| 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) |
|---|
| 08/25/1993 | CN2140977Y Energy-saving power unit for beam-pumping unit |
| 08/24/1993 | US5238371 Control arrangement for a two-cylinder pump for thick materials |
| 08/24/1993 | US5238369 Liquid level control with capacitive sensors |
| 08/24/1993 | US5237863 Method for detecting pump-off of a rod pumped well |
| 08/18/1993 | EP0555945A1 A capacity control mechanism for scroll-type compressor |
| 08/18/1993 | EP0555612A1 Power limiter control for a variable displacement axial piston pump |
| 08/17/1993 | US5237310 Pump monitor |
| 08/17/1993 | US5236317 Gear pump valving system |
| 08/17/1993 | US5236316 Scroll type compressor |
| 08/17/1993 | US5235821 Method and apparatus for refrigerant recovery |
| 08/11/1993 | EP0554537A1 Machine with axial pistons, particularly hydraulic pump of swash plate or inclined axis type, with an output adjusting device |
| 08/11/1993 | CN1075192A Capacity control mechanism of vortex compressor |
| 08/10/1993 | US5234321 Variable displacement hydrostatic pump and neutral return mechanism therefor |
| 08/10/1993 | US5234319 Sump pump drive system |
| 08/04/1993 | EP0553935A1 Electronically controlled cryopump |
| 08/04/1993 | EP0496803A4 Computer controlled metering pump |
| 08/03/1993 | US5232349 Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape |
| 08/01/1993 | WO1993014974A1 Package system for collection-transport of waste liquids |
| 07/28/1993 | EP0553002A1 Protecting device for a primary pump |
| 07/27/1993 | US5230607 Method and apparatus for controlling the operation of a pumpjack |
| 07/27/1993 | US5230222 Compressor crankcase heater control |
| 07/22/1993 | DE3348409C2 Automobile windscreen washer unit |
| 07/21/1993 | EP0423257B1 Device for a variable displacement hydrostatic pump |
| 07/20/1993 | US5228802 Underground drainage facility and operation method therefor |
| 07/17/1993 | WO1993014317A1 Variable pressure inlet system for hydraulic pumps |
| 07/17/1993 | CA2099666A1 Variable pressure inlet system for hydraulic pumps |
| 07/16/1993 | CA2064256A1 Pressure washer with pressure bypass |
| 07/13/1993 | US5226800 Displacement controlling circuit system for variable displacement pump |
| 07/13/1993 | US5226289 Control system for automatically regulating the displacement setting of a plurality of hydrostatic pumps |
| 07/08/1993 | WO1993013317A1 Reverse phase and high discharge temperature protection in a scroll compressor |
| 07/08/1993 | WO1993013315A1 Pump-off control by integrating a portion of the area of a dynagraph |
| 07/07/1993 | EP0550228A1 Swash plate type compressor with variable displacemnet mechanism |
| 07/07/1993 | EP0550201A1 Slant plate type compressor with variable capacity control mechanism |
| 07/07/1993 | EP0549883A1 Control system for hydraulic pumps of the variable displacement type |
| 07/06/1993 | US5224839 Variable delivery pump |
| 07/06/1993 | US5224837 Apparatus for recovery of liquid hydrocarbon |
| 07/06/1993 | US5224836 Control system for prime driver of compressor and method |
| 07/06/1993 | US5224834 Pump-off control by integrating a portion of the area of a dynagraph |
| 07/06/1993 | CA1319830C Pump pressure sensor |
| 06/30/1993 | EP0549439A1 Method and apparatus for optimising the transport of multiphase flows by pumping |
| 06/30/1993 | CN1073751A Pressure ratio responsive unloader |
| 06/24/1993 | WO1993012342A1 Initial pressure governor for a variable displacement pump |
| 06/22/1993 | US5221189 Soft start fire pump controller |
| 06/22/1993 | US5220939 Flow control apparatus |
| 06/17/1993 | DE4240513A1 Drain pump for fluids, esp. in domestic appliance, e.g. dishwasher, washing machine - has phase-gate controller for single phase permanent magnet motor running at reduced voltage after starting period |
| 06/17/1993 | DE4141108A1 Einrichtung zur regelung des ausgangsdruckes einer verstellpumpe Means for control of the output pressure of a variable displacement pump |
| 06/17/1993 | DE4140801A1 Externally activated radial piston pump - has several hollow pistons in bores of pump ring body which are in effective connection with eccentric of drive shaft. |
| 06/16/1993 | EP0546982A1 Compressor crankcase heater control |
| 06/16/1993 | EP0546981A2 Three phase compressor over temperature protection |
| 06/15/1993 | US5220259 Dc motor drive system and method |
| 06/09/1993 | EP0545847A1 Pressure ratio responsive unloader |
| 06/08/1993 | US5217355 Two-cycle peristaltic pump with occlusion detector |
| 06/02/1993 | EP0544410A2 Irrigation system with high flow bypass for use with endoscopic procedure |
| 06/02/1993 | EP0544163A1 Liquid coolant circulation control system for immersion cooling systems |
| 06/02/1993 | EP0544105A1 Energy efficient piston type compressor |
| 06/01/1993 | US5215444 System for controlling oil viscosity and cleanliness |
| 05/27/1993 | WO1993010354A1 Pump |
| 05/27/1993 | DE4138516A1 Pumpe Pump |
| 05/26/1993 | EP0543471A2 Apparatus and method for supercritical fluid extraction |
| 05/26/1993 | EP0543419A2 Power steering device having electrically driven pump |
| 05/26/1993 | CN1020943C Low pressure recirculation valve |
| 05/26/1993 | CN1020942C Pressure compensating variable hydraulic pump control system |
| 05/25/1993 | US5213478 Slurry pumping method and apparatus |
| 05/25/1993 | US5213477 Pump delivery flow rate control apparatus |
| 05/19/1993 | CN2133690Y Starting self-lock gas-pressure automatic switch |
| 05/18/1993 | US5211544 For delivery of lubricating oil |
| 05/18/1993 | US5211542 Method and apparatus for oil sump pressure control |
| 05/18/1993 | US5211026 Combination lift piston/axial port unloader arrangement for a screw compresser |
| 05/16/1993 | CA2082896A1 Liquid coolant circulation control system for immersion cooling systems |
| 05/12/1993 | EP0540915A1 Fine pressure control system for high pressure gas |
| 05/11/1993 | US5209648 Rotary-vane pump |
| 05/11/1993 | US5209064 Device for mutual immobilization of two elements mounted for relative rotation |
| 05/05/1993 | EP0540284A2 Hydraulic piston pump with servo displacement control |
| 05/05/1993 | EP0539721A1 An apparatus for on/off controlling a pump in a water distribution network |
| 05/05/1993 | CN2132001Y Adjustable flowmetering pump |
| 05/04/1993 | US5207381 Calibration of fluid delivery equipment |
| 05/04/1993 | US5207206 Method for controlling the supercharge pressure in internal combustion engine |
| 04/30/1993 | CA2081545A1 Irrigation system with high flow bypass for use with endoscopic procedure |
| 04/29/1993 | DE4135013A1 Hydraulic load-sensing drive system for earth moving machinery - has load signalling, which is blocked when consumer is connected and contains shut=off valve |
| 04/27/1993 | US5205718 Variable displacement swash plate type compressor |
| 04/27/1993 | US5205201 Displacement control valve |
| 04/22/1993 | DE4134184A1 Adjustable hydrostatic pump - has piston stroke adjusted dependent upon rpm, to limit feed flow |
| 04/21/1993 | EP0538179A1 High to low side bypass to prevent reverse rotation |
| 04/21/1993 | EP0538123A1 Diaphragmpump with continuously adjustable delivery between zero and a maximum value |
| 04/21/1993 | EP0537673A2 Method for controlling the rotational speed of a motor-compressor used in an air conditioner |
| 04/20/1993 | US5203803 Reverse osmosis water purifier booster pump system |
| 04/15/1993 | WO1993007496A1 Process for measuring the rotation speed of a rotating component |
| 04/15/1993 | DE4133424A1 Full stroke safety valve - has ring space under piston ring face, connected via bore and control chamber, to relief bore |
| 04/15/1993 | DE4133269A1 Verfahren zur messung der drehzahl eines rotierenden teiles Method for measuring the speed of a rotating part |
| 04/14/1993 | EP0537051A1 Installation for the pumping of gas with pumping speed regulation |
| 04/14/1993 | EP0536267A1 Adjustable rotor for a radial piston fluid machine |
| 04/13/1993 | US5201803 Hydraulic system for a vehicle |
| 04/13/1993 | US5201637 Hydraulic piston pump with servo displacement control |
| 04/13/1993 | US5201636 Stator current based malfunction detecting system in a variable flow delivery pump |
| 04/13/1993 | US5201294 Common-rail fuel injection system and related method |
| 04/13/1993 | US5201189 Refrigerant compressor with an initial seizure prevention means |
| 04/13/1993 | US5201175 Hydraulic actuating system and method |
| 04/13/1993 | CA1316045C Pump station |
| 04/06/1993 | US5199855 Variable capacity compressor having a capacity control system using an electromagnetic valve |
| 04/06/1993 | US5199853 Pneumatic flow control system |