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 Patents (Class 60/517)
  • Patent number: 11408658
    Abstract: A refrigeration unit includes an evaporator circulating a flow of refrigerant therethrough to cool a flow of compartment air flowing over the evaporator, a compressor in fluid communication with the evaporator to compress the flow of refrigerant, an engine operably connected to the compressor to drive operation of the compressor, an expansion device in fluid communication with the flow of refrigerant, and a controller operably connected to at least the engine and the expansion device. The controller is configured to determine an available power to drive the compressor, determine a compressor discharge pressure upper limit based on the available power, compare the compressor discharge pressure upper limit to a requested compressor discharge pressure, and initiate adjustment of the expansion device such that an actual compressor discharge pressure is the lesser of the requested compressor discharge pressure or the compressor discharge pressure upper limit.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: August 9, 2022
    Inventor: Jian Sun
  • Patent number: 11384963
    Abstract: A GM cryocooler includes a displacer that is reciprocatable in an axial direction; a displacer cylinder that houses the displacer; a drive piston that is coupled to the displacer so as to drive the displacer in the axial direction; and a piston cylinder that houses the drive piston and that includes a drive chamber of which a pressure is controlled to drive the drive piston, and a gas spring chamber which is airtightly formed with respect to the displacer cylinder and is partitioned from the drive chamber by the drive piston.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 12, 2022
    Inventors: Mingyao Xu, Qian Bao, Takaaki Morie
  • Patent number: 11261888
    Abstract: The pump has a body having a heat sink on the body underside. An extension rises from the body. A guide is provided for a piston, which together move up and down relative to the body and extension. The pump is within a tank filled with heating liquid. The heating liquid is separated (directly or indirectly) from a gas cavity with a bladder. The pump can have a coolant cavity partially bordered by a bladder that separates the heating liquid from the gas. A coolant then flows through the cavity over the top of the bladder keeping it cool and preventing bladder degradation. A high temperature liquid system maintains the temperature of the heating liquid. A coolant system maintains the temperature of the coolant. A pressure equalization system maintains balance in pressure between the heating liquid and coolant. A steam system is provided as is a control system.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 1, 2022
    Inventor: Brian Lee Davis
  • Patent number: 11261823
    Abstract: A Stirling engine includes a working cylinder defining a working cylinder chamber with a reciprocatingly-arranged working piston and a heater fluidly communicating with the working cylinder chamber through a working gas channel. The engine includes a first heat exchanger extending from a head of a displacer cylinder into the heater, a second heat exchanger formed by a regenerator arranged outside the heater, and a third heat exchanger formed by a cooler arranged between the regenerator and the working cylinder chamber. At any point along the working gas channel, as seen cross-wise to an assumed working gas flow direction through the working gas channel, the cross section area of the working gas channel defined by the first, second and third heat exchangers is within the range of the medium cross section area of the working gas channel +/?10%.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 1, 2022
    Assignee: Maston AB
    Inventor: Stefan MastonstrĂ¥le
  • Patent number: 11181072
    Abstract: A monolithic combustor body may provide multi-stage combustion. A combustor body may include a combustion chamber body and a plurality of heating walls that include a heat sink. The combustion chamber body may be disposed annularly about a longitudinal axis and defining a combustion chamber. The plurality of heating walls may include heat sink. The plurality of heating walls may occupy a radially or concentrically outward position relative to the combustion chamber and may define a corresponding plurality of combustion-gas pathways fluidly communicating with at least a proximal portion of the combustion chamber.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 23, 2021
    Assignee: General Electric Company
    Inventors: Joshua Tyler Mook, Kevin Michael VandeVoorde, Aigbedion Akwara, Michael Robert Notarnicola, Jason Joseph Bellardi, Mohammed El Hacin Sennoun, Mohamed Osama, Zachary William Nagel
  • Patent number: 11143140
    Abstract: A Stirling engine comprising: a crank case (1) with a crank shaft (2) arranged therein, a displacer cylinder (3) with a reciprocatingly arranged displacer piston (4) therein, said displacer piston (4) being connected to said crank shaft (2) via a connecting rod (5) extending through a first end of said displacer cylinder (3), and wherein the displacer cylinder (3) defines a hot chamber (6) and a cool chamber (7) separated by the displacer piston (4), a working cylinder (8) defining a working cylinder chamber (11) with a reciprocatingly arranged working piston (9) therein, said working piston (9) being connected to said crank shaft (2) via a connecting rod (10) extending through a first end of the working cylinder (8), a heater device (14), arranged at a second end of said displacer cylinder (3) opposite to said first end and configured to heat a working gas which is present in the hot chamber (6) of the displacer cylinder (3) and in fluid communication with the working cylinder chamber (11) through a working
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 12, 2021
    Assignee: Maston AB
    Inventor: Stefan MastonstrĂ¥le
  • Patent number: 11008959
    Abstract: A system may be used for determining a parameter relating to a piston in an engine. The parameter may be the piston position, speed, etc., which may be determined at a reference point in a cylinder. The system may be controlled based on the determined parameter. The engine may be a linear reciprocating engine, opposed piston engine, etc. The system may include a first sensor provided on a base connected to the engine, and a second sensor provided on the base. The first sensor may be configured to generate a signal in response to a component coupled to the piston being in a region of the first sensor. The second sensor may be configured to generate a signal in response to a component coupled to the piston interacting with the second sensor. The system may include an energy transformer configured to transform motion of the engine to electrical power.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 18, 2021
    Assignee: Aquarius Engines Central Europe Sp. z o.o.
    Inventor: Shaul Haim Yaakoby
  • Patent number: 10837356
    Abstract: The present invention relates to a free-piston linear apparatus, comprising a piston arranged within a cylinder, said piston being configured for linear displacement within the cylinder; a combustion chamber arranged on one side of said piston and a gas expansion chamber arranged on an opposite side of said piston, wherein said piston is drivable under the action of a fuel medium expanding in the combustion chamber; an exhaust vent arranged to release exhaust gas from the combustion chamber to an exhaust system, wherein said exhaust system comprises a heat exchanger configured to transfer residual heat from said exhaust gas to said gas expansion chamber in order to heat the gas expansion chamber; and wherein said gas expansion chamber comprises at least one gas port for injecting and/or releasing gas into/from the gas expansion chamber.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: November 17, 2020
    Inventor: Kujtim Hyseni
  • Patent number: 10794325
    Abstract: A heat engine with a dynamically controllable hydraulic outlet driven by a high-pressure pump and a gas turbine that include a pressure vessel (1), a lid (1.1), a movable partition (2), a gas working space (4), a liquid working space (5), and a recuperator (7), wherein a sealing (1.4) is disposed between the pressure vessel (1) and the lid (1.1), wherein in the inner space of the pressure vessel (1) the partition (2) is movably attached to a folded membrane (3) which is attached to the lid (1.1), wherein the partition (2) divides the inner space of the pressure vessel (1) into the gas working space (4) and the liquid working space (5), and shaped parts (1.8) are arranged within the pressure vessel, which define an external gas channel (10) which is led between a shell of the pressure vessel (1) and the shaped parts.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 6, 2020
    Inventor: Jiri Mlcek
  • Patent number: 10767538
    Abstract: An energy conversion device includes a first acoustic wave generator, a second acoustic wave generator, and an output unit which are provided in a pipe member. The first acoustic wave generator has a thermal energy generator configured to generate thermal energy from electric energy, and converts the thermal energy generated by the thermal energy generator into acoustic energy to generate acoustic wave in working gas by a self-excited thermo acoustic vibration. The second acoustic wave generator converts thermal energy supplied from a heat supply source into acoustic energy and generates acoustic wave in working gas by a self-excited thermo acoustic vibration. The output unit converts the acoustic energy of the acoustic waves from the first acoustic wave generator and the second acoustic wave generator into cold energy to output.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 8, 2020
    Inventors: Takuya Fuse, Motohiko Ueda, Yasumasa Hagiwara, Yuichi Ohno, Yukikatsu Ozaki, Koichi Yanagisawa
  • Patent number: 10739043
    Abstract: In a conveying device, a belt conveyer is equipped with a conveying portion that conveys an object from an upstream region to a downstream region. A heat source heats the conveyed object. A cooling portion is located downstream of a terminal end of the belt conveyor and cools the object. A first thermoacoustic cooling device cools the cooling portion. A first prime mover generates acoustic waves from heat transmitted from the first heat source. A first receiver generates, from the acoustic waves, cooling heat corresponding to a cooling temperature that is lower than a temperature of the heat source.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 11, 2020
    Inventors: Toshiyuki Saito, Ryouichi Takahata, Tomoyuki Takei, Masashi Hattori
  • Patent number: 10704493
    Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: July 7, 2020
    Assignee: BOOSTHEAT
    Inventors: Jean-Marc Joffroy, Martin Bidar, Luc Dando
  • Patent number: 10507934
    Abstract: A thermal management system for an aircraft is provided that includes thermo-acoustic engines that remove and capture waste heat from the aircraft engines, heat pumps powered by the acoustic waves generated from the waste heat that remove and capture electrical component waste heat from electrical components in the aircraft, and hollow tubes disposed in the aircraft configured to propagate mechanical energy to locations throughout the aircraft and to transfer the electrical component waste heat back to the aircraft engines to reduce overall aircraft mass and improve propulsive efficiency.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: December 17, 2019
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventor: Rodger W. Dyson, Jr.
  • Patent number: 10495355
    Abstract: A thermoacoustic electric generator system includes: a turbine including a turbine blade provided in an inside of a branched tube in a tube component and rotating by thermoacoustic oscillation of working gas in a thermoacoustic engine, and a turbine rotational shaft configured to be coupled to the turbine blade, penetrate a tube wall of the branched tube, and extend from the inside to an outside thereof; and a generator provided on the outside of the branched tube in the tube component, coupled to the turbine rotational shaft of the turbine, and converting rotational energy of the turbine blade to electric energy.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 3, 2019
    Inventor: Noriyuki Fukaya
  • Patent number: 10004872
    Abstract: A PEP module is provided for producing and transmitting oscillations of expiratory air to the lungs and airways of a user to thereby loosen and mobilize mucus obstructions. The PEP module includes an external device housing having a mouthpiece at a first end thereof and a cover at an opposite second end thereof configured for providing resistance to the airflow of the expiratory air. The PEP module further includes a valve assembly contained within the external housing and disposed medially between the mouthpiece and the cover. The valve assembly includes a valve housing and a valve moveably mounted on the valve housing. The valve rapidly and repeatedly oscillates relative to the valve housing as the user exhales to produce oscillations in the expiratory air that are transmitted to the lungs and airways of the user to loosen and mobilize the mucus obstructions.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: June 26, 2018
    Assignee: D R Burton Healthcare, LLC
    Inventor: Zhenping Gao
  • Patent number: 9982625
    Abstract: A burner (1) comprises a front wall (2) with an exchanger opening (4) for the passage of a heat exchanger (14), a rear wall (5) with a fume discharge opening (7), a tubular side wall (8), a tubular diffuser wall (9) within the side wall (8), an annular distribution chamber (12) formed between the side wall (8), a combustion chamber (13) formed within the diffuser wall (9) and suitable for the insertion of the heat exchanger (14), wherein the rear wall (5) comprises a cooling interspace in flow communication with the gas supply line of the burner.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 29, 2018
    Assignee: Worgas Bruciatori S.r.l.
    Inventors: Antonio Acocella, Gabriele Gangale, Giulio Cenci
  • Patent number: 9966817
    Abstract: An improved electromechanical transducer is provided. In an embodiment, the transducer comprises at least two flux modules, each defining a magnetic circuit having a gap; an armature configured to move along a longitudinal axis passing through the gaps; and a gas containment structure laterally surrounding the armature, wherein: the at least two flux modules are provided outside the gas containment structure; and the armature comprises a reinforcing portion laterally outside of the gaps that is wider in a direction parallel to the flux in the gaps than at least one of the gaps.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 8, 2018
    Assignee: Oxford University Innovation Limited
    Inventor: Michael William Dadd
  • Patent number: 9845954
    Abstract: An object of the present invention is to realize a combustion control device that reduces, when a pressure within a mixer is rapidly increased at the time of ignition of the combustion control device, the transmission of the temporarily increased pressure to a pressure sensor, that brings the pressure sensor into a non-operated state and that thereby can continue combustion in the combustion control device. Hence, a combustion control device is provided that includes: a combustion chamber which has a heat dissipation disc on a front surface and within which a combustion room is formed; a burner which is attached to the combustion chamber; a mixer which mixes a gas supplied to the burner with air; and a pressure sensor which is connected to the mixer through a pressure passage, where a pressure propagation delay means which reduces transmission to the pressure sensor caused by a temporary pressure increase within the mixer is provided partway along the pressure passage.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: December 19, 2017
    Assignee: Shizuoka Seiki Co., LTD
    Inventor: Hiroaki Wakabayashi
  • Patent number: 9840983
    Abstract: A working cylinder is provided, comprising at least one disc-like displacer (120) rotatably supported in a cylindrical block (114), which displacer (120) is arranged between two annular flanges (110) extending radially inwards from said block (114) on each sides of said displacer (120) such that said displacer (120) will be arranged in parallel with said flanges (110) upon rotation, wherein at least one of said flanges (110) comprises a plurality of sections including a first section (112a) having a first temperature, a second section (112b) having a second temperature being lower than said first temperature, and two insulating sections (112c, 112d) completely preventing contact between said first section (112a) and said second section (112b), and wherein said displacer (120) comprises a cutout (122) for rotating a volume of working fluid across the sections (112), which cutout is dimensioned such that for every rotational position it does not overlap the first section (112a) and the second section (112b) at
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: December 12, 2017
    Inventor: Nils Karlberg
  • Patent number: 9790791
    Abstract: External combustion engine which comprises a first cylinder and a second cylinder, in which a first piston and a second piston are able to slide respectively. The first and second cylinder are fluidically connected with respect to each other for the passage of a heat-carrying fluid suitable to determine the cyclical movement of the first piston and the second piston. The external combustion engine also comprises a drive shaft rotating around an axis of rotation, and with which crank means are solidly associated, provided with at least a first pin and a second pin having pivoting axes parallel to each other, and also disposed distanced radially from the axis of rotation. The external combustion engine also comprises first and second kinematic connection means suitable to connect respectively the first pin and the second pin to the first piston and respectively to the second piston.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: October 17, 2017
    Inventor: Davide Gentile
  • Patent number: 9702319
    Abstract: In one example embodiment, there is provided a flowmeter system. The flowmeter system includes a high temperature transferring part that collects external heat energy to transfer the heat energy; a low temperature transferring part that transfers heat energy of an intake pipe; a stirling engine that produces a power based on a temperature difference between the heat energy transferred from the high temperature transferring part and the heat energy transferred from the low temperature transferring part; and a flowmeter that is supplied with the power produced by the stirling engine to measure a flow rate of the intake pipe.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: July 11, 2017
    Inventors: Jin Oh Kim, Ju Wan Kim
  • Patent number: 9624913
    Abstract: Provided is a consumer to industrial scale energy trigeneration process based microgrid combined cooling, heat and power. The present invention includes conversion, processing, extraction and/or storage systems for electrical, chemical and thermal energy. The invention provides a quintessential renewable energy ecosystem incorporating vital energy generation, thermal heating and cooling processes with integrated components installed to encompass a distributed renewable energy generation, energy storage and integrated automation system. The automation system of the invention provides the ability to view, monitor, analyze, control and interact with system components.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: April 18, 2017
    Inventor: Kevin Lee Friesth
  • Patent number: 9528467
    Abstract: Stirling cycle machines, including engines and coolers or heat pumps are described.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: December 27, 2016
    Assignee: Isis Innovation Limited
    Inventor: Michael William Dadd
  • Patent number: 9421478
    Abstract: This invention provides a cold trap using a Stirling refrigerator. A refrigerator includes a drive piston configured to drive a free piston so as to reciprocally move a working medium between a heat dissipation portion and a heat absorption portion, a vibration sensor configured to measure a vibration of a case, a dynamic vibration absorber configured to reduce the vibration of the case when the drive piston is driven, and a frequency adjustment device configured to adjust a driving frequency to reduce the vibration of the case when the drive piston is driven in a state in which the case is connected to a vacuum device.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 23, 2016
    Inventors: Atsuhiro Kuwajima, Kenji Kudo, Daisaku Takano
  • Patent number: 9395108
    Abstract: A cryogenic refrigerator includes a compressor that compresses a working gas; a displacer to which the working gas compressed by the compressor is supplied; a drive mechanism that includes a drive shaft and is configured to drive the displacer; a motor that drives the drive mechanism; a housing that accommodates the drive mechanism; a valve mechanism that adjusts a pressure of the working gas supplied to the displacer; a pipe that supplies the working gas from the compressor to the valve mechanism; and a branch pipe that branches out from the supply pipe and is connected to a space formed between the drive shaft and the housing.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: July 19, 2016
    Inventors: Takaaki Morie, Mingyao Xu
  • Patent number: 9334961
    Abstract: A cover is provided for a cylinder arrangement having at least one cylinder. The cover is suitable for sealingly covering a cylinder opening of the cylinder. At least one sensor unit for capturing a measurement variable within the cylinder is integrated in the cover.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: May 10, 2016
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Christian Huber, Tomas Seidl
  • Patent number: 9080673
    Abstract: An adjustable seal apparatus for mounting a mixing apparatus having a movable shaft in sealed engagement with a wall of a vessel and in a selected orientation with respect to the wall of the vessel. The adjustable seal apparatus includes a seal mechanism for creating a gas-tight seal between the shaft of the mixing apparatus and the wall of the vessel and an adjustable mounting mechanism for selectively positioning the shaft in a desired orientation.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 14, 2015
    Assignee: McNish Corporation
    Inventors: Daniel J. Schmitz, Arn W. Johnson, Richard L. Dornfeld
  • Publication number: 20150143806
    Abstract: Provided is a consumer to industrial scale renewable energy based quintuple-generation systems and energy storage facility. The present invention has both mobile and stationary embodiments. The present invention includes energy recovery, energy production, energy processing, pyrolysis, byproduct process utilization systems, separation process systems and handling and storage systems, as well as an open architecture for integration and development of additional processes, systems and applications. The system of the present invention primarily uses adaptive metrics, biometrics and thermal imaging sensory analysis (including additional input sensors for analysis) for monitoring and control with the utilization of an integrated artificial intelligence and automation control system, thus providing a balanced, environmentally-friendly ecosystem.
    Type: Application
    Filed: February 4, 2015
    Publication date: May 28, 2015
    Inventor: Kevin Lee Friesth
  • Patent number: 9021800
    Abstract: A heat exchanger and associated method are provided that may eliminate or reduce the need for an external mechanical or electrical power source to drive the fan by utilization, instead, of a Stirling engine. A heat exchanger includes a plurality of coils configured to carry a primary fluid. The heat exchanger also includes a fan including a plurality of fan blades configured to force a secondary fluid across the plurality of coils to facilitate heat transfer between the primary and secondary fluids. The heat exchanger also includes a Stirling engine operably connected to the fan and configured to cause rotation of the fan blades. A corresponding method is also provided.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 5, 2015
    Assignee: The Boeing Company
    Inventors: David W. Kwok, Jack W. Mauldin
  • Patent number: 9003787
    Abstract: An ECU is used for a Stirling engine that is provided with a starter that drives an output shaft of the Stirling engine. The ECU includes a control portion that commences an engine-starting drive of the starter within a phase interval, during which the torque of the Stirling engine that varies according to phase of the output shaft is relatively small. The phase interval is an interval during which the torque of the Stirling engine is less than or equal to the torque obtained when the compression begins. The phase at which the driving of the starter is commenced is set to the phase at which the torque of the Stirling engine becomes smaller than the torque obtained when the compression begins.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: April 14, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaaki Katayama, Manabu Tateno, Satoshi Komori
  • Patent number: 8984877
    Abstract: A heat exchanger for a stirling engine 10A of a twin-cylinder ? type includes a heat transfer tube group 70A formed with heat transfer tubes 71A causing a working fluid of the stirling engine 10A to flow between a high-temperature cylinder 20 and a low-temperature cylinder 30 arranged linearly and parallel to each other in the stirling engine. The heat transfer tube group 70A includes a rising section G1 extending upward, a falling section G2 extending downward, and a connecting section G3 connecting the rising section G1 and the falling section G2 in a turn-back manner, where the heat transfer tube group 70A is regarded as extending from one end or the other end thereof.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Yaguchi, Daisaku Sawada, Masaaki Katayama
  • Patent number: 8966898
    Abstract: Disclosed is an energy retriever system and methods for absorbing energy and using that energy elsewhere or converting it to other useful forms of energy or work. The energy retriever system consists of a series of components interconnected by a plurality of conduits containing a fluid. Working as a self-contained thermodynamic system, the energy retriever system allows the fluid to circulate through all of these elements. Heat added to the energy capture subsystem heats the fluid. The fluid becomes more pressurized and moves into the expansion cycle subsystem. The energy extraction subsystem transforms the thermal energy of the fluid into work, kinetic energy or thermal energy. The reservoir subsystem compresses the fluid and reintroduces it into the energy capture subsystem. One-way valves are used throughout the system to keep the flow of the fluid in one direction and separate sections of the system that contain different pressures.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: March 3, 2015
    Assignee: Harlequin Motor Works, Inc.
    Inventor: Paul W. Corley
  • Patent number: 8966900
    Abstract: The present disclosure provides an engine assembly that is installed below the surface of the earth to harvest the thermal energy of the earth, using a working fluid in a closed loop system, and convert it into electricity, which can be commercialized at the surface. The subterranean engine comprises a hot region and a cold region, and a working fluid that moves between the two regions. The movement and efficiency of the working fluid operates the pistons that drive a generator coupled to the pistons, thereby generating electricity. The hot region of the engine is primarily powered by the geothermal energy. The engine can further incorporate renewable energy to improve the movement of the working fluid between the hot and cold regions. The system can further be used to store renewable energy below ground.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: March 3, 2015
    Inventor: David R. Smith
  • Publication number: 20150052887
    Abstract: Stirling cycle machines, including engines and coolers or heat pumps are described.
    Type: Application
    Filed: January 7, 2013
    Publication date: February 26, 2015
    Inventor: Michael William Dadd
  • Patent number: 8938963
    Abstract: A thermoacoustic engine includes a first stack and a second stack disposed in a gas-filled looped tube. The first stack has a first end to which heat is inputted and a second end to which cooling water is inputted, and the second stack has a first end to which the cooling water is inputted after passing through the second end of the first stack, and a second end provided with a cooling device. The thermoacoustic engine further includes a flow controller for controlling the flow rate of the cooling water to be inputted to the second end of the first stack.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 27, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yosuke Yamamoto
  • Patent number: 8904779
    Abstract: In a case of performing a static pressure gas lubrication by a stirling engine provided with a pair of cylinders of a high-temperature-side cylinder 20 and a low-temperature-side cylinder 30, a stirling engine gas lubrication structure is provided with an introduction pipe 70A for introducing a working fluid existing within a low-temperature working space into at least an inside of an expansion piston 21 of the expansion piston 21 and a compression piston 31, the low-temperature working space being included in a working space where the working fluid circulates between the cylinders 20 and 30, a temperature of the working fluid in the low-temperature working space lower than that of the working fluid in a working space of a high-temperature side cylinder 22 in a driving state.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: December 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaaki Katayama, Daisaku Sawada, Hiroshi Yaguchi, Manabu Tateno
  • Publication number: 20140352294
    Abstract: The present invention describes a method for generating cold-air blast from slag heat, wherein the method comprises the following steps: a. providing hot, granulated slag, b. providing wet blast furnace gas, c. preheating the wet blast furnace gas, whereby preheated blast furnace gas is obtained, d. transferring heat from the hot, granulated slag to the preheated blast furnace gas, wherein hot blast furnace gas is obtained, e. expanding the hot blast furnace gas in a turbine, wherein energy is released and expanded blast furnace gas is obtained, f. using the released energy to drive a cold-air blast compressor for compressing the cold-air blast, wherein a shaft is driven by expansion of the hot blast furnace gas in a turbine, wherein said shaft drives the cold-air blast compressor and wherein the expanded blast furnace gas is used for preheating the wet blast furnace gas, whereby cold, expanded blast furnace gas is obtained.
    Type: Application
    Filed: December 14, 2012
    Publication date: December 4, 2014
    Inventors: Marc Solvi, Louis Schmit
  • Patent number: 8899037
    Abstract: The present invention provides a Stirling engine capable of effectively recovering heat from exhaust gas flowing through a flue, and connecting a heating portion 10 and a regeneration portion 5 with each other through an operation gas tube without providing a flow passage separating portion 110, and the heating portion 10 includes a heating portion head 10a and a heat-transfer tube group, the heating portion head 10a includes first through holes 30R and second through holes 30S, the first through holes 30R are formed closer to a center region of the heating portion head 10a as compared with the second through holes 30S, one ends of U-shaped tubes are mounted in the first through holes 30R and the other ends of them are mounted in the second through holes 30S, and parallel exhaust gas flow passages is formed between the U-shaped tubes.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: December 2, 2014
    Assignee: Estir Co., Ltd.
    Inventors: Teruyuki Akazawa, Tsutomu Nakatsuka, Taeko Tahara, Osamu Sakamoto
  • Patent number: 8881520
    Abstract: A roller bearing sub-assembly can include a first mounting portion, a second mounting portion spaced apart from the first mounting portion, a first roller disposed between the first and second mounting portions and straps wrapped partially around different portions of the first roller. The first mounting portion, second mounting portion, first roller and straps are configured such that the first and second mounting portions are moveable relative to each other along a selected direction for a distance that is approximately equal to a circumference of the first roller in opposite directions from a mid-stroke position. Linear roller bearing assemblies and methods of forming linear roller bearing assemblies are also disclosed, as are multi-cylinder Stirling engines and a thermal energy recovery system.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: November 11, 2014
    Inventor: S. Grant Emigh
  • Publication number: 20140325977
    Abstract: Burning stove (1) combined with a Stirling engine (2) for producing electricity or to be coupled to a heat pump where the heater of said Stirling engine (3) is placed inside the stove (1), that comprises t o or more burners (4) arranged on the same plan and that the axis of the heater (3) of the Stirling engine (2) passes through the barycenter of said t O or more burners (4). The stove can be advantageously a pellet stove with one or more heat exchangers (8).
    Type: Application
    Filed: December 14, 2012
    Publication date: November 6, 2014
    Applicant: UNGARO SRL
    Inventor: Antonio Ungaro
  • Patent number: 8869529
    Abstract: Systems, methods, and apparatus relating to the use of Stirling engine technology to convert heat, such as from solar radiation, to mechanical work or electricity. Apparatus, systems, components, and methods relating to energy converting apparatus are described herein. In one aspect, the invention relates to the field alignment of panels and the assembly of a concentrator. In another aspect, a passive balancer is used in combination with a ring frame and other moving masses to reduce engine forces and vibration on the structure of the energy converting apparatus while maintaining properly constrained alignment of various suspended masses. In yet another aspect, the invention relates to various over-insolation control and management strategy to prevent overheating of the energy converting apparatus or components and subsystems thereof.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 28, 2014
    Assignee: Qnergy Inc
    Inventors: Paul Fraser, Terry Smith, Rocco Luongo, Justin Thurgood, Trent Wetherbee, Raphael Milleret, Allen Peterson, John Edward Augenblick, Scott McCallum, Ian Williford, Ray Erbeznik, Ben Gyori, Patrick Fox, Harry McVicker, Tina Dale
  • Patent number: 8820068
    Abstract: A linear, multi-cylinder Stirling cycle machine comprises a plurality of Stirling cycle units arranged in an open series or closed loop. Each of the units comprises a compression space in fluid communication with an expansion space via a regenerative heat exchange assembly. The compression space and expansion space are in fluid communication with, respectively, a compression piston and an expansion piston, and the separate Stirling cycle units are mechanically coupled together by linear power transmitters, which connect the expansion piston of one unit to the compression unit of the other. The linear power transmitters can be linear transducers such as linear motors or generators. In the open series arrangement the series of Stirling cycle units can have an initiating compressor at one end and a terminating expander at the other end. hi the closed loop arrangement, one of the Stirling cycle units can include an exergy throttle to restrict gas flow rates to control the speed of the machine.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: September 2, 2014
    Assignee: ISIS Innovation Limited
    Inventor: Michael William Dadd
  • Publication number: 20140238012
    Abstract: A double acting, miller cycle, reciprocating piston with dual rotary displacer, stirling engine is provided. Configurable as a heat pump, a heat engine, or as a combination with one side driving the other, the engine is completely enclosed, sealed and pressurized with the piston ring as the only internal seal. A miller cycle is created by allowing transfer of the working fluid (typically hydrogen gas) past the piston to balance working fluid pressure only at the extremes of the piston stroke. Two coordinated rotating displacers service opposite sides of one piston. Each displacer manages heat flow, according to its length and shape, through one side of the length of its encasing tube into and out of the working fluid through the other side of the length of its encasing tube. The dead space between the piston and the displacer holds regenerator material.
    Type: Application
    Filed: May 2, 2012
    Publication date: August 28, 2014
    Inventor: Solar Miller
  • Publication number: 20140230428
    Abstract: A stirling engine 10A includes: cylinders 22 and 32; pistons 21 and 31, gas lubrication being performed between the corresponding cylinders 22 and 32 and the pistons 21 and 31; a crankcase 62 that is provided with a crankshaft 61 converting a reciprocating movement of the pistons 21 and 31 into a rotational movement; and a cooler 45 that cools a working fluid performing expansion work, wherein a start timing is adjusted based on an internal humidity of the crankcase 62.
    Type: Application
    Filed: November 2, 2011
    Publication date: August 21, 2014
    Inventors: Satoshi Komori, Masaaki Katayama, Manabu Tateno
  • Patent number: 8800281
    Abstract: A heat engine includes four groups of cylinder assemblies and a transmission output mechanism. The transmission output mechanism includes a rocker-arm shaft support, a crankshaft support, a first rocker-arm assembly, a second rocker-arm assembly, and a crankshaft rotatablely installed on the crankshaft support. A crankshaft long-arm connecting rod and a crankshaft short-arm connecting rod are hinged on the crankshaft. The first rocker-arm assembly includes a first straight shaft, a first long arm and a second long arm, and a first hinged part is arranged on the second long arm to hinge with the crankshaft long-arm connecting rod. The second rocket-arm assembly includes a second straight shaft, a third long arm and a fourth long arm and a short arm. A second hinged part is arranged on the short arm to hinge with the crankshaft short-arm connecting rod. The crankshaft long-arm connecting rod is parallel with the short arm and the crankshaft short-arm connecting rod is parallel with the second long arm.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 12, 2014
    Inventor: Yongshun Yang
  • Patent number: 8793992
    Abstract: An exhaust gas manifold having thermoelectric devices in the exhaust manifold of a stirling engine is disclosed.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: August 5, 2014
    Assignee: Spansion LLC
    Inventors: Crispin Thomas Schamp, Lee Tran
  • Publication number: 20140202147
    Abstract: Heat engines perform a thermodynamic cycle, making use of working fluid which increases pressure and/or volume in response to temperature, resulting in the transformation of heat into useful work. The present invention makes use of a particular type of working fluid that undergoes one or more reversible chemical reactions in response to an increase in temperature, to increase the molar quantity of fluid, producing more useful work and higher thermal efficiency than similar, conventional engines. One embodiment takes the form of a Stirling engine, with a regenerative heat exchange process which recovers most of the energy required to cause the chemical dissociation, ensuring efficiency gain. A method for selecting the working fluid, useful temperature ranges for the engine, and other operating parameters is also claimed. Other types of embodiments may take the form of turbine engines, with one embodiment being a turbine engine that approximates an Ericsson cycle.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 24, 2014
    Inventor: Christopher Michael Woodsum
  • Patent number: 8770186
    Abstract: An apparatus for harnessing solar energy that generates heat from solar radiation, which can be used in various applications. The apparatus for harnessing solar energy comprises a telescope reflector that projects a collimated beam towards a heat accumulator, wherein heat may be generated and used or stored for later use.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: July 8, 2014
    Inventor: Vladimir I. Clue
  • Publication number: 20140182282
    Abstract: A piston rod seal unit. The piston rod seal unit includes a housing, a cylinder gland, and at least one floating rod seal assembly mounted in the cylinder gland, the floating rod seal assembly comprising at least one rod seal mounted onto the floating rod seal assembly.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Applicant: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris
  • Patent number: 8763391
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: July 1, 2014
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner