| Patents for F02B 71 - Free-piston engines; Engines without rotary main shaft (1,404) |
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| 06/20/2007 | CN1322230C Fully-controlled, free-piston engine |
| 06/13/2007 | CN1978877A Free-piston generator |
| 06/13/2007 | CN1978876A Air preheating micro-free-piston engine for common use of intake pipe and exhaust pipe |
| 06/06/2007 | CN1975128A Fully-controlled, free-piston engine |
| 06/05/2007 | US7225768 Combustion type power tool having buffer piece |
| 05/31/2007 | WO2007059565A1 Four-stroke free piston engine |
| 05/24/2007 | WO2007058712A1 Fuel supply and combustion chamber systems for fastener-driving tools |
| 05/24/2007 | CA2629698A1 Fuel supply and combustion chamber systems for fastener-driving tools |
| 05/10/2007 | US20070101954 Combustion-engined setting tool |
| 05/09/2007 | EP1781948A1 Control of reciprocating linear machines |
| 05/03/2007 | US20070095073 Linear compressor controller |
| 05/02/2007 | CN1957179A Opposed piston opposed cylinder free piston engine |
| 05/02/2007 | CN1957163A Sodium cooled pistons for a free piston engine |
| 05/01/2007 | US7210431 Combustion-type power tool with exhaust gas flow regulating rib |
| 05/01/2007 | US7210430 Rapid response power conversion device |
| 04/25/2007 | CN1952363A 双活塞液压发动机 Dual-piston hydraulic motors |
| 04/24/2007 | US7207299 Internal combustion engine |
| 04/24/2007 | US7207188 Heat pump system |
| 04/19/2007 | DE102005016469B4 Freikolbenmotor mit hydrostatischer und elektrischer Leistungsabgabe Free-piston engine with hydrostatic and electrical power output |
| 04/19/2007 | DE102005006340A1 Free piston-energy generator for vehicle drive, has cylinder rinsed with air in scavenging air-intermediate accumulator and made of thermally stable ceramic, where ceramic-foam is provided in cavities of right and left free pistons |
| 04/18/2007 | CN1948728A Internal combustion engine |
| 04/12/2007 | WO2007040599A1 Linear fluid engine |
| 04/12/2007 | US20070079777 Powered devices |
| 04/11/2007 | EP1772234A1 Combustion-driven fastening tool |
| 04/05/2007 | US20070074684 Combustion-engined setting tool |
| 04/04/2007 | CN1308119C Valve mechanism for elongating combustion chambers |
| 03/29/2007 | WO2007035102A1 Free piston linear generator |
| 03/29/2007 | WO2007035084A1 Free piston linear generator |
| 03/14/2007 | EP1761694A1 A sodium cooled piston for a free piston engine |
| 03/13/2007 | US7188590 Combustion-engined setting tool |
| 02/20/2007 | US7178487 Combustion-engined setting tool |
| 02/14/2007 | EP1751428A1 Opposed piston opposed cylinder free piston engine |
| 01/18/2007 | WO2007006602A1 Ammonia generator, vehicle and method for generating ammonia |
| 01/18/2007 | US20070012267 Combustion powered fastner-driving tool with interconnected chambers |
| 01/10/2007 | EP1740804A1 Method and system for controlling a free-piston energy converter |
| 01/04/2007 | US20070000458 Combustion-operated setting tool |
| 01/03/2007 | CN1888402A Free-piston type internal combustion engine power generating system |
| 12/28/2006 | WO2006107866A3 Accelerated permanent magnet generator |
| 11/28/2006 | US7140331 Beam system membrane suspension for a motor mount |
| 11/23/2006 | US20060260568 Thermal regulation control for combustion nailer |
| 11/22/2006 | CN1867759A Hybrid two cycle engine, compressor and pump, and method of operation |
| 11/09/2006 | WO2006060695A3 Dynamic mass transfer rapid response power conversion |
| 11/09/2006 | US20060249107 Combustion type power tool having motor suspension arrangement |
| 11/09/2006 | US20060249106 Beam system membrane suspension for a motor mount |
| 11/07/2006 | US7133325 Apparatus and method for generating electrical power in a borehole |
| 11/07/2006 | US7131404 Combustion-type power tool having gas canister cooling arrangement |
| 11/06/2006 | WO2008004856A1 Device and method for converting energy |
| 11/06/2006 | CA2629242A1 Device and method for converting energy |
| 10/31/2006 | US7128030 Combustion-engined setting tool |
| 10/25/2006 | EP1715184A1 Linear compressor controller |
| 10/12/2006 | US20060225676 Combustion type power tool having fin for effectively cooling cylinder |
| 10/12/2006 | US20060225675 Combustion type power tool having fin in low turbulent combustion region within combustion chamber |
| 10/12/2006 | US20060225674 Combustion type power tool facilitating cleaning to internal cleaning target |
| 10/12/2006 | DE102005016469A1 Double-acting, two-stroke free piston engine for hydrostatic and electrical power output uses two pump pistons, connected to hydraulic cylinder heads or barrels joined by counteracting piston, as linear electricity generator |
| 10/03/2006 | US7116004 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 |
| 09/28/2006 | WO2006101789A1 Venting check valve for combustion nailer |
| 09/28/2006 | US20060213466 Internal combustion engine |
| 09/21/2006 | WO2006097968A1 A power system for producing electricity from an internal combustion engine by means of a linear generator |
| 09/21/2006 | DE102004062440B4 Freikolbenvorrichtung und Verfahren zum Betreiben einer Freikolbenvorrichtung Free-piston device and method of operating a free-piston device |
| 09/19/2006 | US7107944 Beam system membrane suspension for a motor mount |
| 09/14/2006 | US20060201456 Internal combustion engine |
| 09/07/2006 | US20060196455 Linear fluid engine |
| 09/07/2006 | US20060196454 Linear fluid engine |
| 09/06/2006 | EP1563172B1 Two-stroke internal combustion engine with free opposed pistons |
| 09/05/2006 | US7100546 Crankshaftless internal combustion engine |
| 08/31/2006 | WO2006091682A2 Variable stroke premixed charge compression ignition engine |
| 08/31/2006 | US20060191501 Flywheel vane combustion engine |
| 08/29/2006 | US7096832 Combustion—powered working tool, in particular a setting tool for fastening elements |
| 08/24/2006 | US20060185631 Four-cylinder, four-cycle, free piston, premixed charge compression ignition, internal combustion reciprocating piston engine with a variable piston stroke |
| 08/24/2006 | US20060185630 Combustion-type power tool having switch protection arrangement |
| 08/24/2006 | US20060185629 Combustion-type power tool having ignition proof arrangement |
| 08/16/2006 | EP1633955A4 Internal explosion engine and generator using non-combustible gases |
| 08/01/2006 | US7082909 Free-piston device with electric linear drive |
| 07/18/2006 | US7077080 Hydraulic synchronizing coupler for a free piston engine |
| 07/18/2006 | US7076950 Internal explosion engine and generator using non-combustible gases |
| 07/11/2006 | US7073468 Combustion type power tool having motor suspension arrangement |
| 07/06/2006 | WO2006069731A1 Axially driven piston/cylinder unit |
| 07/06/2006 | US20060144889 Combustion-type power tool with exhaust gas flow regulating rib |
| 07/05/2006 | CN1798945A Heat pump system |
| 06/29/2006 | DE102004062440A1 Free-piston device for e.g. motor vehicles has piston receiving element, in which piston device moves linearly whereby pressure sensor is arranged at piston receiving element |
| 06/20/2006 | US7063053 Combustion type power tool having fin for effectively cooling cylinder |
| 06/15/2006 | US20060124083 Control device for free piston engine and method for the same |
| 06/14/2006 | CN1788141A Internal explosion engine and generator using non-combustible gases |
| 06/08/2006 | US20060117783 Heat pump system |
| 06/08/2006 | DE102005041010A1 Vorrichtung zur Bestimmung der Position eines Freikolbens und Vorrichtung zur Kontrolle der Position eines Freikolbens Apparatus for determining the position of a free piston and device for controlling the position of a free piston |
| 05/30/2006 | US7051686 Variable volume valve for a combustion powered tool |
| 05/23/2006 | US7047916 Two-stroke internal combustion engine with free opposed pistons |
| 05/18/2006 | US20060102111 Combustion-type power tool |
| 05/18/2006 | US20060101816 Internal explosion engine and generator using non-combustible gases |
| 05/09/2006 | US7040261 Temperature-controlled fan delayed shut-off |
| 04/27/2006 | DE202005019063U1 IC motor, with a combined free piston and reciprocating piston action, has the pistons in a coaxial array within a common housing |
| 04/25/2006 | US7032548 Piston guides for a free piston engine |
| 04/13/2006 | US20060075978 Combustion-engined setting tool |
| 04/12/2006 | EP1644672A2 Heat pump system |
| 04/06/2006 | US20060070590 Rapid response power conversion device |
| 04/04/2006 | US7021251 Combustion type power tool having avoiding unit for avoiding overheating to mechanical components in the tool |
| 03/30/2006 | US20060065228 Compliant walled combustion devices II |
| 03/30/2006 | US20060065219 Combustion-engined setting tool |
| 03/23/2006 | US20060059907 Crankshaftless internal combustion engine |
| 03/16/2006 | US20060054116 Combustion-engined setting tool |