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