Patents Examined by Sheldon J Richter
  • Patent number: 7043909
    Abstract: 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: Grant
    Filed: November 10, 2003
    Date of Patent: May 16, 2006
    Inventor: Ronald James Steele
  • Patent number: 7040303
    Abstract: 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: Grant
    Filed: August 20, 2004
    Date of Patent: May 9, 2006
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Teoman Uzkan, Edward J. Cryer, III
  • Patent number: 7036315
    Abstract: 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: Grant
    Filed: December 19, 2003
    Date of Patent: May 2, 2006
    Assignee: United Technologies Corporation
    Inventors: Pengju Kang, Frederick James Cogswell
  • Patent number: 7036314
    Abstract: 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: Grant
    Filed: April 16, 2003
    Date of Patent: May 2, 2006
    Assignee: Airbus Deutschland GmbH
    Inventors: Claus Hoffjann, Hans-Juergen Heinrich
  • Patent number: 7036313
    Abstract: 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: Grant
    Filed: March 31, 2004
    Date of Patent: May 2, 2006
    Inventor: Winstead B. Weaver
  • Patent number: 7032384
    Abstract: 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: Grant
    Filed: March 10, 2004
    Date of Patent: April 25, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Kumagai, Yukihiko Sawa, Koichi Watanabe
  • Patent number: 7032565
    Abstract: 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: Grant
    Filed: May 28, 2003
    Date of Patent: April 25, 2006
    Inventor: François Tagliafero
  • Patent number: 7028474
    Abstract: 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: Grant
    Filed: September 20, 2004
    Date of Patent: April 18, 2006
    Assignee: Silverbook Research PTY LTD
    Inventor: Kia Silverbrook
  • Patent number: 7028678
    Abstract: 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: Grant
    Filed: August 5, 2004
    Date of Patent: April 18, 2006
    Inventors: Thomas Betz, Frank Duvinage, Rüdiger Pfaff, Heiko Sass
  • Patent number: 7021059
    Abstract: 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: Grant
    Filed: November 1, 2002
    Date of Patent: April 4, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masashi Shinohara, Tsuneo Endoh, Atsushi Baba
  • Patent number: 7017344
    Abstract: 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: Grant
    Filed: September 19, 2003
    Date of Patent: March 28, 2006
    Inventors: Roberto O. Pellizzari, David Gedeon, Laurence Penswick
  • Patent number: 7013633
    Abstract: 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: Grant
    Filed: April 23, 2004
    Date of Patent: March 21, 2006
    Inventor: Zoran Dicic
  • Patent number: 7013639
    Abstract: 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: Grant
    Filed: December 20, 2004
    Date of Patent: March 21, 2006
    Assignee: QNK Cooling Systems Inc.
    Inventor: Brian A Hamman
  • Patent number: 7010914
    Abstract: 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: Grant
    Filed: March 4, 2005
    Date of Patent: March 14, 2006
    Assignee: Southwest Research Institute
    Inventors: Charles E. Roberts, Jr., Ryan C. Roecker
  • Patent number: 7010917
    Abstract: 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: Grant
    Filed: October 22, 2003
    Date of Patent: March 14, 2006
    Assignee: Holset Engineering Company, Limited
    Inventor: Anthony Billington
  • Patent number: 7007473
    Abstract: 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: Grant
    Filed: September 20, 2002
    Date of Patent: March 7, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shuji Nagatani, Tsuyoshi Baba, Shigeru Ibaraki, Akihisa Sato, Susumu Maeda
  • Patent number: 7007469
    Abstract: 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: Grant
    Filed: July 12, 2002
    Date of Patent: March 7, 2006
    Inventor: Wayne T. Bliesner
  • Patent number: 7007472
    Abstract: 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: Grant
    Filed: February 10, 2004
    Date of Patent: March 7, 2006
    Assignee: Cummins, Inc.
    Inventors: Scott R. Baize, Jason V. Dukes, Norbert J. Rehm, IV, Dave L. Dunnuck
  • Patent number: 7004142
    Abstract: 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: Grant
    Filed: February 14, 2003
    Date of Patent: February 28, 2006
    Assignee: Holset Engineering Company, Ltd.
    Inventors: Kenneth Ball, Pierre B. French
  • Patent number: 7003947
    Abstract: 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: Grant
    Filed: March 22, 2002
    Date of Patent: February 28, 2006
    Assignee: Japan Science and Technology Corporation
    Inventor: Hiroshi Kanki