| Patents for F04F 13 - Pressure exchangers (345) |
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| 10/18/2001 | WO2001077529A2 Method for reducing noise and cavitation in machines and pressure exchangers which pressurize or depressurize fluids by means of the displacement principle |
| 12/12/2000 | US6158422 Supercharging arrangement for the charge air of an internal combustion engine |
| 11/01/2000 | CN1272166A Pressure exchanger |
| 07/19/2000 | EP1019636A1 Pressure exchanger |
| 07/04/2000 | US6082341 Supercharger for engine |
| 06/28/2000 | EP0864035B1 Supercharging arrangement for the charge air of an internal combustion engine |
| 06/14/2000 | EP1007829A1 Gas-dynamic pressure wave machine |
| 05/09/2000 | US6058958 Pulsatile flow system and method |
| 11/23/1999 | US5988993 Pressure exchanger having a rotor with automatic axial alignment |
| 09/08/1999 | EP0839288B1 Pressure exchanger |
| 04/08/1999 | WO1999017028A1 Pressure exchanger |
| 04/08/1999 | CA2307185A1 Pressure exchanger |
| 03/11/1999 | WO1999011915A1 Gas-dynamic pressure-wave machine |
| 03/11/1999 | WO1999011914A1 Gas-dynamic pressure-wave machine |
| 03/11/1999 | WO1999011913A1 Gas-dynamic pressure wave machine |
| 03/03/1999 | EP0899435A1 Aerodynamic pressure wave machine |
| 03/03/1999 | EP0899434A1 Aerodyamic pressure wave machine |
| 02/25/1999 | DE19837430A1 Charger for internal combustion engine |
| 09/16/1998 | EP0864035A1 Supercharging arrangement for the charge air of an internal combustion engine |
| 09/01/1998 | US5799641 Pressure-wave supercharger |
| 05/06/1998 | EP0839288A1 Pressure exchanger |
| 06/05/1997 | WO1997020134A1 Supercharging arrangement for the charge air of an internal combustion engine |
| 06/06/1996 | WO1996017176A1 Pressure exchanger |
| 06/06/1996 | CA2206213A1 Pressure exchanger |
| 01/04/1996 | DE4421990A1 Pressure wave machine with integrated combustion |
| 03/09/1995 | DE4330036A1 Method for cooling the rotor of pressure-wave machines |
| 01/17/1995 | US5381653 Aircraft engine with pressure exchanger |
| 12/15/1994 | DE4319318A1 Housing for a turbo-machine working as an energy exchanger with isochoric combustion |
| 10/13/1994 | DE4409565A1 Gas-turbine unit (set) having a pressure (compressional, expansion)-wave (dynamic pressure) machine |
| 08/16/1994 | US5338158 Pressure exchanger having axially inclined rotor ducts |
| 06/16/1994 | DE4241613A1 Aircraft engine with fan or propeller drive - has two independently rotating coaxial shafts with fuel combustion in compressed air fuel-enriching machine with bucket wheel |
| 05/24/1994 | US5313785 Dynamic pressure machine |
| 04/27/1994 | EP0498825B1 A pressure exchanger |
| 03/29/1994 | US5297384 Method for cancelling expansion waves in a wave rotor |
| 01/05/1994 | EP0576716A1 Pressure exchanger |
| 12/23/1993 | DE4220273A1 Gas turbine power plant - has separating walls for separate guidance of hot gas flows through low pressure turbine |
| 12/07/1993 | US5267432 System and method for cancelling expansion waves in a wave rotor |
| 10/07/1993 | DE4210542A1 Gas-turbine with diffuser at pressure-wave machine outlet - recovers pressure separately from high- and low-speed portions of outflowing current |
| 06/29/1993 | CA1319563C Pressure exchanger for liquids |
| 10/13/1992 | US5154583 Rotor of a pressure wave machine |
| 08/19/1992 | EP0498825A1 A pressure exchanger. |
| 08/12/1992 | EP0298097B1 Pressure exchanger for liquids |
| 05/26/1992 | US5116205 Pressure exchanger for internal-combustion engines |
| 03/04/1992 | EP0472748A1 Rotor of a pressure wave machine |
| 02/26/1992 | CA2049438A1 Rotor of a pressure wave machine |
| 12/03/1991 | US5069600 Pressure wave machine |
| 10/01/1991 | US5052895 Pressure wave machine |
| 10/01/1991 | US5052362 Gas-dynamic pressure-wave supercharger with exhaust bypass |
| 09/24/1991 | US5051064 Lightweight gas casing |
| 06/12/1991 | EP0431515A1 Pressure exchanger |
| 06/12/1991 | EP0431433A1 Pressure exchanger for internal combustion engines |
| 06/07/1991 | CA2031476A1 Pressure wave machine |
| 05/23/1991 | DE4034341A1 IC engine pressure wave charge operation - controls exhaust branch passage dependent on engine speed and load |
| 05/16/1991 | WO1991006781A1 A pressure exchanger |
| 05/16/1991 | DE3937704A1 Gas dynamic pressure wave machine - has flow channel arranged into concentric flow channels within rotor |
| 05/16/1991 | DE3937703A1 Gas dynamic pressure wave machine - has flow channels within rotor provided by concentric tubes between hub and cover band |
| 05/16/1991 | DE3937702A1 Gas dynamic pressure wave machine - has tubular flow channels within rotor arranged with varying distributions |
| 05/16/1991 | CA2072607A1 Pressure exchange having axially inclined rotor ducts |
| 04/30/1991 | US5011375 Gas-dynamic pressure-wave machine with reduced noise amplitude |
| 03/05/1991 | US4997343 Gas-dynamic pressure-wave machine with reduced noise amplitude |
| 02/20/1991 | EP0413130A1 Pressure wave machine |
| 02/18/1991 | CA2021728A1 Pressure wave machine |
| 01/17/1991 | DE3922632A1 Pressure-wave machine in vehicle - has by=pass valve between gas passages opening in proportion to excess inlet pressure |
| 01/17/1991 | DE3922623A1 Pressure-wave engine charger - has rotor float limited by gas and air housings |
| 11/27/1990 | US4973228 Rotor of a compression-wave engine |
| 11/20/1990 | US4971524 Gas-dynamic pressure-wave machine with reduced noise amplitude |
| 10/31/1990 | DE3913967A1 Pressure wave IC engine supercharger - incorporates ceramic rotor with roughened face |
| 09/05/1990 | EP0385178A1 Rotor of a pressure wave machine |
| 09/01/1990 | CA2010583A1 Rotor of a compression-wave engine |
| 08/30/1990 | DE3905560A1 Pressure-wave machine |
| 08/02/1990 | DE3902544A1 Pressure-wave machine |
| 08/01/1990 | EP0379715A1 Light construction gas housing |
| 07/04/1990 | CN2058934U Improved pulse converting pressure-increasing system for diesel engine |
| 07/04/1990 | CN1043543A Automatic oil pumping tube |
| 12/19/1989 | US4887942 Pressure exchanger for liquids |
| 09/19/1989 | US4866829 Method of producing a ceramic rotor |
| 08/22/1989 | US4859153 Pressure wave charger |
| 06/13/1989 | US4839214 Press feeding extrusion-controlling particle size |
| 06/13/1989 | US4838234 Free-running pressure wave supercharger |
| 04/12/1989 | CN1032382A Novel rapid vacuum-pumping method |
| 01/10/1989 | US4796595 Free-running pressure wave supercharger driven by gas forces |
| 10/19/1988 | EP0286931A1 Pressure wave supercharger |
| 10/05/1988 | EP0285362A2 Ceramic rotors for pressure wave type superchargers and production thereof |
| 09/08/1988 | DE3705609A1 Energy exchanger |
| 07/14/1988 | WO1988005133A1 Pressure exchanger for liquids |
| 05/17/1988 | US4744213 Pressure-wave machine |
| 03/10/1988 | DE3728189A1 Pressure-wave supercharger for an internal combustion engine |
| 02/25/1988 | WO1988001341A1 Internal combustion engine |
| 02/25/1988 | DE3628037A1 Verbrennungskraftmaschine Internal combustion engine |
| 01/19/1988 | US4719746 Gas turbine with a pressure wave machine as the high pressure compressor part |
| 12/01/1987 | CA1229832A1 Dynamic pressure machine for charging internal combustion engines |
| 09/09/1987 | EP0235609A1 Turbo loader making use of pressure waves |
| 07/14/1987 | US4679393 Pressure wave machine operating as pressure exchanger, in particular for use as the high-pressure compressor for gas turbines |
| 05/05/1987 | US4662342 Pressure wave supercharger for an internal combustion engine with a device for controlling the high pressure exhaust gas flow |
| 04/28/1987 | CA1221071A1 Gas-dynamic pressure wave machine with exhaust gas bypass |
| 03/25/1987 | EP0215091A1 Improvements in pressure-exchangers |
| 03/04/1987 | EP0212181A1 Gas turbine using a pressure wave machine as a high-pressure compressor |
| 03/03/1987 | US4646704 Pressure wave supercharger with vibration damped rotor |
| 02/04/1987 | EP0210328A1 Turbo charger for an internal-combustion engine comprising a controlling device for the high-pressure exhaust gas flow |
| 09/25/1986 | WO1986005558A1 Improvements in pressure-exchangers |