Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps
More topics under "F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps" (82,856)
F04C 11 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations (1,800)
F04C 13 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures (1,349)
F04C 14 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (3,663)
F04C 15 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups (7,179)
F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
F04C 19 - Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids (784)
F04C 2 - Rotary-piston machines or pumps (14,296)
F04C 21 - Oscillating-piston pumps specially adapted for elastic fluids (244)
F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (6,201)
F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852)
F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516)
F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928)
F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981)
F04C 3 - Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type (370)
F04C 5 - Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (932)
F04C 7 - Rotary-piston machines or pumps with fluid ring or the like (69)
F04C 9 - Oscillating-piston machines or pumps (230)
Patents for F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps (152)
11/1990
11/06/1990US4968218 Method of controlling the air output of a screw compressor
10/1990
10/30/1990CA1275641C Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an economizer inlet port
10/17/1990EP0392231A2 Controlling device for rotary piston compressor
08/1990
08/21/1990US4950137 Radial piston machine having pivoted control means engaging cam ring
02/1990
02/22/1990WO1990001638A1 Hose pump
01/1990
01/25/1990DE3824213A1 Rotary-piston machine with infinitely adjustable fluid throughput
09/1989
09/05/1989US4863357 Rotary positive displacement machine for a compressible working fluid
06/1989
06/29/1989WO1989005918A1 Valve arrangement for pump or compressor
02/1989
02/15/1989EP0302877A1 Rotary positive displacement machine for a compressible working fluid.
10/1988
10/25/1988US4780069 Directlly actuated vane-type pump
07/1988
07/19/1988US4758141 Vane pump with flexible tongue valve
11/1987
11/05/1987WO1987006654A1 Rotary positive displacement machine for a compressible working fluid
10/1987
10/06/1987US4697990 Variable capacity vane pump with means to vary the area of overlap
07/1987
07/21/1987CA1224450A1 Strainer device for rotary compressor
07/14/1987CA1224083A1 Reversible unidirectional flow rotary pump
07/07/1987US4678412 Adjusting apparatus for a vane pump or radial piston pump
07/07/1987US4678406 Variable volume ratio screw compressor with step control
12/1986
12/09/1986US4627802 Rotary vane compressor with inlet and outlet valves in the rotor
09/1986
09/02/1986US4609329 Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port
05/1986
05/13/1986US4588362 Reversible unidirectional flow rotary pump
03/1986
03/05/1986EP0172820A1 Vane compressor
02/1986
02/11/1986US4569636 Device for regulating the delivery of rotary compressors
01/1986
01/28/1986US4566870 Adjustable vane-type pump
12/1985
12/24/1985US4560329 Strainer device for rotary compressor
11/1985
11/19/1985US4553908 High pressure pump with a flow control valve
10/1985
10/29/1985US4549856 Compressor control system
08/1985
08/13/1985US4534719 Volumetric screw-and-pinion machine and a method for using the same
05/1985
05/29/1985EP0142606A2 Strainer device for rotary compressor
05/15/1985EP0141503A1 Reversible unidirectional flow rotary pump
05/07/1985US4515515 Compressor servomechanical regulator
03/1985
03/14/1985WO1985001086A1 Reversible unidirectional flow rotary pump
01/1985
01/09/1985EP0130662A2 Compressor control system
12/1984
12/11/1984US4487559 Hydraulic machine with retractable partitions and variable cubic capacity
10/1984
10/25/1984WO1984004137A1 Compressor
09/1984
09/04/1984CA1173805A1 Compressor
08/1984
08/21/1984CA1172905A1 Displacement variation of hydraulic machines with retractable partitions
05/1984
05/29/1984CA1168127A1 Control and relief valves
09/1983
09/13/1983US4403920 Device for regulating the output quantity of a compressed medium
06/1983
06/28/1983CA1148791A1 Combined lift and metering pump
06/14/1983US4388046 Rotary compressors
09/1982
09/22/1982EP0060639A1 Improvements in screw compressors
07/1982
07/13/1982US4338962 Control and relief valves
03/1981
03/10/1981US4255093 Combined lift and metering pump
03/03/1981US4253805 Rotary compressor
03/03/1981US4253803 Rotary positive displacement pump, especially gear pump
10/1980
10/14/1980CA1087455A1 Reversible gerotor pump
09/1980
09/16/1980US4222715 Device for delivery control in a rotary piston compressor
07/1980
07/15/1980US4212599 Method and device for regulating the output quantity of compressed medium of single and multi-stage screw and turbo compressor systems
03/1980
03/18/1980US4193746 Reversible gerotor pump
08/1979
08/14/1979US4164240 Device for low-loss variation of flow from a positive displacement pump by periodic interruption of the flow
02/1979
02/06/1979US4138204 Gear pump
01/1977
01/25/1977US4004864 Method for modifying a compressing apparatus unit
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