17results about "Heat inputs" patented technology

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.

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.

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.

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 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.

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

In this arrangement, the compressed air is heated by an external hot air stream via the recuperator.

A maximum delivery adiabatic reciprocal hot-air engine having a free interior space with a wider interior diameter than ends and an isolator-displacer having an aerodynamic exterior shape that mates with an interior shape of the hot and cold caps. The chamber and isolator-displacer are configured to isolate the hot or cold cap while exposing the volume of working fluid to the corresponding cold or hot cap. The chamber having a common space that is alternately heated or cooled by the respective hot or cold cap, The chamber is joined to a piston cylinder at the chamber's maximum interior diameter, with a volume of working fluid within the chamber communicating thermally with a piston through an opening at the common space wall. The volume of working fluid is adiabatically compressed and expanded to its intermediate temperature, thereby maximizing work and efficiency with the least amount of heat and the smallest dimensions.

A hot air engine for converting heat into motion, comprising 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, the displacer member is movable, relative to the wall member, back and forth along the central axis to move a working fluid between a first chamber and a second chamber of the engine through the regenerator passage defined by the cylindrical wall member and the cylindrical displacer member; and 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.

A system for energy conversion, the system including a closed cycle engine defining a hot side and a cold side, a heater loop positioned at least in part in a heat exchange relationship with the hot side of the closed cycle engine for imparting thermal energy thereto, and a hot side heat exchanger positioned along an intake line of the heater loop, wherein the heat loop has a heat recovery loop operable to recover heat from the hot side and return the recovered heat to the hot side, and wherein the heat recovery loop has a recirculation loop in fluid communication with the intake line for recirculating heating working fluid to the hot side heat exchanger.

A thermal energy extraction assembly or system for converting a thermal energy difference into kinetic energy and / or electrical energy, the thermal energy extraction assembly comprising: a conduit operably connected with a reciprocating device, the conduit comprising a pair of heat exchange portions arranged with at least one fluid flow diverter, the fluid flow diverter is configured to establish a selectable and / or alternative fluid flow path according to one or more characteristics of the reciprocating motion device and / or temperature and / or pressure of the fluid; and at least one fluid flow directing means for directing fluid flow through the conduit and the reciprocating means; wherein the reciprocating device is operably configured to move according to the expansion / contraction of the fluid. The one or more characteristics of the reciprocating device include a position of the reciprocating device and / or a speed of the reciprocating device.

A hot air engine for converting heat into motion, comprising 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, the displacer member is movable, relative to the wall member, back and forth along the central axis to move a working fluid between a first chamber and a second chamber of the engine through the regenerator passage defined by the cylindrical wall member and the cylindrical displacer member; and 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.