Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >
Match Document Document Title
7603857 Exhaust heat recovery apparatus  
An exhaust heat recovery apparatus includes a first piston; a second piston; a first cylinder in which the first piston reciprocates; a second cylinder in which the second piston reciprocates; and...
7600464 Multi-piece piston for a free piston machine  
The concentricity and coaxiality of a central bore through a piston for a free piston Stirling machine is improved with a piston that has a sleeve with a core constructed from at least two,...
7584613 Thermal engine utilizing isothermal piston timing for automatic, self-regulating, speed control  
A method and apparatus for converting thermal energy to mechanical energy. Operating on a thermodynamic cycle of isentropic compression, isothermal expansion, isentropic expansion and finally...
7584612 Linear free piston Stirling machine  
A linear free piston Stirling machine having an overstroke prevention mechanism for the power piston. A resilient member is fixed to the casing which contacts the power piston 4 when its...
7497085 Refrigerating machine using the stirling cycle  
A cooler machine using the Stirling cycle and comprising: at least one compressor with a compressor piston movable in a compression cyclinder; a regenerator with a regenerator piston movable in a...
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...
7313916 Method and apparatus for generating power by combustion of vaporized fuel  
An apparatus for producing power from a source of liquid fuel. The apparatus includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet...
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...
7257949 Stirling engine  
Through stroke control whereby the stroke of a piston is detected and controlled to be equal to a target stroke, the piston is prevented from colliding with a displacer, and the refrigerating...
7200994 Free piston stirling engine control  
A control system for a Stirling engine including the use of a synchronous power converter (“SPC”) which is connected to the terminals of the alternator in a linear alternator/FPSE power system....
7171810 Stirling engine with hydraulic output  
A heat engine has a region within which a working fluid travels and an hydraulic fluid provided in a reservoir and the output from the heat engine drives the movement of the hydraulic fluid.
7168248 Stirling engine  
A Stirling engine, wherein when a linear motor reciprocatingly move a piston in a cylinder, a displacer also reciprocatingly moves in the cylinder storing the displacer. By this, working mixture...
7111460 Metering fuel pump  
A device and method for controlling the flow of a gaseous fuel from a fuel supply to a pressurized combustion chamber. A fuel pump is included in the gas train from supply to chamber. The fuel pump...
7104055 Pressure vibration generator  
In the pressure oscillation generator 1 , self-excited vibration is generated in a work transfer tube 30 by heating a heat input section 22 and also a resonator 50 is resonated, and when a...
7080509 System for obtaining rotational energy from ambient forces  
The intended purpose of my invention is to create a point of origin in system from which driving thrusts could evolve. In this system, vacuum can be developed with less force than it naturally is...
7067933 Waste oil electrical generation system  
An improved electrical generation system utilizing environmentally hazardous waste oils as a combustible fuel. More particularly, a system to generate electrical power using a Stirling-cycle engine...
7062921 Multi-stage thermoacoustic device  
A multi-stage thermoacoustic device includes a resonance tube mounted therein a plurality of stacks and a plurality of heat exchangers interlaid with each other adjacent to a second end of the...
7043909 Beta type stirling cycle device  
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...
7017344 Machine spring displacer for Stirling cycle machines  
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...
7013639 Heat differential power system  
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...
7007469 Dual shell Stirling engine with gas backup  
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...
7000390 Stirling cycle engine or heat pump with improved heat exchanger  
A Stirling cycle machine heat exchanger and a method for making the heat exchanger including, forming an annular ring of a solid heat conductive mass, the annular ring having a central axis and...
6990810 Threaded sealing flange for use in an external combustion engine and method of sealing a pressure vessel  
A pressure vessel for containing a mechanical device operable to convert heat to mechanical or electrical power, comprising: a high temperature section, the high temperature section having a first...
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...
6933629 Active balance system and vibration balanced machine  
An active balance system is provided for counterbalancing vibrations of an axially reciprocating machine. The balance system includes a support member, a flexure assembly, a counterbalance mass,...
6920967 Controller for reducing excessive amplitude of oscillation of free piston  
An apparatus for detecting and reducing excessive amplitude of oscillation of a free piston slidably mounted in a housing. The housing has a vibration absorber, including a mass mounted through a...
6910332 Thermoacoustic engine-generator  
A thermoacoustic engine-generator that converts waste heat into electrical power. Thermal energy is converted to useful work via temperature-pressure amplification of periodic acoustic traveling...
6907730 Displacer and seal assembly for stirling cycle machines  
The invention can prevent gas leakage and reduce friction force while relaxing tolerance for manufacturing a displacer and the like for Stirling cycle machines. Gas leakage between the outer...
6901845 Porous restrictor for gas bearing  
A gas restrictor particularly usrful for applicatio in gas bearing as used, for example, in free-piston Striling cycle machinery. Porous strip material together with a backing plate and orifice...
6901755 Piston position drift control for free-piston device  
A piston position drift control for a free-piston device. The control includes a passage connecting internal volumes of the device, the passage being substantially shorter than an acoustic...
6880452 Spring standoff for a reciprocating device  
A spring standoff for a reciprocating device, the standoff having a generally cylindrical body and having a window in a circumferential surface of the body, and a flange at each end of the body,...
6880335 Stirling cycle cryocooler with improved magnet ring assembly and gas bearings  
A piston assembly for use in a motor comprises a cylinder having a bore, an electrically conductive piston reciprocally disposed within the cylinder bore, a gas cavity formed within the piston, and...
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...
6874321 Stirling engine  
A free-piston type Stirling engine used for producing cold heat with the vibration center position of a piston accurately kept. A first space is formed on one side of a piston, and a second space...
6865887 Stirling engine  
A Stirling engine comprising: a displacer unit having displacer cylinders, displacers slidably arranged in the chambers of the displacer cylinders, expansion chambers and contraction...
6857267 Stirling cycle engine  
The Stirling cycle engine includes: a casing having a cylindrical shape; a cylinder for sidably inserting a displacer and a piston into a part adjacent to one end and another part adjacent to an...
6843057 Stirling engine and actuator  
A Stirling engine comprising a casing, a displacer arranged in the casing so as to slide, an expansion chamber and an operation chamber into which, and from which, an operation gas flows with the...
6841900 Reciprocating device and linear suspension  
In a reciprocating device having a moving element, a stator and a flexing suspension for coupling the moving element and stator and for maintaining the moving element on axis, the flexing...
6796123 Uncoupled, thermal-compressor, gas-turbine engine  
The invention is for a continuous-combustion, closed-cycle, gas turbine engine with a regenerator and a displacer. It has embodiments that remove heater and cooler interior volumes during gas...
6725670 Thermoacoustic device  
A thermocoustic device includes a housing with a thermal core supported in the housing and having a first and a second surface. The thermal core includes a first heat exchanger defining the first...
6715313 Heat pump-driven external combustion engine  
There are many heat sources on the earth, and those heat sources radiate heat continuously. Though some of such heat sources are utilized with heat exchange technologies now, they can't deliver...
6715285 Stirling engine with high pressure fluid heat exchanger  
A Stirling engine includes a heat exchanger having helical and axial fins forming an orthogonal grillage on either side of a pressure resisting wall, and an outer reinforcing sleeve about the...
6711905 Acoustically isolated heat exchanger for thermoacoustic engine  
A thermoacoustic engine for acoustically driving a thermal exchange includes a hollow drive tube, a heat transfer medium, an acoustic resonator, and a first thermal element. The hollow drive tube...
6701721 Stirling engine driven heat pump with fluid interconnection  
A heat pumping machine, such as used for home heating and cooling, has a free piston Stirling engine driving a vapor compression heat pump. The engine is mechanically linked to the compressor...
6701708 Moveable regenerator for stirling engines  
A Stirling cycle engine comprises a substantially sealed engine block that defines a working fluid space, a hot path and a cold path. A heat source and a heat sink are configured to keep the hot...
6698200 Efficiency thermodynamic engine  
A novel thermodynamic engines including a piston operating on a compressible fluid in a thermally insulated volume, which also includes a movable displacer which selectively divides the internal...
6694749 Rotary valve  
A multiple port rotary valve for flow switching comprises a rotor ( 2 ), a stator ( 7 ), a compressor supply ( 8 ) and a compressor return ( 6 ). Gas is supplied via the compressor supply...
RE38337 Centering system for free piston machine  
A centering apparatus for a free piston Stirling engine including a pressure regulator valve which connects a passageway between the work space and the back space when both (a) the average pressure...
6637211 Circulating heat exchangers for oscillating wave engines and refrigerators  
An oscillating-wave engine or refrigerator having a regenerator or a stack in which oscillating flow of a working gas occurs in a direction defined by an axis of a trunk of the engine or...
6629418 Two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes  
Disclosed are two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes.
Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >