BUCKLE EGR Of an INTERNAL COMBUSTION ENGINE Of a MOTOR VEHICLE

Boucle EGR d'un moteur à combustion interne d'un véhicule automobile, dans laquelle : - le débit de l'air frais dans la voie d'arrivée de l'air (2) de la vanne EGR (1) étant maximum, - on ouvre progressivement la voie des gaz EGR (3) dans la vanne et, - avant que le débit des gaz EGR dans la vanne n'augmente plus, - on ferme progressivement la voie (2) d'arrivée de l'air frais pour continuer de faire croître le débit des gaz EGR, suivant une courbe monotone croissante.

MULTIFUNCTION VALVE

One embodiment includes product comprising a valve housing constructed and arranged to have a first fluid port, a second fluid port, and a third fluid port secured therein; a first valve disposed in one of the first fluid port, second fluid port or third fluid port and constructed and arranged to block or control flow of fluid there through, the first valve having a first face; a valve actuator shaft extending into one of the first fluid port, second fluid port, or third fluid port and operatively connected to the first valve; a second valve connected to the first valve by a stem portion different from the shaft, the second valve having a first face being constructed and arranged to be rotatable with the first valve and the valve shaft so that the shaft is rotatable to move the first valve between closed and open positions, the second valve is moved to a position that will block at least a portion of another of the first valve port, second valve port, or third valve port to restrict the ...

Finger follower for a cam-actuated poppet valve in an engine intake manifold assembly

Device for metering exhaust gases into the combustion chamber of an internal combustion engine

INTAKE DEVICE OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide an intake device of an internal combustion engine forming a tumble flow in a combustion chamber, in the internal combustion engine provided with an exhaust gas recirculation device. SOLUTION: An exhaust gas guide member 10 is provided in an air flow control valve 9 for changing opening cross-sectional area of an intake passage 31 and forms an exhaust gas passage 11 for guiding exhaust gas entering from an exhaust gas introducing part 53 into an intake pipe 30 to a reverse rotary shaft side of the air flow control valve 9. The exhaust gas discharged to an intake passage therefore joins with a flow having a high flow velocity formed by the air flow control valve 9 and flows in the combustion chamber to form the tumble flow in the combustion chamber. COPYRIGHT: (C)2010,JPO&INPIT ...

Control system for recirculation of i.c. engine exhaust gases comprises central computer calculating recorded gas recirculation value as function of engine operating point and control part for exhaust gas recirculation valve displacement

Le système de commande du fonctionnement d'un moteur à combustion interne, par commande de la quantité de gaz d'échappement recirculés, comprend un calculateur central (28) adapté pour calculer une valeur de consigne de quantité de gaz d'échappement recirculés en fonction du point de fonctionnement d'un moteur et un organe de commande du déplacement d'une vanne (26) de recirculation de gaz d'échappement déplaçable en fonction de la valeur de consigne de gaz recirculés pour positionner ladite vanne. La course de l'organe de commande du déplacement de la vanne comporte une première partie de course destinée à la commande du déplacement de ladite vanne (26) et une deuxième partie de course destinée au déplacement d'une vanne (30) de commande d'admission d'air frais ...

Control system for the gas debit in an exhaust gas recirculation system has the EGR valve and the air admission valve inside the same casing, controlled by a single control unit at a servomechanism

La présente invention concerne un dispositif original d'obturation et de régulation de débit de gaz d'échappement dans une ligne de recyclage de gaz d'échappement, notamment d'un moteur Diesel pour un véhicule automobile, qui est simple, économique, fiable et optimal. Ce dispositif (20) forme la jonction entre la ligne de recyclage (3) d'une fraction de gaz d'échappement et la ligne d'admission d'air (5). Il intègre la vanne EGR et le régulateur de débit d'air dans un seul module qui ne nécessite qu'un seul ensemble de pilotage (11) couplé directement à un seul mécanisme d'asservissement (12). Il comprend un corps comportant un conduit principal traversant, raccordé à la ligne d'admission d'air (5), et un conduit secondaire, raccordé à la ligne de recyclage de gaz d'échappement (3), débouchant dans ledit conduit principal. Il comprend également un organe d'obturation et de régulation du débit des gaz d'échappement recyclés disposé à l'intersection des deux conduits et agencé pour réguler ...

A METHOD AND DEVICE FOR AN EGR-SYSTEM AND A VALVE AS WELL AS A REGULATION METHOD AND DEVICE

The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) and directed through a recirculation conduit (10) to a controllable valve device (12) arranged between the engine and the air intake (2) thereof for allowing supply of air/recirculated exhaust gases in a desired relation to the combustion chamber of the engine (1). The invention also relates to a particular valve having two controllable inlets, said valve being useful in the method or device according to the invention, and a regulation method and device for regulating the air/fuel relation of a diesel engine.

PROCESS OF ORDERING Of a CIRCUIT EGR Of an ENGINE OF MOTOR VEHICLE, WINNOWS FOR the PLACEMENT OF the PROCESS AND ENGINE WITH the VALVE.

L'invention concerne un procédé de commande d'un circuit (2c) de recirculation des gaz d'échappement d'un moteur (M) à combustion interne de véhicule automobile, le moteur (M) étant relié à un circuit d'admission d'air (2a) et à un circuit d'échappement de gaz (2b) relié au circuit d'admission d'air (2a) par le circuit de recirculation (2c), une première vanne (15) régulant le débit d'air en amont du circuit de recirculation (2c) et une seconde vanne (16) régulant le débit de gaz d'échappement recirculés dans le circuit de recirculation (2c). Dans le procédé de l'invention, la recirculation des gaz d'échappement est commandée notamment par mesure d'une différence de pression aux bornes de la seconde vanne (16), le procédé comportant les étapes suivantes : a) on ferme la première et la seconde vanne (15, 16), la première vanne (15) étant agencée pour autoriser en position fermée le passage d'un courant de fuite d'air, b) on ouvre concomitamment la première et la seconde vanne (15, 16) de ...

Three-way control valve for internal combustion engine of motor vehicle, has control and actuation units for driving flaps with respect to one another, where actuating units are controlled by control unit and actuate flaps along time lag

Vanne trois voies (1) à deux volets (5,6) respectivement disposés dans deux des trois voies (2,3) de la vanne comprenant des moyens (7-12) de commande et d'actionnement des volets (5,6) pour les entraîner en pivotement de l'une à l'autre de deux positions d'ouverture et de fermeture des voies (2,3).II est prévu des moyens de commande uniques (7) pour les deux volets (5,6) et des moyens d'actionnement (9-12) agencés pour être commandés par les moyens de commande uniques (7,8) et pour actionner les deux volets (5,6) avec un déphasage temporel.

Exhaust gas re-circulation device for an internal combustion engine

An exhaust gas re-circulation device for an internal combustion engine comprises an intake air channel (2), an intake air control valve (18), an exhaust gas re-circulation valve (12) and an actuator (22), a first motion transmission mechanism between the actuator (22) and the exhaust gas re-circulation valve (12) and a second motion transmission mechanism between the actuator (22) and the intake air control valve (18). A first uncoupling means (26) is included in the first motion transmission mechanism and a first pull-back spring (34) biases the exhaust gas re-circulation valve (12) in a closed position. The device enables to control exhaust gas re-circulation rates by simultaneously driving the two valves in opposite senses and to obtain a smooth engine shut-off, by simultaneously closing the two valves. In a preferred embodiment, with a second uncoupling means (50) in the second motion transmission mechanism and a second pull-back spring (52) biasing the intake air control valve (18) ...

DEVICE OF FILTERING OF CIRCULATING GASES Of a COMBUSTION ENGINE

Dispositif de filtrage de gaz d'échappement prélevés sur le conduit d'échappement (4a) d'un moteur thermique en aval d'un organe de dépollution (6) sous le contrôle d'une vanne EGR (8), pour être envoyés dans une conduite de recirculation (7) vers l'admission du moteur, caractérisé en ce qu'il comporte un organe de filtrage autonettoyant (11) des gaz envoyés en recirculation, dont le fonctionnement est lié à celui de la vanne EGR (8).

MOTOR VEHICLE INTERNAL COMBUSTION ENGINE EGR LOOP

Fuel injection system for self-igniting internal combustion engines

What follows is a description of a fuel injection system for an internal combustion engine which employs exhaust gas recycling. The engine has a suction tube leading to the engine and an exhaust pipe leading from the engine, while the system includes a recycle line connecting both the exhaust pipe and the suction tube, and a control mechanism. The control mechanism can be located either in the suction tube, the exhaust line or the recycle line and controls the pressure therein in order to control the recycled exhaust gas flow rate. The system further has a regulating structure which regulates the quantity of the injected fuel in conjunction with the control mechanism.

Device for filtering the recirculation gases of a combustion engine

Dispositif de filtrage de gaz d'échappement prélevés sur le conduit d'échappement (4a) d'un moteur thermique en aval d'un organe de dépollution (6) sous le contrôle d'une vanne EGR (8), pour être envoyés dans une conduite de recirculation (7) vers l'admission du moteur, caractérisé en ce qu'il comporte un organe de filtrage autonettoyant (11) des gaz envoyés en recirculation, dont le fonctionnement est lié à celui de la vanne EGR (8).

ENGINE SYSTEM BASED ON A TURBOCHARGER AND A METHOD FOR IMPROVING FUEL EFFICIENCY WITH THE SAME, CAPABLE OF INCREASING A SYNERGY EFFECT EACH OTHER

PURPOSE: An engine system based on a turbocharger and a method for improving fuel efficiency with the same are provided to build a downsized engine system, and to prevent the layout of an engine room from becoming degraded. CONSTITUTION: An engine system based on a turbocharger comprises an intake air system(4), a exhaust air system(7), a super charger(20), an EGR, and a valve unit. The super charger forms other exhaust flow branching from the external air flow section of the intake air system. The EGR comprises an EGR line in order to deliver exhaust gas to the turbocharger. The EGR line is connected to the compressor of the turbocharger. The valve unit changes a mixture ratio of the exhaust gas with the air brought in through the turbocharger by changing the air flow and exhaust gas flow. COPYRIGHT KIPO 2013 [Reference numerals] (AA) Vehicle information ...

MULTIFUNCTION VALVE

One embodiment includes product comprising a valve housing constructed and arranged to have a first fluid port, a second fluid port, and a third fluid port secured therein; a first valve disposed in one of the first fluid port, second fluid port or third fluid port and constructed and arranged to block or control flow of fluid there through, the first valve having a first face; a valve actuator shaft extending into one of the first fluid port, second fluid port, or third fluid port and operatively connected to the first valve; a second valve connected to the first valve by a stem portion different from the shaft, the second valve having a first face being constructed and arranged to be rotatable with the first valve and the valve shaft so that the shaft is rotatable to move the first valve between closed and open positions, the second valve is moved to a position that will block at least a portion of another of the first valve port, second valve port, or third valve port to restrict the ...

DEVICE FOR ADMITTING INLET GASES AND/OR RECIRCULATED EXHAUST GASES INTO AN INTERNAL COMBUSTION ENGINE CYLINDER

The invention relates to a device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder, the device comprising a duct (1) designed to supply said cylinder with inlet gases and/or with recirculated exhaust gases, characterized in that said device further comprises, in the duct, a flow control means (5) that can be operated between a first position in which said duct supplies the cylinder with the inlet gases and a second position in which said duct supplies the cylinder with the recirculated exhaust gases. It also relates to the intake module and to the engine equipped therewith.

MIXING VALVE OF AN INTERNAL COMBUSTION ENGINE

The invention relates to a mixing valve (6) of an internal combustion engine (1) of a motor vehicle, comprising a flap (10) which is arranged in a suction channel (4) and a flap (11) which is arranged in an exhaust gas channel (5). One single flap (11) of the two flaps can be driven via a gear pair (16) with non-round or eccentric gears (17, 18). The drive of the other flap (10) has lost motion. In this manner, the closing movements of the flaps (10, 11) can be formed in a particularly free manner with only a single actuating motor.

Finger follower for a cam-actuated poppet valve in an engine intake manifold assembly

An integrated intake manifold assembly (10) including a first poppet valve assembly (92) disposed at the air inlet (96) to the manifold (12) to regulate air flow into the manifold; a second poppet valve assembly (108) disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft (82) with cams (86,88) for operating simultaneously the manifold vacuum regulating the poppet valves. The valve bodies (14,18) are integrally formed in the wall of the intake manifold. The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine (32), the manifold assembly may further include a swirl valve plate (44) disposed between the manifold and the engine head and having a plurality of ganged swirl valves (50) actuated by levers (28,56,58), connected to the camshaft internally of the manifold and swirl plate, for coordinated motion with the MVR and EGR valves. The valve poppets (92,108 ...

Amélioration de l'efficacité d'un catalyseur pour moteur Diesel suralimenté.

Dispositif permettant d'améliorer l'efficacité aux faibles charges, d'un catalyseur 12 monté dans le conduit d'échappement 11 d'un moteur Diesel suralimenté par un turbocompresseur 4. Il comporte une vanne 14 montée dans une conduite de dérivation 13 permettant le recyclage des gaz d'échappements et un volet 15 placé dans la tubulure d'admission 9. La vanne 14 et le volet 15 sont associés à un moyen de commande comportant un capteur 17 de la pression à la sortie du compresseur 6 et un dispositif de mesure 19 de la vitesse du moteur, capable de commander, en même temps, l'ouverture de la vanne de décharge et la fermeture du volet 15 lorsque la pression à la sortie du compresseur est inférieure à une valeur prédéterminée et la vitesse du moteur supérieure à une valeur également prédéterminée.

INTERNAL COMBUSTION ENGINE COMMON ACTUATOR FOR EGR VALVE AND AIR VALVE

L'invention concerne un moteur thermique comprenant : -une ligne (3) d'admission d'air comportant des moyens (6) de dosage du débit d'air admis, - Une ligne (4) d'échappement des gaz brûlés produits par le moteur thermique comprenant un organe (11) de dépollution, - une ligne (12) de recirculation des gaz brûlés dite basse pression reliant un point (A) de la ligne (4) d'échappement en aval de l'organe (11) de dépollution à un point (B) de la ligne (3) d'admission en aval des moyens (6) de dosage du débit d'air admis et comportant des moyens (14) de dosage du débit de gaz brûlés recirculés, caractérisé en ce qu'il comporte un actionneur (15) commun qui pilote simultanément les moyens (14) de dosage du débit de gaz recirculés et les moyens (6) de dosage du débit d'air admis.

WINNOW THREE WAYS HAS TWO SHUTTERS

PLUGGING AND REGULATION DEVICE OF the GAS OUTPUT Of EXHAUST IN UNELIGNE OF EXHAUST FUMES RECYCLING CONNECTEE HAS a LINE Of ADMISSION Of AIRD' an INTERNAL COMBUSTION ENGINE

PROCESS OF ORDERING Of a CIRCUIT EGR Of an ENGINE OF MOTOR VEHICLE.

L'invention concerne un procédé de commande d'un circuit de recirculation des gaz d'échappement d'un moteur à combustion interne de véhicule automobile, le moteur étant relié à un circuit d'admission d'air et à un circuit d'échappement de gaz relié au circuit d'admission d'air par le circuit de recirculation, une première vanne régulant le débit d'air en amont du circuit de recirculation et une seconde vanne régulant le débit de gaz d'échappement recirculés dans le circuit de recirculation. Le procédé comporte les étapes suivantes : a) on ferme la première vanne et on ouvre progressivement la seconde vanne ; b) si la seconde vanne est ouverte d'un angle supérieur à une valeur comprise entre 25° et 35°, on ouvre progressivement la première vanne concomitamment à l'ouverture de la seconde vanne. Grâce à l'invention, le taux d'EGR peut aisément être piloté.

Three-way control valve for comburent intake system of exhaust gas recirculation internal combustion engine in vehicle, has closing unit that is driven with temporal phase shift relative to driving of another closing unit by driving part

Vanne trois voies destinée à être utilisée dans une conduite d'admission d'un moteur à combustion interne avec recirculation des gaz d'échappement comprenant, au moins deux moyens de fermeture disposés respectivement dans deux voies (1, 2) de la vanne (10, 20), un premier moyen de fermeture étant agencé pour entraîner le deuxième moyen de fermeture dans l'une des positions d'obturation et d'ouverture, le premier moyen de fermeture étant entraîné dans l'une des positions d'obturation et d'ouverture par un organe d'entraînement. Le deuxième moyen de fermeture est entraîné avec un déphasage temporel par rapport à l'entraînement du premier moyen de fermeture.

MIXING VALVE OF AN INTERNAL COMBUSTION ENGINE

A mixing valve (6) of an internal combustion engine (1) of a motor vehicle with a flap (10) which is arranged in an intake duct (4) and a flap (11) which is arranged in an exhaust-gas duct (5) has a belt drive (15) for coupling the flaps (10, 11). In order to transmit the movements, belt pulleys (18, 19) are arranged on shafts (16, 17) which hold the flaps (10, 11). One of the belt pulleys (18) is driven via a single electric-motor actuating drive (9).

Diesel engine exhaust gas recirculation and intake air flow control system

In a diesel engine which includes an air intake system, an exhaust system, and an exhaust gas recirculation passage which recirculates part of the exhaust gases produced by the engine from the exhaust system to the air intake system, a control system for the recirculation of exhaust gases and the flow of intake air, having an intake air flow control valve mounted in the air intake passage, and a recirculated exhaust gas flow control valve, mounted in the exhaust gas recirculation passage, these two control valves being so coupled together that, as one of them opens progressively, the other closes progressively, and vice versa, so that exhaust gas recirculation ratio alters in substantially direct proportion to the amount of opening of the exhaust gas recirculation flow control valve.

A METHOD AND DEVICE FOR AN EGR-SYSTEM AND A VALVE AS WELL AS A REGULATION METHOD AND DEVICE

The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) and directed through a recirculation conduit (10) to a controllable valve device (12) arranged between the engine and the air intake (2) thereof for allowing supply of air/recirculated exhaust gases in a desired relation to the combustion chamber of the engine (1). The invention also relates to a particular valve having two controllable inlets, said valve being useful in the method or device according to the invention, and a regulation method and device for regulating the air/fuel relation of a diesel engine.

Moteur à combustion interne.

LA PRESENTE INVENTION CONCERNE UN MOTEUR A COMBUSTION INTERNE. SELON L'INVENTION, IL COMPORTE DES CYLINDRES REPARTIS EN PREMIER ET SECOND GROUPES N1 A 3 ET N4 A 6; UN PASSAGE D'ADMISSION 24 DIVISE EN PREMIERE ET SECONDE RAMIFICATIONS 26 ET 28 VERS LES PREMIER ET SECOND GROUPES DE CYLINDRES, LE SECOND PASSAGE ETANT POURVU D'UN CLAPET D'ARRET 34 NORMALEMENT OUVERT; UN PASSAGE D'ECHAPPEMENT 38 DIVISE PAR UNE SEPARATION 44 EN PREMIERE ET SECONDE RAMIFICATIONS 40-42 PROVENANT DES PREMIER ET SECOND GROUPES DE CYLINDRES; UN PASSAGE 50 DE RECIRCULATION DES GAZ D'ECHAPPEMENT CONTENANT UNE SOUPAPE 52 NORMALEMENT FERMEE; UN CAPTEUR 56 DE GAZ D'ECHAPPEMENT PREVU DANS UN TROU 46 DE LA SEPARATION 44; ET UN MOYEN DE COMMANDE 58, 62 SENSIBLE AUX CHARGES DU MOTEUR POUR INTERROMPRE L'ALIMENTATION EN CARBURANT VERS LE SECOND GROUPE, FERMER LE CLAPET D'ARRET ET OUVRIR LA VANNE DE RECIRCULATION. L'INVENTION S'APPLIQUE NOTAMMENT A L'INDUSTRIE AUTOMOBILE.

VALVE OF RECYCLING OF EXHAUST FUMES

BUCKLE EGR Of an INTERNAL COMBUSTION ENGINE Of a MOTOR VEHICLE

METHOD AND DEVICE FOR DETERMINING A TOTAL CYLINDER CHARGE AND/OR THE CURRENT RESIDUAL GAS RATE IN AN INTERNAL COMBUSTION ENGINE HAVING EXHAUST GAS RECIRCULATION

The invention relates to a method for determining a total cylinder charge (rfrges) in cylinders of an internal combustion engine (2) having exhaust gas recirculation, wherein exhaust gas is recirculated at an introduction point (10) into an intake pipe (4) in order to feed a gas mixture into the cylinders (3), wherein the total cylinder charge (rfrges) indicates an instantaneous, total gas amount in the cylinders (3), wherein the total cylinder charge (rfrges) is ascertained according to a sum of the gas mass flows fed to the intake pipe (4) and according to a first dynamic correction factor (fvisrm) which describes the dynamic behavior of the intake pipe (4) regarding the intake pipe pressure which develops there. Furthermore, an instantaneous residual gas rate (rragrzw) which indicates the instantaneous proportion of exhaust gas in the total gas present in the intake pipe (4) can be determined according to an exhaust gas partial pressure (psrext) and according to the instantaneous intake ...

A regulation method and device for exhaust gas recirculation

The invention relates to a method and a device for regulating a diesel engine, a part of the exhaust gases from the diesel engine being recirculated to the inlet thereof and a supply of fresh air and recirculated exhaust gases to the diesel engine being regulated by means of a valve device (12) controlled by a control device (13) to regulate the relation between the supplied fresh air and recirculated exhaust gases. The control device (13) is supplied with information from a Lambda probe (14), an engine speed sensor (15) and an engine load sensor (16) so as to regulate the air/fuel relation of the diesel engine by means of said information and the valve device.

INTEGRATED CHARGE AIR AND EGR VALVE

THROTTLE VALVE ASSEMBLY

SEQUENTIAL CONTROL VALVE

Device for controlling temperature of intake air of e.g. diesel spark-ignition engine of motor vehicle, has heat exchanger provided with bypass circuit, where closure devices of bypass circuits are controlled by common actuator

Dispositif de gestion de la température d'air d'admission d'un moteur à explosion (3), ledit dispositif comportant : - un premier échangeur de chaleur (5) placé dans le circuit d'admission d'air (7), - un premier circuit de contournement (9) dudit premier échangeur de chaleur (5), le passage de l'air d'admission dans ledit premier circuit de contournement (9) étant commandé par l'ouverture ou la fermeture d'un dispositif d'obturation (112a) d'une vanne de contournement, - un circuit de recirculation des gaz d'échappement (13) comportant un second échangeur de chaleur (15), - un second circuit de contournement (17) dudit second échangeur de chaleur (15), le passage des gaz d'échappement dans ledit second circuit de contournement (17) étant commandé par l'ouverture ou la fermeture d'un dispositif d'obturation (112b) d'une vanne de contournement, les dispositifs d'obturation (112a, 112b) des premier (9) et second (17) circuits de contournement étant pilotées par un même actionneur (110).

INTRODUCER, IN A CYLINDER OF AN INTERNAL COMBUSTION ENGINE, INTAKE GAS AND/OR THE RECIRCULATED EXHAUST GAS.

L'invention concerne un dispositif d'introduction, dans un cylindre de moteur à combustion interne, de gaz d'admission et/ou de gaz d'échappement recirculés, comportant un conduit (1) agencé pour alimenter en gaz d'admission et/ou en gaz d'échappement recirculés ledit cylindre, caractérisé en ce que ledit dispositif comprend en outre, dans le conduit, un moyen (5) de contrôle de flux, pilotable entre une première position dans laquelle ledit conduit alimente le cylindre avec les gaz d'admission et une deuxième position dans laquelle ledit conduit alimente le cylindre avec les gaz d'échappement recirculés. Elle concerne également le module d'admission et le moteur qui en est équipé.

Exhaust gas recirculation control system for a diesel engine and control method therefor

In an exhaust gas recirculation control system in which a fuel injection quantity is determined on the basis of engine speed and engine load, a throttle-closed range is determined on the basis of engine speed and fuel injection quantity. An exhaust gas recirculation control valve has an electromagnetically operable valve actuator, the duty cycle of which is controlled by a control signal. The duty cycle of the valve actuator is variable in accordance with engine operational condition either in or out of the throttle-closed range. An electromagnetically operated actuator is associated with the throttle valve for controlling the operation of the latter. The actuator is operable between a throttle-open position and a throttle-closed position to operate the throttle valve depending on whether the engine operation conditions are within or out of the throttle-closed range.

EXHAUST GAS RECIRCULATION DEVICE

PURPOSE: To recirculate the exhaust gases in an quantity corresponding to a throttle opening, under the running condition of a normal opening rage of a throttle valve, and to render the recirculation inoperative after the throttle opening reaches a preset level in the high opening range. CONSTITUTION: An EGR control valve 4 is connected through a power transmission mechanism to a throttle lever 9. In case the opening of a throttle valve 7 slightly exceeds a preset level, the pin 14 of a connector rod 12 rides over the edge portion of a notch lla so that it is fitted in an arcuate groove 11b. As a result, the joint between an idle lever 11 and the connector rod 12 is released so that this rod 12 is set free. As a result, the control valve 4 closes its passage with the aid of a spring 15 to block the recirculation of the exhaust gases. After that, even if the throttle lever 9 is turned, only the idle lever 11 is driven so that it is turned idlly together with the throttle lever 9 COPYRIGHT ...

VALVE OF RECYCLING OF EXHAUST FUMES

... a)L'invention concerne une soupape de recyclage des gaz d'échappement.b) Soupape caractérisée en ce qu'à la chemise de soupape (34) sont associés des moyens, qui permettent d'avoir un refroidissement de la chemise de soupape (34), en particulier dans une zone de contact comprise entre la chemise de soupape (34) et le canal d'aspiration ,et en ce que la soupape (34) est entourée.

SEQUENTIAL CONTROL VALVE

A system for controlling the mixture of an airflow and an exhaust gas flow utilizing two valves, the first valve at least partially positioned in an air intake conduit and regulating the flow of fluid through the air conduit, and the second valve positioned in an exhaust gas recirculation conduit for regulating the flow of exhaust gas. The control scheme presenting a sequential or stepwise control sequence, where the first valve is actuated over a first pressure range and the second valve is actuated over a second pressure range such that valves operate in a sequential manner. © KIPO & WIPO 2008 ...

System for combined EGR and idle speed control

A system including a throttle body communicating intake air to the intake manifold of an engine, the throttle body including a movable throttle plate. A vacuum responsive idle speed bypass valve is used to bypass intake air around the throttle plate and into the intake manifold, a vacuum responsive EGR valve is used for regulating the amount of exhaust gas permitted to be recirculated into the intake manifold, a single electric vacuum regulating (EVR) communicated to a vacuum inport port, the idle speed bypass valve and EGR valve to be employed to vary the degree of manifold vacuum communicated thereto.

APPARATUS FOR CONTROLLING ENGINE SPEED AND RECIRCULATION OF EXHAUST GAS IN INTERNAL-COMBUSTION ENGINE

PURPOSE: To reduce the number of mechanical elements by using mechanical elements commonly in controlling the idling speed and recirculation of exhaust gas (EGR) of an engine and to minimize control and EGR deviation due to fluctuation of the negative intake pressure by utilizing vacuum actuators. CONSTITUTION: An actuator rod of a first vacuum actuator 4 is connected to a throttle valve 2 of a carburetor 1 in the manner that the valve opening operation of the throttle valve 2 by an accelerator pedal is not hindered, and a negative-pressure port of the first actuator 4 is connected to a normally opened output port of an electromagnetic changeover valve means 50. Further, an actuator rod of a second vacuum actuator 46 is connected to a flow control valve 47 disposed in an exhaust-gas recirculating passage 45, and a negative-pressure port of the second actuator 46 is connected to a normally closed output port of the electromagnetic changeover valve means 50. An input port of the changeover ...

Exhaust gas recirculator

An exhaust gas recirculator for an internal combustion engine having an exhaust pipe, an intake manifold and a carburetor throttle valve. The exhaust gas recirculator comprises an EGR passage which makes the exhaust pipe communicate with the intake manifold, an EGR controlling valve and an EGR valve respectively arranged in the upper and lower portions of the EGR passage. The EGR valve operates in association with the carburetor throttle valve for metering the flow of EGR gas. The EGR controlling valve is separated by a diaphragm into an EGR gas chamber communicating with the EGR passage between the EGR controlling valve and the EGR valve and a negative pressure chamber communicating with the intake manifold. The negative pressure chamber contains a compression spring, and the diaphragm is connected with a valve member through a rod upon which is disposed a stopper to serve as a different seal in place of the valve member to close off the exhaust gas passage, which valve member and stopper ...

Method and device for an EGR-system and a valve as well as a regulation method and device

The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) and directed through a recirculation conduit (10) to a controllable valve device (12) arranged between the engine and the air intake (2) thereof for allowing supply of air/recirculated exhaust gases in a desired relation to the combustion chamber of the engine (1). The invention also relates to a particular valve having two controllable inlets, said valve being useful in the method or device according to the invention, and a regulation method and device for regulating the air/fuel relation of a diesel engine.

TWO-SHUTTER THREE-WAY VALVE

Exhaust gas re-circulation device for an internal combustion engine

CONTROL VALVE

PURPOSE: To control the introduction of circulated gas via a control valve by interlocking the valve to the butterfly valve in the suction gas system of diesel engine to thereby respond the control valve provided in the exhaust gas circulating and introducing section in response to the opening of the butterfly valve. CONSTITUTION: A sub passage 14 is perpendicularly branched in the vicinity of the secondary side of a butterfly valve 12 in a main passage 11. The rod 21 is protruded in predetermined amount in response to the opening of the valve 12. A second spring 22 pushes a valve body 17 toward a valve seat 16 side against first spring 19 in response to the protruded amount of the rod 21 to thereby remove the valve body 17 from the seat 15 to thus open the sub passage 14. Accordingly, the exhaust gas is circulated through the valve seat 16, passage 18, valve seat 15 and main passage 11 into a suction manifold 1 and to a diesel engine. COPYRIGHT: (C)1979,JPO&Japio ...

MIXER VALVE OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE

A mixer valve (6) of an internal combustion engine (1) of a motor vehicle has a drive device (8) with a respective drive pinion (18, 19) and a control disc (16, 17) for driving two flaps (10, 11). A single servomotor (9) for driving the drive pinion (18, 19) is arranged in a corner region of an exhaust gas duct (5) and of an intake duct (4). The mixer valve (6) has a particularly compact design.

TWO-SHUTTER THREE-WAY VALVE

Integrated intake manifold assembly for an internal combustion engine

An integrated intake manifold assembly (10) including a poppet valve (92) disposed at the air inlet to the manifold to regulate air flow into the manifold; a poppet valve (108) disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft (82) with cams (86, 88) for operating simultaneously the manifold vacuum regulating (MVR) valve and the exhaust gas recirculation (EGR) valve. The valve bodies are integrally formed in the wall of the intake manifold. The camshaft is driven by a DC motor (70) and gear train (72, 74, 80). The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine, the assembly may further include a swirl valve plate (44) disposed between the manifold and the engine head and having a plurality of ganged swirl valves (50) actuated by levers (138) connected to the camshaft for coordinated motion with the MVR and EGR valves. Preferably, the swirl ...

Fuel injection fuel flow control system

CONTROLLING APPARATUS FOR RECIRCULATION AMOUNT OF EXHAUST GAS

PURPOSE: To reduce the amount of supercharging in low speed revolution of an engine by introducing the intake negative pressure for controlling the EGR control valve for an internal combustion engine from right above a throttle valve in closing. CONSTITUTION: The intake and exhaust pipes 8 and 2 of an engine 1 are allowed to communicate through the EGR passages 3 and 5 having an EGR control valve 4 and interposed EGR valve 6. The EGR valve 6 interlinks with a throttle valve 7, and the control valve 4 is opened and closed by the intake negative pressure which is transmitted to a diaphragm chamber 17 through a port 22 right above the throttle valve 7 in closing. In a negative pressure passage 24, a vacuum modulator 10 and a throttle 20 are installed. In the modulator 10, the pressure before and behind the EGR valve 6 are introduced into the both chambers 11 and 12 which are divided, by a diaphragm 13 and according to the difference of the pressure values, the negative pressure amount in the ...

SEQUENTIAL CONTROL VALVE

A system for controlling the mixture of an airflow and an exhaust gas flow utilizing two valves, the first valve at least partially positioned in an air intake conduit and regulating the flow of fluid through the air conduit, and the second valve positioned in an exhaust gas recirculation conduit for regulating the flow of exhaust gas. The control scheme presenting a sequential or stepwise control sequence, where the first valve is actuated over a first pressure range and the second valve is actuated over a second pressure range such that valves operate in a sequential manner.

MODULAR EXHAUST GAS RECIRCULATION ASSEMBLY

A modular exhaust gas recirculation assembly includes a flow control body, a closing member movably mounted in the manifold conduit between a first position and a second position, and an actuator assembly coupled to the closing member and driving the closing member between the first position and the second position. The flow control body includes a manifold conduit and an inlet conduit in fluid communication with the manifold conduit. The manifold conduit includes manifold conduit a recirculation opening, a first open end having a first cross-sectional shape, and a second open end having a second cross-sectional shape. The closing member includes a boundary defining an operative surface. The boundary has a configuration that is different from the first cross-sectional shape and the second cross-sectional shape. When in the first position, the closing member closes the recirculation opening and blocks fluid communication between the inlet conduit and the manifold conduit. When in the second ...

Throttle valve assembly

Throttle valve assembly (10) comprising: - a valve housing (40) having a main channel (32) and an auxiliary channel (36), - a main throttle valve (34) pivotally mounted in the main channel (32), - an auxiliary throttle valve (38) pivotally mounted in the auxiliary channel (36), - a common rotating actuator (54) controlling the opening angle of both the main throttle valve (34) and the auxiliary throttle valve (38) through an actuating mechanism (52), characterized by said actuating mechanism (52) comprising a crank mechanism (70) connected between the auxiliary pivoting shaft (50) and a gear train (58) driven by the rotating actuator (54).

Valve assembly having an exhaust gas recirculation EGR throttle plate and an air throttle plate

An internal combustion engine includes a valve body (41) having an intake air port (36) and an EGR port (32). The engine also has an intake passage (24) for transporting an intake air/EGR mixture from the valve body to an engine combustion chamber (20) and an exhaust passage (28) to exhaust gases from the combustion chamber. An EGR passage (30) extends between the exhaust passage and the intake passage for transporting recirculated exhaust gases to the EGR port of the valve body. An intake air passage (34) transports intake air to the intake air port of the valve body and to the intake passage. A valve assembly includes a rotatable shaft (41) supported in the valve body extending across the intake air port and the EGR port. An EGR throttle plate (44) is supported on the shaft and is operable to close the EGR port, and an air throttle plate (46) is supported on the shaft and is operable to partially restrict the intake air port. The shaft rotates the EGR throttle plate and the air throttle ...

EXHAUST GAS RECIRCULATION DEVICE

PROBLEM TO BE SOLVED: To prevent the degradation of a EGR gas recirculation amount (an EGR amount) and engine output by reducing flow path resistance in an EGR gas passage of a housing. SOLUTION: In an EGR valve module incorporated in this exhaust gas recirculation device (an EGR system), a first inlet pipe 21 in the housing 1 connected to the downstream end of an EGR pipe is connected in acute-angle inclination (V-shaped connection) to part of the intake duct of an engine (a second inlet pipe 22, a base 23 and an outlet pipe 24). Namely, the combination angle between the EGR gas passage 11 formed in the first inlet pipe 21 and an air introduction passage 12 formed in the second inlet pipe 22 is set to be smaller than 90°(an acute angle). This reduces flow path resistance resulting from the curve of the EGR gas passage 11 at its downstream position to prevent the degradation of an EGR amount and engine output. COPYRIGHT: (C)2010,JPO&INPIT ...

Exhaust-gas recirculation valve

INTEGRATED CHARGE AIR AND EGR VALVE

An engine assembly comprising an engine, a plurality of coolers, a plurality of bypasses, and at least one actuator. The engine has an exhaust manifold and an intake manifold. The gaseous fluid exiting the exhaust manifold is recirculated to the intake manifold. The exhaust gas passes through either an air cooler or a bypass. At least one actuator is operably connected to the plurality of bypasses. The bypasses have a valve which is actuated to control the flow of the gaseous fluid through the bypass as both the bypass and the cooler. Therefore, when a single actuator is used to control the valves in both bypasses, the valves in the bypasses have the same relationship with the inlets so that a single actuator movement will control both valves in the same manner.

VALVE

The invention relates to a valve having a housing in which three ducts (2-4) that are connected to each another are arranged, one flap (6, 11), which is mounted rotatably on a shaft (5, 10) being arranged in each of two ducts (2, 3), an electric motor which drives a shaft (6) by means of a gearing system, and a transmission mechanism (7, 8, 9), which drives the second flap (11) depending on the movement of the first flap (6). On the shaft (5) of the first flap (6), a cam disc (7) is arranged, on the circumference of which a lever (9) rests, which is connected in a rotationally fixed manner to the shaft (10) of the second flap (11).

Integrated intake manifold assembly for an internal combustion engine

An integrated intake manifold assembly including a poppet valve disposed at the air inlet to the manifold to regulate air flow into the manifold; a poppet valve disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft with cams for operating simultaneously the manifold vacuum regulating (MVR) valve and the exhaust gas recirculation (EGR) valve. The valve bodies are integrally formed in the wall of the intake manifold. The camshaft is driven by a DC motor and gear train. The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine, the assembly may further include a swirl valve plate disposed between the manifold and the engine head and having a plurality of ganged swirl valves actuated by levers connected to the camshaft for coordinated motion with the MVR and EGR valves. Preferably, the swirl valve plate is also ported as a distribution rail to receive exhaust ...

Sequential control valve

A system for controlling the mixture of an air flow and an exhaust gas flow utilizing two valves, the first valve at least partially positioned in an air intake conduit and regulating the flow of fluid through the air conduit, and the second valve positioned in an exhaust gas recirculation conduit for regulating the flow of exhaust gas. The control scheme presenting a sequential or stepwise control sequence, where the first valve is actuated over a first pressure range and the second valve is actuated over a second pressure range such that valves operate in a sequential manner.

EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

The invention relates to an internal combustion engine comprising at least one combustion chamber, a cylinder head, at least one cylinder that is arranged therein, at least one intake duct (12) and one discharge duct (23) per cylinder, and an external exhaust gas recirculation duct (8) which branches off the discharge duct and extends into at least one of the intake ducts. Said exhaust gas recirculation duct can be sealed in a controlled manner, wherefore a pivotable flap (5) is disposed between the exhaust gas recirculation duct (8) and the associated intake duct (12) in the area where the exhaust gas recirculation duct (8) meets the intake duct (12). Said pivotable flap (5) opens or closes a connection between the intake duct (12) and the exhaust gas recirculation duct (8) in accordance with the pivoting displacement.

An EGR valve for a vechicle

THROTTLE VALVE ASSEMBLY

Throttle valve assembly (10) comprising: - a valve housing (40) having a main channel (32) and an auxiliary channel (36), - a main throttle valve (34) pivotally mounted in the main channel (32), - an auxiliary throttle valve (38) pivotally mounted in the auxiliary channel (36), - a common rotating actuator (54) controlling the opening angle of both the main throttle valve (34) and the auxiliary throttle valve (38) through an actuating mechanism (52), characterized by said actuating mechanism (52) comprising a crank mechanism (70) connected between the auxiliary pivoting shaft (50) and a gear train (58) driven by the rotating actuator (54).

Poppet valve having an aligning yoke

An integrated intake manifold assembly (10) including a poppet valve (16) disposed at the air inlet (96) to the manifold (12) to regulate air flow into the manifold; a poppet valve (20) disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft (82) with cams (86,88) for operating simultaneously the manifold vacuum regulating (MVR) valve (16) and the exhaust gas recirculation (EGR) valve (20). The valve bodies (14,18) are integrally formed in the wall of the intake manifold. The camshaft is driven by a DC motor (70) and gear train (72,74,76,78,80) . The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine (32), the assembly may further include a swirl valve plate (44) disposed between the manifold and the engine head and having a plurality of ganged swirl valves (50) actuated by levers (28,56,58) connected to the camshaft for coordinated motion with the ...

INTAKE AND EGR CONTROLLER FOR DIESEL ENGINE

PURPOSE: To always keep the degree of opening of an exhaust gas recirculation valve unit proportional to the ratio of exhaust gas recirculation and optimize the exhaust gas recirculation, by composing the intake and exhaust gas recirculation controller of a diesel engine of an intake throttle valve and an exhaust throttle valve which are driven in opposite directions. CONSTITUTION: A housing 40 is provided between an intake duct and an intake manifold which are not shown in the drawing. An intake passage 41 is defined by the housing 40. An intake throttle valve 59 is installed at the top of the housing 40. A port 47 for introducing exhaust gas under pressure is opened over the valve 59. An exhaust gas recirculation pipe 8 communicates with the top of the introduction port 47. A exhaust throttle valve 48, which is tapered, is provided so that the valve can come into and out of contact with a valve seat 46. Both the throttle valves 48, 59 are coupled to each other by a hook member 69. The ...

INTERNAL COMBUSTION ENGINE

The invention relates to an internal combustion engine (25) having at least one exhaust-gas recirculation line (16), by means of which exhaust gas of the internal combustion engine (25) can be recirculated from an exhaust-gas side (52) to an air side (54) of the internal combustion engine (25), and having an exhaust-gas turbocharger (56) which has a turbine (58) and comprises a turbine housing (10), in which a turbine wheel (18) of the turbine (58) is accommodated, and which turbine housing (10) has at least one spiral channel (12, 14), through which exhaust gas of the internal combustion engine (25) can flow and via which the exhaust gas can be fed to the turbine wheel (18), wherein an adjusting device (20) of the turbine (58) is provided, by means of which adjusting device (20) at least one nozzle cross section (AR) of the spiral channel (12, 14) can be set, wherein the nozzle cross section (AR) of the spiral channel (12, 14) and a throughflow cross section (AAGR) of the recirculation ...

Internal combustion engine with emission control systems

Disclosed is an automotive multi-cylinder internal combustion engine in which exhaust gases from one or more of the exhaust ports of the engine cylinders are partially recirculated into the mixture induction system of the engine and secondary air is injected into exhaust gases from the remaining exhaust ports under normal operating conditions of the engine. The recirculation of the exhaust gases is interrupted and furthermore secondary air is injected into the exhaust gases from all the engine cylinders under predetermined non-normal operating conditions such as idling and decelerating conditions of the engine.

Modular exhaust gas recirculation assembly

A modular exhaust gas recirculation assembly includes a flow control body, a closing member movably mounted in the manifold conduit between a first position and a second position, and an actuator assembly coupled to the closing member and driving the closing member between the first position and the second position. The flow control body includes a manifold conduit having a recirculation opening, and an inlet conduit in fluid communication with the manifold conduit. The inlet conduit includes a wall common with the manifold conduit. When in the first position, the closing member closes the recirculation opening and blocks fluid communication between the inlet conduit and the manifold conduit. When in the second position, the closing member opens the recirculation opening and permits fluid communication between the inlet conduit and the manifold conduit and creates a pressure differential across the recirculation opening so that fluid is drawn from the inlet conduit into the manifold conduit ...

Control device for a combustion engine

Regelvorrichtung für Verbrennungskraftmaschinen mit kombinierten Abgasrückführ- und Drosselklappen (36, 40), die über einen gemeinsamen Aktor betätigt werden, sind bekannt. Um die Regelbarkeit insbesondere des Abgasstroms zu verbessern wird vorgeschlagen, dass die den Abgasrückführkanal (24) beherrschende zweite Klappe (40) im Abgasrückführkanalgehäuse (10) gelagert ist und einen Klappenkörper (38) und eine als Drehachse dienende Welle (42) aufweist, wobei die den Ansaugkanal (22) beherrschende erste Klappe (36) auf dem Klappenkörper (38) der zweiten Klappe (40) befestigt ist. So kann eine genaue Regelung wie mit einer separat gelagerten und betätigten Abgasrückführklappe erfolgen.

Manifold inlet valve having linear response

An integrated intake manifold assembly (10) including a first poppet valve assembly (16) disposed at the air inlet (96) to the manifold (12) to regulate air flow into the manifold; a second poppet valve assembly (20) disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft (82) with cams (86,88) for operating simultaneously the manifold vacuum regulating (MVR) valve (16) and the exhaust gas recirculation (EGR) valve (20). The valve bodies (14,18) are integrally formed in the wall of the intake manifold, The camshaft is driven by a DC motor (70) and gear train (72,74,76,78,80). The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine (32), the manifold assembly may further include a swirl valve plate (44) disposed between the manifold and the engine head and having a plurality of ganged swirl valves (50) actuated by levers (28,56,58) connected to the camshaft ...

LOW PRESSURE EGR APPARATUS

PROBLEM TO BE SOLVED: To provide a low pressure EGR apparatus driving both a low pressure EGR control valve 5 and an intake valve 6 by one electric actuator 7 and satisfying both characteristics required for the low pressure EGR control valve 5 and characteristics required for the intake valve 6. SOLUTION: The low pressure EGR control valve 5 and a link device 9 having a converting mechanism 8 having rotational characteristics are driven by the single electric actuator 7. The converting mechanism 8 maintains the intake valve 6 in the maximum opening from the fully closed state of the low pressure EGR control valve 5 to the predetermined switched opening thereof, and achieves "a low concentration control state" with the opening of only the low pressure EGR control valve 5 changed, thereby returning the small amount of EGR gas to an engine. In a range where the opening of the low pressure EGR control valve 5 is larger than a predetermined switched opening, the converting mechanism 8 achieves ...

MULTIFUNCTION VALVE

SEQUENTIAL CONTROL VALVE

A system for controlling the mixture of an airflow and an exhaust gas flow utilizing two valves, the first valve at least partially positioned in an air intake conduit and regulating the flow of fluid through the air conduit, and the second valve positioned in an exhaust gas recirculation conduit for regulating the flow of exhaust gas. The control scheme presenting a sequential or stepwise control sequence, where the first valve is actuated over a first pressure range and the second valve is actuated over a second pressure range such that valves operate in a sequential manner.

Split type internal combustion engine

An internal combustion engine is disclosed which includes first and second cylinder units, an intake manifold divided into first and second intake passages leading to the first and second cylinder units, respectively, an exhaust manifold divided into first and second exhaust passages leading from the first and second cylinder units, respectively, and control means for providing a control signal to disable the second cylinder unit when the engine load is below a predetermined value. The second intake passage has therein a first normally open valve adapted to close in response to the control signal. The second exhaust passage has therein a second normally open valve adapted to close in response to the control signal. Pressure control means is provided which is responsive to the control signal for supplying a predetermined pressure not less than atmospheric pressure to the second intake passage, thereby maintaining the second intake passage at the predetermined pressure.

METHOD FOR CONTROLLING AN EGR CIRCUIT IN A MOTOR VEHICLE ENGINE

Manifold inlet valve having linear response

An integrated intake manifold assembly (10) including a first poppet valve assembly (16) disposed at the air inlet (96) to the manifold (12) to regulate air flow into the manifold; a second poppet valve assembly (20) disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft (82) with cams (86,88) for operating simultaneously the manifold vacuum regulating (MVR) valve (16) and the exhaust gas recirculation (EGR) valve (20). The valve bodies (14,18) are integrally formed in the wall of the intake manifold, The camshaft is driven by a DC motor (70) and gear train (72,74,76,78,80). The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine (32), the manifold assembly may further include a swirl valve plate (44) disposed between the manifold and the engine head and having a plurality of ganged swirl valves (50) actuated by levers (28,56,58) connected to the camshaft ...

EGR INTEGRATED THROTTLE DEVICE

PROBLEM TO BE SOLVED: To provide an EGR integrated throttle device easy in installing a throttle valve element, even if a shaft is further obliquely arranged to a throttle flow passage, by preventing an increase in intake resistance, by preventing reduction in an EGR quantity. SOLUTION: An EGR flow passage 2 is slantingly connected at an acute angle to the upstream side of the throttle flow passage 1. Thus, flow passage resistance of a downstream part of the EGR passage 2 reduces, and reduction in the EGR quantity is prevented. An increase in the intake resistance is restrained by reducing inconvenience of disturbing intake air flowing in the throttle flow passage 1 by an outlet part of the EGR flow passage 2 by slantingly connecting the EGR flow passage 2 at an acute angle to the upstream side of the throttle flow passage 1. Although the shaft 4 is further obliquely arranged to the throttle flow passage 1, the throttle valve element 5 is easily installed by adopting a structure for installing ...

TWO-SHUTTER THREE-WAY VALVE

INTEGRATED EGR VALVE AND THROTTLE VALVE

A combustion engine breathing system comprising an air intake conduit (20), an exhaust conduit (30) and an exhaust gas recirculation line (70) extending between the air intake conduit (20) and the exhaust conduit (30), a subassembly comprising a single actuator (300), an exhaust gas recirculation valve (76) and a second valve (120) operatively connected together by a means for lost motion, and wherein the exhaust gas recirculation valve (76) is in the exhaust gas recirculation line (70) and wherein the second valve (120) is in one of the air intake conduit (20) or the exhaust conduit (30).

METHOD FOR CONTROLLING AN EGR CIRCUIT OF A MOTOR VEHICLE ENGINE, VALVE FOR IMPLEMENTING SAID METHOD, AND ENGINE HAVING SAID VALVE

The invention relates to a method for controlling an exhaust gas recirculation circuit (2c) for an internal combustion engine (M) of a motor vehicle. The engine (M) is linked to an air intake circuit (2a) and to a gas exhaust circuit (2b) linked to the air intake circuit (2a) by the recirculation circuit (2c). A first valve (15) controls the flow of air upstream from the recirculation circuit (2c), and a second valve (16) controls the flow of exhaust gases that are recirculated within the recirculation circuit (2c). In the method of the invention, the recirculation of the exhaust gases is in particular controlled by means of measuring a pressure difference across the terminals of the second valve (16). The method comprises the following steps: a) the first and second valves (15, 16) are closed, the first valve (15) being arranged so as to allow, in a closed position, the passage of an air leak current; b) the first and second valves (15, 16) are concomitantly opened so as to provide a sufficient ...

EXHAUST GAS RECIRCULATION DEVICE FOR DIESEL ENGINE

PURPOSE: To prevent exhaust emission from getting worse, by compensating the fundamental EGR rate set on the basis of engine speed and load with atmospheric pressure and cooling water temperature and making it to a desired EGR rate, while controlling the exhaust gas recirculation from a deviation between the former and the actual EGR rate found out of fresh air suction weight. CONSTITUTION: During operation of an engine 1, first a fundamental EGR rate QO is calculated on the basis of engine speed N and accelerator opening at a control unit 10. Next, according to an atmospheric pressure signal and cooling water temperature, an atmospheric pressure compensation value ΔQP and a water temperature compensation value ΔQT are searched with a map, and the fundamental EGR rate QO is compensated by these compensated values, calculating a desired EGR rate Q. On the other hand, an actual EGR rate QR is calculated on the basis of an output signal out of an air flow sensor 14. Then, an error ΔQ between ...

LOW PRESSURE EXHAUST GAS RECIRCULATION MODULE CROSS-REFERENCE TO RELATED APPLICATIONS

One variation may include an assembly comprising a housing assembly having an exhaust flow port and an EGR flow port formed therein, an exhaust flow port valve plate received in the housing assembly constructed and arranged to move to a position to at least partially block flow of gas through the exhaust flow port, and an EGR port valve plate received in the housing assembly and constructed and arranged to move to a position to at least partially block gas through the EGR flow port, and a single actuator connected to move both of the exhaust flow port valve plate and the EGR flow port valve plate. Another variation may include a combined low pressure exhaust gas recirculation valve and exhaust throttle valve including first and second valve plates connected to a common valve shaft in spaced apart relationship.

Mixing valve of a combustion engine of a motor vehicle

Ein Mischventil (6) einer Brennkraftmaschine (1) eines Kraftfahrzeuges hat eine Antriebseinrichtung (8) mit jeweils einem Antriebsritzel (18, 19) und einer Steuerscheibe (16, 17) zum Antrieb zweier Klappen (10, 11). Ein einziger Stellmotor (9) zum Antrieb der Antriebsritzel (18, 19) ist in einem Eckbereich eines Abgaskanals (5) und eines Ansaugkanals (4) angeordnet. Das Mischventil (6) gestaltet sich besonders kompakt.

METHOD FOR CONTROLLING AN EGR CIRCUIT IN A MOTOR VEHICLE ENGINE

Engine with EGR management system

A spark ignition internal combustion engine is provided including an intake manifold. A main throttle regulates the intake of ambient air into the intake manifold. An EGR pipe is connected between a point in the intake manifold downstream of the main throttle and a point in the exhaust system located downstream of the main restriction to exhaust gas flow. The exhaust gas pressure at the latter point is substantially constant during engine operation. An EGR throttle is rigidly connected for movement with the main throttle. The EGR throttle has a similar geometry to the main throttle such that the flow cross sections of the main throttle and the EGR throttle are in a fixed predetermined ratio to one another for all positions of the main throttle.

Exhaust gas recycling valve for a vehicle

An exhaust gas recycling valve for a vehicle includes a valve body (6), a sealing unit (7) and a control cable (8). The sealing unit (7) includes a sealing member (72) mounted movably within an accommodating space (61) in the valve body (6) and disposed at a sealing position. The control cable (8) is fastened to the sealing unit (7) and an accelerator cable (900). When the accelerator cable (900) is operated, the sealing member (72) moves to a non-sealing position.

Mixing device for a low pressure EGR system of an internal combustion engine

EXHAUST GAS RECIRCULATION SYSTEM

PURPOSE: To increase or decrease an EGR ratio in accordance with the heavy or light load of an engine by a method wherein an EGR valve, measuring the recirculating amount of the exhaust gas, is controlled by an EGR control valve so that a pressure difference between an EGR gas chamber and a vacuum chamber for the EGR control valve will become constant. CONSTITUTION: The exhaust gas, taken out of an exhaust pipe 3, is recirculated to a suction pipe 2 through an introducing passage 5, a choking section 6, a pressure chamber 7 and the EGR (exhaust gas recirculation) valve 8. The amount of the recirculation thereof is determined by the opening area of the valve 8 and the pressure difference between the fore part and the hind part of the valve while the amount of suction air is determined by the opening area of a throttle valve 4 and the pressure difference between the fore part and the hind part of the valve. On the other hand, in the EGR control valve 11 controlling the flow amount of the ...

METHOD FOR CONTROLLING AN EGR CIRCUIT IN A MOTOR VEHICLE ENGINE

The invention relates to a method for controlling an exhaust gas recirculation circuit for an internal combustion engine of a motor vehicle. The engine is linked to an air intake circuit and to a gas exhaust circuit linked to the air intake circuit by the recirculation circuit. A first valve controls the flow of air upstream from the recirculation circuit, and a second valve controls the flow of exhaust gases that are recirculated within the recirculation circuit. The method comprises the following steps: a) the first valve is closed, and the second valve is gradually opened; b) if the second valve is opened at an angle greater than a value between 25° and 35°, the first valve is gradually opened concomitantly to the opening of the second valve. As a result of the invention, the EGR rate is easily controllable.

INTEGRATED EGR VALVE AND THROTTLE VALVE

One embodiment of the invention includes a product comprising a combustion engine breathing system subassembly comprising single actuator, a first valve and a second valve operatively connected together by a means for lost motion, and a first conduit and second conduit in fluid communication, and wherein the first is in the first conduit and wherein the second valve is in the second conduit.

TWO-SHUTTER THREE-WAY VALVE

Three-way valve (1) with two shutters (5,6) positioned respectively in two of the three passageways (2, 3) of the valve comprising means (7-12) for controlling and actuating the shutters (5,6) in order to cause them to pivot from one to the other of two positions in which the passageways (2,3) are opened and closed. Single control means (7) are provided for both shutters (5,6) and there are actuating means (9-12) arranged to be controlled by the single control means (7,8) and to actuate the two shutters (5,6) with a time shift.

Mixing valve of an internal combustion engine

A mixing valve of an exhaust-gas recirculation device of an internal combustion engine of a motor vehicle includes an intake flap and an exhaust-gas flap coupled rigidly to one another via a coupling rod. During driving of the exhaust-gas flap, the intake flap is first pivoted in the opposite direction via the coupling rod. The exhaust-gas flap and intake flap are pivoted in the same direction only above a provided pivoting angle. 16-. (canceled)761. A mixing valve () of an internal combustion engine () of a motor vehicle , comprising:{'b': '4', 'an intake duct ();'}{'b': 5', '5', '4, 'an exhaust duct (), wherein, in a first position, the exhaust duct () is closed and the intake duct () is open;'}{'b': 7', '4', '5, 'a common collecting duct () into which the intake duct () and exhaust duct () commonly issue;'}{'b': 10', '4', '12, 'an intake flap () arranged in the intake duct () and having an intake flap control lever ();'}{'b': 11', '5', '13, 'an exhaust flap () arranged in the exhaust duct () and having an exhaust flap control lever ();'}{'b': 8', '10', '11, 'a drive device () driving the intake flap () and the exhaust flap (); and'}{'b': 14', '13', '12, 'a coupling device () coupled to the exhaust flap control lever () and to the intake flap control lever (),'}{'b': 14', '15', '12', '13', '13', '15', '12', '15, 'wherein the coupling device () has a coupling rod () for direct transmission of the movements of the intake flap control lever () and the exhaust flap control lever (), and, in the first position, the exhaust flap control lever () and the coupling rod () are arranged at an obtuse angle relative to one another, and the intake flap control lever () and the coupling rod () are arranged at an acute angle relative to one another.'}81213151110. The mixing valve as claimed in claim 7 , wherein claim 7 , proceeding from the first position claim 7 , the intake flap control lever () and the exhaust flap control lever () and the coupling rod () are arranged such ...

Mixer valve of an internal combustion engine of a motor vehicle

A mixer valve of an internal combustion engine of a motor vehicle has a drive device with a respective drive pinion and a control disc for driving two flaps. A single servomotor for driving the drive pinion is arranged in a corner region of an exhaust gas duct and of an intake duct. 18-. (canceled)9616. A mixer valve () of an internal combustion engine () of a motor vehicle , the mixer valve () comprising:{'b': '4', 'an intake duct ();'}{'b': '5', 'an exhaust duct ();'}{'b': 7', '4', '5, 'a common manifold duct () into which each of the intake duct () and the exhaust duct () issue;'}{'b': 10', '12', '10', '4, 'a first flap (), having a first rotatable shaft () holding the first flap (), arranged in the intake duct ();'}{'b': 11', '13', '11', '5, 'a second flap (), having a second rotatable shaft () holding the second flap (), arranged in the exhaust duct (); and'}{'b': 8', '10', '11', '8, 'claim-text': [{'b': 16', '17', '12', '13', '10', '11, 'first and second control disks (, ) respectively arranged rotationally conjointly on the first and second rotatable shafts (, ) of the first and second flaps (, ), and'}, {'b': 18', '19', '12', '13', '10', '11', '16', '17', '18', '19', '22', '25, 'first and second drive pinions (, ) respectively mounted rotatably, and driven, on the first and second shafts (, ) of the first and second flaps (, ), wherein the control disks (, ) and the drive pinions (, ) have drivers (-) that correspond with one another.'}], 'a drive device () configured to drive the first and second flaps (, ), the drive device () having1014121326292425. The mixer valve as claimed in claim 9 , further comprising a housing () configured to mount the first and second shafts ( claim 9 , ) claim 9 , the housing having stops (-) configured to support the drivers ( claim 9 , ).11181921. The mixer valve as claimed in claim 9 , wherein first and second drive pinions ( claim 9 , ) mesh with a common pinion ().1216173031. The mixer valve as claimed in claim 9 , wherein ...

INTAKE AIR CONTROL APPARATUS OF ENGINE

An intake air control apparatus of an engine includes a housing having an intake air inflow passage for receiving external air, an exhaust gas inflow passage for receiving recirculated exhaust gas, and an intake air supply passage for supplying the external air from the intake air inflow passage or the exhaust gas from the exhaust gas inflow passage to the engine. A motor gear rotates together with an output shaft of the motor. A connection gear is engaged and rotates together with the motor gear. A recirculation gear is engaged and rotates together with the connection gear. A recirculation valve opens and closes the exhaust gas inflow passage since the recirculation valve rotates together with the recirculation gear. An intake air gear is engaged and rotates together with the connection gear. An intake air throttle valve opens and closes the intake air inflow passage. 1. An intake air control apparatus of an engine , comprising:a housing including an intake air inflow passage for receiving external air, an exhaust gas inflow passage for receiving recirculated exhaust gas, and an intake air supply passage for supplying the external air from the intake air inflow passage or the recirculated exhaust gas from the exhaust gas inflow passage to the engine;a motor which is a driving force source;a controller configured to control the motor;a motor gear rotating together with an output shaft of the motor;a connection gear engaged and rotating together with the motor gear;a recirculation gear engaged and rotating together with the connection gear;a recirculation valve disposed inside the exhaust gas inflow passage to open and close the exhaust gas inflow passage by rotating together with the recirculation gear;an intake air gear engaged and rotating together with the connection gear; andan intake air throttle valve disposed inside the intake air inflow passage to open and close the intake air inflow passage by rotating together with the intake air gear.2. The apparatus of ...

Exhaust gas recirculation (egr) valve for vehicle

Disclosed is an exhaust gas recirculation (EGR) valve for a vehicle which achieves regulation of the flow rate of exhaust gas introduced into an engine and the flow rate of fresh air. The EGR valve includes a fresh air flow channel, an EGR flow channel connected to the fresh air flow channel and a valve unit configured to open or close the EGR flow channel and to selectively block the fresh air flow channel according to an opened/closed state of the EGR flow channel. The valve unit includes a first valve to open or close the EGR flow channel and a second valve arranged at one side of the first valve at a different angle from an arrangement angle of the first valve. The second valve is moved along with the first valve to selectively interfere with a flow stream of fresh air in the fresh air flow channel.

Mixing Valve of An Internal Combustion Engine

A mixing valve of an internal combustion engine of a motor vehicle includes: a flap arranged in a suction channel and a flap arranged in an exhaust gas channel. One single flap of the two flaps is drivable via a gear pair with non-round or eccentric gears. The drive of the other flap has lost motion, whereby the closing movements of the flaps can be formed in a particularly free manner with only a single actuating motor. 18-. (canceled)961. A mixing valve () of an internal combustion engine () of a motor vehicle , comprising:{'b': '4', 'an intake duct ();'}{'b': '5', 'an exhaust duct ();'}{'b': 7', '4', '5, 'a common combined duct () into which the intake duct () and exhaust duct () open;'}{'b': 10', '4', '12', '14', '10, 'an intake flap () arranged in the intake duct (), the intake flap having an intake flap shaft () rotatably mounted in a housing () and holding the intake flap ();'}{'b': 11', '5', '13', '14', '11, 'an exhaust flap () arranged in the exhaust duct (), the exhaust flap having an exhaust flap shaft () rotatably mounted in the housing () and holding the exhaust flap (); and'}{'b': 8', '10', '11', '8, 'claim-text': [{'b': '9', 'a single servomotor (),'}, {'b': 26', '10', '11, 'a mechanism () operating the intake flap () and the exhaust flap (), and'}, {'b': 16', '10', '11', '16', '17', '18, 'a gearwheel pair () driving one of the intake flap () and the exhaust flap (), the gearwheel pair () having noncircular or eccentric gearwheels (, ).'}], 'a drive device () driving the intake flap () and the exhaust flap (), the driving device () having10171218132617. The mixing valve as claimed in claim 9 , wherein one of the noncircular or eccentric gearwheels () is arranged on the intake flap shaft () claim 9 , and another of the noncircular or eccentric gearwheels () is arranged on the exhaust flap shaft () claim 9 , and the mechanism () is configured to drive a single one of the noncircular or eccentric gearwheels ().11. The mixing valve as claimed in claim 10 ...

Gear subassembly and exhaust gas recirculation system

A gear subassembly is for an exhaust gas recirculation (EGR) system including an EGR valve and a rotatable shaft provided for the EGR valve. The gear subassembly includes a gear and a cam. The gear is a part of reduction gears and is fastened to the rotatable shaft to rotate therearound. The cam is fastened to the gear and is a part of a link mechanism. The gear includes a metal shaft-fastening part used for fastening the gear to the rotatable shaft, and a metal cam-fastening part used for fastening the gear to the cam. The gear is formed by resin-molding with the shaft-fastening part and the cam-fastening part serving as insert parts.

Control apparatus for internal combustion engine

An intake air quantity information determining arrangement senses or computes one of an intake air quantity and a torque of an internal combustion engine as intake air quantity information. A misfire-avoidance control arrangement executes a misfire-avoidance control operation, which avoids misfire by controlling a throttle opening degree of a throttle valve such that a value of the intake air quantity information does not decrease below a normal combustion threshold value.

Mixing valve of an internal combustion engine

A mixing valve of an internal combustion engine of a motor vehicle includes: a flap arranged in a suction channel and a flap arranged in an exhaust gas channel. One single flap of the two flaps is drivable via a gear pair with non-round or eccentric gears. The drive of the other flap has lost motion, whereby the closing movements of the flaps can be formed in a particularly free manner with only a single actuating motor.

Mixing valve of an internal combustion engine

A mixing valve of an exhaust-gas recirculation device of an internal combustion engine of a motor vehicle includes an intake flap and an exhaust-gas flap coupled rigidly to one another via a coupling rod. During driving of the exhaust-gas flap, the intake flap is first pivoted in the opposite direction via the coupling rod. The exhaust-gas flap and intake flap are pivoted in the same direction only above a provided pivoting angle.