Patents Examined by Sheldon J Richter
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Patent number: 7043909Abstract: A coaxial Beta type Stirling cycle device, having a power piston and a displacer coaxially positioned in series within an enclosing cylinder. The power piston and power piston shaft have an opening wherein the displacer shaft passes through. A compression chamber is formed between the pistons. An expansion chamber is formed between the displacement piston and one end of the cylinder. There is a gas path provided, so that a working gas within the cylinder can pass back and forth between the expansion chamber and the compression chamber as the pistons reciprocate. The power piston and the displacer each has its own linkage to a common cam body, which has a cam groove for the power piston and a cam groove for the displacer. The cam body is a face cam having multiple cam grooves, or a barrel cam having multiple cam grooves. The cam grooves may be shaped to provide infinitely settable stroke, dwell, and phase angle.Type: GrantFiled: November 10, 2003Date of Patent: May 16, 2006Inventor: Ronald James Steele
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Patent number: 7040303Abstract: A cooling system including an intake air cooling subsystem and a liquid cooling subsystem for controlling intake air temperatures in a supercharged internal combustion diesel locomotive engine. The intake air cooling subsystem includes an air-to-water aftercooler and an air-to-air aftercooler having intake air sides connected to receive intake air flow in series between a supercharger and an engine. The liquid cooling subsystem includes at least one liquid cooling loop having a pump, a radiator and a water coolant side of the air-to-water aftercooler. At least one shared fan circulates air flow to the cooling air sides of the air-to-air aftercooler and the radiator. An optional air distribution control selectively directs circulated air flow between the air-to-air aftercooler, the radiator and other optional components of the cooling system.Type: GrantFiled: August 20, 2004Date of Patent: May 9, 2006Assignee: Electro-Motive Diesel, Inc.Inventors: Teoman Uzkan, Edward J. Cryer, III
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Patent number: 7036315Abstract: In a waste heat recovery system having a superheat controller, a reference superheat controller operating trajectory is established and compared with operational superheat controller trajectories from time to time and measuring the deviation therebetween to determine whether a low charge condition exists. If such a condition does exist, warning steps and possibly shut down steps can be taken. As a verification of a low charge condition, the absence or presence of oscillations in the pressure and/or pump power conditions can be observed.Type: GrantFiled: December 19, 2003Date of Patent: May 2, 2006Assignee: United Technologies CorporationInventors: Pengju Kang, Frederick James Cogswell
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Patent number: 7036314Abstract: Water for use in a self-contained water using unit, such as an aircraft, watercraft, ground conveyance, or stationary unit, is treated so that water of different qualities can be distributed to different use locations in the self-contained unit. The treatment is performed by a process using a combined high temperature fuel cell (1) operating at temperatures above 500° C. and a turbine (6) with a reformer process (2) integrated into the fuel cell. The reformer process is operated by the heat of the fuel cell which uses a hydrocarbon fuel to which contaminated and/or fresh water is admixed. The heat of the fuel cell is used for a water purification process. Purified water is filtered in an active charcoal filter and distributed by a distribution system. At least a portion of the purified water available for distribution is automatically salified.Type: GrantFiled: April 16, 2003Date of Patent: May 2, 2006Assignee: Airbus Deutschland GmbHInventors: Claus Hoffjann, Hans-Juergen Heinrich
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Patent number: 7036313Abstract: A co-generation turbocharged turbine system that utilizes a gas turbine (10) connecting the exhaust to a turbocharger (24) to introduce pressurized air into the inlet of the turbine for improving power and efficiency. A second embodiment places a work load (22) on an extension of the same power shaft (30), thereby connecting both the turbocharger driven rotor and drive rotor together in the form of an extended power shaft (30?). The turbocharger is in fluid communication from the gas turbine exhaust and is connected to the gas turbine air intake from the drive rotor of the turbocharger. A third embodiment consists of the same elements as the second embodiment except the work load (34) is driven by a turbocharger double-extended power shaft (30?) which extends from a vapor generating sub-system that has been added to the invention.Type: GrantFiled: March 31, 2004Date of Patent: May 2, 2006Inventor: Winstead B. Weaver
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Patent number: 7032384Abstract: Steam turbine plant includes a steam generator, a plurality of low pressure turbines being driven by steam from the steam generator, a plurality of steam condensers to condense the steam from the low pressure turbines into condensed water and a feedwater line which supplies the condensed water to the steam generator as feedwater. The feedwater line including a plurality of feedwater heating lines connected in parallel. A number of feedwater heating lines being less than a number of steam condensers. Each of the feedwater heating lines includes at least one low pressure feedwater heater provided in at least one of the steam condensers to heat the condensed water by steam bled from the low pressure turbines.Type: GrantFiled: March 10, 2004Date of Patent: April 25, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Kumagai, Yukihiko Sawa, Koichi Watanabe
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Patent number: 7032565Abstract: A modular revolving cylinder engine including at least two interdependent flywheels driven in rotation by a driving device (1) that rotates them in synchronization and in opposite directions. Each flywheel includes a plurality of equally spaced hollow pushrods that are reciprocally movable along stroke lines that are parallel and offset with respect to the central axis of rotation thereof and through which combustion gases from associated combustion chambers pass outwardly of the flywheels. End portions of the opposing pushrods engage during each rotation of the opposing flywheels during which time the oppositely directed combustion gases passing through the pushrods impinge on the outer end portion of the opposite pushrod to thereby provide thrust to drive the opposing flywheel in rotation in opposite directions.Type: GrantFiled: May 28, 2003Date of Patent: April 25, 2006Inventor: François Tagliafero
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Patent number: 7028474Abstract: A micro-electromechanical actuator includes a substrate. An elongate actuator arm has a fixed end portion that is fast with the substrate and a free end portion that is spaced from the substrate. The elongate actuator arm incorporates a heating circuit that is connectable to a power supply to heat the actuator arm. At least a portion of the actuator arm is of a material having a coefficient of thermal expansion which is such that the material is capable of thermal expansion to do work. The heating circuit is positioned to generate differential thermal expansion and contraction when heated and subsequently cooled to cause reciprocal displacement of the free end portion of the actuator arm. Control logic circuitry is positioned on the substrate along an elongate region defined on the substrate and interposed between the actuator arm and the substrate.Type: GrantFiled: September 20, 2004Date of Patent: April 18, 2006Assignee: Silverbook Research PTY LTDInventor: Kia Silverbrook
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Patent number: 7028678Abstract: In an internal combustion engine having a plurality of cylinders, some of which can be deactivated during operation of the engine, the cylinders which can be deactivated during operation are configured specifically for high load engine operation and have a lower compression ratio ? than the rest of the cylinders, which are configured specifically for low load engine operation.Type: GrantFiled: August 5, 2004Date of Patent: April 18, 2006Inventors: Thomas Betz, Frank Duvinage, Rüdiger Pfaff, Heiko Sass
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Patent number: 7021059Abstract: A heat exchange system is provided in which low temperature water from a supply pump (15) is split and supplied to an auxiliary evaporator (17) provided so as to cover an exhaust port (16) extending from a combustion chamber of an internal combustion chamber (E) and to a main evaporator (11) provided downstream of the exhaust port (16). The direction of water flowing through the auxiliary evaporator (17) is parallel to the direction of flow of exhaust gas, and as a result an upstream section of the exhaust port (16), which has a high temperature, can be cooled effectively with low temperature water, and the escape of heat from the upstream section of the exhaust port (16) can be suppressed.Type: GrantFiled: November 1, 2002Date of Patent: April 4, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masashi Shinohara, Tsuneo Endoh, Atsushi Baba
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Patent number: 7017344Abstract: A displacer spring and displacer/spring assembly for use in an FPSE and with improved wear characteristics. One embodiment calls for the use of a single machined spring operating alternately in a tension mode and a compression mode and wherein the operating frequency of displacer movement can be controlled therewith to a desired resonant frequency. The machined spring of the present invention provides enhanced structural accuracy which, in turn, leads to the elimination of lateral and side loads as compared to prior art wire-wound helical springs.Type: GrantFiled: September 19, 2003Date of Patent: March 28, 2006Inventors: Roberto O. Pellizzari, David Gedeon, Laurence Penswick
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Patent number: 7013633Abstract: An engine block has one or more cylinders with associated pistons connected to turn a crankshaft. A distributor housing mounted on the block has a base with one or more first ports that open into corresponding cylinders. A hollow cylindrical distributor mounted for rotation in the distributor housing has one or more second ports formed in its circumference to align with the first ports in the housing base, at corresponding angular positions of the distributor. A combustor housing forms a combustion chamber with a fuel inlet, an air inlet, and a hot gas outlet. The combustor housing is joined to the distributor housing so that the combustion chamber opens into the interior of the distributor. A turbine plant has a gas inlet connected to the gas outlet on the combustor housing, and an output shaft that drives a compressor. The compressor has an air outlet connected to the air inlet on the combustor housing for supplying air to the combustion chamber.Type: GrantFiled: April 23, 2004Date of Patent: March 21, 2006Inventor: Zoran Dicic
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Patent number: 7013639Abstract: Heat differential power systems and apparatus for powering liquid cooling systems and/or generating electrical power in a data processing system or a telecommunication system are presented. A number of embodiments are presented. In each embodiment a heat differential power system is implemented which utilizes the heat created a heat-generating component such as a microprocessor within the data processing or telecommunications system and the resulting heat differential created with other parts of the system as power to operate the heat differential power system and convert thermal energy into mechanical and/or electrical energy for powering a liquid cooling system, fans, other electrical components, and/or extending the battery life in a portable data processing or telecommunications system.Type: GrantFiled: December 20, 2004Date of Patent: March 21, 2006Assignee: QNK Cooling Systems Inc.Inventor: Brian A Hamman
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Patent number: 7010914Abstract: Compressor surge on turbocharged Diesel engines when operating in temporary throttled airflow, such as are required for the periodic regeneration of lean NOx traps is prevented by controlled operation of a boost air blow-off valve positioned downstream of the compressor outlet of the turbocharger.Type: GrantFiled: March 4, 2005Date of Patent: March 14, 2006Assignee: Southwest Research InstituteInventors: Charles E. Roberts, Jr., Ryan C. Roecker
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Patent number: 7010917Abstract: A turbocharger comprises a compressor wheel (7) assembled to one end of a turbocharger shaft (8). A nut (17) is threaded on to the end of the shaft (8) to clamp the wheel (7) on the shaft to prevent both axial movement of the wheel (7) along the shaft (8) and rotational slippage. The torque capacity of the coupling between the compressor wheel (7) and nut (17) is increased by treating contacting surfaces of the coupling to increase their co-efficient of friction.Type: GrantFiled: October 22, 2003Date of Patent: March 14, 2006Assignee: Holset Engineering Company, LimitedInventor: Anthony Billington
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Patent number: 7007473Abstract: Evaporator temperature control means (U) that, in order to make the temperature of steam generated by heating water using exhaust gas of an engine coincide with a target temperature, controls the amount of water supplied to the evaporator based on the flow rate of the exhaust gas, the temperature of the exhaust gas, the temperature of the water, and the temperature of the steam. Calculating an exhaust gas flow rate (Gmix) based on a fuel injection quantity, an air/fuel ratio, and a rotational speed of the engine improves the precision and the responsiveness of the calculation. Controlling the amount of water supplied to the evaporator based on this exhaust gas flow rate (Gmix) therefore improves the accuracy with which the steam temperature is controlled so as to make it coincide with the target temperature.Type: GrantFiled: September 20, 2002Date of Patent: March 7, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shuji Nagatani, Tsuyoshi Baba, Shigeru Ibaraki, Akihisa Sato, Susumu Maeda
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Patent number: 7007469Abstract: A Stirling engine which utilizes an inner and outer dual shell pressure containment system surrounding the high pressure and temperature engine components. The space between the shells is filled with a pressure backup gas and an insulation material with the backup gas being in communications with the working fluid. The backup gas and insulation provide a time varying pressure field, driven by the pressure variations in the Stirling engine working fluid, which cancels the pressure differential on the heat transfer tubing and allows an averaging of pressures during each cycle of engine operation. In one embodiment the backup gas is placed inside the inner shell.Type: GrantFiled: July 12, 2002Date of Patent: March 7, 2006Inventor: Wayne T. Bliesner
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Patent number: 7007472Abstract: A system for limiting the rotational speed of a turbocharger is disclosed. The turbocharger includes a compressor having an outlet fluidly coupled to an intake manifold of an internal combustion engine and a compressor outlet, a turbine having an inlet fluidly coupled to an exhaust manifold of the engine and an outlet. A control computer is configured to compute a maximum compressor outlet pressure value as a function of the compressor inlet pressure, the compressor inlet temperature, an operating condition other than the compressor inlet pressure or temperature and a maximum allowable turbocharger speed value, and to control a turbine swallowing capacity or efficiency control mechanism in a manner that limits compressor outlet pressure to the maximum compressor outlet pressure value to thereby limit rotational speed of the turbocharger to the maximum turbocharger speed value. The operating condition may be, for example, engine intake air flow rate or engine speed.Type: GrantFiled: February 10, 2004Date of Patent: March 7, 2006Assignee: Cummins, Inc.Inventors: Scott R. Baize, Jason V. Dukes, Norbert J. Rehm, IV, Dave L. Dunnuck
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Patent number: 7004142Abstract: A control system for an exhaust brake which operates to impede exhaust flow from a turbocharged combustion engine when the engine throttle is closed. The control system includes means for delaying application the exhaust brake only when the vehicle throttle is closed to allow the rotational speed of the turbo charger to drop thereby reducing wear to seal components.Type: GrantFiled: February 14, 2003Date of Patent: February 28, 2006Assignee: Holset Engineering Company, Ltd.Inventors: Kenneth Ball, Pierre B. French
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Patent number: 7003947Abstract: A gyro wave-activated power generator utilizing wave energy which has, as a component, a control moment gyro, and which comprises a floating body (1), a control moment gyro (5) supported by the floating body, and a power generator (10) connected to the gimbal shaft of the gyro through a gearing to increase speed(9), and is characterized by the gimbal (6) of the gyro being rotated by the movement of the floating body by wave energy to drive the power generator (10) for power generation.Type: GrantFiled: March 22, 2002Date of Patent: February 28, 2006Assignee: Japan Science and Technology CorporationInventor: Hiroshi Kanki