公开(公告)号：US12228094B2

公开(公告)日：2025-02-18

申请号：US16920821

申请日：2020-07-06

Applicant: HYLIION HOLDINGS CORP

Inventor： Joshua Tyler Mook ,  Michael Thomas Gansler ,  Scott Douglas Waun ,  Kevin Michael VandeVoorde ,  Aigbedion Akwara ,  Michael Robert Notarnicola ,  Jason Joseph Bellardi ,  Mohammed El Hacin Sennoun ,  Mohamed Osama

IPC: F02G1/055 ,  F02G1/043 ,  F02G1/044 ,  F02G1/057

Abstract: A system for energy conversion including a closed cycle engine containing a volume of working fluid is provided. The engine includes a double-ended piston assembly including a pair of pistons coupled to a connection member. An expansion chamber is separated from a compression chamber by the piston. The engine defines an outer end and an inner end relative to a lateral extension of the piston assembly. A heater body is positioned thermally proximal to the expansion chamber and thermally distal to the compression chamber, and the heater body is positioned at the outer end of the engine. A load device is operably coupled to the piston assembly at the inner end of the engine. The load device is positioned between the pair of pistons of the piston assembly.

公开(公告)号：US20240384693A1

公开(公告)日：2024-11-21

申请号：US18691955

申请日：2022-09-16

Applicant: FeTu Limited

Inventor： Jonathan Fenton

IPC: F02G1/043

Abstract: A method of operating a thermodynamic apparatus configured as a heat engine or heat pump, the thermodynamic apparatus comprising, in flow series, a first heat exchanger, an expansion sub-chamber and a second heat exchanger, the method comprising transferring fluid from the first heat exchanger to the second heat exchanger via the expansion sub-chamber by: admitting a fluid flow at an intake pressure from the first heat exchanger into the expansion sub-chamber by increasing the volume of the expansion sub-chamber; fluidically isolating the fluid within the expansion sub-chamber from the first heat exchanger; expanding the fluid within the expansion sub-chamber by further increasing the volume of the expansion sub-chamber to reduce the pressure of the fluid from the intake pressure; fluidically coupling the expansion sub-chamber to the second heat exchanger; and transferring fluid out of the expansion sub-chamber to the second heat exchanger by reducing the volume of the expansion sub-chamber.

公开(公告)号：US20240376850A1

公开(公告)日：2024-11-14

申请号：US18688246

申请日：2022-08-08

Applicant: Twinbird Corporation

Inventor： Junichi Kamoi ,  Kazuya Kondo

IPC: F02G1/043 ,  F01B29/10

Abstract: Provided is a free-piston Stirling engine that can be easily manufactured by reducing manufacturing processes. A free-piston Stirling refrigerator comprises: a piston capable of reciprocating inside a first cylinder; a first leaf spring for controlling the reciprocating motion of the piston; a connection body for connecting the piston to the movable portion of the first leaf spring; a support arm portion for supporting the fixation portion of the first leaf spring in a state where the positional relation with the first cylinder is fixed; a washer for adjusting the movable mass mp of a piston assembly; and an attachment portion that is disposed on the connection body 13 and to which the washer is attached, and the attachment portion is disposed in such position as to enable the washer to be attached while the piston assembly is assembled, thereby reducing disassembly and reassembly processes and allowing easy manufacturing.

公开(公告)号：US12078123B2

公开(公告)日：2024-09-03

申请号：US17939280

申请日：2022-09-07

Applicant: New Power Concepts, LLC

Inventor： Dean Kamen ,  Christopher C. Langenfeld ,  Prashant Bhat ,  Stanley B. Smith, III

IPC: F02G1/043 ,  F01B7/12 ,  F02G1/044 ,  F02G1/053 ,  F16C9/04 ,  F16C11/04 ,  F16C11/12 ,  F16J3/06 ,  F16J15/52

CPC classification number: F02G1/0435 ,  F01B7/12 ,  F02G1/043 ,  F02G1/044 ,  F02G1/0535 ,  F16C9/04 ,  F16C11/04 ,  F16C11/12 ,  F16J3/06 ,  F16J15/52 ,  F02G2244/08 ,  F02G2253/03 ,  F02G2253/08 ,  F02G2253/80 ,  F02G2270/45 ,  F02G2270/50 ,  F02G2270/85

Abstract: A Stirling cycle machine with a liquid fuel/gaseous fuel burner. The burner may include a preheater to capture the thermal energy of the exhaust. The burner directs the preheated air to each burner head, where it enters a prechamber. Each burner head includes a fuel nozzle that directs liquid or gaseous fuel into the prechamber. The prechamber is fluidically connected to a combustion chamber via a prechamber nozzle that has a smaller opening than the prechamber. The burner head ignites the fuel air mixture in the prechamber with an ignitor located above or within the prechamber. The flame is initially lit as a diffusion flame in the prechamber. The flame is pushed out of the prechamber into the combustion chamber by an increased air flow rate. The liquid fuel from the nozzle now evaporates in the prechamber and forms a prevaporized flame in the combustion chamber.

公开(公告)号：US20240271835A1

公开(公告)日：2024-08-15

申请号：US18565287

申请日：2022-05-31

Applicant: Jonathan Nord

Inventor： Jonathan Nord

IPC: F25B9/14 ,  F02G1/043 ,  F02G1/055

CPC classification number: F25B9/14 ,  F02G1/0435 ,  F02G1/055

Abstract: A single-acting (two pistons) or double-acting (four pistons) alpha configuration Stirling engine has increased thermal exchange between a hot piston crown and a hot head and between a cold piston crown and a cold head of each piston cylinder assembly, increasing conversion of thermal energy to mechanical motion. The thermal exchange is provided by presenting corresponding transverse peaks and valley that create increased surface area and increased convective fluid flow rate for a working gas sealed in the Stirling engine.

公开(公告)号：US11502628B2

公开(公告)日：2022-11-15

申请号：US16756326

申请日：2018-10-16

Applicant: BME DR. GOLBS & PARTNER GMBH

Inventor： Stefan Weber ,  Petra Werner

IPC: H02N99/00 ,  F02G1/043 ,  F28D20/02 ,  H02J3/38 ,  H02J15/00 ,  H02J3/28 ,  F24H7/00 ,  F25B21/04

Abstract: The invention relates to an energy storage system for storing heat and coldness and for providing electrical energy, characterized by an energy converter, wherein the energy converter is designed to produce electrical energy from heat and coldness and to produce heat and coldness from electrical energy, the energy converter being in heat-transferring contact with a hot heat exchanger and with a cold heat exchanger, the hot heat exchanger being connected to a heat reservoir and the cold heat exchanger being connected to a coldness reservoir, and a control unit being provided, which operates the energy storage system in a first operating mode, in which heat and coldness are formed from electrical energy by means of the energy converter, and in a second operating mode, in which electrical energy is produced from heat and coldness.

公开(公告)号：US20220275781A1

公开(公告)日：2022-09-01

申请号：US17748458

申请日：2022-05-19

Applicant: DEKA Products Limited Partnership

Inventor： Andrew A. Schnellinger ,  James R. Lowell ,  Bryan A. Finseth ,  Christopher L. Barber ,  Jason M. Sachs ,  Donald J. Lucas ,  Shannon Prescott ,  Jeffrey W. Kite ,  Andras K. Fekete ,  Douglas R. Adams

IPC: F02N11/08 ,  F02G1/043 ,  F24D11/00 ,  H02J1/10

Abstract: A DC power plant generating DC power from a variety of engines including a Stirling cycle engine. The DC power plant includes a relatively small start-up power source that is discontinued after the engine is running. A method for producing DC power for a load including starting up an engine using power supplied by a relatively small power supply supplemented by a capacitor bank, providing output from the engine to a generator, producing alternating current (AC) power by the generator, converting the AC power to direct current (DC) power, disabling output of the DC power during a first set of pre-selected conditions, limiting a rate of change of current of the DC power during a second set of pre-selected conditions, reducing conducted and radiated emissions of the DC power, disconnecting the DC power from the load under a third set of pre-selected conditions, and providing the DC power to the load.

公开(公告)号：US20220195959A1

公开(公告)日：2022-06-23

申请号：US17603151

申请日：2020-05-20

Applicant: General Electric Company

Inventor： Kevin Michael VandeVoorde ,  Joshua Tyler Mook ,  Aigbedion Akwara ,  Jason Joseph Bellardi ,  Mohammed El Hacin Sennoun ,  Mary Kathryn Thompson ,  Scott Douglas Waun ,  Michael Thomas Gansler ,  Michael Robert Notarnicola

IPC: F02G1/044 ,  F02G1/055 ,  F02G1/043

Abstract: A system for energy conversion, the system including a closed cycle engine containing a volume of working fluid, the engine comprising a first chamber defining an expansion chamber and a second chamber defining a compression chamber each separated by a piston attached to a connection member of a piston assembly, and wherein the engine comprises a heater body in thermal communication with the first chamber, and further wherein the engine comprises a cold side heat exchanger in thermal communication with the second chamber, and wherein a third chamber is defined within the piston, wherein the third chamber is in selective flow communication with the first chamber, the second chamber, or both.

公开(公告)号：US11261824B2

公开(公告)日：2022-03-01

申请号：US16959363

申请日：2018-12-20

Applicant: Maston AB

Inventor： Stefan Mastonstråle

IPC: F02G1/057 ,  F02G1/043

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 gas channel which comprises a first heat exchanger (16) extending from a head (19) of the displacer cylinder (3) into the heater device (14), and a second heat exchanger (17) formed by a regenerator arranged outside the heater device (14). The regenerator (17) comprises a regenerator element (17) formed by metal foam that has an open porosity.

公开(公告)号：US20220026118A1

公开(公告)日：2022-01-27

申请号：US17393355

申请日：2021-08-03

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.