| 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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| 03/14/2000 | US6036450 Variable capacity vane compressor |
| 03/14/2000 | US6036449 Air compressor control |
| 03/14/2000 | US6036445 Electric shifting mechanism/interface for fluid power diaphragm pumps |
| 03/14/2000 | US6035828 Hydraulically-actuated system having a variable delivery fixed displacement pump |
| 03/11/2000 | CA2246850A1 Flow responsive time delay pump motor cut-off logic |
| 03/09/2000 | WO2000012901A1 Fluid compressor aftercooler temperature control system and method |
| 03/09/2000 | WO2000012898A1 Pump controller |
| 03/09/2000 | DE19935810A1 Compressed air generator has outlet device with two outlet passages in parallel, pilot-controlled on/off valve in first and magnetically controlled valve in second |
| 03/08/2000 | EP0983439A1 Water blasting system with improved pressure control and method |
| 03/07/2000 | US6033188 Means and method for varying margin pressure as a function of pump displacement in a pump with load sensing control |
| 03/02/2000 | WO2000011339A1 Control unit for controlling the build-up of pressure in a pump unit |
| 03/02/2000 | DE19939015A1 Compressor for gas-form fluid has suction through passage for fluid feed with control valve controlling open surface of suction through passage |
| 03/02/2000 | DE19839233A1 Installation for compression of fluidized gas involves compressor with cylinder and piston, storage tank for fluidized gas and evaporator, piston moving in cylinder at speed between 1 and 250 mm/s. |
| 03/02/2000 | DE19837557A1 Hydraulic compact unit for supply of pressure medium to connected user incorporates pump driven by drive unit, storage tank from which pump sucks pressure medium and control block regulating pressure medium flow to and from user |
| 03/02/2000 | DE19837100A1 System for controlling compressed air compressor system with at least two compressors activated or deactivated by control unit |
| 03/02/2000 | DE19818174C2 Verfahren und Vorrichtungen zur Ansteuerung einer Pumpe zur Hilfsdruckversorgung einer Fahrzeugbremsanlage Methods and apparatus for controlling a pump for auxiliary pressure supply of a vehicle brake system |
| 03/01/2000 | EP0982498A1 Capacity control scroll compressor |
| 03/01/2000 | EP0982497A1 Compressor capacity modulation |
| 03/01/2000 | EP0904467B1 Rotary mechanism control with power supply |
| 03/01/2000 | CN2366584Y Multi-functional water power control valve |
| 03/01/2000 | CN1245869A Load regulation for compressor |
| 02/29/2000 | US6031352 Active alternator load circuit |
| 02/29/2000 | US6030185 Radial piston pump |
| 02/29/2000 | US6030183 Variable margin pressure control |
| 02/29/2000 | US6030182 Variable displacement pump and optional manual or remote control system therefor |
| 02/24/2000 | WO2000009862A1 Microturbine power generating system including variable-speed gas compressor |
| 02/24/2000 | WO2000009270A1 Dosage dispenser |
| 02/24/2000 | DE19837332A1 Control unit for controlling the build up of pressure in a pump unit such as an internal combustion engine fuel pump |
| 02/24/2000 | DE19837034A1 Dosing dispenser for high or low viscosity mixtures, e.g. suntan lotion |
| 02/24/2000 | DE19831587A1 Leistungsregelvorrichtung zur Regelung der hydraulischen Leistung einer Hydropumpe Capacity control device for controlling the hydraulic capacity of a hydraulic pump |
| 02/24/2000 | CA2340431A1 Microturbine power generating system including variable-speed gas compressor |
| 02/23/2000 | EP0981196A2 A power supply for a vibrating compressor |
| 02/23/2000 | CN1049721C Shaft locking limiting protection structure for radial plunger type hydraulic motor and pump |
| 02/22/2000 | US6026587 Intercooler blowdown valve |
| 02/17/2000 | WO2000008746A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump |
| 02/17/2000 | WO1999055468A3 Dosing dispenser |
| 02/17/2000 | DE19836917A1 Control unit for hydraulic supply of high speed pressure injection molding machine includes two pumps and pressure limiting valves with control systems assuring smooth operation |
| 02/17/2000 | CA2305457A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump |
| 02/16/2000 | EP0979946A1 Variable displacement compressor |
| 02/16/2000 | EP0979944A2 Bypass valve arrangement for a high pressure cleaner and high pressure cleaner with such a bypass valve arrangement |
| 02/16/2000 | EP0979942A2 Variable displacement compressor |
| 02/16/2000 | CN2364244Y Waterless running protector for water pump |
| 02/15/2000 | US6024539 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 02/15/2000 | US6024008 Variable displacement compressor, swash plate, and method for hardening swash plate |
| 02/10/2000 | WO2000006904A1 Identification and communication system for inflatable devices |
| 02/10/2000 | WO2000006903A1 Fluid vacuum safety device for fluid transfer systems |
| 02/10/2000 | WO2000006895A1 Fuel supply system of an internal combustion engine |
| 02/10/2000 | DE19934988A1 Compressor with variable displacement in accordance with angle of inclination of drive disc arranged in crankcase has piston connected to drive disc and reciprocated by movement of drive disc |
| 02/10/2000 | DE19931075A1 Compressor with variable displacement has outlet chamber, suction chamber and crankcase together with displacement control valve system for control of piston stroke by adjustment of pressure in crankcase |
| 02/10/2000 | DE19835015A1 Hydrostatic drive system has control valve device operated electrically and actual movement speed transmitter of load is provided, both communicating with electronic control device |
| 02/10/2000 | DE19834955A1 Hydrostatic drive system has delivery stream sensor detecting flow of pressure medium from load to reservoir and/or another detecting flow from pump to load |
| 02/09/2000 | EP0978652A2 Hybrid compressor and control method |
| 02/09/2000 | CN1243937A Method for controlling compressor of refrigerator |
| 02/08/2000 | US6022195 Electronically controlled vacuum pump with control module |
| 02/08/2000 | US6021761 High-pressure pump for fuel delivery in fuel injection systems of internal combustion engines |
| 02/03/2000 | DE19834121A1 Kraftstoffversorgungsanlage einer Brennkraftmaschine Fuel supply system of an internal combustion engine |
| 02/03/2000 | DE19833700A1 Pressure control for hydraulic servo pump has a spring loaded control valve with a conical valve element to progressively close the hydraulic outlet with increasing pump pressure |
| 02/03/2000 | DE19831586A1 Leistungsregelvorrichtung zur Regelung der hydraulischen Leistung in einer Arbeitsleitung Capacity control device for controlling the hydraulic capacity in an operating line |
| 02/03/2000 | DE19828553C1 Pump control method for automobile electrohydraulic braking system |
| 02/03/2000 | DE19828552C1 Pump control method for automobile electrohydraulic braking system |
| 02/01/2000 | US6018957 Method and apparatus for controlling beats and minimizing pulsation effects in multiple compressor installations |
| 02/01/2000 | CA2198907C Bimodal liquid chromatography pump employing artificial intelligence logic feedback control |
| 01/27/2000 | WO2000004289A2 Diaphragm pump including improved drive mechanism and pump head |
| 01/27/2000 | DE19929770A1 Oil pump control device for automatic transmission of motor vehicle sets pump speed according to stationary or braking state of vehicle |
| 01/27/2000 | DE19833373A1 Supply flow regulating device for displacement pump, with movable sprung piston having throttle boring into which conical pin projects |
| 01/26/2000 | EP0974752A2 Feedback control circuit for a variable speed hydromotor |
| 01/26/2000 | EP0974008A1 Injection system, pressure valve, flow control valve, and method for setting the fuel pressure |
| 01/25/2000 | US6017194 Method of controlling the drive means for a pump delivering liquid to an accumlator |
| 01/25/2000 | US6017192 System and method for controlling screw compressors |
| 01/25/2000 | US6016790 High-pressure pump for use in fuel injection system for diesel engine |
| 01/25/2000 | US6016786 Fuel injection system |
| 01/20/2000 | DE19831997A1 Verfahren zur Regelung des Drucks eines Fluids Method for regulating the pressure of a fluid |
| 01/19/2000 | EP0973082A1 Method for controlling a fluid pressure |
| 01/19/2000 | EP0972944A2 Control of scroll compressor at shutdown to prevent unpowered reverse rotation |
| 01/19/2000 | EP0972940A2 Power control unit to control the hydraulic power in a drive line |
| 01/19/2000 | EP0972939A2 Power control for multiple hydropumps |
| 01/19/2000 | CN2359493Y Protector for water pump |
| 01/19/2000 | CN2359492Y Automatic control device for oil pump |
| 01/18/2000 | CA2052350C Scroll type compressor |
| 01/13/2000 | WO2000001947A2 Pump mechanism |
| 01/11/2000 | US6012903 Positive-displacement liquid-metering pump with continuously variable output |
| 01/05/2000 | EP0969209A2 Scroll-type variable-capacity compressor |
| 01/05/2000 | DE4309380C2 Verfahren zur Überwachung eines Systems Method for monitoring a system |
| 01/05/2000 | CN1240256A Oil pump |
| 01/05/2000 | CN1240254A Volume variable swashplate compressor and capacity controller |
| 01/04/2000 | US6010311 Hydraulic radial piston machines |
| 01/04/2000 | US6010309 Control device for variable capacity pump |
| 12/30/1999 | DE19927400A1 Hydraulic advancing unit, eg for use in vehicles |
| 12/30/1999 | DE19859026C1 Electrohydraulic regulator for combined delivery rate and pressure regulation for an adjustable hydraulic pressure generator |
| 12/30/1999 | DE19843120C1 Adjustable radial piston pump or motor |
| 12/29/1999 | WO1999067534A1 Hydraulic delivery device |
| 12/29/1999 | EP0967394A1 Turbo molecular pump |
| 12/29/1999 | EP0967096A1 Air conditioning system and compressor |
| 12/29/1999 | EP0966608A2 Flow control valve for a pressure washer |
| 12/29/1999 | EP0966605A1 Fuel injection device for internal combustion engines |
| 12/29/1999 | EP0832361B1 Vane cell pump |
| 12/29/1999 | CN1240017A Improved gas actuated slide valve in screw compressor |
| 12/29/1999 | CN1047824C Intermittent oil pump |
| 12/28/1999 | US6007310 Volumetric pump with sterility seal |
| 12/28/1999 | US6006603 Compressed air maintenance device |