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公开(公告)号：US20220011025A1
公开(公告)日：2022-01-13
申请号：US17483223
申请日：2021-09-23
Applicant: King Abdulaziz University
Inventor： Majed Moalla ALHAZMY
Abstract: A solar energy powered Stirling duplex cooler is presented which includes a Stirling engine and a Stirling cooler. The Stirling engine drives the Stirling cooler to produce cold temperatures for refrigeration or air conditioning. The Stirling duplex cooler includes a solar concentrator to focus high temperature solar radiation upon the Stirling engine expansion space. The Stirling duplex cooler further includes a thermal storage tank to receive and store heat rejected from the cooler expansion space. This stored heat is used to operate the cooler at night. A flywheel connected operatively to engine and cooler expansion space pistons and a crankshaft connected operatively to engine and cooler compression space pistons actuate the pistons to move a working fluid between the expansion and compression spaces.
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公开(公告)号：US11209194B1
公开(公告)日：2021-12-28
申请号：US17483223
申请日：2021-09-23
Applicant: King Abdulaziz University
Inventor： Majed Moalla Alhazmy
Abstract: A solar energy powered Stirling duplex cooler is presented which includes a Stirling engine and a Stirling cooler. The Stirling engine drives the Stirling cooler to produce cold temperatures for refrigeration or air conditioning. The Stirling duplex cooler includes a solar concentrator to focus high temperature solar radiation upon the Stirling engine expansion space. The Stirling duplex cooler further includes a thermal storage tank to receive and store heat rejected from the cooler expansion space. This stored heat is used to operate the cooler at night. A flywheel connected operatively to engine and cooler expansion space pistons and a crankshaft connected operatively to engine and cooler compression space pistons actuate the pistons to move a working fluid between the expansion and compression spaces.
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公开(公告)号：US11125184B2
公开(公告)日：2021-09-21
申请号：US16878736
申请日：2020-05-20
Applicant: General Electric Company
Inventor： Michael Robert Notarnicola , Joshua Tyler Mook , Kevin Michael VandeVoorde , Aigbedion Akwara , Mohammed El Hacin Sennoun , Mary Kathryn Thompson , Scott Douglas Waun , Michael Thomas Gansler
IPC: F02G1/055 , F02G1/04 , F28D9/04 , F28F7/02 , F28F13/00 , F28F13/14 , F02G1/053 , F02G1/057 , F02G1/047 , F02G1/05 , F02G1/044 , F02G1/043 , F28D21/00
Abstract: A constant density heat exchanger is provided. The constant density heat exchanger includes a housing extending between a first end and a second end and defining a chamber having an inlet and an outlet. A first flow control device is positioned at the inlet of the chamber and movable between an open position in which a working fluid is permitted into the chamber and a closed position in which the working fluid is prevented from entering the chamber. A second flow control device is positioned at the outlet of the chamber and movable between an open position in which the working fluid is permitted to exit the chamber and a closed position in which the working fluid is prevented from exiting the chamber. A heat exchange fluid imparts thermal energy to the volume of working fluid held at constant density within the chamber by the first and second control devices.
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公开(公告)号：US11079145B2
公开(公告)日：2021-08-03
申请号：US15790790
申请日：2017-10-23
Applicant: New Power Concepts LLC
Inventor： Christopher C. Langenfeld , Michael J. Slate , Prashant Bhat
IPC: F25B9/14 , F02F3/00 , F02G1/043 , F16H21/34 , F02B75/18 , F02G1/044 , F02G1/055 , F16H21/12 , F16H35/18
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. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.
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公开(公告)号：US11078869B2
公开(公告)日：2021-08-03
申请号：US15260353
申请日：2016-09-09
Applicant: Matthew David Marko
Inventor： Matthew David Marko
IPC: F02G1/043
Abstract: The inventor claims a heat engine that follows a modification of the Stirling thermodynamic heat engine cycle; the monatomic working fluid is a saturated gas at the beginning of the isothermal compression stage, and ends up a mixed-phase fluid at the end of the compression. A proximate piston compresses and expands surrounding ideal gas helium, to function as a regeneration mechanism of this Stirling cycle and minimize the temperature difference during heat transfer. This cycle takes advantage of the temperature-dependent attractive intermolecular forces of the working fluid to assist in compressing the working fluid partially into a liquid, reducing the input compression work and increasing the overall heat engine efficiency.
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Patent Agency Ranking
公开(公告)号：US11022067B2
公开(公告)日：2021-06-01
申请号：US16649759
申请日：2018-09-24
Applicant: Stirling Works Global Ltd
Inventor： Michael Dann , Graham Nicholson
Abstract: A closed cycle regenerative heat engine has a housing (12) defining a chamber (14). A displacer (18) is housed in the chamber. A shaft (24) is connected with the displacer and extends from the chamber. A power piston (30) is housed in the chamber. The displacer (18) is secured to the housing (12) and is resiliently deformable from a rest condition in response to movement of the shaft (24) to displace the working fluid in the chamber. The displacer may be a multi-start volute spring. The displacer (18) may be provided with a heat storage reservoir to store heat received from a working fluid as the working fluid is displaced from a heating location in the chamber (14) to a cooling location in the chamber and reject heat to the working fluid when the working fluid is displaced from the cooling location to the heating location.
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公开(公告)号：US10947926B1
公开(公告)日：2021-03-16
申请号：US16547307
申请日：2019-08-21
Applicant: Taiwan Happy Energy Co., Ltd.
Inventor： Chih Hung Wang
Abstract: A power generation device includes a first chamber, a second chamber coupled with the first chamber, a first and a second spray devices. The first and second chambers contain working fluid flowable between the first and second chambers via a flow passage between the first and second chambers, and a first and a second space above a portion of the working fluid that is within the first and second chambers. First spray device is coupled with the first chamber to heat or cool the first space in the first chamber. Second spray device is coupled with the second chamber to heat or cool the second space in the second chamber. At least one of the heating and cooling of the first space may cause at least one of a compression or expansion force of the second space, which may drive a power-extraction unit coupled with the second chamber.
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公开(公告)号：US20210054806A1
公开(公告)日：2021-02-25
申请号：US16547307
申请日：2019-08-21
Applicant: Taiwan Happy Energy Co., Ltd.
Inventor： Chih Hung WANG
IPC: F02G1/043
Abstract: A power generation device includes a first chamber, a second chamber coupled with the first chamber, a first and a second spray devices. The first and second chambers contain working fluid flowable between the first and second chambers via a flow passage between the first and second chambers, and a first and a second space above a portion of the working fluid that is within the first and second chambers. First spray device is coupled with the first chamber to heat or cool the first space in the first chamber. Second spray device is coupled with the second chamber to heat or cool the second space in the second chamber. At least one of the heating and cooling of the first space may cause at least one of a compression or expansion force of the second space, which may drive a power-extraction unit coupled with the second chamber.
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公开(公告)号：US10774784B2
公开(公告)日：2020-09-15
申请号：US15560308
申请日：2016-03-23
Applicant: SUN ORBIT GMBH
Inventor： Olivier Paccoud , Jurgen Kleinwachter , Patrick Genkinger
Abstract: The present invention relates to a low temperature, low frequency Stirling engine. Its special geometry allows for large heat exchanger surfaces and great regenerators in order to reach good “Carnoization” efficiency factors. Displacer and power piston may be connected with circular polymer based membrane sealings to the cylinder walls. The cold space of the Stirling Engine may cylindrically Surround the outer periphery of the working cylinder, making thermal isolation obsolete. The engine is for instance suited to operate as base power prime mover using thermal solar collectors and may be coupled with hot oil or pressurized water heat storages. In the reverse mode, the Engine works as effective Heat-Pump/Cooling Engine.
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公开(公告)号：US20200166010A1
公开(公告)日：2020-05-28
申请号：US16340940
申请日：2017-10-11
Applicant: Perry VAN DER BOGT , Willibrordus Nicolaas Johannes URSEM
Abstract: A system for sustainable generation of energy, comprising at least one device for converting natural power into useful energy, and at least one internal combustion engine or heat engine. The internal combustion engine or heat engine may be connected to a gas cleaning device for fuel or heat supply. A method for sustainable generation of energy, comprising the steps of generating a first amount of useful energy by converting natural power; and generating a second amount of energy by operating at least one internal combustion engine or heat engine, wherein the internal combustion engine or heat engine is driven by fuel or heat derived from cleaning a waste gas.
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