Patents
Patents for F01B 11 - Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type (808)
06/1989
06/06/1989US4836757 Pressure actuated movable head for a resonant reciprocating compressor balance chamber
05/1989
05/18/1989DE3737184A1 Double-piston internal combustion engine with a central control groove or separate rinsing and charging
05/09/1989US4827832 Valve system for a reciprocating device
04/1989
04/18/1989US4821813 Percussion drilling apparatus
03/1989
03/28/1989US4815291 Method and arrangement in heat engines
03/23/1989WO1989002514A1 Pneumatic linear vibrator
02/1989
02/02/1989DE3724110A1 Einweg-airless-spruehdose mit druckgasantrieb Disposable airless spray with compressed gas driving
01/1989
01/26/1989WO1989000461A1 Disposable airless sprayer
01/24/1989US4799421 Hydrodynamic spiral-grooved journal bearing for electromagnetically rotated and reciprocated compressor piston
01/17/1989US4798129 Cam and lock vacuum booster mount with inverse arc securing tab arm
01/17/1989US4798128 Double acting cylinder unit
01/10/1989US4796428 Double-acting forging hammer and method
12/1988
12/15/1988WO1988009872A1 Mixed-phase motor
11/1988
11/15/1988US4783961 Natural gas pressure differential energy recovery system
11/08/1988US4782796 Unsymmetrical free piston engine
10/1988
10/18/1988US4777801 Energy conversion apparatus
10/11/1988US4776171 Self-contained renewable energy system
08/1988
08/25/1988DE3703529A1 Reciprocating piston engine
08/10/1988EP0277382A1 Motor-compressor unit
07/1988
07/28/1988DE3701168A1 Piston machine
07/05/1988US4754612 Method for optimizing the mechanical output of a fluid pressure free piston engine
05/1988
05/24/1988US4745847 Helical splined rotary actuator
05/18/1988EP0128199B1 Refrigeration system with clearance seals
05/03/1988US4741673 Apparatus for and a method of transferring liquid
04/1988
04/20/1988CN85102322B Slide-like driving means
02/1988
02/11/1988DE3624957A1 Hydraulic free-piston internal combustion engine
02/04/1988DE3625051A1 Piston supercharger which can be driven by the exhaust gas pulses of an internal combustion engine
01/1988
01/28/1988WO1988000645A1 Process for actuating a valve in the exhaust gas outlet of a piston charger driven by exhaust pulses from an internal combustion engine and valve for carrying out the process
01/27/1988EP0254292A1 Piston compressor driven by exhaust pulses of an internal combustion engine
12/1987
12/23/1987DE3620682A1 Control of oscillating free pistons for vehicle engines
12/01/1987CA1229798A1 Cyclic dwell engine
11/1987
11/26/1987DE3617262A1 Hydrostatic drive
11/25/1987EP0246227A1 Cyclic speed control apparatus in variable stroke machines.
11/11/1987EP0132438B1 Double-acting forging hammer and method
10/1987
10/22/1987DE3623121A1 Crank gear in-line design
10/13/1987US4699044 Fluid cylinder device with precision stroke adjustment
07/1987
07/07/1987US4678407 Multi-tandem free piston machine
07/02/1987DE3546373A1 Hydrodynamic drive by means of a two-stroke diesel engine with opposed free pistons and a hydraulic pump
06/1987
06/23/1987US4674397 Fluid-operated reciprocating motor
05/1987
05/27/1987EP0223288A1 Arrangement comprising a hydrodynamically journalled reciprocable and rotatable piston
04/1987
04/23/1987WO1987002423A1 Cyclic speed control apparatus in variable stroke machines
03/1987
03/17/1987CA1219137A1 Refrigeration system with clearance seals
03/05/1987DE3530131A1 Two-stroke internal combustion engine
03/04/1987EP0113740B1 Start-up and control method and apparatus for resonant free piston stirling engine
02/1987
02/26/1987DE3519140A1 Assembly with fluid through-flow, with pistons reciprocating in cylinders, such as pumps, motors or internal combustion engines
01/1987
01/29/1987DE3628709A1 Crank mechanism with free piston
01/08/1987DE3523785A1 Device for the control and for the drive or output of linear and free piston engines
12/1986
12/10/1986EP0204011A1 Aggregate with through flow by a fluid
11/1986
11/12/1986CN85102322A Slide-like drive means
11/06/1986WO1986006439A1 Method and arrangement in heat engines
09/1986
09/09/1986US4610192 Reciprocable device
08/1986
08/12/1986CA1209348A1 Start-up and control method and apparatus for resonant free-piston stirling engine
06/1986
06/04/1986EP0183258A2 Free piston engine having a hydraulic power transmission mechanism
04/1986
04/22/1986US4583364 Piston centering method and apparatus for free-piston Stirling engines
06/1985
06/12/1985EP0143779A1 Hydraulically driven compressor/pump apparatus for resonant free piston stirling engines
06/11/1985US4522111 Double-acting, fluid actuated positioning actuator
06/06/1985WO1985002444A1 Pneumatic rotor for paint spraying apparatus, grease pumps and the like
06/05/1985EP0143428A2 Air motor for paint spraying devices, lubricant pumps and the like
05/1985
05/23/1985WO1985002225A1 Apparatus for and a method of transferring liquid
05/22/1985EP0142362A1 Apparatus for and a method of transferring liquid
03/1985
03/27/1985EP0027123B1 Combustion piston engine provided with power control means
02/1985
02/13/1985EP0132808A1 Cyclic dwell engine
01/1985
01/08/1985US4492147 Reciprocatory air motor with cushioning pistons
01/01/1985US4491095 Cyclic dwell engine
12/1984
12/20/1984WO1984004946A1 Hydraulically driven compressor/pump apparatus for resonant free piston stirling engines
12/19/1984EP0128199A1 Refrigeration system with clearance seals.
12/18/1984US4488853 Fluid pressure ratio transformer system
11/1984
11/27/1984US4484638 Liquid inertia tool
11/07/1984EP0113740A4 Start-up and control method and apparatus for resonant free piston stirling engine.
11/06/1984US4480611 Internal combustion engine using several kinds of fuels, with electronically adjustable intake and exhaust valves and injection device
10/1984
10/09/1984US4475346 Refrigeration system with linear motor trimming of displacer movement
08/1984
08/28/1984US4467699 Pneumatic motor
08/02/1984WO1984002953A1 Double-acting forging hammer and method
07/1984
07/25/1984EP0113740A1 Start-up and control method and apparatus for resonant free piston stirling engine.
07/10/1984US4458581 In a variable volume pump
06/1984
06/21/1984WO1984002388A1 Refrigeration system with clearance seals
05/1984
05/30/1984EP0109746A1 Liquid dispensing system and automatic selector therefor
03/1984
03/06/1984US4434617 Start-up and control method and apparatus for resonant free piston Stirling engine
02/1984
02/16/1984WO1984000580A1 Start-up and control method and apparatus for resonant free piston stirling engine
12/1983
12/21/1983EP0029826B1 Pneumatic engine with piston slide
12/20/1983US4420945 Method and apparatus for extracting energy from a pressured gas
12/20/1983US4420944 Air cooling system
11/1983
11/23/1983EP0094862A1 Pneumatic driving device for a windscreen wiper and combined wiper-washer installation for headlights using such a device
11/15/1983US4415313 Hydraulic generator with free-piston engine
11/01/1983US4412552 Method of controlling inlet valves of compression reactor and device for effecting same
11/01/1983US4412476 Tandem machine with opposed free pistons
10/1983
10/04/1983US4407240 Opposed piston internal combustion engine with special scavenging means
09/1983
09/27/1983US4406215 Drive cylinder
09/20/1983US4404800 Gas energized engine system
09/06/1983US4403153 Free-piston electric current generator
09/06/1983US4402255 Compressed-air vibrator with reciprocating piston
08/1983
08/30/1983US4401415 Hydraulic pressure transformer
08/16/1983CA1152004A1 Internal combustion engine
08/09/1983US4397220 Air cushion for pneumatic impact tool
08/09/1983CA1151679A1 Device for breaking a hard material
04/1983
04/26/1983CA1145264A1 Thermal impulse generator
03/1983
03/29/1983US4377991 Internal combustion apparatus
02/1983
02/16/1983EP0072363A2 Steam-powered engine
02/09/1983EP0070866A1 Fluid-pressure operated motors
02/01/1983US4370916 Percussive device
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