Patents
Sitemap › F03 - Machines or engines for liquids; Wind, spring, or weight motors; Producing mechanical power or a reactive propulsive thrust, not otherwise provided for › F03C - Positive-displacement engines driven by liquids › F03C 1 - Reciprocating-piston liquid engines
Patents for F03C 1 - Reciprocating-piston liquid engines (2,799)
10/1984
10/24/1984EP0122352A1 Capacity control means for hydraulic positive-displacement machines
10/09/1984US4475870 Hydraulic arrangement
09/1984
09/26/1984EP0119884A1 Processus and circuit for controlling a motor with a safety brake
09/25/1984US4473751 Non-conventional reciprocating hydraulic-electric power source
09/04/1984US4469012 Pressurized fluid mechanism comprising reaction rollers mounted on pistons
08/1984
08/29/1984EP0117152A1 Hydraulic motor
08/29/1984EP0116832A1 Method and apparatus for reducing operating noise in axial piston pumps and motors
08/22/1984EP0116217A1 Two-speed gerotor motor
08/21/1984US4466783 Three vane, two lobe fluid motor
08/21/1984US4466338 Oblique-shaft axial piston machine having a follower plate for the cylinder drum
08/21/1984CA1172905A1 Displacement variation of hydraulic machines with retractable partitions
08/07/1984US4463838 Vibration jacks
07/1984
07/17/1984US4459718 Side view mirror mechanism
07/17/1984CA1170906A1 Hydraulic motor
07/10/1984US4458582 Automatic rigging arrangement for actuation systems
07/10/1984US4458579 Hydraulically driven reciprocating motor
07/03/1984US4457677 High torque, low speed hydraulic motor
06/1984
06/19/1984US4455028 Sealing device with radially slitted metal washers for hydraulic piston mechanisms
05/1984
05/01/1984US4445423 Hydraulic motor
04/1984
04/24/1984US4444093 Slant plate type hydraulic device
04/03/1984CA1164769A1 Hydraulic cylinder and piston with automatic reciprocation valve
04/03/1984CA1164725A1 Displacement control for a hydraulic pump or motor with failure override
03/1984
03/20/1984CA1163861A1 High-torque hydraulic motor
03/14/1984EP0102915A2 Radial-piston hydraulic engine
03/07/1984EP0102311A2 Fluid motor
02/1984
02/21/1984US4432122 Method for producing a connecting rod for a radial piston motor
02/01/1984EP0099372A1 Hydraulic radial piston machines.
01/1984
01/17/1984US4426195 Adjustable axial flow piston machines
12/1983
12/08/1983WO1983004284A1 Rotary hydrostatic radial piston machines
11/1983
11/08/1983US4413548 Hydraulic motor with adjustable flow volume
10/1983
10/13/1983WO1983003445A1 Electro-hydraulic control system for a power drive unit
10/12/1983EP0090953A2 Hydraulic axial-piston machine
10/12/1983EP0090952A2 Hydraulic axial-piston machine
10/11/1983CA1155004A1 Porting faces of hydraulic pumps and motors
10/05/1983EP0090206A2 Hydraulic axial-piston machine
09/1983
09/20/1983US4404896 Pressurized fluid engine equipped with means for selecting its speed of rotation
09/20/1983US4404895 Fluid pressure unit with hydrostatic torque transmission by roller pistons
09/20/1983CA1153930A1 Radial piston fluid translating device with power conserving scavenging means
08/1983
08/23/1983US4400144 Air compressor
08/17/1983EP0085906A2 Operation system for hoisting device
08/16/1983US4398450 Hydraulic motor
07/1983
07/21/1983WO1983002482A1 Hydraulic radial piston machines
07/05/1983US4391571 Pumping apparatus for pumping liquids such as slurrys
05/1983
05/17/1983US4383475 Hydraulic cylinder and piston with automatic reciprocation valve
05/11/1983WO1983001649A1 Fluid motors
05/11/1983EP0078513A1 Rotary fluid energy translating device
05/03/1983US4381702 Displacement control for a hydraulic pump or motor with failure override
05/03/1983US4381701 Servomotor featuring a servovalve controlling a hydraulic drum motor
05/03/1983US4381700 Stepless infinite variable speed motor
02/1983
02/15/1983US4373425 Hydraulic engine
01/1983
01/25/1983CA1139992A1 Radial cylinder hydraulic motor
01/12/1983EP0069462A2 Hydraulic pump or motor
01/05/1983EP0068252A2 Fluid-pressure operated linear-drive mechanism
12/1982
12/07/1982US4362481 Rotary vane machine with rings radially constraining the vanes
12/07/1982CA1136957A1 Hydraulic engine
11/1982
11/17/1982EP0064563A1 Assembly of piston shoes in radial-piston machines
11/09/1982US4358073 Fluid motor with moveable members workable independently of its drive means
09/1982
09/21/1982US4350079 Fluid motor
08/1982
08/31/1982US4346645 Hydraulic axial piston engine
08/03/1982US4342255 Oscillator actuated hydraulic impulse device
06/1982
06/15/1982CA1125593A1 Speed responsive motor shutoff mechanism for fluid operated tool
06/09/1982EP0053544A1 Hydraulic motor and hydrostatic power transmission employing this motor
05/1982
05/25/1982US4331064 Pressurized fluid mechanism such as a hydraulic engine
05/18/1982CA1123663A1 Radial piston hydraulic pump or motor with stabilized pintle shaft
04/1982
04/27/1982US4326450 Fluid mechanism with axially movable valve-seat
03/1982
03/23/1982US4320692 Radial cylinder hydraulic motor
03/10/1982EP0047187A2 A variable torque-variable speed drive device
03/09/1982US4318336 Hydraulic motor
03/03/1982EP0046691A2 Improvements in and relating to hydraulic motors
02/1982
02/23/1982CA1118641A1 Displacement control valve for a radial piston device
10/1981
10/28/1981EP0038372A1 Hydraulic motor
08/1981
08/11/1981US4282937 Hammer
08/04/1981CA1106261A1 Hydraulic oscillator
07/1981
07/28/1981US4280396 Hydraulic oscillator
06/1981
06/23/1981US4274814 Rotative machine for fluids
06/09/1981US4271725 Hydraulic motor unit
06/02/1981US4270731 Valve with non-binding spool
06/02/1981US4270439 Fluid rotary machine
06/02/1981CA1102179A1 Rotative machine for fluids
05/1981
05/05/1981US4265165 Radial piston fluid translating device with power conserving scavenging means
04/1981
04/07/1981US4259894 Hydrostatic motor
03/1981
03/17/1981US4256018 Radial piston fluid engine
03/11/1981EP0024557A1 Radial piston fluid translating device with power conserving scavenging means
03/05/1981WO1981000597A1 Radial piston fluid translating device with power conserving scavenging means
03/03/1981US4253381 Hydraulic machine of the multicylinder drum type
02/1981
02/24/1981US4252051 Apparatus for supporting piston shoes of axial piston type hydraulic pump/motor
02/05/1981WO1981000287A1 Displacement control valving for a radial piston device
01/1981
01/27/1981US4247268 Rotary vane machine with radial vane constraining members
01/21/1981EP0022563A1 Displacement control valve for a radial piston device
01/13/1981US4244274 Cylinder control device of hydraulic cylinder apparatus
01/07/1981EP0022021A1 A hydraulic motor having a reciprocating piston
01/07/1981EP0020811A1 Positive control for hydrostatic engines, particularly radial-piston engines
01/07/1981EP0020436A1 Pumping apparatus for pumping liquids such as slurrys
12/1980
12/23/1980US4240326 Hydraulic vibration exciter and method of cooling thereof
12/09/1980US4237774 Displacement control valving for a radial piston device
11/1980
11/11/1980US4233000 Variable ratio intensifier
10/1980
10/14/1980US4227442 Cylinder control device of hydraulic cylinder apparatus
10/07/1980US4226573 Hydraulically-operated machines
09/1980
09/23/1980US4223595 Device for coupling the pistons to the rotor in a radial-piston hydraulic motor
09/23/1980US4223594 Hydraulic motor
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