Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01L - Cyclically operating valves for machines or engines › F01L 11 - Valve arrangements in working piston or piston-rod
Patents for F01L 11 - Valve arrangements in working piston or piston-rod (183)
09/2003
09/02/2003US6612273 Dual-piston compression chamber for two-cycle engines
04/2003
04/10/2003DE20119253U1 Reciprocating piston internal combustion engine has inlet valve installed in piston face pointing towards combustion chamber, and cylinder wall has with inlets slots through which inlet valve communicates with fresh gas feed
03/2003
03/05/2003EP1287233A1 Frre-piston internal combustion engine with valves located in pistons
10/2002
10/02/2002EP1245800A1 Internal combustion engine arrangement allowing simultaneous intake and outlet from fresh and burned gases
09/2002
09/26/2002US20020134324 Free-piston engines
06/2002
06/18/2002US6405691 Piston valve for two-stroke engine
12/2001
12/13/2001WO2001094752A1 Frre-piston internal combustion engine with valves located in pistons
11/2001
11/29/2001DE10025873A1 Piston engine with variable chamber volume provides opening in piston to seat traveling disk valve at chamber-facing passage edge plus piston sleeve interior for clear endstopped valve shaft travel.
12/2000
12/21/2000WO2000077357A1 Internal combustion engine
12/14/2000DE19925445A1 Reciprocating piston internal combustion engine has inlet valve installed in piston, and stop is provided to open valve when coming into contact with valve stem when piston is in bottom dead centre position
08/2000
08/31/2000DE19906456A1 Two-stroke internal combustion engine, with valve drive in cylinder head and valve in piston head
08/17/2000DE19904003A1 Two-stroke internal combustion engine, arranged as flat and standing engine, with only one crankshaft
08/17/2000DE19904002A1 Two-stroke internal combustion engine, with closed crankcase and hollow pistons forming air charge precompression chamber
04/2000
04/20/2000DE19904004C1 Two stroke internal combustion engine has pistons with inlet valves mounted in piston crowns
01/1999
01/20/1999EP0892162A2 Dual compression and dual expansion internal combustion engine
10/1998
10/15/1998DE19715499A1 Two stroke internal combustion engine
09/1998
09/22/1998US5809947 For a piston of a two stroke engine
08/1998
08/27/1998DE19742552A1 Reciprocating piston engine with admission port in piston
08/13/1998WO1998035140A1 Internal combustion piston engine with an admission port in the piston
01/1998
01/29/1998DE19705178A1 Reciprocating piston internal combustion engine
10/1997
10/23/1997DE19615594A1 Piston integrated control for internal combustion engine
08/1997
08/27/1997EP0680551B1 Method of operating an internal combustion engine
05/1997
05/22/1997WO1997018387A1 Internal combustion engine with valve built into piston head
02/1997
02/18/1997US5603291 Internal combustion engine with valve built into piston head
01/1997
01/29/1997EP0756067A2 Dual compression and dual expansion internal combustion engine
01/02/1997DE19523114A1 IC engine with reciprocating piston
08/1996
08/06/1996US5542382 Dual compression and dual expansion internal combustion engine and method therefor
07/1996
07/17/1996CN1032326C IC engine
07/03/1996CN1032227C Valve assemble, for use in conbination with straght-cylinder, gas-compression chamber, and in combination there with
06/1996
06/20/1996WO1996018808A1 Improvements in two-stroke engines
06/13/1996DE4444084A1 Oscillating piston mechanism for IC engine
05/1996
05/09/1996DE19515695A1 Kolbenintegrierte Steuerung für Zweitakt- oder Viertakt-Brennkraftmaschinen sowie Brennkraftmaschinen mit einer derartigen Steuerung Integrated control piston two-stroke or four-stroke internal combustion engines and internal combustion engines with such control
05/02/1996WO1996012875A1 Piston-integrated control for two or four-stroke internal combustion engine and engine with such a control
05/02/1996DE4426985A1 IC engine with crankcase, crank, connecting rods and pistons
11/1995
11/08/1995EP0680551A1 Dual compression and dual expansion internal combustion engine and methodtherefor.
10/1995
10/11/1995CN1030005C 气体压缩机 Gas compressor
09/1995
09/21/1995DE4407720A1 IC engine controlled by computer chip
08/1995
08/01/1995US5437251 Two-way rotary supercharged, variable compression engine
07/1995
07/13/1995DE4400018A1 Piston valve and control for engine
03/1995
03/16/1995DE4329644A1 Simplified piston valve timing gear for the internal combustion engine
02/1995
02/09/1995DE4326119A1 Improved engine oil circuit for the piston valve engine
04/1994
04/20/1994EP0593090A1 Dual compression and dual expansion internal combustion engine and method therefor
04/20/1994EP0593089A1 Dual compression and dual expansion internal combustion engine and method therefor
03/1994
03/09/1994EP0585327A1 Two-stroke cycle internal combustion engine
02/1994
02/25/1994EP0680551A4 Dual compression and dual expansion internal combustion engine and methodtherefor.
01/1994
01/04/1994US5275085 Control device for pneumatic cylinder
11/1993
11/16/1993US5261358 Internal combustion engine
10/1993
10/28/1993WO1993021426A1 Two-stroke internal combustion engine with controlled working medium inlet suction
08/1993
08/10/1993US5233949 Two-stroke cycle engine having linear gear drive
06/1993
06/09/1993DE4229864A1 IC engine with exhaust valve in piston - has valve operated to open at end of working stroke to exhaust gas out through crankcase.
04/1993
04/22/1993DE4134706A1 Two-stage piston engine - has cylinders/pistons with two sections of different diameters, single rotation of piston shaft results in two simultaneous working strokes
04/13/1993US5201286 Two-stroke cycle internal combustion engine
11/1992
11/22/1992WO1992020908A1 Two-stroke cycle internal combustion engine
11/22/1992CA2102796A1 Two-stroke cycle internal combustion engine
11/19/1992DE3844740A1 Combustion accelerator for engine burning fuel-air mixt. - generates turbulence in mixt. by propagation of shock wave from electric discharge for boundary layer enlargement
10/1992
10/27/1992US5158046 Two-stroke cycle engine having linear gear drive
10/20/1992US5156685 Combustion promoter for internal combustion engines
10/15/1992WO1992017693A1 Dual compression and dual expansion internal combustion engine and method therefor
09/1992
09/09/1992CN1064342A 气体压缩机 Gas compressor
09/09/1992CN1064341A Valve assemble, for use in conbination with straght-cylinder, gas-compression chamber, and in combination there with
04/1992
04/01/1992EP0475947A4 Internal combustion engine
03/1992
03/25/1992EP0475947A1 Internal combustion engine
11/1991
11/19/1991CA1292213C Bounce chambers for multi-cylinder linear engine compressors
07/1991
07/09/1991US5029559 Opposed piston engine having fuel inlet through rod controlled piston port
06/1991
06/13/1991DE3940826A1 Valve system for free-piston IC engine - incorporates inlet and outlet valves within piston
03/1991
03/13/1991CN2073041U Wantonly combined branch oiling apparatus of oiling pump
12/1990
12/19/1990CN1047907A Ic engine
12/13/1990WO1990015230A1 Internal combustion engine
09/1990
09/25/1990US4958601 Valved piston with rocker arm journaled to piston
06/1990
06/28/1990DE3843521A1 Method for controlling and/or regulating the burn-through rate of a fuel-air mixture
06/06/1990CN2057957U Piston intake type internal combustion engine
12/1989
12/26/1989US4889088 Fluid flow control method and apparatus for a positive displacement engine or compressor
07/1989
07/05/1989EP0323301A1 Timing device for a volumetric engine and compressor
06/1989
06/13/1989US4838100 Starter for engine
12/1988
12/01/1988WO1988009430A1 Combustion promoter for internal combustion engines
05/1988
05/11/1988DE3637953A1 Working process of a piston engine, and piston engine working according to this process
08/1980
08/26/1980US4218994 Fluid intake and exhaust assemblies for positive displacement apparatus
08/19/1980US4217865 Internal combustion engine
11/1979
11/20/1979CA1066625A2 Variable compression ratio piston
10/1979
10/02/1979US4169434 Internal combustion engine with stepped piston supercharger
05/1979
05/29/1979US4156410 Internal combustion reciprocating engine
09/1978
09/12/1978US4112882 Two-cycle engine and piston
07/1977
07/26/1977US4037570 Stratified charge internal combustion engine
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