| 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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| 12/11/1997 | DE19622763A1 Hydraulic control system to maintain constant supply to load |
| 12/11/1997 | DE19622754A1 Verfahren und Schaltung zur Steuerung eines Pumpenmotors eines Fahrzeug-Regelungssystems A method and circuit for controlling a pump motor of a vehicle control system |
| 12/10/1997 | EP0811123A1 Gas actuated slide valve in a screw compressor |
| 12/10/1997 | CN1167361A Operation device for linear compressor |
| 12/10/1997 | CN1167217A Engine/pump controller for loading-machine |
| 12/10/1997 | CN1167216A Control valve for positive-displacement compressor |
| 12/09/1997 | US5695473 Occlusion detection system for an infusion pump |
| 12/09/1997 | US5695325 Synchronized unloader system and method for a gas compressor |
| 12/09/1997 | US5695092 In a treatment system |
| 12/09/1997 | US5694926 Portable drag compressor powered mechanical ventilator |
| 12/09/1997 | CA2065831C Slant plate type compressor with variable displacement mechanism and method of controlling the capacity thereof |
| 12/07/1997 | CA2207257A1 Variable displacement compressor |
| 12/04/1997 | WO1997045642A1 Scroll compressor |
| 12/04/1997 | WO1997045640A1 Bubble detection and recovery in a liquid pumping system |
| 12/03/1997 | EP0810497A1 Method of output correction for control apparatus, the control apparatus, and hydraulic pump control apparatus |
| 12/03/1997 | EP0810370A2 Electronic cam compensation of pressure change of servo controlled pumps |
| 12/03/1997 | EP0809520A1 Pulsed lavage pump |
| 12/03/1997 | CN1166866A Tractive force control apparatus and method of building machinery |
| 12/03/1997 | CN1166427A Intermittent oil pump |
| 12/02/1997 | US5693020 Hose pump for the exact dosing of small quantities of liquids |
| 11/27/1997 | WO1997044622A1 Fuel injection method for a stepped gas turbine combustion chamber |
| 11/27/1997 | WO1997044536A1 Rotary mechanism control system with bilateral braking |
| 11/27/1997 | WO1997044535A1 Rotary mechanism control with power supply |
| 11/27/1997 | DE19640808C1 Operating Polymer Electrolyte Membrane (PEM) fuel cell system with fuel-cell block and compressor e.g. for vehicle electric drive |
| 11/27/1997 | DE19620874A1 Kraftstoffeinspritzung für eine gestufte Gasturbinen-Brennkammer Fuel injection for a staged gas turbine combustor |
| 11/26/1997 | EP0809164A1 Control system for controlling a plurality of vacuum pumps |
| 11/26/1997 | EP0809032A1 Scroll compressor with variable displacement mechanism |
| 11/26/1997 | EP0809023A2 Radial piston pump |
| 11/26/1997 | EP0808421A1 Adjustable hydrostatic pump |
| 11/26/1997 | CN1165916A Variable displacement swash plate compressor |
| 11/25/1997 | US5690828 Automatic analysis |
| 11/25/1997 | US5690479 Multi-stage regulator for variable displacement pumps |
| 11/25/1997 | US5690476 Safety device for avoiding entrapment at a water reservoir drain |
| 11/25/1997 | US5690475 Scroll compressor with overload protection |
| 11/20/1997 | WO1997043548A1 Hydraulic pressure control system for a pump |
| 11/20/1997 | DE19713770A1 Climate control unit for a motor vehicle |
| 11/20/1997 | DE19713413A1 Control valve for variable displacement air-conditioner compressor |
| 11/20/1997 | DE19639555C1 Reciprocating machine such as membrane pump or piston compressor |
| 11/20/1997 | DE19618707A1 Regulating method for regulating volumetric fuel flow from feeder pump to high pressure pump in IC engine common rail fuel injection system |
| 11/20/1997 | CA2254360A1 Hydraulic pressure control system for a pump |
| 11/19/1997 | CN1165570A Method of output correction for control apparatus, the control apparatus and hydraulic pump control apparatus |
| 11/19/1997 | CN1165548A Device for controlling the rotation speed of an engine for a hydraulic working machine |
| 11/18/1997 | US5688111 Valved suction mechanism of a refrigerant compressor |
| 11/13/1997 | WO1997042414A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method |
| 11/13/1997 | WO1997042413A1 Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method |
| 11/13/1997 | WO1997042410A1 Disposable ambulatory microprocessor controlled volumetric pump |
| 11/13/1997 | CA2253666A1 Electromagnetically suspended and rotated centrifugal pumping apparatus and method |
| 11/12/1997 | EP0805922A1 Aircraft hydraulic pump control system |
| 11/06/1997 | DE19716089A1 Variable displacement compressor for vehicle |
| 11/06/1997 | DE19713771A1 Oscillating plate compressor with variable displacement for air conditioner |
| 11/06/1997 | DE19713414A1 Control valve for variable-displacement refrigerant compressor |
| 11/06/1997 | DE19709935A1 Fridge compressor, with variable displacement |
| 11/05/1997 | EP0805274A2 Device for protecting a pump against dry running |
| 11/05/1997 | EP0804685A2 Hydraulically operated actuator |
| 11/05/1997 | CN1164271A Relief valve seat for positive displacement pump |
| 11/04/1997 | US5682745 Bootstrap power steering systems |
| 11/04/1997 | CA2123325C Reverse phase and high discharge temperature protection in a scroll compressor |
| 10/30/1997 | WO1997040300A1 Hydraulic actuation system |
| 10/30/1997 | DE19711956A1 Hydraulisches Antriebssystem mit verminderten Bereitschaftsstellungs-Leistungsverlusten Hydraulic drive system with reduced standby position power losses |
| 10/30/1997 | DE19616784A1 Ground water test device |
| 10/28/1997 | US5681151 Motor driven air compressor having a combined vent valve and check valve assembly |
| 10/28/1997 | US5681150 Piston type variable displacement compressor |
| 10/22/1997 | CN2265442Y Electronic controller for concrete pump |
| 10/21/1997 | US5678985 Scroll machine with capacity modulation |
| 10/16/1997 | WO1997038207A1 Pump-off controller |
| 10/15/1997 | EP0681653B1 Cyclic hydraulic pump |
| 10/15/1997 | CN2264816Y Automatic controller of water pump |
| 10/14/1997 | US5676527 Air pump having an adjustable stroke |
| 10/14/1997 | US5676525 Vacuum limiting medical pump |
| 10/08/1997 | CN1161414A Vibrating compressor |
| 10/07/1997 | US5674281 Artificial heart braking system |
| 10/07/1997 | US5674059 Reciprocating variable displacement rotary vane machine |
| 10/07/1997 | US5674058 Scroll-type refrigerant compressor |
| 10/07/1997 | US5673715 Washing objects and recovering contaminants with optimized pump control |
| 10/07/1997 | US5673557 Displacement control system for variable displacement type hydraulic pump |
| 10/07/1997 | CA2019420C Apparatus for controlling the torque of an engine pump system, and a method thereof |
| 10/02/1997 | WO1997036106A1 Programmable pump monitoring and shutdown system |
| 10/02/1997 | DE19612413A1 Fuel injection system for diesel engine |
| 10/02/1997 | DE19612412A1 Control of fuel pressure in injector system for diesel engine |
| 10/01/1997 | EP0798558A2 Plunger pump for a high performance liquid chromatograph |
| 10/01/1997 | EP0798461A2 Refrigerant circuit with fluid flow control mechanism |
| 09/30/1997 | US5672050 Apparatus and method for monitoring a sump pump |
| 09/30/1997 | US5672049 Electromechanical device for the protection of a pump in waterworks of various types, in the absence of water |
| 09/30/1997 | US5671873 Proportioning apparatus for viscous materials |
| 09/25/1997 | WO1997035133A1 Automatic solenoid control valve calibration |
| 09/24/1997 | EP0797009A2 A fluid power control circuit |
| 09/24/1997 | EP0797000A1 Starting load reducing device for refrigerant compressor |
| 09/24/1997 | EP0796999A2 Variable displacement pump and remote control system therefor |
| 09/24/1997 | CN2263213Y Automatic valve device for discharging tube of irrigation and drainage pump |
| 09/23/1997 | US5670852 Pump motor and motor control |
| 09/23/1997 | US5669877 Systems and methods for automated testing of medical equipment |
| 09/23/1997 | US5669761 Discharge control apparatus of hydraulic pump for automatic transmission |
| 09/22/1997 | CA2200406A1 Arrangement for reducing standby power losses in hydraulic valve controlsystems |
| 09/18/1997 | DE19642832C1 Air-conditioning compressor control method for vehicle |
| 09/18/1997 | DE19621946C1 Air springing arrangement, particularly for motor vehicle |
| 09/17/1997 | EP0795086A1 Vane pump |
| 09/17/1997 | EP0794851A2 Motor driven hydraulic tool |
| 09/17/1997 | EP0667451B1 Hydraulic pump control device for construction machinery |
| 09/17/1997 | CN1159518A Controller for pump torque |
| 09/16/1997 | US5668457 Variable-frequency AC induction motor controller |