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Class 60/517 - Unit of mass is a gas which is heated or cooled in one of a plurality of constantly communicating expansible chambers and freely transferable therebetween


Subclass of Class 60 - Power plants
Definition: Apparatus in which the unit or working medium is a gas which
No. of patents: 420
Last issue date: 11/01/2011


1                      
NumberTitleIssue Date
8046993Micro generator system
The present invention relates to a micro generator system which uses temperature difference (about 5˜10° C.) between skin and outside environment to allow an engine to drive microfluid flow as well as pass nanomagnetic particles within microfluid through coli to p...
11/01/2011
8015808Power plant with energy recovery from fuel storage
Power plant systems and processes are described that enable recovery of at least a portion of the fuel storage energy associated with a storage system for supplying fuel to the power plant systems. A first embodiment of an energy-recovery power plant system includes...
09/13/2011
8011183Resonant stator balancing of free piston machine coupled to linear motor or alternator
A beta-type free-piston Stirling cycle engine or cooler is drivingly coupled to a linear alternator or linear motor and has an improved balancing system to minimize vibration without the need for a separate vibration balancing unit. The stator of the linear motor or...
09/06/2011
7908856In-line stirling energy system
A high efficiency generator is provided using a Stirling engine to amplify an acoustic wave by heating the gas in the engine in a forward mode. The engine is coupled to an alternator to convert heat input to the engine into electricity. A plurality of the engines an...
03/22/2011
78911844-cycle stirling machine with two double-piston units
A 4-cycle Stirling engine is for carrying out thermal power processes or heat power and cold and heat pumping processes with two double piston units which move with a phase offset to each other. ...
02/22/2011
7866153Displacer piston assembly
A split displacer piston assembly (1) in conjunction with a Stirling engine is disclosed. Said assembly comprises of two main parts, displacer dome (8) and displacer base (9). Within the displacer dome there are several heat shields (10)....
01/11/2011
7836691Heat engine
A high-temperature side power piston (37) and a low-temperature side power piston (39), respectively demarcating a high-temperature space (45) and a low-temperature space (47), brings about volumetric changes of working gases in each of t...
11/23/2010
7832209Miniaturised device that can operate as an engine or a cooler according to a stirling thermodynamic cycle
Miniaturised device, which can operate as an engine or a cooler according to a Stirling thermodynamic cycle, comprising an expansion chamber and a compression chamber, which are interconnected by means of a regenerator enabling the working fluid to flow through from...
11/16/2010
7827789Linear free piston stirling machine
A linear-free piston Stirling machine comprising a displacer and a power piston. A rod is attached at one end to the displacer, extends through the power piston and is mounted to the casing at its opposite end via a spring. A resilient stopper at the opposite end is...
11/09/2010
7810325Self-pressurizing Stirling engine
A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal cont...
10/12/2010
7712310Double power Stirling engine and coaxial Stirling power mechanism
A Stirling engine includes a piston seat, a displacer arranged in the piston seat, a piston seat, and a push rod. Meanwhile, a piston tube is arranged on the piston seat and an airtight piston is arranged in the piston tube. Moreover, one end of the push rod is conn...
05/11/2010
7707830Pressurized vapor cycle liquid distillation
Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer co...
05/04/2010
7694514Direct contact thermal exchange heat engine or heat pump
Systems and methods for operating a thermodynamic engine are disclosed. The systems and methods may effect cyclic motion of a working fluid between hot and cold regions of a thermodynamic engine and inject a dispersible material into the working fluid at the hot or ...
04/13/2010
7685818Connection of a free-piston stirling machine and a load or prime mover permitting differing amplitudes of reciprocation
The reciprocatable power piston of a free-piston Stirling machine is drivingly linked to a reciprocatable component body of an associated apparatus by at least one spring with no rigid connection linking the piston to the component body. The spring drive linkage all...
03/30/2010
7650750Domestic combined heat and power assembly
A domestic combined heat and power assembly comprising a wall mountable frame (13), a Stirling engine module (40) with a Stirling engine (41), and a heat exchanger module (20) for the recovery of heat from the Stirling engine. The Stirlin...
01/26/2010
7650751Stirling engine
A Stirling engine is provided with a piston and a displacer. When the piston is made to reciprocate inside a cylinder by a linear motor, the displacer reciprocates inside a cylinder with a predetermined phase difference relative to the piston. In parts of the displa...
01/26/2010
7644581Stirling engine
A stirling engine includes a flow path which communicates a working space of the stirling engine and a crankcase of the stirling engine. An output of the stirling engine is controlled so that the output lowers when a pressure inside the working space is higher than ...
01/12/2010
7640739Method and device for using VOC as fuel for an engine
A device and method for producing energy from a dilute VOC gas stream. The device includes a concentrator that concentrates a dilute VOC gas stream into a concentrated VOC fuel. The concentrated VOC fuel is supplied to the fuel intake of an engine. The device is ope...
01/05/2010
7603857Exhaust 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 a heat exchanger. The heat exchanger includes a heater that is indepe...
10/20/2009
7603858Harmonic engine
A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at...
10/20/2009
7587896Cooled infrared sensor assembly with compact configuration
An integrated sensor assembly (10) includes a gas compression unit (104) having a first longitudinal axis (308) and a gas expansion unit (112) having a second longitudinal axis (366) and the gas expansion unit is disposed with its ...
09/15/2009
7584612Linear 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 displacement exceeds a predetermined level. ...
09/08/2009
7571606Stirling engine
A Stirling engine A has a pressure container 1 filled with a working gas, a cylinder 2 secured inside the pressure container 1, a power piston 3 provided inside the cylinder 2, and a displacer 4a provided inside the c...
08/11/2009
7490468Operation of an engine
This invention relates to a method of operating an engine and, particularly to a method of determining the pressure of a working gas within a Stirling engine of a domestic combined heat and power unit relative to a pre-defined pressure. The present invention provide...
02/17/2009
7490469Dual-function stirling engine system
A dual-function system comprising a heat source and a Stirling engine movably secured to a motorized machine, where the Stirling engine is positionable to operate in a refrigeration mode and in a power generation mode. The Stirling engine is configured to transfer h...
02/17/2009
7484366Multistage stirling engine
A multistage Stirling engine 1 mounted on an automobile provided with an internal combustion engine has two cylinders 4 and 5. Displacer pistons 6 and 7 and power pistons 8 and 9 are slidably fitted in the two cylinde...
02/03/2009
7395666Thermal hydro-machine on hot gas with recirculation
A thermal hydro-machine on hot gas with recirculation (FIGS. 3, 4 and 5) belongs to the group of multi-cylinder piston rotational machines for converting the heat into the mechanical work. The heat is conducted to on the outer side of one part of rotat...
07/08/2008
7377107Cogeneration 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
7368039Distiller employing cyclical evaporation-surface wetting
A distillation unit (10) employs a rotary heat exchanger (32) forming a multiplicity of evaporation chambers (56) into which a liquid to be purified is sprayed for evaporation. Spray arms (58) spray at a steady rate into all of the evapor...
05/06/2008
7363760Thermodynamic free walking beam engine
A free walking beam that uses the principles of the Stirling cycle to drive a piston reciprocatatively through a housing cylinder to pivot alternately around a pair of parallel power output shafts to provide a high torque means of generating mechanical energy. The h...
04/29/2008
7340879Locally powered water distillation system
A system for distributed utilities including electrical power and water. A generation device is provided for converting an available resource to a desired utility; the resource may be water, in which case the generator is a purifier for purifying untreated water, or...
03/11/2008
7329959Micro 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
7325399Coolant 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
7320218Method 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
7313916Method 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 end, the inlet end in fluid communication with the source of liquid f...
01/01/2008
7310945Work-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
7308787Thermal 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
7281383Reciprocating four-stroke Brayton refrigerator or heat engine
A thermal machine that can function as either a refrigerator or an external combustion heat engine is disclosed. A working gas undergoes four thermodynamic processes that comprise a Brayton cycle. Two of these processes, adiabatic compression and adiabatic expansion...
10/16/2007
7279800Waste oil electrical generation systems
An on-site electrical power generation system utilizing environmentally hazardous waste oils as a combustible fuel. The disclosed invention utilizes environmentally hazardous waste oils generated by one or more on-site processes, such as, for example, by the mainten...
10/09/2007
7272932System and method of use of expansion engine to increase overall fuel efficiency
A system of increasing overall fuel efficiency of a facility including a gas expansion engine for receiving a supply of pressurized gas of a first pressure and first temperature and outputting a tail gas of a second lower temperature and lower pressure. The expansio...
09/25/2007
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