WO2020024034A1 - Motor de combustão interna integrado formado por uma unidade principal de ciclo diesel e uma unidade secundária a pistões e processo de controle para o ciclo termodinâmico do motor - Google Patents
Motor de combustão interna integrado formado por uma unidade principal de ciclo diesel e uma unidade secundária a pistões e processo de controle para o ciclo termodinâmico do motor Download PDFInfo
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- WO2020024034A1 WO2020024034A1 PCT/BR2019/050317 BR2019050317W WO2020024034A1 WO 2020024034 A1 WO2020024034 A1 WO 2020024034A1 BR 2019050317 W BR2019050317 W BR 2019050317W WO 2020024034 A1 WO2020024034 A1 WO 2020024034A1
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- unit
- gas
- internal combustion
- piston
- cycle
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/057—Regenerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention refers to an internal combustion engine with a diesel cycle, integrated with a secondary closed circuit unit with pistons, forming a mechanically and thermodynamically integrated unit, with energy input by internal combustion in an isobaric process. , and heat rejection by an isothermal compression process. It is a concept of an internal combustion engine with a diesel cycle, whose theoretical efficiency is approximately 80%, compared to the theoretical efficiency of approximately 60% of the conventional diesel cycle engine.
- thermodynamics defines three concepts of thermodynamic systems, the open thermodynamic system, the closed thermodynamic system and the isolated thermodynamic system. These three concepts of thermodynamic systems were conceptualized in the 19th century at the beginning of the creation of the laws of thermodynamics and underpin all the motor cycles known to date.
- thermodynamic system is defined as a system in which neither matter nor energy passes through it. Therefore, this concept of thermodynamic system does not offer properties that allow the development of engines.
- the open thermodynamic system is defined as a system thermodynamic in which energy and matter can enter and leave this system.
- Examples of open thermodynamic systems are the internal combustion engines of the Otto cycle, of the Atkinson cycle, similar to the Otto cycle, of the Diesel cycle, of the Sabathe cycle, similar to the Diesel cycle, of the Brayton cycle of internal combustion.
- the materials that enter these systems are fuels and oxygen or working fluid or working gas.
- the energy that enters these systems is heat.
- the materials that come out of these systems are the exhaustion of combustion or the working fluid, gases and waste, the energies that come out of these systems are the mechanical energy of the work and part of the dissipated heat.
- the closed thermodynamic system is defined as a thermodynamic system in which only energy can enter and exit this system.
- closed thermodynamic systems are external combustion engines such as the Stirling cycle, from Ericsson Ericsson, Rankine cycle with closed circuit working fluid, Brayton heat or external combustion cycle, Carnot cycle.
- the energy that enters this system is heat.
- the energies that come out of this system are the mechanical energy of work and part of the dissipated heat, but no matter comes out of these systems, as occurs in the open system.
- the engines currently known are basically the oldest Rankine cycle engines, Stirling cycle, Otto cycle, Brayton cycle and Diesel cycle. There are others, but they are basically versions of these. Most of them were invented in the 19th century and since their invention they have been improved. In the 20th century, some combined cycles emerged.
- the combined cycle engines known to date have been invented and designed by joining two engine concepts idealized in the 19th century, based on open thermodynamic systems, or closed thermodynamic systems, the best known being the combined cycles of an engine Brayton cycle with a Rankine cycle engine and the combined cycle of a Diesel cycle engine with a Rankine or Organic Rankine cycle engine and combined cycles of the Otto cycle with Rankine already occur
- the basic concept of a combined cycle is a system composed of an engine operating by means of a high temperature source, so that the heat rejection of this engine is the energy that drives a second engine that requires a lower temperature of operation, both forming a combined system of converting thermal energy into mechanical energy for the same common purpose or not
- the current state of the art reveals combined cycles formed by a main Brayton cycle engine that works with a main source with a temperature above 1000 ° C and with exhaust gases in the range between 600 ° C and 700 ° C and these gases in turn, they are channeled to power another Rankine cycle engine or “Organic Rankine” (ORC).
- ORC Organic Rankine
- the conventional Rankine cycle has water as its working fluid, the organic Rankine cycle uses organic fluids, these are more suitable for projects at lower temperatures than projects with the conventional Rankine cycle, so they are normally used in some of the combined cycles.
- the objective of the invention focuses on eliminating some of the existing problems, minimizing other problems and offering new possibilities, to achieve these objectives, objectives of improving efficiency, a new concept of thermal engines started to show substantial advantages.
- a new concept a step that has evolved from the combined cycle to the integrated cycle, that is, we will no longer have a cycle of a unit whose heat rejects from it starts to feed another independent unit, now we have a cycle fully integrated with another where the process of energy transfer starts to be conceptualized as regeneration that interconnects two units forming a new unit integrated mechanically and thermodynamically in order to have a single resulting cycle.
- the objective is to present a concept of a new thermal engine technology that offers more efficiency in the conversion to mechanical strength and energy generation compared to conventional technologies from thermal sources.
- the integrated cycle engines are characterized by constituting a single engine formed by two units and with a single resulting thermodynamic cycle.
- the present concept considers an internal combustion unit of Diesel cycle integrated to a secondary unit of closed circuit with pistons, forming a mechanically integrated unit, whose process between the units is of total energy regeneration and with energy input by combustion internal in an isobaric process in the main cycle unit Diesel, and the heat rejection occurs only in the secondary unit by pistons by an isothermal compression process.
- FIG. 3 shows the detail of the total regeneration between the main unit and the secondary unit, with all incoming energy entering the main unit and all the heat being discharged, theoretically and integrally by the secondary unit.
- Figure 9 shows how the main unit is connected to the secondary unit by a regenerative process and figure 11 shows the thermodynamic cycle resulting from this integration.
- Figure 17 shows a complete construction model of the fully integrated engine.
- Some of the main advantages of the invention of this integrated internal combustion engine that can be verified are the lack of elements for changing the physical phase of the working fluid and its associated losses, the lack of condensation and vaporization elements, therefore the inexistence of losses associated with the latent heat of the working fluid, the inexistence of circuits, pumps, control elements intended for the processes of changing the physical phase of the fluid and its associated losses, items present in the combined cycles of the act! state of the art. Therefore, the innovation presented with this invention is significant.
- the internal combustion thermal engine with a main diesel cycle internal combustion unit integrated with a piston closed circuit secondary unit can be built with materials and techniques similar to conventional combined cycle engines and with widely known techniques, offering viability for its development, construction and practical application. DESCRIPTION OF THE DRAWINGS
- the attached figures demonstrate the main characteristics and properties of the new concept of an internal combustion engine with a diesel cycle integrated into a secondary gas unit with piston closed circuit, forming a mechanically and thermodynamically integrated unit with a resulting thermodynamic cycle.
- five main processes and two others an exhaust and an aspiration process, an isobaric energy input process, an adiabatic expansion process, an isochoretic regenerative process, an isothermal compression and heat rejection process and an isochorical regenerative process, represented as follows:
- Figure 1 shows the thermodynamic cycle of the main diesel cycle internal combustion unit
- FIG. 2 shows the detail of the isothermal line 15 between points (1) and (3) of the thermodynamic cycle of the main unit, which is necessary to generate the regeneration that allows the formation of the thermodynamic cycle of five processes;
- FIG. 3 shows the energy flow 22 from the regeneration of the isochoric process of the main diesel cycle unit to the isochoric process of the piston secondary unit;
- Figure 4 shows in the crosshatched area the work added to the main cycle of the Diesel cycle engine by the secondary engine with pistons
- Figures 5 and 6 show how the mechanical units and the thermodynamic cycle begin to be integrated
- FIGS 7 and 8 show how the piston secondary unit's thermodynamic cycle fits into the main unit's thermodynamic cycle. Diesel cycle to form the integrated engine;
- Figure 9 shows the complete diagram of the integrated engine composed of a main internal combustion unit with a diesel cycle and a secondary unit with pistons connected by a regenerator;
- Figure 10 shows clearly the integration of the thermodynamic cycle of the main internal combustion unit of the Diesel cycle with a net work shown by region 63 of the graph, integrated with the net work shown by region 64 of the piston secondary unit forming a new cycle. result shown in figure 11 with a net work shown by region 67 of the graph;
- Figure 11 shows the thermodynamic cycle resulting from the integrated engine formed by the main internal combustion unit of Diesel cycle with the secondary unit by pistons;
- Figure 12 shows the diagram of the integrated engine formed by the main internal combustion unit with the piston secondary unit with the detail of the energy and gas flow of the isochoric process of the piston secondary unit indicating the performance of the valve (V1) in the isochoric process heating by regeneration;
- Figure 13 shows the diagram of the integrated engine formed by the main internal combustion unit of Diesel cycle with the secondary piston unit with the detail of the energy and gas flow of the adiabatic expansion process of the secondary piston unit indicating that the working gas remains adiabatically confined by the valve blockages (V1), (V2) and (V3) in the adiabatic expansion and work process;
- Figure 14 shows the diagram of the integrated engine formed by the main internal combustion unit with the secondary piston unit, with the detail of the energy and gas flow of the isothermal compression process of the secondary unit with pistons indicating the performance of the valve (V2), (V3) and the turbocharger 47 in the isothermal process of compression and heat rejection;
- Figure 15 shows the diagram of the integrated engine, formed by the main internal combustion unit with the secondary piston unit, again in the initial state of its respective regenerated energy input cycle;
- Figure 16 shows the diagram of the integrated engine formed by the main internal combustion unit of Diesel cycle with the secondary piston unit with the detail of the coupling of the mechanical forces of both units by means of a single shaft or common crankshaft 113;
- Figure 17 shows a drawing of a constructive model of an integrated engine, consisting of a main unit of internal combustion of Diesel cycle with a unit secondary to pistons;
- Figure 4 shows the result of the integration of the cycle of the main unit with the cycle of the secondary unit by pistons and two distinct cycles, one of four thermodynamic processes and the other of three thermodynamic processes. single cycle of five processes, an isobaric expansion (1 -2) of energy input, an adiabatic expansion (2-3), a regenerative isochoric (3-4), a compression isotherm and heat rejection (4- 5) and a regenerative isochoric (5-1).
- FIGS 5 and 6 show the thermodynamic cycle and the mechanical model of the main diesel cycle unit, respectively.
- the internal combustion energy 31 performs the isobaric process (1 -2) and the combustion takes place inside the combustion chamber 34.
- the adiabatic expansion process occurs through the movement of the piston 36 inside the cylinder 35, this piston by means of a connecting rod acts by rotating the shaft or crankshaft 37.
- the isochoric process (3-4) occurs, when the gas 32 flows out of the cylinder and proceeds to the regenerator.
- the adiabatic compression process (4-1) occurs shortly after the gas 33 is aspirated by the process (a-4) from the environment and compressed by piston 36 to the combustion chamber 34.
- FIGS 7 and 8 show the thermodynamic cycle and the mechanical model of the secondary unit respectively by pistons with closed circuit gas.
- the energy indicated by 41 of the regenerator 43 promotes the isochoric heating process (5-1) with the constant volume movement of the pistons of cylinders 45 and 46.
- the adiabatic expansion (1 -4) with the expansion of the gas by moving the piston of the cylinder 46, generating mechanical force in the driving force elements 412.
- the isothermal process of compression and heat rejection (4-5) with the gas being compressed by the piston of cylinder 46 forcing the gas to pass through the isothermal exchanger 44 by moving the piston of cylinder 45 and this process occurs with the aid of the turbocharger 47 moved electrically by the electric motor
- FIG. 9 shows the integrated internal combustion engine, formed by a main unit of Diesel cycle 53 powered by internal combustion with another unit with pistons with closed loop gas 54 powered by a regenerative process, the main unit being Diesel cycle is fed by internal combustion 31 containing a combustion chamber 34 which expands the combustion gas in an isobaric process and in the adiabatic sequence acting on the piston 36 inside the cylinder 35 acting by means of a connecting rod or shaft 37 which in turn instead produces useful work, and part of the kinetic energy of the shaft acts on piston 36 making an isochorical process with exhaust of the still hot gas through valve 39, feeding, transferring the energy to the regenerator which is an isochoric heat exchanger 43, and the exchanger of isochoric heat 43, responsible for regeneration, feeds the secondary unit to pistons with closed circuit gas 54, by means of u m isochorical process, acting on the gas displacement cylinder 45 which is an aid to the isochoric and isothermal processes, and on the mechanical force cylinder 46, responsible for useful work, which through a
- FIGs 10 and 11 show graphically all the processes that form the thermodynamic cycle of the internal combustion engine integrated with its mechanical model shown in figure 9, formed by a main internal combustion unit of Diesel cycle 53 and a secondary unit by pistons with closed circuit gas 54
- the engine has a thermodynamic cycle, the phenomena of which are generated from a combustion thermal source 61, which produces the expansion of the gas in the combustion chamber 34 of the main internal combustion unit of Diesel cycle 53 , which generates the energy input process of the thermodynamic cycle with an isobaric expansion (1 -2), where the gas increases the temperature with a constant pressure (Ph) from (T1) to (Tq), after the expansion process isobaric (1-2), the adiabatic expansion process (2-3) occurs, with the expansion of the gas inside the cylinder 35 by the movement of the piston 36, where the gas reduces the temperature from (Tq) to (T3) and reduces the pressure from (Ph) to (P3), after the adiabatic expansion process (2- 3), the isochoric regenerative process (3-4) occurs, with
- thermodynamic cycle of the internal combustion engine integrated by a main unit of internal combustion of Diesel cycle and a secondary unit with pistons with gas in closed circuit, in order to characterize a new complex machine with two integrated units that in the set operates through a cycle 611 formed essentially by five thermodynamic processes, by an isobaric energy input process (1 -2) by internal combustion 65, an adiabatic expansion process (2-3) with work 68, an isochoric process (3-4) regenerative 69, a heat rejection process by isothermal compression (4-5), 66, an isochoric heating process (5-1), 610 regenerated by the isobaric process (3-4) and still a process exhaust and suction system (4-a, a-4), so that the engine internal combustion engine performs the liquid work 67 resulting from the sum of all the processes that form the thermodynamic cycle
- Table 1 shows the four processes (1 -2, 2-3, 3-4, 4-1) that form the sparrow cycle of the diesel cycle internal combustion engine, and the processes (4-a , a-4) of exhaustion and aspiration, shown step by step, with an isobaric process, two adiabatic processes and an isochoric process.
- Table 2 shows the three processes (5-1, 1-4, 4-5) that form the cycle of the secondary unit with closed circuit pistons shown step by step, with an isochoric energy input process, a adiabatic process of useful work and an isothermal process of compression and heat rejection.
- Table 3 shows the five processes (1 -2, 2-3, 3-4, 4-5, 5-1) that form the thermodynamic cycle resulting from the internal combustion engine integrated, plus the processes of exhaustion and suction (4-a, a-4), formed by an internal combustion unit of diesel cement integrated to a secondary closed circuit unit with pistons, forming a mechanically and thermodynamically integrated unit, with input of energy by internal combustion, in an isobaric expansion process and heat rejection by an isothermal compression process.
- thermodynamic cycle of the integrated motor can be demonstrated by means of mathematical equations.
- (Qi) represents the total energy entering the system by combustion, in “Joule”
- (n) represents the number of moles belonging to the main unit of the Diesel cycle
- (R) represents the constant of perfect gases
- (T q ) represents the maximum gas temperature in “Kelvin” at point (2) of the process
- figure 10 represents the temperature at point (1) starts! of the isobaric process
- figure 10 represents the coefficient of adiabatic expansion.
- the temperature (Ti) at point (1) is the same! at the temperature (T3) of the point (3).
- the subsequent process of the cycle is an isochoric regenerative process (3-4), figure 10, where the gas of the Diesel cycle internal combustion unit transfers its energy to a regenerator, isochoric heat exchanger 43 and is represented by expression (c).
- Equation (c) (Q reg ) represents the total energy transferred to the regenerator by the isochoric process (3-4), in “Joule”, this energy will supply the secondary unit with closed circuit gas pistons.
- the heat rejection process of the piston secondary unit is an isothermal process (4-5), this isothermal compression process and heat rejection will be represented by the expression (h).
- each unit, the Diesel cycle unit and the closed circuit unit, closed system do not necessarily need to be the same, that is, the volumes (V1), (V3), the number of moles ( n), type of gas, etc., these need not be the same, such parameters do not alter the theoretical efficiency of the engine.
- Various parameters can be changed offering new features, such as power density, rotation of the units, without changing efficiency and the main concept.
- FIG. 17 A constructive model of the integrated engine, formed by a main unit of internal combustion of Diesel cycle and a piston unit with gas in closed circuit and its main elements is shown in figure 17.
- Integrated engines formed by an inferno combustion unit of Diesel cycle and a secondary piston unit with gas in closed circuit have numerous applications, one of which can be intended for vehicles, as an alternative to the combined cycles of the Diesel engine with Organic Rankine, another application would be in power generation plants, as it has the direct benefit of its ability to convert a greater amount of energy into work compared to traditional technologies and the current technologies of combined cycles.
- This integrated engine has a theoretical efficiency superior to the well-known Diesel cycle engines, Brayton, Rankine cycle and their combined cycles, as shown by the presented equations and by the efficiency equation (j).
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102018015947-0A BR102018015947A2 (pt) | 2018-08-03 | 2018-08-03 | Motor de combustão interna integrado formado por uma unidade principal de ciclo diesel e uma unidade secundária a pistões e processo de controle para o ciclo termodinâmico do motor |
| BRBR1020180159470 | 2018-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020024034A1 true WO2020024034A1 (pt) | 2020-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BR2019/050317 Ceased WO2020024034A1 (pt) | 2018-08-03 | 2019-08-05 | Motor de combustão interna integrado formado por uma unidade principal de ciclo diesel e uma unidade secundária a pistões e processo de controle para o ciclo termodinâmico do motor |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR102018015947A2 (pt) |
| WO (1) | WO2020024034A1 (pt) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2342103A1 (de) * | 1973-08-21 | 1975-03-20 | Hans Alexander Frhr Von Seld | Regenerative waermekraftmaschine |
| US6672063B1 (en) * | 2002-09-25 | 2004-01-06 | Richard Alan Proeschel | Reciprocating hot air bottom cycle engine |
| US20060123779A1 (en) * | 2003-10-01 | 2006-06-15 | Toyota Jidosha Kabushiki Kaisha | Exhaust heat recovery apparatus |
| US20060218919A1 (en) * | 2005-04-01 | 2006-10-05 | Toyota Jidosha Kabushiki Kaisha | Heat energy recovery apparatus |
| US20100251711A1 (en) * | 2007-10-03 | 2010-10-07 | Isentropic Limited | Energy Storage |
| US20140202147A1 (en) * | 2013-01-24 | 2014-07-24 | Christopher Michael Woodsum | Heat Engine with High Efficiency Attributable to Temperature Responsive Equilibrium Reactions and Method for Optimization |
| DE102015007079A1 (de) * | 2015-06-02 | 2016-12-08 | Georg Schreiber | Stirlingmotor mit aufgeteiltem Arbeitszyklus |
-
2018
- 2018-08-03 BR BR102018015947-0A patent/BR102018015947A2/pt not_active IP Right Cessation
-
2019
- 2019-08-05 WO PCT/BR2019/050317 patent/WO2020024034A1/pt not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2342103A1 (de) * | 1973-08-21 | 1975-03-20 | Hans Alexander Frhr Von Seld | Regenerative waermekraftmaschine |
| US6672063B1 (en) * | 2002-09-25 | 2004-01-06 | Richard Alan Proeschel | Reciprocating hot air bottom cycle engine |
| US20060123779A1 (en) * | 2003-10-01 | 2006-06-15 | Toyota Jidosha Kabushiki Kaisha | Exhaust heat recovery apparatus |
| US20060218919A1 (en) * | 2005-04-01 | 2006-10-05 | Toyota Jidosha Kabushiki Kaisha | Heat energy recovery apparatus |
| US20100251711A1 (en) * | 2007-10-03 | 2010-10-07 | Isentropic Limited | Energy Storage |
| US20140202147A1 (en) * | 2013-01-24 | 2014-07-24 | Christopher Michael Woodsum | Heat Engine with High Efficiency Attributable to Temperature Responsive Equilibrium Reactions and Method for Optimization |
| DE102015007079A1 (de) * | 2015-06-02 | 2016-12-08 | Georg Schreiber | Stirlingmotor mit aufgeteiltem Arbeitszyklus |
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| Publication number | Publication date |
|---|---|
| BR102018015947A2 (pt) | 2020-02-27 |
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