 09/11/1987 | WO1987005225A2 Pressure-measurement flow control system |
| 09/11/1987 | WO1987005224A1 Infiltration detection system using pressure measurement |
| 09/11/1987 | WO1987005223A1 Intravenous line valving system |
| 09/09/1987 | EP0235468A1 Servomechanism |
| 09/09/1987 | EP0235467A1 Rotary fluid energy converter |
| 09/08/1987 | US4692145 Power system for infusion pumps |
| 09/02/1987 | EP0234109A2 Summing pressure compensation control |
| 09/01/1987 | US4691155 Automatic load seeking control for a motor |
| 08/27/1987 | DE3605649A1 Control device with a pump driven by an adjustable speed engine |
| 08/26/1987 | EP0233554A2 Arrangement for building up the withdrawal pressure in a water supply system |
| 08/19/1987 | EP0232722A2 Method and control system for controlling imput power to hydraulic pumps of a hydraulic system |
| 08/18/1987 | US4687421 Frangible pressure relief disc assembly and positive displacement pumps containing the disc assembly |
| 08/18/1987 | US4687138 Device in or for high-pressure cleaning units for heating the water by circulation |
| 08/13/1987 | WO1987004761A1 Piston pump with swash plate or eccentric |
| 08/13/1987 | DE3603148A1 Hydraulic pump, in particular steering booster pump |
| 08/12/1987 | EP0231648A1 Variable capacity vane compressor |
| 08/11/1987 | US4686439 Multiple speed pump electronic control system |
| 08/11/1987 | US4685489 Valve assembly and compressor modulation apparatus |
| 08/11/1987 | CA1225279A1 Variable displacement pump system |
| 08/06/1987 | DE3700997A1 Kolbenpumpe mit einer taumelscheibe oder einem exzenter Piston pump with a swash plate or eccentric |
| 07/30/1987 | WO1987004537A1 Pressure regalator with integrated pick-off |
| 07/30/1987 | WO1987004499A1 A method and arrangement for changing the pressure in pneumatic or hydraulic systems |
| 07/29/1987 | EP0059709B1 Torque and high pressure limiting control for variable displacement pumps |
| 07/29/1987 | EP0059708B1 Horsepower consumption control for variable displacement pumps |
| 07/29/1987 | CN87100122A Input power control system of pump in fluid driving apparatus |
| 07/28/1987 | US4682532 Variable-stroke constant-compression-ratio reversible radial pump |
| 07/21/1987 | US4681513 Two-stage pump assembly |
| 07/21/1987 | US4680931 Constant speed control for positive displacement variable stroke hydraulic motor |
| 07/14/1987 | US4679989 Pump shovel bulk unloader |
| 07/07/1987 | US4678412 Adjusting apparatus for a vane pump or radial piston pump |
| 07/07/1987 | US4678406 Variable volume ratio screw compressor with step control |
| 07/07/1987 | US4678403 Liquid level sensor for controlling pump operation |
| 06/30/1987 | US4676914 Swimming pools; protect from pumping pressure damage |
| 06/24/1987 | EP0226125A2 Variable displacement pump system |
| 06/23/1987 | US4674956 Control valve for a pump with variable displacement volume |
| 06/19/1987 | DE3543707A1 Method for operating an interconnected compressor system |
| 06/18/1987 | WO1987003651A1 Intermittent service screw compressor |
| 06/17/1987 | CN86108529A Dynamic transmission system |
| 06/16/1987 | CA1222941A1 Single stage liquid motor and pump |
| 06/11/1987 | DE3542938A1 Fuel injection pump |
| 06/10/1987 | EP0225126A1 Variable capacity vane compressor |
| 06/09/1987 | CA1222732A1 Scroll type fluid displacement apparatus |
| 06/04/1987 | DE3541838A1 Compressor system |
| 06/02/1987 | US4669272 Variable displacement refrigerant compressor of variable angle wobble plate type |
| 06/02/1987 | CA1222490A1 Lifting device for the valve plates of compressor valves |
| 05/27/1987 | EP0223643A1 Process to define exactly the flow rate of a dosing pump, and such a pump |
| 05/27/1987 | EP0222764A1 Manual and automatic governor for a hydrostatic transmission |