Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02B - Internal-combustion piston engines; Combustion engines in general › F02B 71 - Free-piston engines; Engines without rotary main shaft
Patents for F02B 71 - Free-piston engines; Engines without rotary main shaft (1,404)
12/1990
12/13/1990WO1990015231A1 Starter motor for an engine with a free floating stepped piston
12/13/1990DE3918786A1 Anlasser fuer einen einen freifliegenden stufenkolben aufweisenden motor Starter for a free flying a step-piston engine having
10/1990
10/30/1990US4966000 Internal combustion engine with fluid drive output
09/1990
09/19/1990EP0273959B1 Energy production installation having an internal combustion engine and a turbine
07/1990
07/25/1990EP0378656A1 Pressure actuated movable head for a resonant reciprocating compressor balance chamber
06/1990
06/07/1990DE3843207A1 Internal combustion engine
05/1990
05/15/1990US4924956 Free-piston engine without compressor
05/15/1990US4924758 Compact fluid operated apparatus and method
05/08/1990US4922875 Power driven, positive displacement, combustion chamber for production of mixtures of steam and exhaust gases
05/01/1990US4920928 Apparatus generating pressurized gas from the combustion of fuel
04/1990
04/18/1990CN1041422A Reciprocating engine for directly outputting power of oil pressure
04/03/1990US4913331 Internal-combustion piston driving apparatus having a decompression channel
02/1990
02/22/1990WO1990001613A1 Compact fluid operated apparatus and method
01/1990
01/30/1990US4896632 Unsymmetrical free piston engine
01/09/1990US4891941 Free piston engine-pump propulsion system
12/1989
12/28/1989WO1989012749A1 Pressure actuated movable head for a resonant reciprocating compressor balance chamber
12/18/1989EP0336955A4 Heat engine.
11/1989
11/08/1989EP0340214A1 Bounce chambers for multi-cylinder linear engine compressors
10/1989
10/31/1989US4876991 Two stroke cycle engine
10/18/1989EP0336955A1 Heat engine
10/17/1989US4873822 Energy producing installation with internal combustion engine and turbine
10/05/1989WO1989009324A1 Reciprocating piston internal combustion engine with means for controlling the output
09/1989
09/27/1989EP0333960A1 Hydraulic stopping device for a thermo-hydraulic generator
09/06/1989CN2044008U Reciprocating hydraulic power direct take-off engine
07/1989
07/18/1989CA1257548A1 Cyclic speed control apparatus in variable stroke machines
06/1989
06/06/1989US4836757 Pressure actuated movable head for a resonant reciprocating compressor balance chamber
05/1989
05/23/1989US4831972 Internal combustion engine
05/02/1989US4825819 Hypergolic/catalytic actuator
04/1989
04/20/1989WO1989003475A1 Momentum engine
04/11/1989US4820480 Flexible conformable vanes made of carbonaceous materials
03/1989
03/28/1989US4815294 Gas turbine with external free-piston combustor
02/1989
02/14/1989US4803960 Internal combustion engine, particularly, a free-piston engine
01/1989
01/12/1989WO1989000245A1 Bounce chambers for multi-cylinder linear engine compressors
12/1988
12/20/1988US4791786 Free-piston motor with hydraulic or pneumatic energy transmission
11/1988
11/23/1988EP0291545A1 Repeating detonation device
10/1988
10/18/1988US4777801 Energy conversion apparatus
10/11/1988US4776166 Free piston power unit with relieved face bounce cylinders
10/06/1988DE3708972A1 Two-stroke diesel engines with opposing free pistons and buffer chambers
09/1988
09/07/1988CN88100961A Power aggregate
08/1988
08/31/1988EP0280200A2 Power aggregate
08/10/1988EP0277480A2 Manually operable internal-combustion-type impact tool
08/02/1988US4760701 External combustion rotary engine
07/1988
07/26/1988US4759318 Producing repeated detonations in a chamber
07/13/1988EP0273959A1 Energy production installation having an internal combustion engine and a turbine.
06/1988
06/16/1988DE3641691A1 Two-stroke diesel engines with contra-rotating free pistons and buffer chambers
06/14/1988US4750870 Pressure actuated movable head for a resonant reciprocating compressor balance chamber
06/07/1988US4748811 Supercharged diesel type apparatus for the generation of power
03/1988
03/29/1988US4733534 Internal combustion engine and output motion transducer
03/02/1988CN87105140A Free-piston motor with hydraulic or pneumatic energy transmission
02/1988
02/25/1988DE3727335A1 Four-stroke internal combustion engine with utilisation of exhaust gas
02/18/1988DE3627184A1 Two-stroke diesel engines with opposing free pistons and buffer chambers
02/09/1988CA1232455A1 Set of growing cells for the growing of plants
01/1988
01/27/1988EP0254353A1 Free-piston motor with hydraulic or pneumatic energy transmission
01/14/1988WO1988000279A1 Energy production installation consisting of an internal combustion engine and a turbine
12/1987
12/15/1987US4712379 Manual recycler for detonating impact tool
12/01/1987CA1229798A1 Cyclic dwell engine
11/1987
11/24/1987US4708099 Crankless reciprocating internal combustion engine
11/10/1987US4705460 Bounce chambers for multi-cylinder linear engine compressors
10/1987
10/27/1987US4702205 External combustion vane engine with conformable vanes
10/20/1987US4700667 Internal combustion engine
07/1987
07/07/1987US4678407 Multi-tandem free piston machine
07/02/1987DE3546315A1 Electrical generator driven by an internal combustion engine with flying piston
06/1987
06/16/1987US4672813 External combustion slidable vane motor with air cushions
06/04/1987DE3535049A1 Internal combustion engine with free floating pistons
06/03/1987EP0224142A2 Free piston internal-combustion engine
05/1987
05/19/1987US4665868 Differential piston and valving system for detonation device
05/19/1987US4665703 External combustion engine with air-supported free piston
05/14/1987DE3539069A1 Electrical generator driven by an internal-combustion engine having freely floating pistons
05/13/1987EP0221169A1 Internal combustion engine, particularly free piston engine
05/05/1987US4662177 Double free-piston external combustion engine
04/1987
04/15/1987EP0218505A1 Energy production installation with several diesel engine cylinders supercharged by reciprocating-piston compressors
03/1987
03/31/1987US4653274 Method of controlling a free piston external combustion engine
03/31/1987US4653273 Single free-piston external combustion engine with hydraulic piston detection
03/03/1987CA1218609A1 Externally excited resonant free piston stirling engine thermal amplifier system and method of operation and control therefor
01/1987
01/21/1987EP0208683A1 Hydraulic pump
01/08/1987DE3523703A1 Centrifugal drive
01/06/1987CA1216159A1 Gas turbine power production unit including a free piston gas generator
11/1986
11/06/1986WO1986006444A1 Internal combustion engine, particularly free piston engine
11/04/1986US4620836 Oil pump with oscillating piston
07/1986
07/29/1986CA1208494A1 Oscillating piston oil pump
07/15/1986US4599861 Internal combustion hydraulic engine
07/09/1986EP0187128A1 Internal combustion engine
06/1986
06/17/1986CA1206101A1 Diesel hammer capable of delivering uplift blows and method of using same
06/04/1986EP0183258A2 Free piston engine having a hydraulic power transmission mechanism
05/1986
05/20/1986US4589380 Cyclic dwell engine
04/1986
04/16/1986EP0093732B1 Device in a pressure system
04/08/1986US4580641 Method and apparatus for starting diesel type hammers
04/01/1986US4578899 Set of growing cells for the growing of plants
02/1986
02/04/1986US4567726 Externally excited resonant free piston Stirling engine thermal amplifier system and method of operation and control therefor
12/1985
12/31/1985US4561252 Free piston external combustion engines
10/1985
10/09/1985EP0156823A1 Externally excited resonant free piston stirling engine thermal amplifier system and method of operation and control therefor
09/1985
09/12/1985WO1985003979A1 Hydraulic pump
07/1985
07/30/1985US4532431 Method and apparatus for producing electrical energy from a cyclic combustion process utilizing coupled pistons which reciprocate in unison
07/23/1985US4530317 Variable displacement free piston engine
07/10/1985EP0148078A2 Starting device for an internal-combustion engine, especially for a free piston engine
04/1985
04/30/1985US4513697 Piston for internal combustion engine
04/02/1985US4507924 System for efficiently converting hydrocarbons into power
03/1985
03/14/1985WO1985001084A1 Externally excited resonant free piston stirling engine thermal amplifier system and method of operation and control therefor
02/1985
02/13/1985EP0132808A1 Cyclic dwell engine
01/1985
01/01/1985US4491095 Cyclic dwell engine
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