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)
12/2004
12/08/2004EP1483488A1 Device for transporting fluids
12/02/2004US20040237562 Heat pump system
12/01/2004EP1482162A1 Pulsed detonation engine
11/2004
11/30/2004US6823671 Free-piston unit for generating hydraulic energy
11/24/2004EP1479154A2 Resonant electrical generation system
11/04/2004WO2004093948A1 Portable combustion-powered device with priming combustion chamber and main combustion chamber
10/2004
10/28/2004WO2004092557A2 Internal explosion engine and generator using non-combustible gases
10/28/2004CA2522278A1 Internal explosion engine and generator using non-combustible gases
10/14/2004US20040200216 Internal explosion engine and generator using non-combustible gases
10/13/2004EP1185769B1 Cyclically operated fluid displacement machine
08/2004
08/12/2004WO2004046521A3 Two-stroke internal combustion engine with free opposed pistons
07/2004
07/08/2004DE10259775A1 Combustion force operated setting tool, e.g. for driving nails into a surface, has a fan for venting and cooling the combustion chamber, the operation of which is controlled in an ambient temperature dependent manner
07/06/2004US6759755 Energy converter
06/2004
06/23/2004EP1058779A4 Free-piston internal-combustion engine
06/17/2004US20040112308 Free piston vacuum producing apparatus
06/15/2004US6748907 Device including a combustion engine, a use of the device, and a vehicle
06/03/2004WO2004046521A2 Two-stroke internal combustion engine with free opposed pistons
06/03/2004DE10254037A1 Zweitakt-Freiflug-Gegenkolben- Brennkraftmaschine Two-stroke free-flight Gegenkolben- engine
06/02/2004EP1423611A1 Fully-controlled, free-piston engine
05/2004
05/27/2004WO2003075441A3 Resonant electrical generation system
05/25/2004US6739139 Heat pump system
04/2004
04/29/2004US20040079301 Microgenerator of electrical energy
04/15/2004DE10212551A1 Vorrichtung zum Fördern von Fluiden Apparatus for conveying fluids
04/14/2004EP1287233A4 Frre-piston internal combustion engine with valves located in pistons
04/14/2004EP1208288A4 Dc centering of free piston machines
04/08/2004US20040065277 Free piston engine
04/08/2004DE4010517B4 Gasbetriebenes Arbeitsgerät Gas powered implement
04/06/2004US6717297 Electrical machine
03/2004
03/25/2004WO2004025098A1 Energy converter
03/18/2004WO2004022946A1 Method for regulating the operation of a device for generating electric energy by means of a generator driven by a free-piston internal combustion engine
03/18/2004DE10242141A1 Freikolben-Verbrennungsvorrichtung mit elektrischem Lineartrieb Free-piston combustion device with electric linear drive
03/17/2004EP1398863A1 Free piston device with electrically driven linear actuator
03/17/2004EP1155226B1 Free piston internal combustion engine with piston head functioning as a bearing
03/16/2004US6707175 Linear generator with induction coil which moves with respect to fixed permanent magnets
03/11/2004DE10241101A1 Verfahren zur Regelung des Betriebs einer Einrichtung zur Erzeugung elektrischer Energie durch einen mittels einer Freikolbenbrennkraftmaschine angetriebenen Generator Method for regulating the operation of a device for generating electrical energy by a generator driven by means of a free piston internal combustion engine generator
03/11/2004DE10219549B4 Freikolben-Verbrennungsvorrichtung mit elektrischem Lineartrieb Free-piston combustion device with electric linear drive
03/02/2004US6700229 Electrical machine
02/2004
02/26/2004US20040035377 Two-stroke cycle, free piston, shaft power engine
02/24/2004US6694930 Piston assembly for use in a free piston internal combustion engine
02/04/2004EP1232335B1 Free-piston engine
12/2003
12/04/2003WO2003078809A3 Internal combustion engine
11/2003
11/25/2003US6652247 Fully-controlled, free-piston engine
11/25/2003US6651599 Free-piston engines
11/12/2003EP1361349A2 A microgenerator of electrical energy
11/06/2003WO2003091556A1 Free-piston device provided with an electric linear drive
11/06/2003WO2003091555A1 Power unit
10/2003
10/22/2003EP1354395A2 Power pack for cordless tools and electronics
10/22/2003EP1155228B1 Free piston internal combustion engine with piston head having a radially moveable cap
10/21/2003US6634325 Fuel injection system for linear engines
10/07/2003US6629513 Infinite loop engine
09/2003
09/30/2003US6626650 Cyclically operated fluid displacement machine
09/25/2003WO2003078835A1 Engine with pumping capability
09/25/2003WO2003078810A1 Engine with power generating capability
09/25/2003WO2003078809A2 Internal combustion engine
09/12/2003WO2003074851A1 Device for transporting fluids
09/11/2003WO2003075441A2 Resonant electrical generation system
09/03/2003CN1440489A Free piston motor
08/2003
08/21/2003WO2003069142A1 Free piston internal combustion engine
08/20/2003EP0985087B1 Hydraulic drive system with constant pressure in pressure conduit
08/14/2003WO2002029955A3 Power pack for cordless tools and electronics
07/2003
07/31/2003WO2003062616A1 Internal combustion engine
07/24/2003WO2003023225B1 Fully-controlled, free-piston engine
07/17/2003US20030131809 Resonant combustion chamber and recycler for linear motors
07/03/2003US20030124003 Fully-controlled, free-piston engine
06/2003
06/24/2003US6582204 Fully-controlled, free-piston engine
06/12/2003US20030106505 Linear generator with induction coil which moves with respect to fixed permanent magnets
06/05/2003US20030102179 Hydraulic drive system with constant pressure in pressure conduit
05/2003
05/29/2003US20030098587 Energy converter
05/20/2003US6564547 Device for digital hydraulic pressure transformation (DHPT)
05/07/2003CN1416501A 能量转换器 Energy converters
04/2003
04/29/2003US6554585 Power generating assembly capable of dual-functionality
04/23/2003EP1093544B1 Fast working hydraulic valve
04/10/2003WO2003029626A1 Piston assembly for use in a free piston internal combustion engine
04/10/2003US20030066499 Piston assembly for use in a free piston internal combustion engine
04/02/2003EP1297607A2 Miniature generator
04/01/2003US6541875 Free piston engine with electrical power output
03/2003
03/25/2003US6536326 Control system and method for preventing destructive collisions in free piston machines
03/20/2003WO2003023225A1 Fully-controlled, free-piston engine
03/20/2003US20030051682 Free-piston unit for generating hydraulic energy
03/18/2003US6532916 Opposed piston linearly oscillating power unit
03/13/2003US20030048019 Electrical machine
03/13/2003US20030048018 Electrical machine
03/06/2003US20030044293 Fully-controlled, free-piston engine
03/05/2003EP1288464A2 Piston assembly for free piston internal combustion engine
03/05/2003EP1287603A1 Linear generator with induction coil which moves with respect to fixed permanent magnets
03/05/2003EP1287233A1 Frre-piston internal combustion engine with valves located in pistons
02/2003
02/26/2003CN1102211C Rodless power hydraulic cylinder
02/12/2003EP1282766A1 Free piston motor
02/06/2003US20030024492 Device including a combustion engine, a use of the device, and a vehicle
01/2003
01/29/2003CN1100192C Hydraulic cylinder
01/02/2003EP1269611A1 An electrical machine
01/02/2003EP1269610A1 An electrical machine
12/2002
12/26/2002US20020195070 Intermittent linear motor
12/19/2002US20020189433 Control system and method for preventing destructive collisions in free piston machines
12/10/2002US6491002 Intermittent linear motor
11/2002
11/28/2002US20020175520 Resonant electrical generation system
11/26/2002US6484674 Free-piston internal combustion engine
11/21/2002WO2001023721A9 Free-piston internal combustion engine
11/21/2002DE10124056A1 Internal combustion engine without crankshaft, consists of casing, turbine-flywheel, pushrod, springs, pistons and cylinders
11/13/2002EP1255920A2 A device including a combustion engine, a use of the device, and a vehicle
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