Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7377107 | Cogeneration system A Stirling engine-equipped cogeneration system is capable of utilizing thermal energy, without waste, and of offering high thermal usage efficiency at every stage of the thermal energy utilization process. The system includes a combustion chamber (11), a burn... | 05/27/2008 |
| 7347057 | Control of dual-heated absorption heat-transfer machines An absorption, heat-transfer system with an operationally interconnected generator, absorber, condenser, and evaporator; at least two separate heat sources for heating the generator; and a controller for controlling the heat sources. The controller, e.g., a programm... | 03/25/2008 |
| 7329959 | Micro power generator and apparatus for producing reciprocating movement There is provided a micro power generator enhanced in efficiency and power generation output, and having an increased temperature range for operation. The micro power generator comprises: a high-temperature heat source; a low-temperature heat source; an enclosed bod... | 02/12/2008 |
| 7325399 | Coolant penetrating cold-end pressure vessel An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by h... | 02/05/2008 |
| 7320218 | Method and system for generation of power using stirling engine principles A heat engine enclosing a chamber in housing has two zones maintained at different temperatures. The first zone receives heat energy from an external power source. The second zone is connected to the hot zone by two conduits, such that a fluid (e.g., air, water, or ... | 01/22/2008 |
| 7310945 | Work-space pressure regulator A device and method for equalizing the pressure between work-space and crankcase in a pressurized engine, such as a Stirling engine. The device consists of a two-way valve connected between the work-space and the crankcase. The valve is connected to the work-space w... | 12/25/2007 |
| 7308787 | Thermal improvements for an external combustion engine An external combustion engine having an exhaust flow diverter for directing the flow of an exhaust gas. The external combustion engine has a heater head having a plurality of heater tubes through which a working fluid is heated by conduction. The exhaust flow divert... | 12/18/2007 |
| 7284372 | Method and apparatus for converting thermal energy to mechanical energy A method and apparatus for converting thermal energy to mechanical energy which can use a wide range of fuels and perform with a high efficiency. Operating on a little utilized thermodynamic cycle of isentropic compression, isothermal expansion, isentropic expansion... | 10/23/2007 |
| 7255929 | Use of spray coatings to achieve non-uniform seal clearances in turbomachinery The invention provides spray coatings to achieve circumferentially non-uniform seal clearances in turbomachines. In steam and gas turbines it is desirable to assemble the machines with elliptical seal clearances to compensate for expected casing distortion, rotordyn... | 08/14/2007 |
| 7207658 | Printhead integrated circuit with electromechanical actuators incorporating heatsinks A printhead integrated circuit that has an array of nozzles and corresponding micro-electromechanical actuators for ejecting ink there through. Each of the micro-electromechanical actuators having an activation arm that is configured for thermal expansion by resisti... | 04/24/2007 |
| 7194858 | Hydrogen equalization system for double-acting stirling engine A working gas pressure equalization system for a multiple-cylinder, double-acting hot gas engine such as a Stirling engine of the type having a plurality of pistons reciprocatable within the cylinders defining a plurality of generally isolated cycle volumes of a wor... | 03/27/2007 |
| 7185492 | Stirling engine having slidable piston The present invention is a rotary engine having a rotor and a slidable piston that are contained within a stator. ... | 03/06/2007 |
| 7178324 | External combustion engine An external combustion engine comprises a compressor assembly, a heater assembly, an expander assembly, a cooler assembly, and auxiliary systems. The preferred embodiment of this invention uses fossil fuel as the main source of energy, and water substance for the wo... | 02/20/2007 |
| 7171811 | Multiple-cylinder, free-piston, alpha configured stirling engines and heat pumps with stepped pistons An improved, free-piston, Stirling machine having at least three pistons series connected in an alpha Stirling configuration. Each cylinder is stepped so that it has a relatively larger diameter interior wall and a coaxial, relatively smaller diameter interior wall.... | 02/06/2007 |
| 7152404 | Power unit with reciprocating linear movement based on stirling motor, and method used in said power plant The invention concerns a reciprocating linear movement power unit. The powering element consists of a Stirling heat engine and the generator consists of a piston (1) and displacers (2,3) of the heat engine acting as rotors and fixed electromagnetic ele... | 12/26/2006 |
| 7134279 | Double acting thermodynamically resonant free-piston multicylinder stirling system and method Present implementations provide an approach that allows for a double-acting, multi-cylinder, thermodynamically resonant, alpha configuration free-piston Stirling system. The system includes overstroke preventers that control extent of piston travel to prevent undesi... | 11/14/2006 |
| 7114334 | Impingement heat exchanger for stirling cycle machines Impingement style heat exchanger through which significant heat transfer improvements can be obtained. The heat exchanger of the present invention operates such that the bulk of heat transfer between the heat source and the working fluid occurs during the portion of... | 10/03/2006 |
| 7084518 | Method and apparatus for solar power conversion A solar power conversion system using a plurality of engines to convert solar energy to electrical energy. The plurality of engines are supported adjacent to a housing having a single thermal cavity. The cavity is provided with solar energy from a solar collector. E... | 08/01/2006 |
| 7076941 | Externally heated engine An externally heated engine is provided which has at least two pistons. The first piston has a first side (working side) and a second side opposite the first side. The first side of the first piston and the first cylinder define a first working chamber containing wo... | 07/18/2006 |
| 7062913 | Heat engine A heat engine (10) achieves operational efficiencies by: 1) recovering waste heat from heat engine expander (14) to preheat heat-engine working fluid, 2) using super-heated working fluid from compressor (402) to pre-heat heat-engine working flui... | 06/20/2006 |
| 7026722 | Method and apparatus for solar power conversion A solar power conversion system using a plurality of engines to convert solar energy to electrical energy. The plurality of engines are supported adjacent to a housing having a single thermal cavity. The cavity is provided with solar energy from a solar collector. E... | 04/11/2006 |
| 7021554 | Heating appliance A domestic combined heat and power system comprising a Stirling engine (1) and water heater in the form of a supplementary burner (17). The exhaust gas from the Stirling engine is used to preheat combustible gas entering the Stirling engine and subsequ... | 04/04/2006 |
| 7013640 | Stirling engine assembly A seal between the head of a Stirling engine (1) and surrounding burner assembly (2). The seal comprises an annular trough (11) attached to one component and filled with a viscous liquid (14), and an annular blade attached to the other co... | 03/21/2006 |
| 6979911 | Method and apparatus for solar power conversion A solar power conversion system using a plurality of engines to convert solar energy to electrical energy. The plurality of engines are supported adjacent to a housing having a single thermal cavity. The cavity is provided with solar energy from a solar collector. E... | 12/27/2005 |
| 6978612 | Utility device having hydraulic circuit for multi-function valve A utility vehicle or other utility device includes a hydraulic circuit that enhances operative capabilities of utility mechanisms with multiple hydraulic functionality. In some embodiments, multiple functionality can include powering of one or more hydraulic motor(s... | 12/27/2005 |
| 6968688 | Two-cycle hot-gas engine A two-cycle hot-gas engine comprising an expansion piston in a heatable cylinder member and a compression piston in a coolable cylinder member. The expansion piston and the compression piston are disposed along a common axis. ... | 11/29/2005 |
| 6945044 | Dual cycle hot gas engine comprising two movable parts The invention relates to a dual cycle hot gas engine comprising pistons which are movable inside one another, a dual external piston being arranged for axial movement inside a basic cylinder member, and a dual internal piston being arranged for axial movement inside... | 09/20/2005 |
| 6945043 | Stirling engine, and stirling refrigerator A Stirling engine comprises a first porous body having a large hole diameter, a second porous body having a small hole diameter and a ring for fixing the first porous body and the second porous body in a pressurization chamber inside a gas outlet closer to the press... | 09/20/2005 |
| 6931848 | Stirling engine having platelet heat exchanging elements The present invention provides heat exchanging elements for use in Stirling engines. According to the present invention, the heat exchanging elements are made from muliple platelets that are stacked and joined together. The use of platelets to make heat exchanging e... | 08/23/2005 |
| 6910331 | Stirling engine To provide a Stirling engine and a control unit for a Stirling engine capable of disposing a displacer unit and a power cylinder unit separately from each other, thereby increasing the degree of freedom of layout thereof. A displacer unit and a power cylinder unit o... | 06/28/2005 |
| 6877314 | Stirling motor and heat pump Stirling engine which may be used as a heat pump, which consists of a hot half and a cold half. Both halves are connected by two lines which constitute a counterflow heat exahnger or in which a counterflow heat exchanger is mounted. Moreover, a mutual shaft, to whic... | 04/12/2005 |
| 6779341 | Method and apparatus for generating kinetic energy from thermal energy In a method and apparatus for generating kinetic energy, thermal energy is applied to a cylinder body of a first pneumatic cylinder to result in an expansion stroke of the first pneumatic cylinder and in rotation of a flywheel assembly that is coupled to the first p... | 08/24/2004 |
| 6729131 | Stirling engine A Stirling engine (10, 50, 72) comprising at least one working piston (52) and at least one displacement piston (4), wherein for a power control by the transmission of the linear movement of a drive part (2) into the linear movement of a ... | 05/04/2004 |
| 6701709 | Cylindrical cam stirling engine drive A Stirling engine includes a grooved cam drive mechanism with followers having a pair of longitudinally displaced bearings. One roller bearing is adapted to ride along an upper surface of the cam groove, while the other roller bearing is adapted to ride a... | 03/09/2004 |
| 6487858 | Method and apparatus for diminishing the consumption of fuel and converting reciprocal piston motion into rotary motion An apparatus for converting between reciprocal piston motion and rotary shaft motion. A unique H-shaped piston rod configuration and corresponding cylinder assembly for improving the efficiency of internal and external combustion engines. A Stirling engin... | 12/03/2002 |
| 6253550 | Folded guide link stirling engine A folded linkage for coupling a crankshaft and a piston undergoing reciprocating linear motion along a longitudinal axis. The folded linkage has a guide link with a first end coupled to the piston. A connecting rod couples the distal end of the guide link... | 07/03/2001 |
| 6195992 | Stirling cycle engine A Stirling cycle engine having two chambers (formed by 12-14, or 12, 15 and 16) containing a working fluid and rotatable rotor disks (10, 11) coupled to a common output power shaft (3). Each chamber has a hot zone and a cold zone, and a passage (23) leads... | 03/06/2001 |
| 6065289 | Fluid displacement apparatus and method The present invention relates generally to fluid displacement apparatuses and methods. The inventive apparatus comprises: a housing having an interior space; a crankpin positionable in the interior space; and a plurality of articulated displacement member... | 05/23/2000 |
| 6029449 | Heat and cold-generating machine A hot and cold engine operating based on a regenerative gas cyclical process, with at least two pistons (2, 3), which separate at least three processing chambers (4, 6, 7) with an in-line arrangement of respectively at least one heat exchanger (13, 15) an... | 02/29/2000 |
| 5916140 | Hydraulic engine powered by introduction and removal of heat from a working fluid A thermal hydraulic engine including a frame. A working fluid changes volume with changes in temperature. A working fluid container houses the working fluid. A cylinder secured to the frame includes an interior space. The cylinder also includes a passage ... | 06/29/1999 |
