| 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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| 01/04/1989 | EP0297514A1 Refrigerant circuit with passagaway control mechanism |
| 01/04/1989 | EP0182788B1 Hydrostatic vehicle control |
| 01/03/1989 | US4795314 Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals |
| 12/29/1988 | WO1988010460A2 Fluid composition and volumetric delivery control |
| 12/28/1988 | CA1247719A Well production control system |
| 12/20/1988 | US4791858 Piston machine |
| 12/14/1988 | EP0294858A2 System and device for having desired liquid volumes supplied by a metering pump in variable flow rate condition |
| 12/14/1988 | EP0294776A1 Control circuit for a hydraulic adjusting device |
| 12/13/1988 | US4791329 Motor protector mounting structure for enclosed electric compressors |
| 12/13/1988 | US4790728 Dual-rigid-hollow-stem actuators in opposite-phase slurry pump drive having variable pumping speed and force |
| 12/07/1988 | EP0294344A2 A reciprocating volumetric piston compressor and apparatus for supplying compressed air to a pressure reservoir in a pneumatic braking system for motor vehicles |
| 12/07/1988 | EP0293592A2 Disposable fluid infusion pumping chamber cassette and drive mechanism thereof |
| 12/06/1988 | US4789307 Floating pump assembly |
| 12/01/1988 | WO1988009277A1 Hydraulic pump with integrated sump and accumulator |
| 11/29/1988 | US4787822 Volume control for multi-nozzle rotary pump filling systems |
| 11/29/1988 | US4787211 Refrigeration system |
| 11/23/1988 | EP0291625A1 Plural hydraulic pump system with automatic displacement control |
| 11/22/1988 | US4785714 Positive-displacement fluid motor having self-stopping function, and method and control circuit for stopping the motor |
| 11/22/1988 | CA1245100A1 Rotary vane pump |
| 11/15/1988 | US4784576 Pump pressure sensor |
| 11/15/1988 | CA1244742A1 Pressure supply device for a hydraulic system |
| 11/10/1988 | DE3713799A1 Hydrostatic drive system |
| 11/10/1988 | DE3711049A1 Regulating device for at least two hydrostatic machines connected to a common operating-pressure line |
| 11/09/1988 | EP0289513A1 An arrangement for changing the pressure in pneumatic or hyd-raulic systems. |
| 11/09/1988 | CN88101277A Improved pump pressure sensor |
| 11/09/1988 | CN88100436A 动力输送 Power transmission |
| 11/08/1988 | US4783609 Rotation detecting apparatus for use with compressor |
| 11/08/1988 | CA1244317A1 Demand responsive flow regulator valve |
| 11/03/1988 | DE3811971A1 Adjustable oscillating-armature pump |
| 11/02/1988 | EP0288826A1 Hydraulic system with restricted inlet flow |
| 11/02/1988 | EP0288669A1 Fuel injection pump for a diesel engine |
| 11/02/1988 | EP0288658A1 Method and device for control of an air conditioning system for vehicles |
| 11/02/1988 | CN87102727A Computer controlled metering pump |
| 11/01/1988 | US4781538 Compressor with rotation detection device |
| 11/01/1988 | US4781536 Low-flow pump-off control |
| 11/01/1988 | US4781104 Rotary fluid energy translation device |
| 11/01/1988 | US4781064 Protection for hydraulic machines |
| 10/26/1988 | EP0287670A1 Driving control apparatus for hydraulic construction machines |
| 10/26/1988 | CN88101956A Automatic water supplying device and method for controlling same |
| 10/25/1988 | CA1243577A1 Device for the intermittent pulsatory application of liquid pharmaceuticals |
| 10/25/1988 | CA1243573A1 Control device |
| 10/20/1988 | DE3711037A1 Actuating device for a hydrostatic piston engine |
| 10/19/1988 | EP0286792A2 Driving device for a pump, especially a liquid-metering pump |
| 10/18/1988 | US4778451 Flow control system using boyle's law |
| 10/18/1988 | US4778352 Variable capacity vane compressor |
| 10/18/1988 | US4778351 Unloader, and in combination with an air compressor inlet housing |
| 10/18/1988 | US4778105 Control device |
| 10/18/1988 | US4777797 Hydraulic system with suction maintenance of its control pump |
| 10/13/1988 | DE3710261A1 Method of operating a compressor |
| 10/12/1988 | EP0286072A2 System supplying a hydraulic pressure variable with the operating condition of an automotive vehicle |
| 10/12/1988 | EP0187792B1 Arrangement for influencing the speed of a compressor of a refrigerating system |
| 10/12/1988 | CN87213672U Energy-saving device for a gas pump |
| 10/11/1988 | US4776773 Pilot control valve for controlling the pumping rate of an injection pump |
| 10/11/1988 | US4776770 Variable capacity vane compressor |
| 10/11/1988 | US4776766 Portable air pump assembly and detechable safety lamp for automotive vehicle |
| 10/06/1988 | DE3710248A1 Air suction intake for flanging onto a compressor |
| 10/06/1988 | DE3708940A1 Hydraulic drive for aerial lift devices (cherry pickers) or the like |
| 10/05/1988 | EP0285099A1 Air pressure circuit |
| 10/05/1988 | EP0284989A2 Regulator for at least two hydrostatic machines linked to a common pressure pipe |
| 10/05/1988 | EP0284988A2 Regulator for at least two hydrostatic machines linked to a common pressure pipe |
| 10/05/1988 | EP0284987A2 Regulator for at least two hydrostatic machines linked to a common pressure pipe |
| 10/04/1988 | US4775299 Variable clearance pocket piston positioning device |
| 10/04/1988 | US4775041 Compact friction clutch with actuated disengagement, suitable for vehicle compressors |
| 09/28/1988 | EP0284388A2 Clutch driven compressor assembly |
| 09/28/1988 | EP0283954A2 Compressor drive system and air conditioner using the same |
| 09/28/1988 | CN87204491U Reciprocating pump with automatic stroke regurating |
| 09/27/1988 | CA1242423A1 Variable displacement compressor |
| 09/21/1988 | EP0283348A1 Hydraulic pumps |
| 09/21/1988 | EP0283026A2 Method and device for starting an hydraulic membrane pump against a load |
| 09/21/1988 | CN88101279A Pump control system |
| 09/20/1988 | US4771801 Protective cover assembly with reverse buckling disc |
| 09/14/1988 | EP0282324A2 Improved pump pressure sensor |
| 09/14/1988 | EP0282323A2 Pump control system |
| 09/13/1988 | US4770632 Delivery system for dental treatment solution |
| 09/13/1988 | US4770081 Servomechanism with idle gear feedback |
| 09/08/1988 | DE3806002A1 Hydraulische leistungsantriebseinheit Hydraulic power drive unit |
| 09/07/1988 | WO1988006466A1 Calibrating plural pump fluid flow system |
| 09/07/1988 | EP0281294A2 Fluid delivery system with deficit flow compensation |
| 09/07/1988 | EP0280901A2 Plunger pump |
| 09/06/1988 | US4769001 Method and apparatus for calibrating plural pump fluid flow system |
| 09/06/1988 | US4768929 High pressure paint pump |
| 09/06/1988 | US4768421 Radial piston machine with shaft radial position stroke control |
| 08/31/1988 | EP0280532A2 Power transfer apparatus |
| 08/31/1988 | EP0279968A1 Reciprocating machine |
| 08/30/1988 | US4767279 Fluid composition and volumetric delivery control |
| 08/30/1988 | US4766926 Hydraulic unloading valves |
| 08/24/1988 | EP0171392A4 Load responsive system. |
| 08/24/1988 | CN87204211U Automatic control device for air compressor |
| 08/23/1988 | US4765150 Continuously variable capacity refrigeration system |
| 08/17/1988 | EP0278630A2 Continuously variable capacity refrigeration system |
| 08/17/1988 | CN87207125U Energy-saving control device for water pump |
| 08/16/1988 | US4763473 Arrangement for operating a diesel hydraulic drive |
| 08/16/1988 | US4763472 Power transfer unit |
| 08/16/1988 | CA1240523A1 Compressor inlet control device |
| 08/11/1988 | WO1988005869A1 Hydraulic apparatus for construction machines |
| 08/10/1988 | EP0277924A2 Improvement to the lubrication circuit of rotary vacuum pumps |
| 08/10/1988 | EP0277253A1 Hydraulic pump control unit |
| 08/10/1988 | EP0208692B1 Piston pump |
| 08/10/1988 | CN87106788A Driving and controlling device for hydraulic building machine |
| 07/27/1988 | EP0275969A2 Control device for a hydrostatic transmission for at least two users |