ES2333191B1 - HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. - Google Patents
HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. Download PDFInfo
- Publication number
- ES2333191B1 ES2333191B1 ES200703278A ES200703278A ES2333191B1 ES 2333191 B1 ES2333191 B1 ES 2333191B1 ES 200703278 A ES200703278 A ES 200703278A ES 200703278 A ES200703278 A ES 200703278A ES 2333191 B1 ES2333191 B1 ES 2333191B1
- Authority
- ES
- Spain
- Prior art keywords
- gases
- exchanger
- circuit
- housing
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007789 gas Substances 0.000 title claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000004033 plastic Substances 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 8
- 239000012809 cooling fluid Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
- F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Intercambiador de calor para gases, en especial de los gases de escape de un motor.Heat exchanger for gases, especially of the exhaust gases of an engine.
Comprende un circuito metálico (3) destinado a la circulación de los gases con intercambio de calor con un fluido de refrigeración, dispuesto en el interior de una carcasa de plástico (2), una placa de soporte metálica (8) acoplada a al menos uno de los extremos de dicho circuito (3), un reborde metálico (10) unido a dicha placa de soporte metálica (8) y acoplado en contacto directo con la carcasa de plástico (2).It comprises a metallic circuit (3) destined to the circulation of gases with heat exchange with a fluid cooling, arranged inside a housing plastic (2), a metal support plate (8) coupled to at least one of the ends of said circuit (3), a metal flange (10) attached to said metal support plate (8) and coupled in contact Direct with the plastic housing (2).
Se caracteriza por el hecho de que incluye medios de aislamiento térmico (12) de dicho al menos uno de los extremos de dicho circuito (3) al cual está fijada la placa de soporte metálica (8). Se consigue disminuir el nivel de temperatura en al menos uno de los extremos del circuito garantizando así la durabilidad del intercambiador, permitiendo además aumentar el rango de materiales plásticos a usar para la carcasa.It is characterized by the fact that it includes thermal insulation means (12) of said at least one of the ends of said circuit (3) to which the plate is fixed metal support (8). It is possible to lower the temperature level at least one end of the circuit thus guaranteeing the exchanger durability, also allowing to increase the range of plastic materials to use for the housing.
Description
Intercambiador de calor para gases, en especial de los gases de escape de un motor.Heat exchanger for gases, especially of the exhaust gases of an engine.
La presente invención se refiere a un intercambiador de calor para gases, en especial de los gases de escape de un motor.The present invention relates to a heat exchanger for gases, especially gases from engine exhaust
La invención se aplica especialmente en intercambiadores de recirculación de gases de escape de un motor (EGRC).The invention is especially applied in Exhaust gas recirculation exchangers of an engine (EGRC).
Una práctica bien establecida en el campo de la automoción consiste en proporcionar un sistema de recirculación de los gases de escape de un motor diesel o de un motor de combustión interna, que se conoce como EGR o "Exhaust Gas Recycling", a fin de mezclar estos gases con el aire de admisión, puesto que la presencia de los gases de escape en la mezcla disminuye la producción de óxidos de nitrógeno (NOx).A well established practice in the field of automotive consists of providing a recirculation system of the exhaust gases of a diesel engine or a combustion engine internal, which is known as EGR or "Exhaust Gas Recycling", to in order to mix these gases with the intake air, since the presence of exhaust gases in the mixture decreases the production of nitrogen oxides (NOx).
Antes de ser mezclados con el aire de admisión, los gases de escape pueden ser enfriados en un intercambiador de calor (EGRC o "Exhaust Gas Recycling Cooler") instalado en el bucle del sistema EGR, al objeto de mejorar la eficiencia del sistema.Before being mixed with the intake air, Exhaust gases can be cooled in a heat exchanger heat (EGRC or "Exhaust Gas Recycling Cooler") installed in the EGR system loop, in order to improve the efficiency of the system.
En el bucle del sistema existe además una válvula (válvula EGR) que controla el paso de gases de escape a través del mismo.In the system loop there is also a valve (EGR valve) that controls the passage of exhaust gases to through it.
El intercambiador de calor propiamente dicho puede tener distintas configuraciones: por ejemplo, puede consistir en una carcasa tubular en cuyo interior se disponen una serie de tubos paralelos para el paso de los gases, circulando el refrigerante por la carcasa, exteriormente a los tubos; en otra realización, el intercambiador consta de una serie de placas paralelas que constituyen las superficies de intercambio de calor, de manera que los gases de escape y el refrigerante circulan entre dos placas, en capas alternadas.The heat exchanger itself it can have different configurations: for example, it can consist in a tubular housing inside which a series of parallel tubes for the passage of gases, circulating the refrigerant through the housing, externally to the tubes; in other embodiment, the exchanger consists of a series of plates parallel that constitute the heat exchange surfaces, so that the exhaust gases and the refrigerant circulate between two plates, in alternating layers.
La carcasa está unida a los conductos de la línea de recirculación mediante unos medios de conexión que pueden consistir en una conexión en V o bien en un reborde periférico de conexión o brida, dependiendo del diseño de la línea de recirculación donde está ensamblado el intercambiador.The housing is connected to the ducts of the recirculation line through connection means that can consist of a V connection or a peripheral flange of connection or flange, depending on the design of the line recirculation where the exchanger is assembled.
En el caso en que se utilice un reborde periférico de conexión o brida, son posibles dos diseños diferentes. El reborde periférico puede estar ensamblado junto con un depósito de gas, de manera que el depósito de gas es una pieza intermedia entre la carcasa y el reborde. Además, el reborde también puede estar ensamblado directamente a la carcasa. Este último diseño corresponde frecuentemente a los casos donde el intercambiador está unido directamente a una válvula EGR.In the case where a flange is used connection peripheral or flange, two different designs are possible. The peripheral flange can be assembled together with a tank of gas, so that the gas tank is an intermediate piece between the housing and the flange. In addition, the flange can also be assembled directly to the housing. This last design corresponds frequently to cases where the exchanger is attached directly to an EGR valve.
En algunas aplicaciones de circuitos EGR, es necesario enfriar la válvula EGR. En este caso, el diseño más usual incluye un conducto by-pass que conduce el fluido de refrigeración, que circula a través del intercambiador EGR, hacia o desde la válvula EGR. En el caso en que el intercambiador EGR está ensamblado al circuito EGR a través de un reborde periférico, el conducto by-pass del fluido de refrigeración debe ser fabricado a través de dicho reborde periférico. Según otra realización, el conducto by-pass es externo y conecta la carcasa con la válvula.In some applications of EGR circuits, it is it is necessary to cool the EGR valve. In this case, the most usual design includes a by-pass conduit that conducts fluid from refrigeration, which circulates through the EGR exchanger, to or from the EGR valve. In the case where the EGR exchanger is assembled to the EGR circuit through a peripheral flange, the by-pass duct of the cooling fluid must be manufactured through said peripheral flange. According to another embodiment, the by-pass duct is external and connect the housing with the valve.
Asimismo, el circuito de gases puede ser de tipo lineal en el cual la entrada y salida de gases están dispuestas en extremos opuestos; o bien puede ser en forma de "U" en el cual la entrada y salida de gases están dispuestas adyacentes en un mismo extremo abierto, estando el extremo opuesto cerrado, y definiendo un paso de ida y un paso de retorno. En este último caso, el extremo cerrado para el retorno de los gases suele estar constituido por un depósito de gas cerrado.Also, the gas circuit can be of type linear in which the inlet and outlet of gases are arranged in opposite ends; or it can be in the form of "U" in which the inlet and outlet of gases are arranged adjacent in a same open end, the opposite end being closed, and defining a one-way step and a return step. In this last case, the closed end for the return of gases is usually constituted by a closed gas tank.
Usualmente, los intercambiadores de calor EGR son metálicos, generalmente fabricados de acero inoxidable o aluminio. Tanto los intercambiadores de haz de conductos como los de placas apiladas, presentan todos sus componentes metálicos, de modo que están ensamblados mediante medios mecánicos y luego soldados en horno o soldados por arco o con láser para asegurar un nivel de estanqueidad requerido para esta aplicación.Usually, EGR heat exchangers they are metallic, usually made of stainless steel or aluminum. Both the duct beam exchangers and those of stacked plates, have all their metal components, so which are assembled by mechanical means and then welded in furnace or arc or laser welded to ensure a level of tightness required for this application.
Una acción para reducir el coste del intercambiador de calor EGR es sustituir la carcasa de acero inoxidable por otro material, tanto si este material tiene un coste bajo como si permite integrar otras funciones, tales como la integración de los conductos del fluido de refrigeración o de los soportes de sujeción a una superficie del entorno motor donde será fijado el intercambiador.An action to reduce the cost of EGR heat exchanger is to replace the steel housing stainless by another material, whether this material has a cost low as if it allows integrating other functions, such as the integration of the cooling fluid ducts or mounting brackets to a surface of the motor environment where it will be Fixed the exchanger.
Son conocidos intercambiadores de calor de haz de conductos que comprenden una carcasa de material plástico. Las carcasas de plástico tienen la ventaja de que se reduce el coste del producto final ya que permite integrar los conductos del circuito del fluido de refrigeración y los soportes de fijación a una superficie del entorno motor.Beam heat exchangers are known of conduits comprising a plastic housing. The plastic housings have the advantage that the cost of final product since it allows to integrate the conduits of the circuit of the cooling fluid and fixing brackets to a surface of the motor environment.
Son conocidas patentes referentes a intercambiadores EGR con carcasa de plástico que describen la unión entre las partes metálicas y de plástico, asegurando una estanqueidad del fluido de refrigeración para evitar cualquier fuga.Patents are known regarding EGR exchangers with plastic housing describing the joint between the metal and plastic parts, ensuring a sealing of the cooling fluid to avoid any leakage.
Uno de los principales puntos de este desarrollo es la máxima temperatura que el plástico debe resistir. Este tipo de intercambiadores suele comprender un reborde metálico unido a la placa de soporte, y en contacto directo con la carcasa de plástico, pudiendo estar la válvula EGR o by-pass directamente ensamblada a este reborde o a través de un cuerpo de conexión intermedio. En consecuencia, la temperatura elevada puede ser transferida desde las paredes de la válvula o del cuerpo de conexión intermedio al reborde y por tanto al plástico. Esto implica usar un material plástico para la carcasa que resista una alta temperatura, por lo que se limita el rango de plásticos a usar y también implica un aumento considerable del coste.One of the main points of this development It is the maximum temperature that the plastic must withstand. This type of exchangers usually comprises a metal flange attached to the support plate, and in direct contact with the plastic housing, the EGR valve or bypass can be directly assembled to this flange or through a connecting body intermediate. Consequently, the elevated temperature can be transferred from the walls of the valve or the body of intermediate connection to the flange and therefore to the plastic. This involves using a plastic material for the housing that resists a high temperature, so the range of plastics to be used is limited and it also implies a considerable increase in cost.
Para proporcionar una estanqueidad del flujo de gas entre la válvula y el intercambiador se coloca una junta de estanqueidad entre el reborde metálico y la válvula o el cuerpo de conexión intermedio. Esta junta es generalmente metálica, por ejemplo de acero, para aplicaciones EGRC. Dicha junta metálica también presenta una alta conductividad de calor, por lo que el calor transferido desde el material en contacto con el gas no disminuye.To provide a tightness of the flow of gas between the valve and the exchanger is placed a gasket of tightness between the metal flange and the valve or the body of intermediate connection This joint is usually metallic, for Steel example, for EGRC applications. Said metal seal It also has a high heat conductivity, so the heat transferred from the material in contact with the gas not decreases
El objetivo del intercambiador de calor para gases, en especial de los gases de escape de un motor de la presente invención es solventar los inconvenientes que presentan los intercambiadores conocidos en la técnica, proporcionando unos medios de aislamiento térmico que permiten disminuir el nivel de temperatura en al menos uno de los extremos del circuito al cual está fijada la placa de soporte metálica, garantizando así la durabilidad del intercambiador.The purpose of the heat exchanger for gases, especially the exhaust gases of an engine of the present invention is to solve the drawbacks of exchangers known in the art, providing some thermal insulation means that allow to reduce the level of temperature at least one of the ends of the circuit at which the metal support plate is fixed, thus guaranteeing Exchanger durability.
El intercambiador de calor para gases, en especial de los gases de escape de un motor, objeto de la presente invención, es del tipo que comprende un circuito metálico destinado a la circulación de los gases con intercambio de calor con un fluido de refrigeración, dispuesto en el interior de una carcasa de plástico, una placa de soporte metálica acoplada a al menos uno de los extremos de dicho circuito, un reborde metálico unido a dicha placa de soporte metálica y acoplado en contacto directo con la carcasa de plástico, y se caracteriza por el hecho de que incluye medios de aislamiento térmico de dicho al menos uno de los extremos de dicho circuito al cual está fijada la placa de soporte metálica.The heat exchanger for gases, in special exhaust gas of an engine, object of the present invention is of the type comprising a metal circuit intended to the circulation of gases with heat exchange with a cooling fluid, arranged inside a housing plastic, a metal support plate coupled to at least one of the ends of said circuit, a metal flange attached to said metal support plate and coupled in direct contact with the plastic housing, and is characterized by the fact that it includes thermal insulation means of said at least one of the ends of said circuit to which the support plate is fixed metallic
De este modo, los medios de aislamiento térmico de la invención permiten disminuir el nivel de temperatura, garantizando así la durabilidad del intercambiador EGR, y, lo que es más importante, permite aumentar el rango de materiales plásticos a usar para la carcasa. Asimismo, el coste de producción se ve reducido.Thus, thermal insulation means of the invention allow to lower the temperature level, thus guaranteeing the durability of the EGR exchanger, and, what is more important, it allows to increase the range of plastic materials to use for housing. Also, the production cost is seen reduced.
Según una realización de la invención, una válvula EGR o by-pass está ensamblada directamente a dicho reborde metálico o a través de un cuerpo de conexión intermedio.According to an embodiment of the invention, a EGR or bypass valve is assembled directly to said metal flange or through a connecting body intermediate.
Dicho cuerpo de conexión intermedio es un componente opcional y puede presentar diferentes configuraciones en función del entorno motor.Said intermediate connection body is a optional component and can present different configurations in function of the motor environment.
Preferentemente, los medios de aislamiento térmico consisten en una junta de estanqueidad dispuesta entre dicho reborde metálico y dicha válvula o dicho cuerpo de conexión intermedio.Preferably, the isolation means thermal consist of a gasket arranged between said metal flange and said valve or said connecting body intermediate.
Ventajosamente, la junta de estanqueidad está fabricada de un material aislante térmico, disminuyendo así la transferencia de calor desde la válvula o el cuerpo de conexión intermedio hasta la carcasa de plástico.Advantageously, the seal is made of a thermal insulating material, thus reducing the heat transfer from the valve or connecting body intermediate to the plastic housing.
Preferiblemente, la junta de estanqueidad está fabricada de mica. Este material es capaz de resistir una alta temperatura.Preferably, the seal is Made of mica. This material is able to withstand high temperature.
Ventajosamente, la junta de estanqueidad es susceptible de resistir una alta temperatura de hasta 950ºC aproximadamente, permitiendo disminuir notablemente la temperatura en contacto con la carcasa de plástico.Advantageously, the seal is susceptible to withstand a high temperature of up to 950ºC approximately, allowing the temperature to decrease significantly in contact with the plastic housing.
Los beneficios de usar este tipo de juntas han sido evaluadas mediante testeos y simulaciones.The benefits of using these types of joints have been evaluated through tests and simulations.
Con el fin de facilitar la descripción de cuanto se ha expuesto anteriormente se adjuntan unos dibujos en los que, esquemáticamente y tan sólo a título de ejemplo no limitativo, se representa un caso práctico de realización del intercambiador de calor para gases de la invención, en los cuales:In order to facilitate the description of how much It has been exposed above are attached some drawings in which, schematically and only by way of non-limiting example, represents a practical case of realization of the exchanger of heat for gases of the invention, in which:
la figura 1 es una vista en perspectiva y en explosión de un intercambiador de calor para gases de la invención; yFigure 1 is a perspective view and in explosion of a gas heat exchanger of the invention; Y
la figura 2 es una vista en alzado de la junta de estanqueidad de material aislante térmico de la invención.Figure 2 is an elevation view of the joint sealing of thermal insulating material of the invention.
Haciendo referencia a las figuras 1 y 2, el intercambiador de calor 1 está constituido por una carcasa de plástico 2 que contiene en su interior un haz de conductos paralelos 3, destinados al paso de los gases a enfriar. Dentro de la carcasa 2, exteriormente a los conductos 3, circula un fluido de refrigeración, desde una entrada 4 a una salida 5.Referring to figures 1 and 2, the heat exchanger 1 is constituted by a housing of plastic 2 that contains a bundle of parallel ducts inside 3, intended for the passage of gases to cool. Inside the housing 2, externally to the conduits 3, circulates a fluid of cooling, from an input 4 to an output 5.
En este ejemplo, la carcasa 2 es de sección sensiblemente rectangular y se encuentra cerrada por uno de sus extremos, para alojar en su interior el haz de conductos 3 que, en este caso es del tipo en forma de "U", es decir la entrada 6 y salida 7 de dichos conductos 3 están dispuestas en un mismo lado en el extremo abierto de la carcasa 2, y definiendo un paso de ida y un paso de retorno de los gases a enfriar.In this example, housing 2 is sectional substantially rectangular and is closed by one of its ends, to accommodate inside the bundle of ducts 3 which, in this case is of the "U" type, that is, entry 6 and outlet 7 of said ducts 3 are arranged on the same side in the open end of the housing 2, and defining a one-way step and a return step of the gases to cool.
El haz de conductos 3 está fijado por su extremo libre a una placa de soporte metálica 8, la cual presenta una pluralidad de orificios para la colocación de los respectivos conductos 3, y por su extremo cerrado a un depósito de gas metálico 9.The beam of conduits 3 is fixed at its end free to a metal support plate 8, which has a plurality of holes for the placement of the respective ducts 3, and at its closed end to a metal gas tank 9.
Dicha placa de soporte 8 está unida a un reborde metálico 10, el cual está acoplado en contacto directo con el extremo abierto de la carcasa de plástico 2 mediante medios de tornillería y una junta de plástico 11 para garantizar la estanqueidad del fluido de refrigeración.Said support plate 8 is attached to a flange metallic 10, which is coupled in direct contact with the open end of the plastic housing 2 by means of screws and a plastic gasket 11 to ensure the sealing of the cooling fluid.
También se prevé la colocación de una válvula EGR o by-pass (no representada) ensamblada a dicho reborde metálico 10.It is also planned to place a valve EGR or by-pass (not shown) assembled to said metal flange 10.
Además, para proporcionar una estanqueidad del flujo de gas entre la válvula y el intercambiador 1 se prevé una junta de estanqueidad 12 dispuesta entre el reborde metálico 10 y la válvula.In addition, to provide a tightness of the gas flow between the valve and the exchanger 1 a seal 12 arranged between the metal flange 10 and the valve.
Dicha junta de estanqueidad 12 está fabricada de un material aislante térmico, preferentemente mica, disminuyendo así la transferencia de calor desde la válvula a la carcasa de plástico 2. Asimismo, dicha junta de estanqueidad 12 presenta una forma coincidente con la forma del reborde 10, tal como puede apreciarse en la figura 2.Said sealing gasket 12 is made of a thermal insulating material, preferably mica, decreasing thus the heat transfer from the valve to the housing of plastic 2. Likewise, said seal 12 has a shape coinciding with the shape of the flange 10, as it can can be seen in figure 2.
La junta de estanqueidad 12 es susceptible de resistir una alta temperatura de hasta 950ºC aproximadamente, permitiendo disminuir la temperatura en contacto con la carcasa de plástico 2 hasta alrededor de 50ºC.The seal 12 is susceptible to withstand a high temperature of up to approximately 950 ° C, allowing to lower the temperature in contact with the housing of plastic 2 up to about 50 ° C.
Aunque en este ejemplo se ha descrito un intercambiador de haz de tubos paralelos, la invención también puede aplicarse a intercambiadores de placas apiladas. Asimismo, en ambos casos, el circuito de gases puede ser del tipo en forma de "U" (la entrada y salida de gases dispuestas en un mismo extremo) o bien puede ser de tipo lineal (la entrada y salida de gases dispuestas en extremos opuestos).Although in this example a parallel tube beam exchanger, the invention can also apply to stacked plate exchangers. Also, in both cases, the gas circuit may be of the "U" type (the entry and exit of gases arranged at the same end) or it can be of linear type (the entrance and exit of arranged gases at opposite ends).
Claims (6)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200703278A ES2333191B1 (en) | 2007-12-12 | 2007-12-12 | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. |
| PCT/EP2008/053893 WO2008125485A1 (en) | 2007-04-13 | 2008-04-01 | Heat exchanger for gas and method for making same |
| EP08735663.0A EP2137477B1 (en) | 2007-04-13 | 2008-04-01 | Heat exchanger for gas |
| KR1020097021124A KR101554048B1 (en) | 2007-04-13 | 2008-04-01 | Heat exchanger for gas and method for making same |
| EP08860155A EP2232184A1 (en) | 2007-12-12 | 2008-11-26 | Heat exchanger for gases, in particular the exhaust gases of an engine |
| PCT/EP2008/066194 WO2009074452A1 (en) | 2007-12-12 | 2008-11-26 | Heat exchanger for gases, in particular the exhaust gases of an engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200703278A ES2333191B1 (en) | 2007-12-12 | 2007-12-12 | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2333191A1 ES2333191A1 (en) | 2010-02-17 |
| ES2333191B1 true ES2333191B1 (en) | 2011-01-03 |
Family
ID=40548020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200703278A Expired - Fee Related ES2333191B1 (en) | 2007-04-13 | 2007-12-12 | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2232184A1 (en) |
| ES (1) | ES2333191B1 (en) |
| WO (1) | WO2009074452A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3512842A1 (en) * | 1985-04-10 | 1986-10-16 | Feodor Burgmann Dichtungswerke Gmbh & Co, 8190 Wolfratshausen | POETRY |
| DE20316688U1 (en) * | 2003-10-29 | 2004-03-11 | Behr Gmbh & Co. Kg | heat exchangers |
| WO2007048603A2 (en) * | 2005-10-26 | 2007-05-03 | Behr Gmbh & Co. Kg | Heat exchanger, method for the production of a heat exchanger |
| US20110056652A1 (en) * | 2006-01-23 | 2011-03-10 | Behr Gmbh & Co. Kg | Heat exchanger |
| DE202006011446U1 (en) * | 2006-07-26 | 2006-10-12 | Carl Freudenberg Kg | High temperature sealing of mica material, useful for sealing pipe connections in exhaust systems of combustion engines, comprises a coiled mica course material lying radially to one other, where the sealing is provided as a sealing ring |
-
2007
- 2007-12-12 ES ES200703278A patent/ES2333191B1/en not_active Expired - Fee Related
-
2008
- 2008-11-26 WO PCT/EP2008/066194 patent/WO2009074452A1/en active Application Filing
- 2008-11-26 EP EP08860155A patent/EP2232184A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009074452A1 (en) | 2009-06-18 |
| ES2333191A1 (en) | 2010-02-17 |
| EP2232184A1 (en) | 2010-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2718387C2 (en) | System (versions) and method for cooler of exhaust gas recirculation system | |
| US10180287B2 (en) | Exhaust gas cooler | |
| ES2640381T3 (en) | Heat exchanger, in particular supercharged air cooler | |
| ES2300163B1 (en) | SYSTEM FOR THE CONTROL OF GAS CIRCULATION, IN SPECIAL OF THE EXHAUST GASES OF A MOTOR. | |
| ES2209618B1 (en) | HEAT EXCHANGER FOR AN "EGR" SYSTEM WITH AN INTEGRATED DERIVATION CONDUCT. | |
| ES2407905A2 (en) | Stacked plate heat exchanger | |
| ES2409534A2 (en) | Heat exchanger for gases, in particular for the exhaust gases of an engine | |
| JP2011241789A (en) | Exhaust gas recirculation device for internal combustion engine | |
| ES2333191B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. | |
| ES2641650T3 (en) | Heat exchanger for gases, especially engine exhaust | |
| ES2324071B1 (en) | HEAT EXCHANGER FOR GASES, AND ITS CORRESPONDING MANUFACTURING PROCEDURE. | |
| ES2332253B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. | |
| ES2304092B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. | |
| ES2553898T3 (en) | Crankcase for intake module, especially for motor vehicle thermal engine intake module, and intake module comprising such crankcase | |
| ES2392302B1 (en) | HEAT EXCHANGER OF STACKED PLATES. | |
| ES2397882B1 (en) | HEAT EXCHANGER OF STACKED PLATES. | |
| ES2336400B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. | |
| ES2399036B1 (en) | HEAT EXCHANGER FOR GASES IN SPECIAL EXHAUST GASES OF A MOTOR. | |
| ES2334480B1 (en) | HEAT EXCHANGER FOR GASES. | |
| ES2353793B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF A MOTOR, AND ITS CORRESPONDING MANUFACTURING PROCEDURE. | |
| ES2388156A1 (en) | Gas heat exchanger, in particular for the exhaust gases of an engine | |
| ES2281268B1 (en) | HEAT EXCHANGER OF STACKED PLATES, AND ITS CORRESPONDING MANUFACTURING PROCEDURE. | |
| ES2385952B1 (en) | HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE. | |
| ES2323920B1 (en) | MANUFACTURING PROCEDURE OF A STACKED PLATE HEAT EXCHANGER PROVIDED WITH A BY-PASS AND EXCHANGER DRIVING OBTAINED BY MEANS OF THIS PROCEDURE. | |
| ES2702771A1 (en) | COOLING AND COVERING NUCLEUS ASSEMBLY FOR A HEAT EXCHANGER AVAILABLE IN A MOTOR BLOCK OR TRANSMISSION BLOCK OF A VEHICLE AUTOMOBILE (Machine-translation by Google Translate, not legally binding) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20100217 Kind code of ref document: A1 |
|
| FG2A | Definitive protection |
Ref document number: 2333191 Country of ref document: ES Kind code of ref document: B1 Effective date: 20101220 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20240326 |