Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01L - Cyclically operating valves for machines or engines › F01L 23 - Valves controlled by impact of piston, e.g. in free-piston machines
Patents for F01L 23 - Valves controlled by impact of piston, e.g. in free-piston machines (250)
09/2014
09/11/2014US20140251256 Double-Reed Exhaust Valve Engine
08/2014
08/19/2014US8807012 Harmonic engine
05/2014
05/21/2014EP2732139A2 Heat recovery device
04/2014
04/17/2014WO2012069122A3 Heat recovery device
05/2013
05/08/2013DE102009024436B4 Wärmekraftmaschine Heat engine
02/2013
02/26/2013CA2636627C Hydraulic machine, in particular hydraulic motor, with a recipricating movement
11/2012
11/28/2012CN101371040B Hydraulic machine, in particular hydraulic motor, with a recipricating movement
07/2012
07/04/2012CN101191428B Fluid pressure operated piston engine apparatus and method
12/2011
12/22/2011WO2011157861A1 Pneumatic propulsion drive system
11/2011
11/09/2011EP1470335B1 Reciprocating fluid engine
03/2011
03/30/2011EP2300695A1 Energy conversion devices and systems including the same
12/2010
12/16/2010DE102009024436A1 Wärmekraftmaschine Heat engine
12/15/2010EP2261473A1 Heat engine
10/2009
10/22/2009WO2009129129A1 Energy conversion devices and systems including the same
10/07/2009EP2106495A2 Free-piston engine
02/2009
02/18/2009CN101371040A Hydraulic machine, in particular hydraulic motor, with a recipricating movement
12/2008
12/31/2008EP2009283A2 Hydraulically driven machine improvement
11/2008
11/06/2008WO2008065081A3 Free-piston engine
10/2008
10/15/2008EP1470335A4 Reciprocating fluid engine
10/07/2008CA2480394C Pneumatic motor
10/01/2008CN101278111A Heat engine
07/2008
07/23/2008EP1947331A1 Hydraulically Driven Machine Improvement
06/2008
06/05/2008WO2008065081A2 Free-piston engine
06/04/2008EP1927736A2 Fluid pressure operated piston engine apparatus and method
06/04/2008CN101191428A Fluid pressure operated piston engine apparatus and method
04/2008
04/16/2008EP1910655A1 Heat engine
07/2007
07/19/2007WO2007080249A1 Hydraulic machine, in particular hydraulic motor, with a recipricating movement
07/19/2007CA2636627A1 Hydraulic machine, in particular hydraulic motor, with a recipricating movement
07/18/2007EP1644672B1 Heat pump system
07/05/2007WO2007012938B1 Heat engine
02/2007
02/01/2007WO2007012938A1 Heat engine
02/01/2007CA2620684A1 Heat engine
08/2006
08/01/2006CA2493340A1 Control system for reciprocating drive
07/2006
07/05/2006CN1798945A Heat pump system
07/05/2006CN1262739C A pneumatic motor, a piston and a motor
03/2005
03/29/2005CA2107697C Fluid pressure operated piston engine assembly
03/08/2005US6862973 Pneumatic motor
01/2005
01/12/2005EP1495212A1 Pneumatic motor
12/2004
12/23/2004CA2526748A1 Heat pump system
10/2004
10/27/2004EP1470335A2 Reciprocating fluid engine
04/2004
04/01/2004US20040060429 Pneumatic motor
12/2003
12/03/2003CN1459548A 气动马达 Qidongmada
10/2003
10/09/2003WO2003083271A1 Pneumatic motor
10/02/2003US20030183071 Pneumatic motor
09/2003
09/30/2003US6626079 Pneumatic motor
05/2003
05/02/2003EP0723624B1 Reciprocable device
12/2002
12/31/2002US6499384 Piston apparatus for gas/liquid pipeline
05/2002
05/28/2002CA2360314A1 Piston apparatus for gas/liquid pipeline
05/14/2002US6386841 Pneumatically operated hydraulic pump
09/2001
09/05/2001EP1130216A2 Reciprocable device
07/2001
07/24/2001US6263777 Control system for reciprocating device
05/2001
05/22/2001US6234126 Engine valve control
02/2001
02/22/2001DE19938543A1 Valve unit for piston engine, inlet and exhaust valves or slots of which operate automatically
06/2000
06/29/2000DE19860466C1 Pneumatically operated hydraulic pump has cylinder housing, integral valve base, end cap and control housing all injection moulded from plastics and with slide shoe moved by piston to inject work air and expel exhaust air
10/1998
10/21/1998EP0587879B1 Pressure booster
06/1998
06/03/1998EP0729435A4 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
05/1998
05/13/1998EP0776424A4 Direct action fluid motor and injection pump
02/1998
02/12/1998DE19706818C1 Pneumatically actuated hydraulic pump
02/03/1998US5713521 Apparatus for intermittently atomizing a fluid
10/1997
10/16/1997WO1997038224A1 Modular air-driven pump
07/1997
07/31/1997DE19700412A1 Two stroke diesel engine
06/1997
06/04/1997EP0776424A1 Direct action fluid motor and injection pump
05/1997
05/06/1997US5626467 Modular pump
01/1997
01/08/1997CN1139976A Water powered pump drive unit
01/02/1997EP0751287A1 Device for intermittently spraying a liquid
12/1996
12/24/1996US5586578 Positive sequence fluid transfer assembly
11/1996
11/20/1996CN1136305A Fluid-driven apparatus for dispersing plural fluids in a precise proportion
10/1996
10/17/1996WO1996008130A3 Hydraulic or pneumatic piston and/or diaphragm pump
10/15/1996US5564913 Air pressure pump with reversible power cylinder
09/1996
09/10/1996US5554011 Medical fluid pump powered by a constant source of vacuum
09/04/1996EP0729435A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
08/1996
08/21/1996EP0727012A1 Offset reciprocable device
07/1996
07/31/1996EP0723624A1 Reciprocable device
05/1996
05/07/1996US5513963 Direct action fluid motor and injection pump
04/1996
04/09/1996US5505593 Reciprocable device with switching mechanism
03/1996
03/21/1996WO1996008130A2 Hydraulic or pneumatic piston and/or diaphragm pump
02/1996
02/22/1996WO1996005428A1 Direct action fluid motor and injection pump
12/1995
12/07/1995DE4427981C1 Hydraulic or pneumatic piston and/or membrane pump
11/1995
11/28/1995US5470209 Offset reciprocable device
06/1995
06/01/1995WO1995014634A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
06/01/1995CA2177142A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
04/1995
04/20/1995WO1995010695A1 Offset reciprocable device
04/20/1995WO1995010690A1 Reciprocable device
04/13/1995WO1995009986A1 Water powered pump drive unit
04/13/1995CA2173345A1 Water powered pump drive unit
03/1995
03/21/1995US5399071 Pressure booster
02/1995
02/14/1995US5388725 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
01/1995
01/25/1995EP0635096A1 Magnetically actuated fluid motor
09/1994
09/07/1994EP0587879A4 Pressure booster
07/1994
07/12/1994US5328339 Pump driven by air pressure
07/05/1994US5325762 Fluid pressure operated piston engine assembly
05/1994
05/04/1994EP0595116A1 Fluid pressure operated piston engine assembly
03/1994
03/23/1994EP0587879A1 Pressure booster
01/1994
01/25/1994US5280808 Air valve actuator for reciprocable machine
01/11/1994US5277099 Reduced icing low friction air valve
01/04/1994US5275014 Heat pump system
12/1993
12/26/1993CA2099053A1 Non-icing low friction air valve
10/1993
10/14/1993WO1993020350A1 Pressure booster
10/14/1993WO1993020338A1 Magnetically actuated fluid motor
10/14/1993CA2117526A1 Magnetically actuated fluid motor
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