Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01L - Cyclically operating valves for machines or engines › F01L 21 - Use of working pistons or piston-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines
Patents for F01L 21 - Use of working pistons or piston-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines (198)
09/2014
09/09/2014US8826869 Intake system for a two-stroke internal combustion engine
07/2014
07/16/2014EP2753797A1 Air motor having a programmable logic controller interface and a method of retrofitting an air motor
07/15/2014US8776890 Systems and techniques to actuate isolation valves
04/2014
04/30/2014CN103764950A Air motor having a programmable logic controller interface and a method of retrofitting an air motor
04/01/2014US8683910 Hydraulic cylinder with piston valve assembly
03/2013
03/14/2013WO2013036240A1 Air motor having a programmable logic controller interface and a method of retrofitting an air motor
02/2013
02/14/2013WO2013022019A1 Free-piston engine
10/2012
10/31/2012EP2516805A2 Free piston engine
09/2012
09/12/2012CN102667060A Free piston engine
08/2012
08/16/2012DE102011004000A1 Zweitakt-Brennkraftmaschine mit optimierter Gasführung Two-stroke internal combustion engine with optimized gas management
05/2012
05/24/2012WO2012066702A1 Stratified scavenging two-stroke engine
01/2012
01/12/2012WO2012004184A1 Free piston device and method for charge exchange in a free piston engine
01/12/2012DE102010026779A1 Steam engine for use during distillation of sea water under vacuum in e.g. solar plant, has rod projected into aperture and supporting shoulder at end when upper end of rod passes through opening and extends into blind hole aperture
11/2011
11/10/2011WO2011077119A3 Free piston engine
10/2011
10/06/2011US20110239854 Vaporisation system
06/2011
06/30/2011WO2011077119A2 Free piston engine
03/2011
03/31/2011WO2003024667A3 Oilless air motor assembly for hydraulic pumps
02/2011
02/02/2011EP2279332A2 Internal combustion engine
09/2010
09/29/2010CN101205819B Hydraulic motor
09/09/2010DE102009010163A1 Synchronisiergetriebe für ein Wellenarray Synchronizing gear for a wave array
05/2010
05/26/2010CN101151438B Valve and auxiliary exhaust system for high efficiency steam engines and compressed gas motors
05/20/2010WO2010056211A2 System for encapsulation of semiconductor dies
12/2009
12/30/2009EP2138687A1 Drive system with a rotary energy-transmission element
10/2009
10/08/2009WO2009122087A2 Internal combustion engine
07/2009
07/30/2009DE102008009005B9 Vorrichtung zur Umwandlung von in einem Fluid enthaltener thermodynamischer Energie in mechanische Arbeit Apparatus for conversion of a fluid contained in thermodynamic energy into mechanical work
06/2009
06/04/2009US20090139394 Self starting vibrator
05/2009
05/20/2009CN100489274C Piston machine
04/2009
04/09/2009DE102008009005B3 Thermodynamic energy transformation device i.e. cogeneration unit, for power generation to e.g. operate electric motor of motor vehicle, has piston provided with piston heads, and skirts extending in direction of cylinder heads
10/2008
10/30/2008WO2008034544B1 Steam engine
10/09/2008US20080245220 Percussion Mechanism and at Least Percussively-Operated Hand Machine Tool With a Percussion Mechanism
10/07/2008CA2480394C Pneumatic motor
09/2008
09/04/2008WO2008034544A3 Steam engine
06/2008
06/26/2008US20080148932 Hydraulic Motor
06/25/2008EP1936134A2 Hydraulic motor
06/25/2008CN101205819A Hydraulic motor
03/2008
03/26/2008CN101151438A Valve and auxiliary exhaust system for high efficiency steam engines and compressed gas motors
12/2007
12/27/2007DE4425515B4 Doppelmembranpumpe mit einer zweistufigen Luftventilbetätigungseinrichtung Double diaphragm pump having a two-stage air valve actuator
12/05/2007EP1710394A4 Piston machine
10/2007
10/24/2007EP1846638A1 Valve and auxiliary exhaust system for high steam engines and compressed gas motors
02/2007
02/07/2007CN1910340A 活塞机械 Piston machinery
01/2007
01/16/2007US7162944 Continuous reciprocating linear motion device
10/2006
10/11/2006EP1710394A1 Piston machine
08/2006
08/17/2006WO2006085186A1 Valve and auxiliary exhaust system for high steam engines and compressed gas motors
07/2006
07/05/2006CN1262739C A pneumatic motor, a piston and a motor
01/2006
01/25/2006CN1724916A Wiring fixing tool
07/2005
07/28/2005WO2005068780A1 Piston machine
04/2005
04/07/2005US20050072800 Fluid powered proportioning pump and post-mix beverage dispenser system using same
03/2005
03/23/2005EP1517037A2 A fluid transfer device
03/08/2005US6862973 Pneumatic motor
01/2005
01/12/2005EP1495212A1 Pneumatic motor
06/2004
06/23/2004EP1058779A4 Free-piston internal-combustion engine
04/2004
04/01/2004US20040060429 Pneumatic motor
12/2003
12/03/2003CN1459548A 气动马达 Qidongmada
12/02/2003CA2061903C Compression spring fluid motor
11/2003
11/13/2003US20030209013 Piston air engine
10/2003
10/09/2003WO2003083271A1 Pneumatic motor
10/02/2003US20030183071 Pneumatic motor
09/2003
09/30/2003US6626079 Pneumatic motor
04/2003
04/08/2003CA2053765C Valve assembly
01/2003
01/14/2003US6505538 Multicylinder self-starting uniflow engine
01/2002
01/02/2002CN1077201C Gas driven mechanical oscillator and method
09/2001
09/19/2001CN1313454A Pneumatic mechanical vibrator and method thereof
09/12/2001CN1070988C Reciprocating piston motor operating on pressure medium
07/2001
07/25/2001EP1118754A2 A gas driven mechanical oscillator and method
06/2001
06/19/2001US6247332 Gas driven mechanical oscillator and method
02/2001
02/22/2001DE19938543A1 Valve unit for piston engine, inlet and exhaust valves or slots of which operate automatically
01/2001
01/09/2001US6170442 Free piston internal combustion engine
12/2000
12/13/2000EP1058779A1 Free-piston internal-combustion engine
10/2000
10/24/2000US6135068 Method for absorbing the vibration of a free-piston engine and vibration-absorbed free-piston engine
08/2000
08/02/2000CN1261944A Free piston IC engine
05/2000
05/30/2000US6067796 Gas driven mechanical oscillator and method
05/18/2000WO2000001933A3 Free piston internal combustion engine
04/2000
04/19/2000EP0993548A1 Free piston internal combustion engine
03/2000
03/14/2000US6035637 Free-piston internal combustion engine
01/2000
01/13/2000WO2000001933A2 Free piston internal combustion engine
01/11/2000US6012377 Shuttle valve of a reciprocating pneumatic motor for hydraulics
09/1999
09/15/1999EP0692072B1 Pressure medium driven device performing linear motion
09/02/1999WO1999043936A1 Free-piston internal-combustion engine
09/02/1999CA2320075A1 Free-piston internal-combustion engine
05/1999
05/19/1999CN2319573Y Hydraulic respiratory valve
02/1999
02/02/1999US5865040 Gas driven mechanical oscillator and method
01/1999
01/14/1999WO1999001651A1 Free piston internal combustion engine
07/1998
07/07/1998US5775273 Free piston internal combustion engine
06/1998
06/16/1998US5765374 Method for converting energy of an expanding gas into mechanical work
03/1998
03/26/1998DE19638083A1 Piston sensors for high pressure equipment
11/1997
11/20/1997WO1997043526A1 Internal combustion engine
11/04/1997US5683230 Pressure medium driven device performing linear motion
06/1997
06/11/1997EP0560956B1 Oscillating piston motor and installation with an oscillating piston motor
11/1996
11/20/1996EP0711378A4 A gas driven mechanical oscillator and method
10/1996
10/23/1996EP0596977B1 Diaphragm pump
09/1996
09/04/1996CN1130413A Gas driven mechanical oscillator and method
07/1996
07/30/1996US5540136 Reciprocating piston motor operating on pressure medium
05/1996
05/15/1996EP0711378A1 A gas driven mechanical oscillator and method
04/1996
04/11/1996WO1996010534A1 Double diaphragm pump
03/1996
03/13/1996CN1118405A Reciprocating piston motor operating on pressure medium
01/1996
01/17/1996EP0692072A1 Pressure medium driven device performing linear motion
12/1995
12/07/1995WO1995033125A1 A gas driven mechanical oscillator and method
12/07/1995CA2168337A1 A gas driven mechanical oscillator and method
11/1995
11/29/1995EP0683853A1 Vibration-absorbed free-piston engine
11/14/1995US5465646 Hydraulic motor
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