Abrégé

In an embodiment, a silencer of a vehicle's exhaust system for a fuel cell system is capable of reducing high-frequency noise and reducing noise generated from a drain, wherein the silencer includes a housing having an inlet and an outlet, a perforated tube located in the housing, the perforated tube having a plurality of through-holes, at least one baffle interposed between the housing and the perforated tube to partition a space between the housing and the perforated tube into a plurality of resonance chambers, and a cover installed in the housing to support the perforated tube and to partition the most downstream resonance chamber.

Classes IPC  ?

• F01N 1/02 - Silencieux caractérisés par leur principe de fonctionnement utilisant la résonance
• B60L 50/72 - Détails de construction des piles à combustible spécialement adaptées aux véhicules électriques
• F01N 1/04 - Silencieux caractérisés par leur principe de fonctionnement utilisant la résonance comportant des matériaux absorbant le son dans des chambres de résonance
• F01N 1/08 - Silencieux caractérisés par leur principe de fonctionnement réduisant l'énergie des gaz évacués par étranglement ou tourbillon

Abrégé

A reducing agent mixing device, according to the present invention, comprises: an exhaust pipe through which exhaust gas discharged from an engine passes and to which a catalyst is mounted at the rear end thereof; an injector which injects a reducing agent into a point spaced a predetermined distance from the point where the catalyst is mounted toward the leading end, in the internal flow path of the exhaust pipe; and a swirl unit mounted between the injector and the catalyst in the internal flow path of the exhaust pipe so that a part of the exhaust gas flows in a counterclockwise direction and another part of the exhaust gas flows in a clockwise direction. When using the reducing agent mixing device having the swirl unit for bidirectional rotation, according to the present invention, there is an advantage of preventing the phenomenon of reducing agent particles being collected in the form of droplets on the inner wall of the exhaust pipe while ensuring a high mixing ratio of the exhaust gas and the reducing agent.

Classes IPC  ?

• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01N 3/28 - Structure des réacteurs catalytiques

Abrégé

A wax actuator according to the present invention comprises: a wax chamber, the interior of which is filled with wax; a withdrawal pin mounted on the wax chamber so as to protrude when the pressure inside the wax chamber increases; an inner case covering the part of the wax chamber, on which the withdrawal pin is mounted, and having an inner space extending in the direction in which the withdrawal pin is withdrawn; an inner spring installed inside the inner case so as to apply an elastic force to the withdrawal pin in such a direction that the withdrawal pin is introduced into the wax chamber; an outer case coupled integrally with the wax chamber so as to cover the part of the wax chamber, on which the inner case is mounted, the outer case having an inner space extending in the direction in which the withdrawal pin is withdrawn; an outer spring installed inside the outer case so as to apply an elastic force to the inner case in such a direction that the inner case is forced against the wax chamber; and a pushrod elongated in the longitudinal direction of the withdrawal pin such that one longitudinal side of the pushrod is coupled to the inner case, while the other longitudinal side thereof protrudes to the outside of the outer case. The inner spring has a spring constant configured to be larger than that of the outer spring.

Classes IPC  ?

• F01N 1/16 - Silencieux caractérisés par leur principe de fonctionnement par utilisation de parties mobiles
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement
• F16K 17/04 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort

Abrégé

A variable exhaust valve assembly for a vehicle includes an exhaust housing, a power transmission device that transmits rotational power, a shaft that extends through the exhaust housing and is coupled with a valve so as to open and close the exhaust housing, and a heat shielding unit to reduce heat transfer between the power transmission device and the exhaust housing. The power transmission device is configured to regulate an opening degree of the valve. The variable exhaust valve assembly is improved in durability by minimizing damage to power transmission caused by high-temperature heat of exhaust gas, and reducing vibration transmitted to the power transmission device.

Classes IPC  ?

• F02D 9/10 - Obturateurs d'étranglement spécialement adaptés à cet effetAménagements de ces obturateurs sur les conduits comportant des volets pivotants
• F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
• F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir
• F01N 13/18 - Structure facilitant la fabrication, l'assemblage ou le démontage
• F02D 9/04 - Commande des moteurs par étranglement des conduits d'amenée de l'air ou du mélange air-combustible ou par étranglement des conduits d'échappement par étranglement des conduits d'échappement
• F01N 13/14 - Silencieux ou dispositifs d'échappement caractérisés par les aspects de structure comportant une isolation thermique
• F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
• F16K 1/22 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation traverse le corps de soupape, p. ex. régulateurs à papillon
• F16K 1/226 - Forme ou disposition du joint d'étanchéité
• F02M 26/54 - Actionneurs rotatifs, p. ex. moteurs pas à pas
• F02M 26/70 - Soupapes à clapetValves rotativesSoupapes à coulisseSoupapes souples
• F02M 26/73 - Logements avec des moyens pour chauffer ou refroidir la soupape RGE
• F02M 26/74 - Protection contre les dommages, p. ex. boucliers de protection
• F02M 26/16 - Aménagement ou disposition des passages RGE, p. ex. par rapport à des pièces spécifiques du moteur ou pour l’incorporation d’accessoires par rapport au système d’échappement avec des soupapes RGE situées au raccordement ou près du raccordement au système d’échappement
• F02M 26/67 - GoujonsTigesRessortsPalliersJoints d’étanchéitéBranchements à des actionneurs

Abrégé

The present invention relates to an exhaust heat recovery apparatus having a dual valve. According to one embodiment of the present invention, provided is an exhaust heat recovery apparatus comprising: a heat exchanger for increasing the temperature of cooling water by exchanging heat with the exhaust heat of an exhaust gas; a housing having an inner flow path formed therein so as to receive the exhaust gas from the outside such that the exhaust gas flows therethrough; a valve assembly including a first valve unit for selectively blocking one from among a heat exchange path of the heat exchanger and the inner flow path of the housing, and a second valve unit independently rotating with respect to the first valve unit so as to open and close the inner flow path of the housing; and a push rod for moving the first valve unit in the direction in which the first valve unit blocks the flow of the heat exchange path according to the transmission of external force to the first valve unit.

Classes IPC  ?

• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement
• F01N 1/16 - Silencieux caractérisés par leur principe de fonctionnement par utilisation de parties mobiles
• F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape
• F01P 7/14 - Commande du débit de l'agent de refroidissement l'agent de refroidissement étant un liquide

Abrégé

Disclosed herein are a common flow field type fuel cell separator, a fuel cell separator assembly, and a fuel cell stack, including a flow field connected to a manifold in which an inlet and an outlet for each of hydrogen, air, and cooling water are formed, and configured such that flows of the hydrogen, the air, and the cooling water are free from interfering with each other.

Classes IPC  ?

• H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux
• H01M 8/2483 - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission internes
• H01M 8/0258 - CollecteursSéparateurs, p. ex. séparateurs bipolairesInterconnecteurs caractérisés par la configuration des canaux, p. ex. par le champ d’écoulement du réactif ou du réfrigérant
• H01M 8/0206 - Métaux ou alliages
• H01M 8/1004 - Éléments à combustible avec électrolytes solides caractérisés par les ensembles membrane-électrodes [MEA]
• H01M 8/0254 - CollecteursSéparateurs, p. ex. séparateurs bipolairesInterconnecteurs caractérisés par la forme ondulé ou dentelé
• H01M 8/0228 - Composites sous forme de produits en couches ou enrobés
• H01M 8/0267 - CollecteursSéparateurs, p. ex. séparateurs bipolairesInterconnecteurs comprenant des moyens de chauffage ou de refroidissement, p. ex. des éléments de chauffage ou des canaux d’écoulement du réfrigérant
• H01M 8/0273 - Moyens d’étanchéité ou de support autour des électrodes, des matrices ou des membranes avec des moyens d’étanchéité ou de support sous forme d’un cadre

Abrégé

A structure pof muffler may include a housing which has a space therein, and has a first side connected to an inlet pipe into which exhaust gas flows, a first baffle which divides an interior of the housing into a front chamber and an intermediate chamber connected to the inlet pipe, a second baffle which divides the interior of the housing into a rear chamber and the intermediate chamber connected to the inlet pipe, and a discharge pipe which is mounted to penetrate the first baffle and the second baffle, and mounted such that a first end of the discharge pipe is positioned in the rear chamber, and a second end of the discharge pipe extends through the front chamber and penetrates the housing.

Classes IPC  ?

• F01N 1/08 - Silencieux caractérisés par leur principe de fonctionnement réduisant l'énergie des gaz évacués par étranglement ou tourbillon
• F01N 1/04 - Silencieux caractérisés par leur principe de fonctionnement utilisant la résonance comportant des matériaux absorbant le son dans des chambres de résonance
• F01N 1/24 - Silencieux caractérisés par leur principe de fonctionnement par utilisation des matériaux absorbant le son
• G10K 11/16 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
• F01N 1/00 - Silencieux caractérisés par leur principe de fonctionnement
• F01N 1/02 - Silencieux caractérisés par leur principe de fonctionnement utilisant la résonance
• G10K 11/172 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets de résonance

Abrégé

A single multi-functional position holder is positioned in a receiving space of a housing to implement multiple functions of: satisfying a limitation on the height of a connector by making contact with an insertion portion and a concentric mounting portion of a connector assembly assembled through a curling process; increasing durability to absorb an internal load attributable to the curling process, by making tight contact with the housing; and preventing shaking of a PCB assembly due to a disturbance by restricting the PCB assembly to hold a PCB, thereby reducing the number of component parts of the connector, the process steps, and the cost. In particular, the multi-functional position holder is fixed in the housing without welding so that it is possible to remove a welding process from an assembling process of the connector.

Classes IPC  ?

• H05K 1/00 - Circuits imprimés
• H01R 13/6466 - Moyens pour empêcher la diaphonie en ajoutant des éléments capacitifs sur des substrats, p. ex. des cartes de circuits imprimés
• H01R 12/58 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour insertion dans des trous
• H01R 13/15 - Broches, lames ou alvéoles ayant un ressort indépendant pour produire ou améliorer la pression de contact

Abrégé

A reductant mixing device according to the present invention comprises: a housing having an exhaust gas inflow part provided at a front end side thereof and a selective catalytic reduction catalyst provided at a rear end side thereof; a reductant injection nozzle for spraying a reductant aqueous solution between the exhaust gas inflow part and the selective catalytic reduction catalyst in an inner passage of the housing; and a swirl unit mounted between the exhaust gas inflow part and the selective catalytic reduction catalyst in the inner passage of the housing so as to guide, in a spiral shape, the flow direction of the fluid in which exhaust gas and reductant aqueous solution particles are mixed, wherein a cross sectional area of a passage of the swirl unit is formed to be smaller than a cross sectional area of the passage of the housing. If the reductant mixing device according to the present invention is used, the exhaust gas flows in a spiral shape when the reductant aqueous solution is mixed in the exhaust gas discharged from a vehicle engine, a vortex is generated while the exhaust gas flows along a spiral flow path, such that the reductant aqueous solution can be more uniformly mixed in the exhaust gas, and a mixing space having a long pipe shape is provided in a spatially compressed mixing form such that the device can be mounted even in a narrow available space.

Classes IPC  ?

• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01N 3/28 - Structure des réacteurs catalytiques
• F01N 13/08 - Autres aménagements ou adaptations des tubulures d'échappement

Abrégé

A single multi-functional position holder (10) of the present invention is positioned in a receiving space (1-1) of a housing (1) to implement multiple functions of: satisfying a limitation on the height of a connector by making contact with an insertion part (5-2) and a concentric mounting part (5-3) of a connector assembly (5) that is assembled by a curling process; increasing durability to absorb an internal load according to the curling process, which is applied during the curling process, while being brought close to the housing (1); and preventing shaking of a PCB assembly (3) due to a disturbance by restricting the PCB assembly (3) to hold a PCB, thereby reducing the number of components of the connector, the process, and the cost. In particular, the multi-functional position holder (10) is secured in the housing (1) without welding so that it is possible to remove a welding process from an assembly process of the connector.

Classes IPC  ?

• H01R 12/51 - Connexions fixes pour circuits imprimés rigides ou structures similaires
• H01R 13/6466 - Moyens pour empêcher la diaphonie en ajoutant des éléments capacitifs sur des substrats, p. ex. des cartes de circuits imprimés

Abrégé

A method for manufacturing a catalytic converter according to the present invention comprises: a first step for measuring the outer diameter of a catalyst; a second step for measuring the weight of a sheet-shaped mat cut at a regular size; a third step for seating the catalyst on the upper surface of the mat to wrap the mat around the outer circumferential surface of the catalyst; a fourth step for measuring the inner diameter of a can pipe and then inserting the catalyst wrapped with the mat into the can pipe; and a fifth step for calculating the gap bulk between the catalyst and the can pipe, and the density of the mat, and then pressurizing and downsizing the can pipe such that the GBD value thereof falls within a reference range.

Classes IPC  ?

• F01N 3/28 - Structure des réacteurs catalytiques
• G06F 17/10 - Opérations mathématiques complexes

Abrégé

An exhaust heat recovery apparatus may include a bypass valve that is rotatably provided on a bypass path through which a high-temperature exhaust gas passes to open or close the bypass path, a heat exchanger that is communicatively connected to the bypass path to allow heat exchange to be performed between the high-temperature exhaust gas supplied from the bypass path and a low-temperature coolant introduced through a coolant inlet when the bypass path is closed, a valve actuator including a rod moved up and down by expansion or contraction of a wax sealed therein, and a connection part that converts an up and down motion of the rod into a rotary motion to allow the bypass valve to open or close the bypass path along with movement of the rod.

Classes IPC  ?

• G05D 23/00 - Commande de la température
• G05D 15/00 - Commande de la force ou de la contrainte mécaniqueCommande de la pression mécanique
• G05D 16/00 - Commande de la pression d'un fluide
• F01P 3/00 - Refroidissement par liquide
• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F28F 27/02 - Commandes ou dispositifs de sécurité spécialement adaptés pour les appareils d'échange ou de transfert de chaleur pour commander la répartition des sources de potentiel calorifique entre des canaux différents
• F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

The present invention relates to a tail pipe structure for a muffler, in which the tail pipe structure occupies less space in the muffler and extends an exhaust gas discharge path. The tail pipe structure for a muffler according to the present invention comprises: a first pipe member arranged within a muffler casing; a second pipe member arranged within the first pipe member such that the second pipe member is spaced apart from the first pipe member in an inner diameter direction; and a third pipe member arranged within the second pipe member such that the third pipe member is spaced apart from the second pipe member in an inner diameter direction, the third pipe member having a discharge opening opened toward an outer surface of the muffler casing. The first pipe member, the second pipe member and the third pipe member are arranged into a concentric circle having the same axis. A first discharge space is formed between an inner surface of the first pipe member and an outer surface of the second pipe member. A second discharge space is formed between an inner surface of the second pipe member and an outer surface of the third pipe member. A third discharge space is formed within the third pipe member. Exhaust gas passes in the order of the first discharge space, the second discharge space and the third discharge space, and is discharged to the outside through the discharge opening of the third pipe member.

Classes IPC  ?

• F01N 13/20 - Silencieux ou dispositifs d'échappement caractérisés par les aspects de structure ayant des sorties évasées, p. ex. en forme de queue de poisson
• F01N 13/08 - Autres aménagements ou adaptations des tubulures d'échappement
• F01N 1/06 - Silencieux caractérisés par leur principe de fonctionnement utilisant les effets d'interférence

Abrégé

The present invention relates to a valve device for a muffler and, more particularly, to a valve device for a muffler consisting of a structure inserted into a pipe for a muffler in order to open and close the passage. The valve device for a muffler according to the present invention comprises: a housing installed on one end of a pipe for a muffler; and a valve member pivotably installed at the housing by means of a shaft and a spring member, wherein the valve member pivots between a closed position and an open position, the closed position being a position in which the valve member partially closes one end of the pipe for the muffler, and the open position being a position in which the valve member is inserted into the pipe for the muffler and opens the end of the pipe for the muffler.

Classes IPC  ?

• F01N 1/16 - Silencieux caractérisés par leur principe de fonctionnement par utilisation de parties mobiles
• F01N 1/18 - Silencieux caractérisés par leur principe de fonctionnement par utilisation de parties mobiles ayant un mouvement rotatif

Abrégé

A thermoelectric generator of a vehicle converts thermal energy of exhaust gas of an engine into electric energy by using a thermoelectric phenomenon, and may include: a high-temperature part heated by exchange heat and a plurality of pairs of heat transfer plates mounted on an outer peripheral surface of an exhaust pipe at a predetermined interval; pairs of thermoelectric modules acquired by bonding a P-type semiconductor and an N-type semiconductor, interposed between the pairs of heat transfer plates to generate electricity, and electrically connected to each other; and a low-temperature part interposed between the pairs of thermoelectric modules and cooling inner surfaces of the pairs of thermoelectric modules. The plurality of thermoelectric modules generates electricity by a difference in temperature between heated outer surfaces and cooled inner surfaces. Thermoelectric efficiency is improved and a small-sized thermoelectric generator of a vehicle may be implemented.

Classes IPC  ?

• H01L 35/30 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck caractérisés par les moyens d'échange de chaleur à la jonction
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• H01L 35/32 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails fonctionnant exclusivement par effet Peltier ou effet Seebeck caractérisés par la structure ou la configuration de la cellule ou du thermocouple constituant le dispositif

Abrégé

The present invention relates to a selective catalytic reduction (SCR) system which reduces nitrogen oxides in an exhaust gas, and more particularly, to an apparatus for reducing a mixing agent of the SCR system, which improves the spray uniformity of a reducing agent sprayed from the upstream side of a catalyst of the SCR system in order to uniformly mix the reducing agent in the exhaust gas. The apparatus for reducing a mixing agent of the SCR system according to the present invention comprises: an annular frame disposed on the front end of the SCR system; a spiral member installed on the inner circumference of the frame and having a spiral shape; and a plurality of blade members radially disposed on a surface of the spiral member. Each of the blade members includes a flat body installed on a side of the spiral member and first and second bent wings installed on an end of the body. The first and second bent wings are bent at a predetermined angle with respect to the body. The first and second bent wings are bent in opposite directions.

Classes IPC  ?

• F01N 3/28 - Structure des réacteurs catalytiques
• B01D 53/94 - Épuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques

Abrégé

The present invention provides there is provided an electrochemical biosensor electrode structure that includes: a working electrode and a reference electrode used as electrodes for sample measurement being arranged separately from each other in lengthwise direction of a sample insertion path, the working electrode and the reference electrode each having at least one projection and at least one recess alternately arranged on a portion thereof corresponding to the sample insertion path, the projection of the working electrode being correspondingly adjacent to the recess of the reference electrode, the recess of the working electrode being correspondingly adjacent to the projection of the reference electrode; and at least two sample recognition electrodes used as electrodes for sample recognition being separated from each other and arranged adjacent and parallel to the working electrode and the reference electrode. The present invention minimizes the effect of the double layer capacitance and independently applies the sample recognition signal to accurately detect the sample insert time and velocity.

Classes IPC  ?

• G01N 27/30 - Électrodes, p. ex. électrodes pour testsDemi-cellules