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| Number | Title | Issue Date |
| 8075281 | Rotary pressure transfer device A pressure transfer device for the transfer of pressure energy from a high pressure fluid stream to a lower pressure fluid stream wherein a generally cylindrical housing (61) contains a rotor (63) having a plurality of channels (65) extending ax... | 12/13/2011 |
| 7815421 | Channel form for a rotating pressure exchanger A pressure exchanger transferring pressure energy from a liquid in a first liquid system to a liquid in a second liquid system, having a housing with inlet and outlet connection openings for each liquid and a rotor arranged in the housing for rotation about a longit... | 10/19/2010 |
| 7661932 | Pressure exchange apparatus A pressure exchange apparatus includes a main section having a plurality of internal chambers and a piston disposed in each of the chambers. The apparatus also includes a pair of fluid distributor assemblies fixed to the main section and co-axial therewith. Each of ... | 02/16/2010 |
| 7306437 | Pressure exchanger A pressure exchanger for transferring pressure energy from a high-pressure fluid stream to low-pressure fluid stream. A ducted rotor is positioned on a central axle between two end covers inside the vessel with a coaxial inlet and outlet pair that is in communicatio... | 12/11/2007 |
| 7214315 | Pressure exchange apparatus with integral pump A pressure exchange device is provided that utilizes an integral high pressure boost pump that is in fluid communication with a pressure exchange unit. An optional low pressure boost pump unit may also be provided. The pressure exchange unit comprises a rotating rot... | 05/08/2007 |
| 7207781 | Pressure exchange apparatus with dynamic sealing mechanism A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing... | 04/24/2007 |
| 7201557 | Rotary pressure exchanger A pressure exchanger for the transfer of pressure energy from a high pressure fluid stream to a lower pressure fluid stream wherein a generally cylindrical housing contains a rotor having a plurality of channels extending axially therethrough and a pair of end cover... | 04/10/2007 |
| 7168927 | Pressure exchanger system A pressure exchanger system having at least two tubular chambers, in which a plurality of reversing valves reverse the flow paths of fluid flows through the at least two tubular chambers. At least one driven reversing valve alternately reverses the flow paths betwee... | 01/30/2007 |
| 7137243 | Constant volume combustor A pressure wave apparatus utilizing the principles of pulsed detonation and wave rotor technologies. The apparatus includes inlet and outlet ports that interface with a plurality of fluid flow passageways on a rotor. A buffer gas is routed through some of the inlet ... | 11/21/2006 |
| 7028677 | External drive supercharger An external drive supercharger is described. The external drive supercharger includes an impeller, a multibelt pulley adapted to a drive source, an impeller pulley drivingly coupled to the impeller, and an external drive belt having at least one rib coupled to the m... | 04/18/2006 |
| 6988493 | Method for the control of an internal combustion engine combined with a gas-dynamic pressure wave machine The method for the control of an internal combustion engine combined with a gas-dynamic pressure wave machine comprising a rotatable housing in order to control the process tuning over the entire performance field of the internal combustion engine as well as a varia... | 01/24/2006 |
| 6659731 | Pressure exchanger A pressure exchanger for transferring pressure energy from one third flow to a second where two end covers (13, 14), a rotor (11) and a rotor liner (12) are mounted together via a centre bolt (10) in a pressure housing (1) in order to reduce elastic defor... | 12/09/2003 |
| 6537035 | Pressure exchange apparatus A pressure exchange apparatus for transferring the energy of pressurization between two fluids, wherein one fluid is at a relatively higher pressure than the other comprising a rotating cylindrical rotor having a bore extending therethrough in fluid commu... | 03/25/2003 |
| 6499288 | Pressurizer for a rocket engine The present invention provides for a pressurizer for pressurizing a fluid, comprising a pressurant entrance for the introduction of a pressurant, a fluid entrance for the fluid, a fluid exit for the fluid, and a transfer chamber movable in a cycle with re... | 12/31/2002 |
| 6439209 | Gas-dynamic pressure wave machine The gas-dynamic pressure wave machine, which is destined for the charge air supply of an internal combustion engine, comprises a rotor, a low pressure fresh air inlet channel, a high pressure charge air channel leading to the internal combustion engine, a... | 08/27/2002 |
| 6367460 | Gas-dynamic pressure wave machine The gas-dynamic pressure wave machine, which is destined for the charge air supply of an internal combustion engine, comprises a rotor, a low pressure fresh air inlet channel, a high pressure charge air channel leading to the internal combustion engine, a... | 04/09/2002 |
| 6314951 | Gas-dynamic pressure-wave machine The gas-dynamic pressure wave machine which is destined for the charge air supply of an internal combustion engine comprises a rotor (6, 40) with cells (18, 41), a low pressure fresh air inlet channel (14, 38), a high pressure charge air channel (10, 32) ... | 11/13/2001 |
| 6082341 | Supercharger for engine There is disclosed a supercharger for an engine in which intake air is increased in pressure by the use of exhaust gas flowed into the supercharger from the engine, and is fed to the engine. An impeller 2, having a plurality of blades formed on an outer p... | 07/04/2000 |
| 5799641 | Pressure-wave supercharger A pressure-wave supercharger for an internal combustion engine is incorporated into the engine flywheel. The supercharger includes a rotor with a plurality of cells extending axially of the rotor and arranged circumferentially about the rotor, an exhaust ... | 09/01/1998 |
| 5524587 | Sliding vane engine A sliding vane engine, where the vanes slide with at least of one of an axial and radial component of vane motion, and where the compression ratio of the engine may be variably controlled. The engine includes a stator and a rotor in relative rotation, and... | 06/11/1996 |
| 5522217 | Pressure wave machine with integrated combustion and method for cooling the rotor of this pressure wave machine In a pressure wave machine with integrated combustion, which consists essentially of a rotor (1) which rotates between two side parts (4), (5) and has cells (2) in which an ignition and combustion process takes place repetitively, cooling air conduits (7)... | 06/04/1996 |
| 5338158 | Pressure exchanger having axially inclined rotor ducts A pressure exchanger for transfer of pressure energy from one fluid flow to another in a housing having inlet and outlet ducts for each fluid flow and a rotor adapted to rotate about its longitudinal axis within the housing. The rotor is formed with a plu... | 08/16/1994 |
| 5274994 | Pressure wave machine with integrated combustion A pressure wave machine with integrated combustion has a cellular wheel (10) containing a number of cells (16) in which an always recurring ignition and combustion process takes place. To maintain this always recurring process, neither a supply of ignitio... | 01/04/1994 |
| 5267432 | System and method for cancelling expansion waves in a wave rotor A wave rotor system includes a wave rotor coupled to first and second end plates. Special ports are provided, one in each of the first and second end plates, to cancel expansion waves generated by the release of working fluid from the wave rotor. One of t... | 12/07/1993 |
| 5154583 | Rotor of a pressure wave machine In a rotor of a pressure wave machine, rotor cells (2) are evenly distributed at its periphery, these rotor cells being intended to accept two gaseous media during operation for the purpose of compressing the first by means of pressure waves of the second... | 10/13/1992 |
| 5116205 | Pressure exchanger for internal-combustion engines This pressure exchanger has an at least single-series cellular wheel arranged on a central axis and equipped with cells. These cells interact in a specific time sequence on the one hand with a hot-gas guide housing and on the other hand with an air guide ... | 05/26/1992 |
| 5069600 | Pressure wave machine This pressure wave machine has a cell wheel (2) with a longitudinal axis (3) which is supported in a casing by means of a bearing. One end face (4) of the cell wheel (2) interacts with a hot gas guidance casing (6) and the other (5) interacts with a gas g... | 12/03/1991 |
| 5052895 | Pressure wave machine In a pressure wave machine, the ducts of the connecting casings (3, 4) to and from the cells (2) are provided with a curvature running in the axial direction to the opening of the cells (2) and concave in the direction of the axis (5) of the rotor (1). By... | 10/01/1991 |
| 5052362 | Gas-dynamic pressure-wave supercharger with exhaust bypass In the case of a gas-dynamic pressure-wave supercharger for the supercharging of an internal combustion engine, an exhaust bypass in the gas housing (2), with a medium-controlled gate, connects the high-pressure gas inflow duct (4) to the low-pressure gas... | 10/01/1991 |
| 5051064 | Lightweight gas casing The main parts of the lightweight gas casing are a rigid force-absorbing part (1) consisting of metal plates (2, 3) which can be worked without cutting, have flanges (4, 5, 6) for connecting the casing to fluid-conducting engine parts and are rigidly conn... | 09/24/1991 |
| 5011375 | Gas-dynamic pressure-wave machine with reduced noise amplitude In a multiflow gas-dynamic pressure-wave machine, with a rotor, a housing surrounding the rotor as well as an air housing and a gas housing with ducts for the intake and discharge of the gaseous working substance, the cell ring of the rotor is subdivided ... | 04/30/1991 |
| 4997343 | Gas-dynamic pressure-wave machine with reduced noise amplitude In a multiflow gas-dynamic pressure-wave machine, with a rotor, a housing surrounding the rotor as well as an air housing and a gas housing with ducts for the intake and discharge of the gaseous working medium, the cell ring of the rotor is subdivided by ... | 03/05/1991 |
| 4973228 | Rotor of a compression-wave engine The rotor (1) of a compression-wave engine has cells (6) on its periphery which are concavely curved on the two end faces of the rotor (1) inwards towards its center and towards the rotor axis. Consequently, the absolute trajectory of a particle runs from... | 11/27/1990 |
| 4971524 | Gas-dynamic pressure-wave machine with reduced noise amplitude In a multiflow gas-dynamic pressure-wave machine, with a rotor, a housing surrounding the rotor as well as an air housing and a gas housing with ducts for the intake and discharge of the gaseous working substance, the cell ring of the rotor is subdivided ... | 11/20/1990 |
| 4887942 | Pressure exchanger for liquids A pressure exchanger for transfer of pressure energy from a liquid flow of one liquid system to a liquid flow of another liquid system includes a housing (1) with inlet and outlet ducts forming pairs of ducts for each liquid flow. A cylindrical rotor (8) ... | 12/19/1989 |
| 4859153 | Pressure wave charger In a pressure wave charger for the supercharging of internal combustion machines, the cell rotor consists of a ceramic material and is driven by the force of the gases of the internal combustion machine. The cell rotor is located between the air housing a... | 08/22/1989 |
| 4838234 | Free-running pressure wave supercharger Flanged onto the air casing (6) of a free-running pressure wave supercharger for an internal combustion engine is an electric motor (10a) whose shaft (28) is effectively connected to the rotor shaft (8) via a free-wheel overrunning clutch (9a) with engage... | 06/13/1989 |
| 4808082 | Pressure wave supercharger In this pressure wave supercharger, the driving belt pulley (19) for the rotor having a freewheel clutch (23) and rolling contact bearings (22) provided on both sides of the same are supported on the rotor shaft (18+20). With respect to the operation of t... | 02/28/1989 |
| 4796595 | Free-running pressure wave supercharger driven by gas forces In a free-running pressure wave supercharger driven by the gas forces, nozzles (27) are provided in the gas casing (6) and possibly also in the air casing (5), which nozzles are connected--via a drive line (26)--with a position in the air casing (5), pref... | 01/10/1989 |
| 4715185 | Method and means for increasing energy output and thermal efficiency of an energy cycle such as the Rankine steam cycle Multi-stage extraction steam is taken at varying pressures from a mixed pressure turbine and sequentially charged into closed path conveyor compartments to progressively increase the pressure of steam within the compartments. The highest pressure stage of... | 12/29/1987 |
