| Patents for F01B 11 - Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type (808) |
|---|
| 04/18/2001 | EP0772734B2 Hydraulic switching valve, and a free-piston engine provided therewith |
| 04/12/2001 | DE19948442A1 Plunger pump unit for high pressure operations has two co-axially opposed pump units between which is constructed free-piston engine equipped with stepped piston directly or indirectly connected to plungers of pump units |
| 04/10/2001 | US6213097 Engine working according to the method of pulsating combustion |
| 03/21/2001 | EP0882174B1 Pneumatic motor |
| 03/07/2001 | EP1080301A1 Piston for use in an engine |
| 02/20/2001 | CA2058659C Cyclic hydraulic actuator |
| 01/10/2001 | EP0655120B1 Variable spring free piston stirling machine |
| 10/10/2000 | US6128903 Solar portable steam engine |
| 09/26/2000 | US6123008 Compressed-air piston engine |
| 09/05/2000 | US6112522 Total flow liquid piston engine |
| 08/03/2000 | WO2000045074A1 Spool valve for fluid control |
| 08/03/2000 | DE19903907A1 Hydraulic load drive method, for a fork-lift truck , involves using free piston engine connected in parallel with pneumatic-hydraulic converter so load can be optionally driven by converter and/or engine |
| 08/01/2000 | US6095192 Spool valve for fluid control |
| 06/20/2000 | US6076506 Piston for use in an engine |
| 05/30/2000 | US6067796 Gas driven mechanical oscillator and method |
| 02/29/2000 | US6029616 Free piston engine |
| 02/16/2000 | CN1049471C 液压冲击装置 Hydraulic impact device |
| 01/27/2000 | WO2000004287A1 Generating displacement and thermoacoustic refrigerator |
| 12/07/1999 | US5996773 Fluid drive for reciprocating floor |
| 11/30/1999 | US5992359 Fluid actuated engines and engine mechanisms |
| 11/25/1999 | WO1999060258A1 Piston for use in an engine |
| 11/25/1999 | CA2333236A1 Piston for use in an engine |
| 11/16/1999 | US5983638 Hydraulic switching valve, and a free piston engine provided therewith |
| 09/07/1999 | CA2049292C Unsymmetrical free piston engine |
| 08/11/1999 | EP0934892A1 Fluid drive for reciprocating floor |
| 08/06/1999 | CA2260645A1 Fluid drive for reciprocating floor |
| 07/27/1999 | CA2049352C A method and an arrangement for controlling a linear motor |
| 07/21/1999 | EP0929740A1 Engine working according to the method of pulsating combustion |
| 06/29/1999 | US5916350 Linear bearing assembly |
| 04/14/1999 | EP0666961B1 Air motor with means to prevent freezing |
| 03/09/1999 | US5878570 Apparatus for operating and controlling a free-piston stirling engine |
| 03/09/1999 | US5878569 Energy conversion system |
| 02/24/1999 | CN1209185A Pneumatic motor |
| 02/23/1999 | US5873246 Centering system for free piston machine |
| 02/02/1999 | US5865040 Gas driven mechanical oscillator and method |
| 01/12/1999 | US5857335 Hydraulic impulse rotational motor |
| 12/30/1998 | CN1203322A Compression air-piston motor |
| 12/23/1998 | EP0886036A2 Compressed air piston motor |
| 12/09/1998 | EP0882174A1 Pneumatic motor |
| 11/03/1998 | US5829393 Free-piston engine |
| 10/27/1998 | US5826482 Hydraulic actuator |
| 09/16/1998 | EP0772735B1 Free-piston engine |
| 09/15/1998 | US5806314 Pressurized cylinder and booster in a low volume pressure circuit |
| 08/12/1998 | EP0857877A2 Pneumatic-hydraulic converter |
| 07/15/1998 | EP0840844A4 Free piston engine |
| 07/01/1998 | CN1186535A 自由活塞发动机 Free piston engine |
| 06/16/1998 | US5765374 Method for converting energy of an expanding gas into mechanical work |
| 06/11/1998 | WO1998025018A1 Centering system for free piston machine |
| 05/13/1998 | EP0840844A1 Free piston engine |
| 05/06/1998 | EP0839265A1 Operation and control of a free piston aggregate |
| 04/23/1998 | DE19746230A1 Energy conversion system |
| 04/09/1998 | WO1998014694A1 Engine working according to the method of pulsating combustion |
| 04/09/1998 | DE19640191A1 Nach dem Verfahren der pulsierenden Verbrennung arbeitende Kraftmaschine In the process of pulsating combustion engine working |
| 03/25/1998 | EP0772734B1 Hydraulic switching valve, and a free-piston engine provided therewith |
| 12/23/1997 | US5699715 Piston for a reciprocating piston machine |
| 12/10/1997 | EP0655120A4 Variable spring free piston stirling machine. |
| 11/05/1997 | EP0804693A1 Piston rod bearing assembly of reciprocating piston engine |
| 08/28/1997 | WO1997031178A1 Pneumatic motor |
| 08/06/1997 | CN1156211A Hydraulic impact device for stepless independently regulating impact energy and impact frequency |
| 07/23/1997 | EP0767865A4 Free piston end position limiter |
| 07/17/1997 | DE19601917A1 Electrical power supply to MSR apparatus via intermediate pneumatic energy source for explosion hazardous process automation environments |
| 07/08/1997 | US5646363 Free piston machine |
| 06/11/1997 | EP0560956B1 Oscillating piston motor and installation with an oscillating piston motor |
| 06/04/1997 | EP0381709B1 Compact fluid operated apparatus and method |
| 05/14/1997 | EP0773346A1 Compressed gas motor |
| 05/14/1997 | EP0772735A1 Free-piston engine |
| 05/14/1997 | EP0772734A1 Hydraulic switching valve, and a free-piston engine provided therewith |
| 05/06/1997 | US5626068 Hydraulic reciprocating mechanism |
| 04/16/1997 | EP0767865A1 Free piston end position limiter |
| 01/29/1997 | EP0683854B1 Free-piston engine having a fluid pressure unit |
| 01/29/1997 | EP0614508B1 Free-piston engine having a fluid energy unit |
| 01/08/1997 | CN1139977A Fluid actuated engines and engine mechanisms |
| 12/27/1996 | EP0749525A1 Device for operating and controlling a floating-piston stirling engine |
| 12/24/1996 | US5586480 Pneumatic motor |
| 11/20/1996 | EP0711378A4 A gas driven mechanical oscillator and method |
| 10/24/1996 | WO1996033343A1 Free piston engine |
| 10/24/1996 | CA2218388A1 Free piston engine |
| 10/17/1996 | WO1996032576A1 Operation and control of a free piston aggregate |
| 10/17/1996 | CA2217864A1 Operation and control of a free piston aggregate |
| 09/17/1996 | US5556262 Free-piston engine having a fluid energy unit |
| 09/04/1996 | CN1130413A Gas driven mechanical oscillator and method |
| 07/31/1996 | EP0723624A1 Reciprocable device |
| 07/25/1996 | WO1996022473A1 Piston rod bearing assembly of reciprocating piston engine |
| 07/23/1996 | US5537820 Free piston end position limiter |
| 05/15/1996 | EP0711378A1 A gas driven mechanical oscillator and method |
| 04/09/1996 | US5505593 Reciprocable device with switching mechanism |
| 04/02/1996 | US5502968 Free piston stirling machine having a controllably switchable work transmitting linkage between displacer and piston |
| 02/29/1996 | WO1996006273A1 Synchronous piston stirling engine |
| 02/22/1996 | DE4429602A1 Synchronkolben-Stirlingmaschine Synchronous piston Stirling engine |
| 02/08/1996 | WO1996003576A1 Free-piston engine |
| 02/08/1996 | WO1996003575A1 Hydraulic switching valve, and a free-piston engine provided therewith |
| 01/31/1996 | EP0613521B1 Free-piston engine having a fluid pressure unit |
| 01/09/1996 | US5482445 Free-piston engine having a slidable ring for moving the piston |
| 01/04/1996 | WO1996000342A1 Free piston end position limiter |
| 01/03/1996 | EP0464029B1 Unsymmetrical free piston engine |
| 12/12/1995 | US5473893 Free-piston engine having a fluid pressure unit |
| 12/07/1995 | WO1995033125A1 A gas driven mechanical oscillator and method |
| 12/07/1995 | CA2168337A1 A gas driven mechanical oscillator and method |
| 11/29/1995 | EP0683854A1 Free-piston engine having a fluid pressure unit. |
| 11/02/1995 | WO1995029334A1 Device for operating and controlling a floating-piston stirling engine |