40results about "Heat inputs" patented technology

An internally heated engine, which comprises a Stirling engine and heating facilities (6, 7); the present engine, by means of altering a means of external heating of the Stirling engine, is provided with said heating facilities (6, 7) in a hot cylinder to push a piston to output power.

A heat exchanger for a Stirling machine that includes an expansion chamber and a compression chamber, the heat exchanger including: a heater; a regenerator; and a cooler, in which the heater includes a first flow channel communicating with the expansion chamber and the regenerator and configured to a working fluid to flow therethrough, and a second flow channel configured to allow a first fluid for exchanging heat with the working fluid to flow therethrough, the cooler includes a third flow channel communicating with the compression chamber and the regenerator and configured to flow the working fluid to flow therethrough, and a fourth flow channel configured to flow a second fluid for exchanging heat with the working fluid to flow therethrough, and the heater, the regenerator, and the cooler are continuously connected to each other in series in a flow direction of the working fluid, provided in one piece.

The invention relates to the technical field of power generation, and provides a fuel built-in generator which comprises an engine and a linear motor, a reactor and a heat exchanger are arranged in the engine, the engine is arranged to form an axial temperature gradient, shielding layers are arranged on the outer side of the reactor and the outer side of the heat exchanger, and the linear motor is arranged in the reactor. A communicating channel extending in the axial direction of the engine is arranged in the engine, and a cavity is formed in a fuel area of the reactor; the linear motor comprises a piston, a cylinder body and an electromagnetic component, the communicating channel communicates with the cylinder body and the cavity, and the piston can reciprocate in the cylinder body so that the magnetic flux of the electromagnetic component can be changed. According to the generator with the built-in fuel, the reactor is arranged in the engine, and the shielding layer is arranged on the outer side of the reactor, so that the influence of radiation on the electromagnetic component is reduced.

A system for recovery of energy in residue gases, comprising at least two energy conversion units (1), including a combustion chamber (2) having a fuel inlet (9), and a Sterling engine (4) having a heat exchanger (3) with a set of tubes containing working fluid, a portion of the heat exchanger extending into the combustion chamber (2). The system further comprises a pressure control system including a high-pressure reservoir (21) of working fluid, a low- pressure reservoir (22) of working fluid, a pressure pump (23) configured to maintain a pressure difference between the reservoirs, and a control arrangement (31, 32, 33) to regulate a pressure in the fluid circuit.

To provide a heat exchanger for a Stirling engine enabling shortening of a manufacturing time and reduction of manufacturing cost, a manufacturing method for the heat exchanger and the Stirling engine.SOLUTION: A heat exchanger 6 for a Stirling engine 1 includes a heater 67, a regenerator 69 and a cooler 68 connected in series in a flowing direction of work gas. An expansion chamber 21 and a compression chamber 22 are communicated via the heater 67, the regenerator 69 and the cooler 68. The heater 67 includes: a work gas flow passage 671 in which the work gas flows; and a heat source fluid flow passage 672 in which heat source fluid exchanging heat with the work gas flows. The cooler 68 includes: a work gas flow passage 681 in which the work gas flows; and a cooling fluid flow passage 682 in which cooling fluid exchanging heat with the work gas flows. The heater 67, the regenerator 69 and the cooler 68 are continuously connected to each other and provided integrally.SELECTED DRAWING: Figure 2

A thermal energy extraction assembly or system for converting thermal energy differentials into kinetic energy and / or electrical energy, the thermal energy extraction assembly comprising a conduit operatively connected with a reciprocating motion arrangement, the conduit comprising a pair of heat exchanging sections arranged having at least one fluid flow diverter configured to establish selectable and / or alternative fluid flow paths according to one or more characteristics of the reciprocating motion arrangement and / or a temperature of the fluid and / or a pressure of the fluid; and at least one fluid flow inducing device for inducing a flow of a fluid through the conduit and the reciprocating motion arrangement; wherein the reciprocating motion arrangement is operatively configured to move according to an expansion / contraction of the fluid. The one or more characteristics of the reciprocating motion arrangement comprises a position of the reciprocating motion arrangement and / or a speed of the reciprocating motion arrangement.

A multifuel closed-loop thermal cycle piston engine, system and method. An externally-fired continuous combustion piston-driven engine configured to employ water injection post combustion to maintain a temperature of exhaust gas at a set point to form a closed-loop thermal cycle. A multifuel closed-loop thermal cycle piston engine includes a drive stage, a compression stage separate from the drive stage, the compression stage including a pressure- operated exhaust valve of a compression cylinder, an externally-fired continuous combustion chamber configured to conduct continuous combustion of a nonselective fuel, the combustion chamber comprising a water injection stage succeeding the fuel burner chamber, the water injection stage configured to inject water into the combustion chamber post-combustion, and wherein a quantity of water injected post-combustion is configured to maintain engine exhaust at or below a temperature set point.

A hot air engine for converting heat into motion, wherein the engine comprises: - a wall member, comprising a cylindrical wall surrounding a central axis and an end wall extending through the central axis; - a displacer member comprising a cylindrical displacer part co-axial with the cylindrical wall and a displacer end part extending through the central axis, wherein the displacer member is movable, relative to the wall member, back and forth along the central axis to move a working fluid back and forth between a first chamber, defined by the end wall and the displacer end part, and a second chamber of the engine through the regenerator passage defined by the cylindrical wall member and the cylindrical displacer member; - a heating system provided with a heating zone separated from the first chamber by the end wall, wherein the cylindrical displacer part and the displacer end part together surround the cylindrical wall and the end wall, wherein the end wall defines the heating zone within the wall member.

An alternative heat source for an engine with an elongated compartment with first and second ends, a directed energy device capable of sending a pulse of photonic energy to a focal point within the first end of the compartment, an intake allowing for the entry of a gas into the elongated compartment, an exhaust allowing for the exit of the gas from the elongated compartment, and a piston capable of moving within the elongated compartment between the first and second ends. The pulse of photonic energy at the focal point heats the gas and causes a corresponding expansion of the gas in the elongated compartment, driving the piston toward the second end of the elongated compartment, where the piston movement can be translated into motive force. The same principle can work with a rotary chamber, or a dual chambered linear system.

The present application relates to the field of energy conversion, and provides a Stirling engine, which comprises an energy conversion device and a linear motor, the energy conversion device is arranged to form an axial temperature gradient, the energy conversion device is provided with a buffer tube, one end of the buffer tube is communicated with an expansion cavity in the energy conversion device, the expansion cavity is located at one end of the energy conversion device away from the linear motor, and the buffer tube extends along the axial direction of the energy conversion device; the linear motor comprises a piston, a phase adjuster and a cylinder body, the piston can reciprocate in a second cavity of the cylinder body, the piston is slidingly and sealingly connected with the buffer tube, the phase adjuster is located at the other end of the buffer tube, the phase adjuster is slidingly and sealingly connected with the piston, a first cavity is formed between the phase adjuster, the piston and the buffer tube, and the first cavity is communicated with the expansion cavity through the buffer tube. The Stirling engine provided by the present application sets the buffer tube in the engine, and installs the phase adjuster in the linear motor, so that the phase adjuster is away from the energy conversion device, and the influence of high-temperature or low-temperature environment on the phase adjuster is reduced.

An interior space climate control system featuring a temperature differential engine, with the temperature differential engine configured to exploit the temperature differential of at least two sources with different temperatures. The fluids may be used to provide additional benefits to an interior space, such as heating, hot water, cooling, and refrigeration, and unused climate control fluids may in turn be used as sources of fluids with temperature differentials.

The present invention discloses a space-use decay heat Stirling conversion device, which relates to the field of nuclear energy utilization and includes: a double-ended free-piston Stirling motor, a fan-shaped liquid droplet radiation heat dissipation system for space, a Stirling expansion chamber, a plutonium-238 fuel ring, a thermal insulation layer, a shielding layer, a control and power transmission and distribution system, annular fins, a droplet emission stage, a radiation heat dissipation cavity, a droplet collection stage, a tube bundle channel, and an electromagnetic pump. The present invention utilizes the decay heat generated by the plutonium-238 fuel as a heat source, converts the decay heat into electrical energy through a double-ended free-piston Stirling motor, removes waste heat through a fan-shaped liquid droplet radiation heat dissipation system for space, and improves the utilization efficiency of the heat source using a dynamic Stirling converter. The opposing arrangement of the Stirling converters reduces noise and vibration, and the fan-shaped liquid droplet radiation heat dissipation system provides efficient and compact waste heat removal, further ensuring system efficiency and reducing the overall volume, thereby meeting the requirements of space missions for higher power and more efficient energy supply.

An alternative heat source for an internal combustion engine with an elongated compartment with first and second ends, a directed energy device capable of sending a pulse of photonic energy to a focal point within the first end of the compartment, an intake allowing for the entry of a gas into the the elongated compartment, an exhaust allowing for the exit of the gas from the elongated compartment, and a piston capable of moving within the elongated compartment between the first and second ends. The pulse of photonic energy at the focal point heats the gas and causes a corresponding expansion of the gas in the elongated compartment, driving the piston toward the second end of the elongated compartment, where the piston movement can be translated into motive force. The same principle can work with a rotary chamber, or a dual chambered linear system.

The invention relates to the technical field of power generation, and provides a liquid metal magnetohydrodynamic power generation system driven by a closed circulation free piston engine, which comprises a free piston engine and a liquid metal magnetohydrodynamic power generator, the liquid metal magnetofluid generator comprises a liquid metal magnetofluid component, the two sides of liquid metal of the liquid metal magnetofluid component are connected with the expansion unit and the compressor unit respectively, and the liquid metal flows in a reciprocating mode under the action of the expansion unit and the compressor unit. Under the action of the expansion unit and the compressor unit, liquid metal of the liquid metal magnetofluid component can flow in a reciprocating mode to generate electricity, the liquid metal magnetofluid generator serves as an electricity generation mechanism and has the advantage of being high in energy conversion efficiency, and the closed circulation free piston engine is adopted to drive the liquid metal magnetofluid generator to generate electricity. Clean energy such as concentrated solar energy and nuclear heat energy can be utilized.

A spray-actuated heat engine comprises an expandable volume chamber containing an operating fluid in gas form, a reservoir holding a heat transfer fluid in liquid form, a pump that pumps the heat transfer fluid from the reservoir to the chamber, and a piping system through which the heat transfer fluid is configured to flow. The piping system is in fluid communication with a heat source for heating the heat transfer fluid to obtain a high temperature and is in fluid communication with a cold source for removing heat from the heat transfer fluid to obtain a low temperature. The heat transfer fluid at the high temperature is selectively sprayed into the expandable volume to mix with and expand the operating fluid, and the heat transfer fluid at the low temperature is selectively sprayed into the expandable volume to mix with and contract the operating fluid.

The invention relates to a cooling system including a cooling chamber, a rotary compressor for pressurising a refrigerant, a condenser, an expander configured to expand the refrigerant, and at least one evaporator operatively connected to the cooling chamber to absorb heat from the cooling chamber. The cooling system further includes a Stirling motor configured to rotatably drive the rotary compressor. The Stirling motor includes an expansion space in which at least one working medium is expandable and a first piston which is movably arranged in the expansion space. The Stirling motor is configured to cooperate with at least one heat source to expand the working medium and drive the first piston to rotatably drive the driveshaft. The invention further includes a solar energy capturing device and a solar tracking device.

The invention concerns a hybrid solar power generation system comprising:a set of photovoltaic panels,a first loop circuit containing a heat-carrying fluid able to circulate along the first loop circuit, said first loop circuit defining a first portion for circulation of the fluid in a first temperature range, a second portion adjacent to said photovoltaic panels for thermal exchange between the fluid and said photovoltaic panels and a third portion for circulation of the fluid in a second temperature range, wherein the temperatures of the second temperature range are greater than the temperatures of the first temperature range,a heat pump with a second loop circuit containing a heat-carrying fluid, said second loop circuit passing successively through an evaporator, a compressor, a condenser and a metering device, where the heat source of said evaporator is the heat-carrying fluid present in said third portion of the first loop circuit, anda Stirling engine, where the Stirling engine's heat source derives from heated fluid refrigerant present in a portion of the second loop circuit placed between the compressor, and the metering device.

A thermal engine arrangement comprising a first thermal engine having a first free piston; a second thermal engine having a second free piston; wherein operations of the first and second thermal engines are synchronized to balance force the first thermal engine piston produces with opposing force the second thermal engine piston produces.

An interior space climate control system featuring a temperature differential engine, with the temperature differential engine configured to exploit the temperature differential of at least two sources with different temperatures. The fluids may be used to provide additional benefits to an interior space, such as heating, hot water, cooling, and refrigeration, and unused climate control fluids may in turn be used as sources of fluids with temperature differentials.

An internally heated engine is provided, which includes a Stirling engine and a heating device (6, 7), and the engine modifies the external heating method of the Stirling engine by disposing the heating device (6, 7) in the hot cylinder to push the piston and output power.

The invention relates to the field of energy conversion, and provides a Stirling engine which comprises an energy conversion device and a linear motor, the energy conversion device is arranged to form an axial temperature gradient, the energy conversion device is provided with a buffer pipe, and one end of the buffer pipe is communicated with an expansion cavity in the energy conversion device; the expansion cavity is located at the end, away from the linear motor, of the energy conversion device. The buffer pipe extends in the axial direction of the energy conversion device. The linear motor comprises a piston, a phase modulator and a cylinder body, the piston can reciprocate in a second cavity of the cylinder body, the piston slides and is in sealed connection with the buffer pipe, the phase modulator is located at the other end of the buffer pipe, the phase modulator slides and is in sealed connection with the piston, a first cavity is formed among the phase modulator, the piston and the buffer pipe, and the first cavity is communicated with the expansion cavity through the buffer pipe. According to the Stirling engine provided by the invention, the buffer tube is arranged in the engine, and the phase modulator is mounted in the linear motor, so that the phase modulator is far away from the energy conversion device, and the influence of a high-temperature or low-temperature environment on the phase modulator is reduced.

The invention relates to the technical field of power generation, and provides a standing wave generator which comprises an engine and a linear motor, a reactor and a heat exchanger are arranged in the engine, a communicating pipeline is formed in the engine, and the communicating pipeline is communicated with the reactor through the heat exchanger; the linear motor comprises a cylinder body, a piston and an electromagnetic component, a communicating cavity is formed in the cylinder body and communicates with the communicating pipeline, and the piston can reciprocate in the communicating cavity so that the magnetic flux of the electromagnetic component can be changed. According to the standing wave generator provided by the invention, energy is supplied inside the standing wave generator through the reactor, the heat utilization rate of the reactor can be improved, the communicating pipeline is arranged between the engine and the linear motor, so that the moving piston is far away from the radiation of the reactor, the problem that the piston is blocked due to swelling caused by radiation is solved, and the influence of the reactor on the motor is reduced.

A system for energy conversion including a closed cycle engine having a piston body defining a hot side and a cold side and having a piston assembly movable within the piston bod. An electric machine is operatively coupled with the piston assembly and is operable to generate electrical power when the piston assembly is moved within the piston chamber. A control system includes one or more sensors operable to detect a piston movement characteristic of the piston assembly movable within the piston body. A controller is communicatively coupled with the one or more sensors and a controllable device. The controller is configured to determine a control command based at least in part on data received from the one or more sensors. The control command is selected based at least in part to cause the electric machine operatively coupled with the piston assembly to generate a preselected electrical power output.

A heat exchanger for a Stirling machine that includes an expansion chamber and a compression chamber, the heat exchanger including: a heater; a regenerator; and a cooler, in which the heater includes a first flow channel communicating with the expansion chamber and the regenerator and configured to a working fluid to flow therethrough, and a second flow channel configured to allow a first fluid for exchanging heat with the working fluid to flow therethrough, the cooler includes a third flow channel communicating with the compression chamber and the regenerator and configured to flow the working fluid to flow therethrough, and a fourth flow channel configured to flow a second fluid for exchanging heat with the working fluid to flow therethrough, and the heater, the regenerator, and the cooler are continuously connected to each other in series in a flow direction of the working fluid, provided in one piece.

A heat exchanger for a Stirling machine that includes an expansion chamber and a compression chamber, the heat exchanger including: a heater; a regenerator; and a cooler, in which the heater includes a first flow channel communicating with the expansion chamber and the regenerator and configured to a working fluid to flow therethrough, and a second flow channel configured to allow a first fluid for exchanging heat with the working fluid to flow therethrough, the cooler includes a third flow channel communicating with the compression chamber and the regenerator and configured to flow the working fluid to flow therethrough, and a fourth flow channel configured to flow a second fluid for exchanging heat with the working fluid to flow therethrough, and the heater, the regenerator, and the cooler are continuously connected to each other in series in a flow direction of the working fluid, provided in one piece.

The invention concerns a hybrid solar power generation system (100) comprising: - a set of photovoltaic panels (12), - a first loop circuit (20) containing a heat-carrying fluid (20a) able to circulate along the first loop circuit (20), said first loop circuit (20) defining a first portion (201) for circulation of the fluid in a first temperature range, a second portion (202) adjacent to said photovoltaic panels (12) for thermal exchange between the fluid (20a) and said photovoltaic panels (12) and a third portion (203) for circulation of the fluid in a second temperature range, wherein the temperatures of the second temperature range are greater than the temperatures of the first temperature range, - a heat pump (13) with a second loop circuit (30) containing a heat¬ carrying fluid (30a), said second loop circuit (30) passing successively through an evaporator (13a), a compressor (13b), a condenser (13c) and a metering device (13d), where the heat source of said evaporator (13a) is the heat-carrying fluid (20a) present in said third portion (203) of the first loop circuit (20), and - a Stirling engine (15), where the Stirling engine's heat source derives from heated fluid refrigerant (30a) present in a portion of the second loop circuit (30) placed between the compressor (13b), and the metering device (13d).

A waste heat recovery system comprising a thermal circuit. The thermal circuit includes a boiler and an expander fluidly coupled to the boiler. The thermal circuit further includes a power transfer system integrated to the expander. The power transfer system is configured to receive mechanical energy from the expander. The thermal circuit further includes an ejector fluidly coupled to the boiler and to the power transfer system. The ejector is configured to receive a motive flow of working fluid from the boiler. The ejector is further configured to receive a suction flow of working fluid from the power transfer system. The ejector is further configured to combine the motive flow of working fluid and the suction flow of working fluid.

A new thermal engine design and novel hot air inlet provide a high-efficiency hot-gas free-piston Stirling engine design.

A system including a closed cycle engine having a piston body defining a hot side and a cold side and having a piston assembly movable within the piston body. An electric machine is operatively coupled with the piston assembly. A control system includes one or more sensors operable to detect a piston movement characteristic of the piston assembly movable within the piston body. A controller is communicatively coupled with the one or more sensors and a controllable device. The controller is configured to determine a control command based at least in part on data received from the one or more sensors. The control command is selected based at least in part to cause the electric machine operatively coupled with the piston assembly to generate a preselected electrical power output. The controller provides the determined control command to the controllable device. The controllable device is operable to control an input to an engine working fluid disposed within the piston body.