EINLASS- ODER AUSPUFFLEITUNG FÜR HUBKOLBENMASCHINEN

Funktionsbasierte kontinuierliche Auslassventilsteuerung

Ein System zum Steuern von Abgasgeräuschen in einem Fahrzeug beinhaltet ein variables Auslassventil für ein Abgassystem und eine Auslassventilsteuerung, die funktionsfähig mit dem variablen Auslassventil verbunden werden kann. Die Auslassventilsteuerung ist dazu konfiguriert, zwei oder mehrere Steuerbedingungen abzurufen und eine Betriebsabsicht basierend auf den zwei oder mehreren Steuerbedingungen zu ermitteln. Die Auslassventilsteuerung ist so konfiguriert, dass sie ein Steuersignal basierend auf der Betriebsabsicht und den zwei oder mehreren Steuerbedingungen erzeugt und das Steuersignal an das variable Auslassventil übermittelt. Das Steuersignal ändert eine Auslassventilposition des variablen Auslassventils. Die Position des Auslassventils ist so konfiguriert, dass ein Geräuschverhalten des Auslassventils erzeugt wird, das der Betriebsabsicht zugeordnet ist.

Schnappventil für Abgasanlage

Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine, wobei der Schalldämpfer umfasst: – ein Gehäuse mit einem Außenmantel (818) sowie einer Eingangs- und einer Ausgangs-Endkappe, die entgegengesetzte Enden des Mantels umschließen; – mindestens eine Trennwand (814) innerhalb des Gehäuses, die ein Gehäuseinneres in eine erste und eine zweite Kammer aufteilt, wobei in mindestens einer der Kammern schallabsorbierendes Material angebracht ist, wobei die mindestens eine Trennwand (814) mindestens eine durch sie hindurchführende Öffnung aufweist, welche eine Fluidverbindung zwischen der ersten und der zweiten Kammer gewährleistet; – ein Durchgangsrohr, das sich durch die Eingangs- und die Ausgangs-Endkappe sowie die mindestens eine Trennwand (814) hindurch erstreckt und eine Vielzahl von Perforationslöchern (806) aufweist, die eine Fluidverbindung zwischen dem Durchgangsrohr und der ersten Kammer ermöglichen; und – eine Ventilanordnung, die eine Ventilklappe (110) aufweist, welche im Inneren ...

Dämpferventilanordnung

Eine Dämpferventilanordnung für ein Auslasssystem eines Fahrzeugs umfasst ein Ventilgehäuse und eine Ventilklappe. Das Ventilgehäuse ist zur Befestigung an einem Rohr des Auslasssystems ausgeführt und definiert eine Öffnung. Die Ventilklappe ist zwischen einer ersten Stellung, bei der Fluidstrom durch die Öffnung des Ventilgehäuses hindurch gesperrt ist, und einer zweiten Stellung, bei der Fluidstrom durch die Öffnung des Ventilgehäuses hindurch gestattet ist, bezüglich des Ventilgehäuses und um eine Schwenkachse drehbar. Die Ventilklappe umfasst einen Körper und einen Schwingungsdämpfer. Der Schwingungsdämpfer ist mit dem Körper integral und umfasst mehrere Segmente, die derart umgeklappt sind, dass die mehreren Segmente gestapelt angeordnet sind.

Abgassystemfeder mit Torsionsdämpfung

Eine adaptive Ventilbaugruppe umfasst eine Leitung, die einen Durchgang zur Leitung von Motorabgasen definiert, eine von der Leitung gehaltene Drehachse und einen Ventilkörper, der mit der Drehachse gekoppelt ist. Der Ventilkörper ist zwischen einer Offenstellung, in der ein Abgasstrom durch den Durchgang vergrößert wird, und einer Geschlossenstellung verstellbar, in der ein Abgasstrom durch den Durchgang verringert wird. Eine Feder spannt den Ventilkörper in die Geschlossenstellung vor. Die Feder umfasst mehrere Windungen, die relativ zueinander verdreht werden, wenn der Ventilkörper zwischen der Offenstellung und der Geschlossenstellung verstellt wird. Ein Torsionsdämpfungselement ist wenigstens einer der Windungen zugeordnet, um die Feder bezüglich Torsion zu dämpfen.

Schalldämpfer

Die Erfindung betrifft einen Schalldämpfer (1) für ein luftschallführendes Rohrsystem, insbesondere für eine Abgasanlage, vorzugsweise einer Brennkraftmaschine, umfassend ein Gehäuse (2), das einen Innenraum (3) umschließt, ein Einlassrohr (4), das im Innenraum (3) einen Auslass (5) aufweist, ein Bypassrohr (6), das im Gehäuse (2) vom Einlassrohr (4) abgeht und im Innenraum (3) einen Auslass (7) aufweist, ein durch die Gasströmung betätigtes Schaltelement (8), das stromab des Bypassrohrs (6) am oder im Einlassrohr (4) angeordnet ist, und wenigstens ein Auslassrohr (9), das im Innenraum (3) einen Einlass (10) aufweist. Außerdem ist der Innenraum (3) akustisch ungeteilt, derart, dass das vom Luftschall beaufschlagte Volumen des Innenraums (3) bei geöffnetem und bei geschlossenem Schaltelement (8) gleich groß ist.

Internal combustion engine operable with different cycling methods (e.g. two-stroke, four-stroke) has exhaust gas sound damper with different geometries matched to different cycle methods

The engine (1) has exhaust gas damping (6) with different geometries that can be changed by changeover elements depending on engine data. The engine can be operated with different cycling methods (e.g. two-stroke, four-stroke, six stroke or twelve stroke) and the different geometries of the damper are matched to the different cycle methods. An Independent claim is also included for a method.

Perforierte Auspuffklappe

Der Schutzanspruch bezieht sich rein auf die Verwendung eines perforierten Gegenstands zum verschließen der Auspuff-, Abgasanlage um eine Reduzierung der Auspuff-, Abgasgeräusche zu erhalten! Werkstoff, regelmäßige Anordnung, Menge, Form und Größe der Perforation soll hiermit keine Rolle spielen und dient lediglich zu einer x-beliebigen Verschließung.

Auspuffanlage für ein Motorrad

Abgasschalldämpfer

Abgasschalldämpfer mit einem Gehäuse (2), das eine Gaszuleitung (4) und wenigstens eine Gasableitung (5) aufweist, wobei der Gaszuleitung (4) eine Ventilanordnung (10) zugeordnet ist, die in Abhängigkeit wenigstens eines Parameters den Eintrittsquerschnitt für das in das Gehäuse (2) eintretende Abgas verändert, dadurch gekennzeichnet, daß die Ventilanordnung (10) ein Führungsgehäuse (11) und einen darin axial verstellbar gelagerten Ventilkörper (14) sowie Antriebsmittel (18) zum axialen Verstellen des Ventilkörpers (14) im Führungsgehäuse (1.1) aufweist, wobei das Führungsgehäuse (11) radial gasdurchlässig ausgebildet ist und an einem im Gehäuse (2) endenden Endabschnitt (16) der Gaszuleitung (4) befestigt ist, derart, daß die axiale Verstellrichtung (15) des Ventilkörpers (14) im wesentlichen parallel zum Endabschnitt (16) verläuft, wobei der Ventilkörper (14) im Führungsgehäuse (11) zwischen einer ersten Endstellung, in welcher der Ventilkörper, (14) dem Austrittsende (9) angenähert ist ...

A method and a device for the regulation and sound reduction of an air flow

An apparatus, method and computer program for monitoring an exhaust flap within a vehicle

A method for monitoring an exhaust flap 39 of an exhaust system 31 of a vehicle 1 comprises determining a first flow resistance for the exhaust system when the exhaust flap 39 is indicated to be in a first position; determining a second flow resistance for the exhaust system when the exhaust flap is indicated to be in a second position; and determining if the indicated positions of the exhaust flap are correct using the first flow resistance and the second flow resistance. The first position may be a closed position and the second position may be an open position. The flow resistances may be determined from an exhaust pressure and a volumetric flow rate within the exhaust system. A vehicle comprises apparatus having means for carrying out the method. A non-transitory computer readable medium comprises a computer program with instructions that cause an apparatus to perform the method.

EXHAUST SILENCER

PROCEDURE FOR PRODUCING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE LINE OF A LIFTING CYLINDER MACHINE

MUFFLER WITH VARIABLES AN ATTITUDE SYSTEM AND PROCEDURE FOR THE OPERATION OF A MUFFLER

FINGER SHAPED FLAP VALVE

MUFFLER WITH REED VALVE

EXHAUST CONTROL DEVICE OF ENGINE

An exhaust control device for an exhaust system for an internal combustion engine specifically applied to a motorcycle. An exhaust control device is incorporated that includes a single valve body having a plurality of exhaust gas passages that cooperate with each of a plurality of exhaust pipes that extend from the the engine to the valve body. Parallel valve shafts are supported in the valve body and support valves that control the flow through the exhaust gas passages.

Schalldämpfer für die Auspuffgase von Verbrennungsmotoren

Schalldämpfer für Motorfahrzeuge, insbesondere Motorräder.

Dispositif d'échappement silencieux pour moteur à combustion interne.

Exhaust silencer for IC engine

Exhaust silencer for IC engine has internal conical section which can be set at wave node by lever to minimise sound emission ...

MUFFLER FOR USE AT PNEUMATICALLY OPERATED MECHANISMS.

Advanced system of muffler for gas engines and other

CONTROL DEVICE OF the GAS FLOW Of EXHAUST IN a LINE Of EXHAUST, IN PARTICULAR OF MOTOR VEHICLE

Muffler apparatus equalizing the flow of the exhaust gas of an internal combustion engine

Improvements to exhaust silencer for pressurized gas

Silent apparatus for internal combustion engines

Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls

Improvement brought in the establishment of the silencers for spark-ignition engines

소음기

... 소음기는 유체가 유입되는 도입부(15)와, 내부에 유체의 흐름 방향으로 배치된 소리의 감쇠부(21, 22)를 복수 구비하는 하우징(14)과, 최하류의 감쇠부와 해당 최하류의 감쇠부에 인접하는 인접 감쇠부를 연통시키는 중간 연통부(35)가 설치된 제1 구획부(23)와, 최하류의 감쇠부에 배치되어, 중간 연통부(35)를 폐색 가능한 밸브부(18)와, 밸브부(18)를 보유 지지하여, 하우징(14)에 착탈 가능한 밸브 보유 지지부(17)와, 밸브 보유 지지부(17) 이외의 부분에 설치되어, 최하류의 감쇠부로부터 유체를 도출하는 도출부(16)를 구비한다.

Structure of exhaust pipe with pressure adjustment and sound volume adjustment functions

COMPRESSOR OF AN EXHAUST-GAS TURBOCHARGER

The invention relates to a compressor (8) of an exhaust- gas turbocharger (1), having a compressor wheel (11) which can be driven in a compressor wheel direction of rotation (VR); having a compressor housing (10) in which the compressor wheel (1 1) is arranged, as viewed in the flow direction of the inducted air, between a preferably tubular compressor inlet (12) and a compressor outlet (13), and having an overrun air recirculation valve inflow duct (14, 15) which runs in the compressor housing (10) from the compressor outlet (13) to the compressor inlet (12), wherein the inflow duct (14, 15) opens into the compressor inlet (12) substantially in the circumferential direction with respect to the inner diameter (Di) of said compressor inlet (12).

AUTOMOTIVE EXHAUST SILENCER SYSTEM WITH VARIABLE DAMPING CHARACTERISTICS

An automotive exhaust silencer system (1) consisting of exhaust silencers (2, 3) and an actuator (4) for modifying the flow resistance of the waste gas flowing therethrough by modifying the damping characteristics . The actuator (4) is provided with an inlet (6) and two outlets (7,8) in a branch-off (5). Each outlet (7 or 8) is connected to a silencer (2 or 3) by means of a conduit (9 or 10) and the flow diameter (D) of the inlet (6) can be modified by the actuator.

Marine exhaust system

A marine exhaust system is provided for separating the gas from the water of gas/water mixture produced by a marine engine, and expelling the gas a sufficient distance from the hull of a boat to place it outside of the turbulent boundary layer surrounding the hull and the low pressure area following behind the boat. A nozzle having a variable outlet area is mounted anidship on the hull for maintaining a predetermined pressure within the exhaust system in order to expel the gases a maximum distance from the boat. In addition, apparatus are provided for removing the water from the exhaust system prior to the gases reaching an acoustical chamber for attenuating exhaust gas noises.

DYNAMICALLY ADJUSTING TUNED EXHAUST SYSTEM

A method and apparatus, for adjusting an exhaust, having an at least one body element with a housing member having an at least one exhaust outlet. An at least one exhaust element is contained within the at least one body element with an at least one slip section and an at least one spring member. An at least one pressure regulating member extends and is slidingly held between the at least one body element and the at least one exhaust element. The pressure regulating member separates a pressure chamber section within the housing, wherein the pressure regulating member is pressed against the at least one spring member by pressures built up by exiting exhaust gasses in the pressure chamber resulting in a variation in the length of the exhaust system.

DEVICE FOR INFLUENCING AN EXHAUST GAS FLOW

Muffler controller for use in controllable exhaust system of internal combustion engine

СИСТЕМА РЕГУЛИРОВАНИЯ ОТРАБОТАВШЕГО ГАЗА И СПОСОБ РЕГУЛИРОВАНИЯ ОТРАБОТАВШЕГО ГАЗА

... 1. Система регулирования отработавшего газа содержащая ! - дроссельный клапан (4) для отработавшего газа, установленный в канале (5) для отработавшего газа, ! - исполнительное устройство (6) дроссельного клапана (4) для отработавшего газа с тягой (7) управления, ! - устройство (8) для регулирования давления (P1) отработавшего газа, возникающего в канале (5) для отработавшего газа выше по течению дроссельного клапана (4) для отработавшего газа, !отличающаяся тем, что тяга (7) управления содержит регулирующий исполнительный орган (9), предназначенный для взаимодействия с объемом (10), уравновешивающим давление, причем объем (10), уравновешивающий давление, пневматически соединен с дроссельным отверстием (11) выше по течению дроссельного клапана (4) для отработавшего газа. !2. Система по п.1, отличающаяся тем, что устройство (8) для регулирования давления отработавшего газа содержит устройство, ограничивающее давление отработавшего газа. ! 3. Система по п.1 или 2, отличающаяся тем, что дроссельный ...

Vehicle IC engine exhaust damper

An inlet pipe (1) flows into a housing (4) which exits via two tail pipes (3) behind which are two perforated muffler tubes (5) with a central unobstructed path (6) between them. Both the path and tubes exit into an outlet chamber. An inlet chamber sits upstream of the muffler pipes and has a conical plug (7) fitted to a threaded shaft which has an adjuster knob (8). By rotating the plug on it threaded shaft the cone is driven in and out altering the orifice cross-section and consequently the flow back pressure and noise level.

SCHALLDÄMPFER FÜR ABGASSYSTEME

Abgasschalldämpfer

Die Erfindung zeigt einen Abgasschalldämpfer (1) mit einem Gehäuse (2), das eine Gaszuleitung (4) und eine Gasableitung (5) aufweist. Der Gaszuleitung (4) ist eine Ventilanordnung (10) zugeordnet, die in Abhängigkeit wenigstens eines Parameters, z. B. Abgasgegendruck, den Eintrittsquerschnitt für das in das Gehäuse (2) eintretende Abgas verändert. DOLLAR A Um den Aufbau eines solchen Abgasschalldämpfers (1) zu vereinfachen, kann die Ventilanordnung (10) ein Führungsgehäuse (11), einen darin axial verstellbaren Ventilkörper (14) und Antriebsmittel (18) zum axialen Verstellen des Ventilkörpers (14) im Führungsgehäuse (11) aufweisen. Das Führungsgehäuse (11) ist radial gasdurchlässig ausgebildet und an einem im Gehäuse (2) endenden Endabschnitt (16) der Gaszuleitung (4) befestigt, derart, daß die axiale Verstellrichtung (15) des Ventilkörpers (14) etwa parallel zum Endabschnitt (16) verläuft. Der Ventilkörper (14) ist zwischen einer ersten Endstellung, in welcher er dem Austrittsende (9) angenähert ...

Schalldaempfer fuer Brennkraftmaschinen o. dgl.

ARBEITSVERFAHREN ZUR SCHALLDAEMPFUNG IN GASFUEHRENDEN ANLAGEN MIT DYNAMISCHEN DRUCKSCHWANKUNGEN IM STROEMUNGSMEDIUM, INSBESONDERE IN ABGASANLAGEN VON BRENNKRAFTMASCHINEN.

Gases from a multicylinder engine (1) are led through a chamber (8) which may be a combined absorption/reflection silencer. Between this and a catalytic converter (9), the flow through an intermediate tubular section (4) is throttled by a rotary valve (10) operated by a stepper motor (12) in a control circuit (13). An angular position sensor (15) associated with the crankshaft supplies signals to a compensatory network (17), which receives inputs also from the ignition circuit (18) and a reference cylinder TDC sensor (19). The position of the stepper motor (12) is detected (16) and fed back to the compensatory network (17).

Exhaust system for internal combustion engines

Silencer for internal combustion engines

... 441,764. Exhaust-silencers. TYDEN, E. O. E., 36, Hantverkaregatan, Stockholm. July 20, 1934, Nos. 21318, 21319, 21320, 21321, and 21322. Convention dates, Nov. 21, 1933, March 22, 1934, April 3, 1934, April 17, 1934, and May 4, 1934. [Class 7 (ii)] A silencer comprising a body or bodies located in the exhaust gas pipe and provided with a plurality of flow passages extending in or approximately in the longitudinal direction of the pipe, is characterized by said passages being made in such manner that the length of the passages is at least ten times their diameter or largest cross-sectional dimension, and the sum of their smallest cross-sectional areas is substantially smaller than the crosssectional area of the pipe so that a choking of the gases is effected. In Fig. 1, the passages 3 are formed in a body 2 of metal or other heat-resisting material secured in the pipe 1 some distance from its end. In a modification, Fig. 3 (not shown), the passages are inclined to the axis of the pipe. In ...

Exhaust coupling

An apparatus, method and computer program for monitoring an exhaust flap within a vehicle

EXHAUST DEVICE FOR INTERNAL-COMBUSTION ENGINES AND VEHICLE WITH THIS DEVICE

MUFFLER FOR WASTE GAS SYSTEMS

MUFFLER EMPLOYMENT

Silencer

COMBINED CATALYTIC MUFFLER

A catalytic muffler having at least one reactor bed (20, 22) each bed having an array of discreet adjacent flow zones (30, 32, 34, 36). The flow zones are interconnected by a series of passages (50, 52, 54) for unidirectional flow (90) of a gaseous fluid sequentially through each adjacent zone (30, 32, 34, 36) in turn from an inlet side of each reactor bed (42) to an outlet side of the reactor bed (44). An inlet (72) fluidly communications with a first of the flow zones (30). An outlet (74) fluidly communicates with the last of the flow zones (36).

An exhaust gas pressure regulator

Muffler improved for internal combustion engine

CONTROL DEVICE OF the GAS FLOW Of EXHAUST Of an INTERNAL COMBUSTION ENGINE, IN PARTICULAR MOTOR VEHICLE

SILENCER WITH a VARIABLE CHARACTERISTIC Of DAMPING OF the NOISES

Silencer for the exhaust flue gas of internal combustion engines

Cap of exhaust for spark-ignition engines

Silencer to deaden the noise of spaced discharges of gas fluids

I.c. engine exhaust muffler internal passage shutter

Le dispositif d'obturation (38) d'un passage interne (36) d'un pot d'échappement (10) comporte un volet d'obturation (40) mobile entre une position d'obturation au moins partielle dudit passage (36), et une position dégagée dudit passage (36), et un organe (44) de sollicitation dudit volet (40) vers une position de repos. L'organe de sollicitation (44) comporte un ressort (76) de rappel du volet (40) vers sa position de repos, et un piston (64) couplé mécaniquement au volet (40) et monté coulissant dans un corps (45) délimitant deux chambres (72, 74) de volume variable en fonction de la position du piston (64). Un ajutage assure le transfert, d'une chambre vers l'autre, d'un fluide remplissant les deux chambres, lors du mouvement du piston (64).

PASSIVE VALVE ASSEMBLY WITH NEGATIVE START ANGLE

A passive valve assembly for a vehicle exhaust system includes an exhaust component that defines an exhaust gas flow path and a vane that is positioned within the exhaust gas flow path. The vane is positioned at an initial start position and is movable between a closed position to provide a minimum exhaust gas flow and an open position to provide a maximum exhaust gas flow. The start position is orientated at a negative angle relative to the closed position.

Externally mounted in-line exhaust gas valve

A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve shaft and a valve plate. The housing defines an inlet, an outlet, and a longitudinally exhaust gas passageway in fluid communication with the inlet and the outlet. The valve shaft is rotatable. The valve plate is coupled to the valve shaft and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The first housing includes spaced apart ears integral with and laterally extending from the first housing. The ears opposing each other. The shaft includes an axis of rotation being positioned at the ears and outside of the exhaust gas passageway.

Exhaust device for internal combustion engines

An exhaust device is provided comprising a first diverging portion extending into a cylindrical envelope into which is axially displaceably mounted a streamlined conically shaped member adapted to be moved in relationship to the engine rating.

EXPANSION CHAMBERED, PRESSURE RELIEF MUFFLER

Straddle-Type Vehicle and Combustion Controller for Straddle-Type Vehicle

A straddle-type vehicle 30 includes a vehicle body frame 31, an engine 1 mounted on the vehicle body frame 31, combustion adjusting devices (fuel injection valves) 14 and 15 for adjusting the combustion condition of the engine 1, and a combustion controller (ECU) 22 for controlling the fuel injection valves 14 and 15. The ECU 22 controls the fuel injection valves 14 and 15 such that the maximum point of a sound pressure level waveform of an audible sound wave generated from the engine 1 or the vehicle body frame 31 is shifted by a predetermined amount or larger within a predetermined period at least in some of the operation conditions of the engine 1.

EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE

An exhaust muffler includes a first muffler section having a tubular member made up of an inner pipe to which an exhaust pipe is connected and an outer pipe covering the inner pipe, and a connector connecting the tubular member and a second muffler section to each other, and the second muffler section having an outer shell, a first partition wall, a second partition wall, and a third partition wall. Exhaust gases delivered from the exhaust pipe are discharged from the first muffler section and the second muffler section out of the exhaust muffler. The second muffler section has a cross-sectional area larger than a cross-sectional area of the tubular member. The exhaust muffler includes a first expansion chamber, a second expansion chamber, and a third expansion chamber. The second muffler section includes a fluid communication pipe extending through the first partition wall and the second partition wall for leading exhaust gases from the first expansion chamber into the second expansion ...

Flapper finger valve

A flapper finger valve assembly for use in an exhaust system. The flapper finger valve assembly includes a tube (24) having a plurality of orifices (22) therethrough. The flapper finger valve (12) assembly also includes a plurality of flapper finger valves (12) generally having a C-shape wherein the flapper finger valves (12) are arranged on an outside surface of the tube (24). The flapper finger valves (12) are capable of radial movement with respect to the tube (24). A plurality of retainers (28) generally having a C-shape are arranged around the flapper finger valve (12). These retainers will define a maximum radial movement for such flapper finger valves (12) on the tube (24). The flapper finger valve assembly also includes a fastener (36) which will secure the flapper finger valves (12) between a tube (24) and retainers (36) in the flapper finger valve assembly.

EXHAUST GAS CONTROL SYSTEM AND EXHAUST GAS CONTROL METHOD

The invention relates to an exhaust gas control system (1) and an exhaust gas control method. Said exhaust gas control system (1) comprises an exhaust gas throttle valve (4) in an exhaust gas channel (5) and an actuation device (6) of said exhaust gas throttle valve (4) comprising an actuating rod (7). An exhaust gas pressure control device (8) controls the exhaust gas pressure (P 1 ) occurring upstream of the exhaust gas throttle valve (4) in the exhaust gas channel (5). Said actuating rod (7) also comprises a control actuator (9) that interacts with a pressure compensation volume (10). Said pressure compensation volume (10) is pneumatically connected to a throttle opening (11) upstream of the exhaust gas throttle valve (4).

EXHAUST ASSEMBLY FOR USE WITH COMBUSTION ENGINES, AND VEHICLE PROVIDED WITH SUCH ASSEMBLY

An exhaust assembly for use with a motor vehicle having a combustion engine, which exhaust assembly comprises combustion engine-connecting means, at least one exhaust and at least one muffler, wherein means are provided for controlling the damping characteristic of the exhaust assembly. The exhaust assembly comprises at least a first combustion gas flow route and a second combustion gas flow route, wherein the means for controlling the damping characteristic are operable during use of the exhaust assembly with a combustion engine coupled thereto and are adapted to guide the combustion gases of the engine at least partly along one of the combustion gas flow routes.

Schalldämpfer mit umschaltbarer Dämpfungscharakteristik

Abgassystem einer Brennkraftmaschine

Ventil in einer abgas-Schalldämpfer-Anlage eines Kraftfahrzeugs

Ein Ventil in einer Abgas-Schalldämpfer-Anlage eines Kraftfahrzeuges mit das Innere eines Gehäuses der Schalldämpfer-Anlage nach außerhalb dieses Gehäuses verbindenden, Abgas führenden Öffnungen, soll aufbaumäßig einfach und funktionell sicher ausgestaltet sein. DOLLAR A Zu diesem Zweck zeichnet sich ein solches Ventil durch folgende Merkmale aus DOLLAR A - eine der Gehäuse-Öffnungen (4) ist mit einem verschiebbar an dem Gehäuse gelagerten, im Inneren des Gehäuses des liegenden Verschlußelementes (7) verschließbar, DOLLAR A - bei geschlossener Öffnung (4) liegt das Verschlußelement (7) dichtend auf dem Rand der zu verschließenden Öffnung (4) auf, DOLLAR A - die Verschiebeachse des Verschlußelementes (7) verläuft mit Bezug auf die Gehäuse-Öffnungsebene senkrecht, DOLLAR A - das Verschlußelement (7) ist an einen Stellmotor angelenkt.

Dynamic exhaust system for vehicular i.c. engines

A down-pipe 1 receives exhaust gases from the engine and delivers them via an inlet port 2 to an exhaust pipe 3 having an outlet port 4. A valve member 11 protrudes into and through the inlet port 2 and is biassed by a spring 10 towards the down-pipe 1 so that the area of the inlet port is reduced at lower engine speeds, fig. 1, and increased at higher engine speeds, fig.2, to maintain a required back-pressure at the inlet port 2. A series of abutting or neighbouring baffle pods 5, each comprising a shell 7 with a plurality of slots 8, may be placed inside the exhaust pipe 3 so as to define an annular passageway 6 for the flow of exhaust gases. The pods 5 may be located downstream of the spring, fig. 1, or between the valve member 11 and the spring 10, fig.2. Each pod 5 may comprise sound-deadening wadding placed between a slotted inner drum (16, fig.4) and an outer drum (17).

Exhaust valve apparatus

An exhaust valve assembly 2 for controlling exhaust gas flow from an internal combustion engine 3 includes a pivotally mounted valve body 7 which is movable between an open position and a closed position. A valve control mechanism 12 controls the valve body and has a biasing means 13 for biasing the valve body towards the closed position. The valve control mechanism has a protective housing 20 for protecting the biasing means. The protective housing may partially or completely enclose the biasing means, and may comprise a substantially sealed chamber. The housing may have first and second parts, which may translate or rotate relative to each other. The housing may comprise a resiliently deformable cover attached to couplings at first and second ends of the biasing means. The biasing means may be a torsion spring or a tension spring. A vehicle (4, fig 1) comprises an exhaust system (1) having the exhaust valve assembly.

EXHAUST STRAND OF AN INTERNAL-COMBUSTION ENGINE AND A MOTOR VEHICLE EXHIBITING SUCH A EXHAUST STRAND

MUFFLER PLANT OF A MOTOR VEHICLE WITH VARIABLE ABSORPTION CHARACTERISTIC

MUFFLER

MUFFLER

EXHAUST MONITORING SYSTEM AND EXHAUST RULE PROCEDURE

WASTE GAS SYSTEM OF AN INTERNAL-COMBUSTION ENGINE

SOUND LEVEL ADJUSTABLE MUFFLER

A sound level adjustable muffler has a pop-up mechanism working in parallel pairs used for lifting the tabletop part of a piece of furniture has a pair of cantilever arms joined together by an upper oblong member and a lower oblong member, both said upper oblong member and lower oblong member being parallel relative to each other and each being rotationally attached to opposite ends of said pair of cantilever arms.

COMBINED CATALYTIC MUFFLER

A catalytic muffler having at least one reactor bed (20, 22) each bed having an array of discreet adjacent flow zones (30, 32, 34, 36). The flow zones are interconnected by a series of passages (50, 52, 54) for unidirectional flow (90) of a gaseous fluid sequentially through each adjacent zone (30, 32, 34, 36) in turn from an inlet side of each reactor bed (42) to an outlet side of the reactor bed (44). An inlet (72) fluidly communications with a first of the flow zones (30). An outlet (74) fluidly communicates with the last of the flow zones (36).

Snap-action valve for exhaust system

A passive, exhaust pressure actuated valve assembly for placement inside a tubular exhaust conduit is pivotally mounted to an off-center axle for rotation between fully closed and fully opened positions. A bias element forces the valve flap toward the fully closed position. The valve flap is shaped in a manner enabling use of the interior surface of the exhaust conduit to define stops at the full closed and full opened positions. The valve flap shape, in conjunction with the bias element arrangement, enables the flap to lie substantially parallel to a longitudinal axis of the conduit in the fully opened position, which provides for minimum back pressure in the conduit. The valve assembly finds particularly advantageous use inside a bypass through pipe of a muffler assembly.

Tube giving a double mode of pressure loss

WINNOW FOR a SILENCER OF LINE Of EXHAUST Of a MOTOR VEHICLE

Controller for exhaust gas flow in motor vehicle exhaust system

Ce dispositif de commande de l'écoulement des gaz d'échappement d'un moteur à combustion interne, notamment de véhicule automobile, dans une ligne d'échappement comportant d'une part au moins un pot d'échappement (101) qui comprend une chambre d'entrée (105) et une chambre de sortie (107) séparées par une coupelle (103) percée d'une ouverture de communication (115), et d'autre part des moyens de commande (117) de l'écoulement des gaz dans le pot qui comportent des moyens de réglage (119) de la section de passage des gaz au travers de l'ouverture de communication (115), dont le fonctionnement est piloté par des moyens de manoeuvre (121) en fonction de la pression dans le pot est caractérisé en ce que les moyens de manoeuvre (121) comprennent au moins un actionneur manométrique (123) disposé dans le pot et sensible à la pression régnant dans celui-ci en amont de l'ouverture de communication (115).

Muffler for gas compressors

Shock absorber of sound for spark-ignition engines

Exhaust device for internal combustion engine with two scavenging strokes

The exhaust pipe comprises, downstream from the expansion chamber 4, an additional pressure reducing chamber 5 separated from the main chamber by a non-return valve 7. At low speed, the additional chamber has the time to empty between two explosions and the assembly behaves as a single large-volume chamber. At high speed, following an explosion, the additional chamber retains a certain pressure at the moment of the following explosion and practically only the main chamber is used, which reduces the dimension of the pressure-reducing pipe.

MUFFLER WITH REED VALVE PROVIDING CONTINUOUS VENTING

DEVICE FOR SEALING AN EXHAUST LINE PIPE

The invention relates to a device (3) for sealing the end (4) of a pipe (1) which belongs to the exhaust line of an internal combustion engine and which defines an exhaust gas passage. The inventive device (3) comprises: (i) a check valve (5) which is associated with pivot mounting means (6) which enable said valve (5) to pivot between a closed pipe (1) position and at least one open pipe position; and (ii) means (11) for returning the valve (5) to the closed pipe (1) position. The invention is characterised in that it comprises means (13) which, at least in the open pipe (1) position, are arranged to divert the exhaust gas flow from the pipe (1) in relation to the return means (11), such as to prevent the gas from reaching said return means (11). © KIPO & WIPO 2007 ...

HIGH-PERFORMANCE MUFFLER ASSEMBLY WITH MULTIPLE MODES OF OPERATION

A high-performance muffler assembly (10) for exhaust system of an internal combustion engine. The muffler assembly comprises an elongated casing (20) having an inlet port (25) and an exit port (27) , a first pipe (34) disposed within the casing and having an inlet end (34a) in fluid communication with the inlet port and an outlet end (34b) selectively fluidly connected to the exit port of the casing, and a first valve (54) mounted within the casing. The first valve is selectively movable between a closed position and an open position for regulating an exhaust gas flow through the first pipe. The muffler assembly is operable in a number of different modes of operation including a high-performance mode, an exhaust braking mode, a reverse-flow mode, etc., determined by the positions of the first valve of the muffler assembly.

Electrically actuated flow assisted exhaust valve

An exhaust valve includes a flapper valve that is pivotable within an exhaust component between open and closed positions. The flapper valve is supported on a shaft that is coupled to an actuator. The flapper valve comprises a disc-shaped body that is fixed to the support shaft such that the disc-shaped body is asymmetrical about the axis of rotation.

Exhaust silencer

An exhaust silencer includes a flow pipe supported in a housing. A space is defined between the flow pipe and the housing. At least one movable flap is located in the space and is resiliently biased to a closed position and movable by exhaust gas pressure from said closed position to an opened position. The at least one flap provides less restriction to exhaust gas flow through the space in the opened position as compared to the closed position. The one or more flaps are pivotably supported on a spring-biased hinge assembly or are provided as part of a resiliently deformable baffle plate that uncovers flow apertures under force of exhaust pressure. The baffle plate is selectively removable by an end-user to allow for maximum exhaust flow when desired. The flow pipe can be omitted in a base plate only version.

Hybrid valve for attenuation of low frequency noise

A hybrid valve assembly for an exhaust system includes an exhaust tube having a bore defining an exhaust flow path. A vane is mounted within the bore and is moveable between an open position and a closed position. A resilient member biases the vane toward the closed position. A valve actuator has an ON position where movement of the vane is actively controlled by the valve actuator and an OFF position where movement of the vane is passively controlled by exhaust gas flow.

Control System for a Valve

The preferred invention is directed to a controller for a vehicle exhaust valve. The controller comprises a vehicle interface for determining a live value for an operating parameter of a vehicle, a recording module being configured to, upon activation, instantaneously record the live value of the operating parameter, and a programming module for determining a value range based on the recorded live value and allowing a desired position of the valve to be set such that during operation, the control system automatically moves the valve to the desired position when the operating parameter is within the value range.

Externally Mounted In-Line Exhaust Gas Valve

A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve shaft and a valve plate. The housing defines an inlet, an outlet, and a longitudinally exhaust gas passageway in fluid communication with the inlet and the outlet. The valve shaft is rotatable. The valve plate is coupled to the valve shaft and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The first housing includes spaced apart ears integral with and laterally extending from the first housing. The ears opposing each other. The shaft includes an axis of rotation being positioned at the ears and outside of the exhaust gas passageway. 1. A valve assembly for an exhaust system of a vehicle , the valve assembly comprising:a first housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;a rotatable valve shaft; anda valve plate coupled to the valve shaft, the valve plate rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted,the first housing including spaced apart ears integral with and laterally extending from the first housing, the ears opposing each other, the shaft including an axis of rotation being positioned at the ears and outside of the exhaust gas passageway.2. The valve assembly of claim 1 , wherein the ears extend upwardly from respective sides of the first housing.3. The valve assembly of claim 1 , wherein each ear has a trunnion formed therein.4. The valve assembly of claim 3 , wherein a cavity extends at least partially through each trunnion claim 3 , and wherein a bushing is disposed on opposing ends of the valve shaft and within the cavity.5. The valve assembly of claim ...

EXTERNALLY MOUNTED IN-LINE EXHAUST GAS VALVE

A valve assembly for an exhaust system of a vehicle. The valve assembly includes a first housing, a second housing, a valve flap and a spring. The first housing defines an inlet, an outlet, and an exhaust gas passageway in fluid communication with the inlet and the outlet. The second housing is attached to the first housing and defines a compartment. The valve flap is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is allowed. The spring is disposed in the compartment and out of the exhaust gas passageway. The spring engages the valve flap to bias the valve flap toward the first position. 1. A valve assembly for an exhaust system of a vehicle , the valve assembly comprising:a first housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;a second housing coupled to the first housing and at least partially defining a compartment;a valve flap rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted; anda spring disposed in the compartment and outside of the exhaust gas passageway, the spring urging the valve flap toward the first position.2. The valve assembly of claim 1 , wherein the spring extends in the longitudinal direction.3. The valve assembly of claim 1 , wherein the first housing includes an anchor extending into the compartment claim 1 , and wherein the spring has a first end attached to the anchor and a second end attached to an end section of the valve flap positioned in the compartment.4. The valve assembly of claim 3 , wherein the end section has a first portion and a second portion claim 3 , and wherein the second portion extends away from the first portion at an angle.5. The valve assembly of ...

EXTERNALLY MOUNTED IN-LINE EXHAUST GAS VALVE

A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve flap and a mass damper. The housing defines an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet. The valve flap is disposed in the housing and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The mass damper is disposed within the exhaust gas passageway. The mass damper is attached to the valve flap and comprise of a material having a high density. The mass damper is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position. 1. A valve assembly for an exhaust system of a vehicle , the valve assembly comprising:a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted; anda mass damper disposed within the exhaust gas passageway, the mass damper attached to the valve flap and comprised of a material having a high density,wherein the mass damper is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position,wherein the mass damper includes end portions and an intermediate portion disposed between the end portions, and wherein the intermediate portion has a thickness that is greater than a thickness of the end portions,the valve assembly further comprising a fastener extending through an aperture in a respective end portion and an aperture in the valve flap to attach the valve flap and the mass damper ...

MUFFLER ASSEMBLY

A muffler assembly () that includes a first exhaust gas outlet portion (), and a second exhaust gas outlet portion (), with a valve () being operable to determine the volume of gas leaving through each outlet portions () to govern the resistance of exhaust gas flowing through the muffler assembly (). 1. A muffler assembly for an internal combustion engine exhaust , the assembly having an exhaust inlet , the assembly including:a muffler having:a casing surrounding a space and having opposite first and second end portions, the first end portion;a first, a second and a third internal wall, each wall being located in the space to divide the space into a first, a second, a third and a fourth chamber with the first chamber being located between the first wall and the first end portion, the fourth chamber being located between the fourth wall and the second end portion, the second chamber being located between the first wall and the second wall, and the third chamber being located between the second wall and the third wall;a first duct extending through said space from the inlet to a first exhaust outlet portion to provide for the flow of exhaust gas, along a passage provided by the first duct, to atmosphere;a second duct, the second duct extending from the first chamber to the fourth chamber to provide for the flow of exhaust gas from the first chamber to the fourth chamber;a plurality of apertures in the first duct providing for communication between the passage and said second chamber;openings in said first duct providing for the flow of exhaust gas from said passage to said first chamber;an opening in said third wall providing for the flow of exhaust gas between the third and fourth chambers;at least one opening in said duct providing for the flow of exhaust gas between said passage and said third chamber; and wherein a hollow valve body through which exhaust gas may pass and being mounted at said outlet external of said casing to provide for adjustable resistance to ...

EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

An exhaust system for an internal combustion engine; the exhaust system comprises: at least one an exhaust duct, which originates from the internal combustion engine; at least one exhaust gas treatment device, which is arranged along the exhaust duct; and a silencing device, which is arranged along the exhaust duct downstream of the exhaust gas treatment device. The silencing device comprises a silencing valve, which intercepts the exhaust duct and is movable between a completely open position and a completely closed position. In the completely closed position, the silencing valve has a first free section for the passage of the exhaust gases having a first area other than zero, so that the exhaust gases can flow through the silencing valve even when the silencing valve is in the completely closed position. 1646) An exhaust system () for an internal combustion engine (); the exhaust system () comprises:{'b': 7', '4, 'at least one an exhaust duct (), which originates from the internal combustion engine ();'}{'b': 8', '7, 'at least one exhaust gas treatment device (), which is arranged along the exhaust duct (); and'}{'b': 10', '7', '8', '11', '7, 'a silencing device (), which is arranged along the exhaust duct () downstream of the exhaust gas treatment device () and comprises a silencing valve (), which intercepts the exhaust duct () and is movable between a completely open position and a completely closed position;'}{'b': 11', '1', '11', '11, 'wherein, in the completely closed position, the silencing valve () has a first free section for the passage of the exhaust gases having a first area (A) other than zero, so that the exhaust gases can flow through the silencing valve () even when the silencing valve () is in the completely closed position; and'}{'b': 12', '13', '11, 'wherein, in the completely closed position, the first free section consists of two slits (), which are separate from one another and are arranged at opposite ends of a shutter () of the silencing ...

Structure for utilizing exhaust heat of vehicle

A structure for utilizing exhaust heat of a vehicle is provided. The structure includes a first part that has an exhaust pipe in which exhaust gas having a predetermined temperature passes through and which is heated by exchanging heat with the exhaust gas. A bypass passageway is installed within the exhaust pipe and the exhaust gas is bypassed through the bypass passageway. A thermoelectric element is attached to an exterior of the exhaust pipe, formed by bonding a P-type semiconductor and an N-type semiconductor, and produces electricity using a thermoelectric effect. A second part is attached to the exterior of the thermoelectric element and coolant flows therein. A first exhaust gas passageway is installed in the second part in a longitudinal direction and the exhaust gas passes through the first exhaust gas passageway to heat the coolant.

GASOLINE PARTICULATE FILTER DIAGNOSTICS

Methods and systems are provided for diagnostics of a gasoline particulate filter in an exhaust system. In one example, a method may include during conditions where a differential pressure sensor is exposed to changing exhaust pressure, indicating degradation of a hose coupled across a particulate filter in an exhaust system responsive to a change in differential pressure measured by the differential pressure sensor being different than an expected change, the differential pressure sensor positioned in the hose and the particulate filter positioned upstream of an exhaust tuning valve. 1. A method , comprising:during conditions where a differential pressure sensor is exposed to changing exhaust pressure, indicating degradation of a hose coupled across a particulate filter in an exhaust system responsive to a change in differential pressure measured by the differential pressure sensor being different than an expected change, the differential pressure sensor positioned in the hose and the particulate filter positioned upstream of an exhaust tuning valve.2. The method of claim 1 , wherein the exhaust tuning valve is coupled across a muffler positioned in an exhaust passage of the exhaust system downstream of a connection point claim 1 , the connection point including a location where an outlet of the hose is configured to couple to the exhaust passage or to the particulate filter.3. The method of claim 1 , wherein the conditions where the differential pressure sensor is exposed to changing exhaust pressure comprise a decrease in exhaust mass flow through the exhaust system claim 1 , and wherein indicating degradation of the hose responsive to the change in differential pressure being different than the expected change comprises indicating degradation responsive to the change in differential pressure being less than the expected change.4. The method of claim 1 , wherein the conditions where the differential pressure sensor is exposed to changing exhaust pressure comprise ...

Exhaust Flap for an Exhaust System of a Motor Vehicle, Controller for Such an Exhaust Flap, and Method for Operating Such an Exhaust Flap

An exhaust flap for an exhaust system of a motor vehicle, which has an internal combustion engine and an electronic processing device for a closed-loop control of the internal combustion engine, has a valve element, an actuator for moving the valve element, and a dedicated electronic processing device. The dedicated electronic processing device is configured to receive a first signal which is provided by the electronic processing device of the motor vehicle and which characterizes a first position of the valve element, generate a second signal which characterizes a second position of the valve element as a function of the received first signal, and transmit the second signal to the actuator. The actuator moves the valve element into the second position based on the received second signal. 1. An exhaust flap for an exhaust system of a motor vehicle which has an internal combustion engine and an electronic processing device for a closed-loop control of the internal combustion engine , comprising:a valve element;an actuator, wherein the valve element is movable by the actuator; and receive a first signal which is provided by the electronic processing device of the motor vehicle and which characterizes a first position of the valve element;', 'generate a second signal which characterizes a second position of the valve element, wherein the second position differs from the first position, as a function of the received first signal; and', 'transmit the second signal to the actuator;, 'a dedicated electronic processing device which is configured towherein the actuator is configured to receive the transmitted second signal from the dedicated electronic processing device and move the valve element into the second position based on the received second signal.2. The exhaust flap according to claim 1 , wherein the valve element is movable in an adjustment range which comprises the second position and a plurality of further positions claim 1 , wherein the exhaust flap is ...

Flutter Dampened Exhaust Valve

A snap-action valve assembly for an exhaust system is provided that includes a first conduit and a second conduit that are joined to together to define an exhaust passageway. A valve flap is disposed within the exhaust passageway for controlling exhaust flow. A shaft supports the valve flap in the exhaust passageway for rotation between open and closed positions. First and second bushings support the shaft. A pad made of wire mesh is attached to the valve flap. The pad includes an end portion that contacts the first or second conduit in the closed position and side wings that contact the first or second conduit in the open position. A resilient tongue may support the pad on an angle relative to the valve flap and a mass damper may be attached to one end of the shaft. These features dampen vibration and reduce valve flap flutter. 1. A snap-action valve assembly for an exhaust system comprising:a first conduit extending along a central axis to define an exhaust passageway therein;a valve flap disposed within said exhaust passageway for controlling exhaust flow through said exhaust passageway;a shaft supporting said valve flap in said exhaust passageway for rotation about a pivot axis between a closed position and an open position; anda mass damper external to said first conduit that is rotatably coupled to said shaft such that said mass damper rotates with said shaft, said mass damper including a linear segment extending along a primary mass damper axis between a pair of damper ends, a first transverse segment, and a second transverse segment, said first and second transverse segments extending from said pair of damper ends, and each of said first and second transverse segments extending in a transverse direction relative to said primary mass damper axis.2. The snap-action valve assembly of claim 1 , wherein said primary mass damper axis is transverse to said pivot axis.3. The snap-action valve assembly of claim 2 , wherein said linear segment and said first and ...

Slotted Snap-Action Valve Assembly For Exhaust System

A snap-action valve assembly for an exhaust system and a method for manufacturing the same is provided. The valve assembly includes a first conduit and a second conduit that is partially received in the first conduit. A valve flap is disposed within the first conduit for controlling exhaust flow. A shaft supports the valve flap in the first conduit for rotation between open and closed positions. The first conduit has first and second slots, each extending from an open slot end to a closed slot end. First and second bushings supporting the shaft are disposed within the slots between the second conduit and the closed slot ends. A pad made of wire mesh is attached to the valve flap. The pad includes an end portion that contacts the first conduit in the closed position to dampen vibration and reduce valve flap flutter. 1. A snap-action valve assembly for an exhaust system comprising:a first conduit extending along a central axis from a junction end to a distal end, said first conduit having a first conduit wall with an outside surface and an inner mating surface;a second conduit extending co-axially with said central axis between an insertion end and a proximal end, said second conduit having a second conduit wall with an inner surface and an outer mating surface;said first and second conduits cooperating to define an exhaust passageway therein that extends from said proximal end of said second conduit to said distal end of said first conduit;a valve flap disposed within said first conduit for controlling exhaust flow through said exhaust passageway;a shaft supporting said valve flap in said first conduit for rotation about a pivot axis between a closed position and an open position;first and second bushings supporting said shaft on said first conduit, each of said first and second bushings including a shaft opening that receives said shaft;said insertion end of said second conduit being received in said junction end of said first conduit such that said outer mating ...

Alignment System for Slotted Snap-Action Valve Assembly for Exhaust System

A snap-action valve assembly for an exhaust system and a method for manufacturing the same is provided. The valve assembly includes a first conduit and a second conduit that is partially received in the first conduit. A valve flap is disposed within the first conduit for controlling exhaust flow. A shaft supports the valve flap in the first conduit for rotation between open and closed positions. The first conduit has first and second slots, each extending from an open slot end to a closed slot end. First and second bushings subassemblies supporting the shaft are disposed within the slots between the second conduit and the closed slot ends. Each of the first and second bushing subassemblies includes an alignment system in the form of protrusions that limit insertion of the first and second bushing subassemblies into the first and second slot to a single orientation. 1. A snap-action valve assembly for an exhaust system comprising:a first conduit extending from a junction end to a distal end, said first conduit having a first conduit wall;a second conduit extending between an insertion end and a proximal end, said second conduit having a second conduit wall;said insertion end of said second conduit being received in said junction end of said first conduit such that said first and second conduits cooperate to define an exhaust passageway therein that extends from said proximal end of said second conduit to said distal end of said first conduit;a valve flap disposed within said exhaust passageway for controlling exhaust flow through said exhaust passageway;a shaft supporting said valve flap in said exhaust passageway for rotation about a pivot axis between a closed position and an open position;first and second bushing subassemblies supporting said shaft on said first conduit;said first conduit including first and second slots, each of said first and second slots extending through said first conduit wall from an open slot end positioned at said junction end of said ...

Muffler with Selected Exhaust Pathways

The muffler for a motorized vehicle includes a housing with an inlet chamber and an outlet chamber, an exhaust inlet, and an exhaust outlet. The muffler includes a first channel with a first noise dampening amount that is within the housing interior, to fluidly connect the inlet chamber and the outlet chamber. The muffler includes second channel with a second noise dampening amount that is within the housing interior between the inlet chamber and the outlet chamber. The first noise dampening amount is greater than the second noise dampening amount. A valve selectively fluidly connects the inlet chamber and the outlet chamber thorough the second channel, and is configured to variably obstruct the flow of exhaust gas through the second channel. In various embodiments, the muffler has more than one inlet chamber and more than one exhaust outlet. 1. A muffler for a motorized vehicle , the muffler comprising:a housing forming a housing interior having an inlet chamber and an outlet chamber;an exhaust inlet for receiving exhaust gas in the inlet chamber;an exhaust outlet for directing exhaust gas from the outlet chamber;a first channel within the housing interior to fluidly connect the inlet chamber and the outlet chamber, the first channel having a first noise dampening amount;to a second channel within the housing interior between the inlet chamber and the outlet chamber, the second channel having a second noise dampening amount, the first noise dampening amount being greater than the second noise dampening amount; anda valve within the housing interior configured to control a proportion of exhaust gas flowing through each of the first and second channels, wherein the proportions may simultaneously be non-zero.2. The muffler as defined by claim 1 , further comprising a controller that is operatively coupled with the valve and configured to control the position of the valve.3. The muffler as defined by claim 2 , further comprising a motor within the housing interior ...

EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

An exhaust system for an internal combustion engine includes a muffler, a first exhaust pipe which is connected to the muffler for sound damping, and a second exhaust pipe which extends in terms of flow in parallel relation to the first exhaust pipe and extends through first muffler in the absence of a flow communication with the first muffler. The first and second exhaust pipes originate from a common exhaust pipe. A switching valve adjusts hereby a throughflow cross section of the second exhaust pipe. 1. An exhaust system for an internal combustion engine , comprising:a first muffler;a first exhaust pipe connected to the first muffler for sound damping;a second exhaust pipe extending in terms of flow in parallel relation to the first exhaust pipe and configured to extend through the first muffler in the absence of a flow communication with the first muffler, said first and second exhaust pipes originating from a common exhaust pipe; anda switching valve configured to adjust a throughflow cross section of the second exhaust pipe.2. The exhaust system of claim 1 , wherein the switching valve is configured as an exhaust gas recirculation valve claim 1 , further comprising an exhaust gas recirculation pipe disposed upstream of the switching valve branching off the second exhaust pipe or the common exhaust pipe.3. The exhaust system of claim 1 , wherein the switching valve is disposed downstream of the muffler.4. The exhaust system of claim 1 , wherein the first muffler is constructed as rear muffler.5. The exhaust system of claim 1 , further comprising at least one second muffler disposed upstream of the first muffler claim 1 , said first exhaust pipe connected to the second muffler for sound damping claim 1 , said second exhaust pipe extending through the second muffler in the absence of a flow communication with the second muffler.6. The exhaust system of claim 1 , wherein the first exhaust pipe causes a pressure loss which is greater than a pressure loss caused by ...

EXHAUST SYSTEM SPRING WITH TORSIONAL DAMPING

An adaptive valve assembly includes a pipe defining a passageway for conducting engine exhaust gases, a pivot shaft supported by the pipe, and a valve body coupled to the pivot shaft. The valve body is moveable between an open position where exhaust gas flow through the passageway is increased and a closed position where exhaust gas flow through the passageway is reduced. A spring biases the valve body toward the closed position. The spring includes a plurality of coils that have torsional displacement relative to each other as the valve body moves between the open and closed positions. A torsional damper feature is associated with at least one coil of the plurality of coils to provide torsional spring damping. 1. An adaptive valve assembly comprising:a pipe defining a passageway for conducting engine exhaust gases at a location downstream of a vehicle engine;a pivot shaft supported by the pipe;a valve body coupled to the pivot shaft, the valve body moveable between an open position where exhaust gas flow through the passageway is increased and a closed position where exhaust gas flow through the passageway is reduced;a spring biasing the valve body toward the closed position, the spring comprised of a plurality of coils that have torsional displacement relative to each other as the valve body moves between the open and closed positions; anda torsional damper feature associated with at least one coil of the plurality of coils to provide torsional spring damping.2. The adaptive valve assembly according to wherein the plurality of coils includes at least a first set of at least two adjacent coils that are spaced apart from each other by a first distance and a second set of at least two adjacent coils that are spaced apart from each other by a second distance that is greater than the first distance.3. The adaptive valve assembly according to wherein the spring has a first spring end fixed to a non-rotating structure and a second spring end configured for rotation with ...

EXHAUST VALVE FOR MUFFLER AND MUFFLER INCLUDING THE SAME

An exhaust valve for a muffler which is mounted inside the muffler includes: a mounting bracket having an arc shape; a shaft which is rotatably connected to the mounting bracket; a flap which is fixed to the shaft and rotates together with the shaft; and an elastic member which elastically support the flap with respect to the mounting bracket. 1. An exhaust valve for a muffler which is mounted inside the muffler , comprising:a mounting bracket having an arc shape;a shaft which is rotatably connected to the mounting bracket;a flap which is fixed to the shaft and rotates together with the shaft; andan elastic member which elastically support the flap with respect to the mounting bracket.2. The exhaust valve of claim 1 , wherein both end portions of the shaft are rotatably connected respectively to both end portions of the mounting bracket.3. The exhaust valve of claim 2 , wherein the shaft is disposed to be offset from a center of the flap.4. The exhaust valve of claim 2 , wherein insert holes are formed in both end portions of the mounting bracket claim 2 , and the shaft is disposed to be inserted into the insert holes.5. The exhaust valve of claim 4 , further comprising a stopping unit which stops rotation of the flap.6. The exhaust valve of claim 5 , wherein the stopping unit comprises:a stopping lever one end of which is fixed to one end of the shaft so as to rotate together with the shaft; anda stopping protrusion which is fixed to the mounting bracket to block the stopping lever when the flap is in a closing position.7. The exhaust valve of claim 6 , wherein the stopping unit further comprises a noise reducing member which is provided to the stopping lever or the stopping protrusion to reduce noise when the stopping lever collides with the stopping protrusion.8. The exhaust valve of claim 2 , further comprising a seating portion which allows a portion of the shaft to be stably seated to the flap.9. The exhaust valve of claim 8 , wherein the elastic member is a ...

MUFFLER FOR VEHICLE

A muffler for a vehicle includes: a muffler shell; a baffle disposed within the muffler shell, and having a first opening and a second opening which allow an exhaust gas to pass therethrough; and a variable valve mounted on the baffle. In particular, the variable valve includes: a valve plate rotatably mounted to open and close the first opening of the baffle; a valve arm connected to the valve plate; and a valve actuator to move the valve arm by variations in pressure of the exhaust gas. The valve plate is capable of rotating in a plane parallel to a plane of the baffle. 1. A muffler for a vehicle , the muffler comprising:a muffler shell;a baffle disposed within the muffler shell, and having a first opening and a second opening, which allow an exhaust gas to pass therethrough; anda variable valve mounted on the baffle,wherein: a valve plate rotatably mounted to open and close the first opening of the baffle,', 'a valve arm connected to the valve plate, and', 'a valve actuator configured to move the valve arm by variations in pressure of the exhaust gas,, 'the variable valve includesthe valve plate is capable of rotating in a plane parallel to a plane of the baffle, andthe valve plate is rotatably mounted on the baffle through a shaft to maintain a contact with a surface of the baffle.2. The muffler according to claim 1 , wherein the valve actuator includes an actuator housing having a receiving space which receives the exhaust gas through the second opening claim 1 , andthe receiving space of the actuator housing directly communicates with the second opening of the baffle.3. The muffler according to claim 2 , wherein the valve plate has a lug extending from an outer peripheral edge thereof claim 2 , andthe lug is rotatably mounted on the baffle through the shaft.4. The muffler according to claim 3 , wherein the valve arm is moved by the pressure of the exhaust gas received in the receiving space of the actuator housing claim 3 ,the lug has a guide projection ...

HEAT EXCHANGER FOR EXHAUST TUNING SYSTEM

Methods and systems are provided for a heat exchanger phase change material installed as a component of a variable exhaust tuning system. In one example, a method may include absorbing excess heat energy from exhaust gases during and after an engine-on event within a heat exchanger material, releasing heat energy stored in the heat exchanger material during and after an engine-off event, and heating an adjustable exhaust valve with the heat energy stored in the heat exchanger material. 1. A method for assessing the heat capacity of a heat exchanger of an adjustable engine exhaust valve , comprising:monitoring ambient air temperature, a heat exchanger temperature, and an engine-on time at engine-on event,determining if the heat exchanger temperature has reached a heat threshold within a threshold time, andif the heat threshold has not been reached within the threshold time then latching a heat exchanger error, andalerting a vehicle operator that the heat threshold has not been reached.2. The method of claim 1 , further comprising monitoring the heat exchanger temperature via at least one temperature sensor.3. The method of claim 1 , wherein the threshold time may be adjusted based upon the ambient air temperature.4. The method of claim 1 , wherein the threshold time begins with the engine-on time and ends at a programmable time.5. The method of claim 1 , further comprising the heat exchanger error being sent to a vehicle operator as an audio and/or visual alarm.6. A device for preventing ice formation on a post-catalyst variable exhaust tuning system claim 1 , comprising:an inner heat exchanger layer,an outer heat exchanger layer,a heat exchanger material between the inner and outer heat exchanger layers,at least one temperature sensor, andan adjustable exhaust valve.7. The device of claim 6 , wherein the heat exchanger material is encased by the inner and outer heat exchanger layers.8. The device of claim 6 , wherein the heat exchanger material comprises a wax claim ...

EXHAUST HEAT RECOVERY AND ACOUSTIC VALVE WITH EXHAUST GAS RECIRCULATION FEATURES

A vehicle exhaust system includes an exhaust pipe defining an exhaust gas flow path, a heat recovery device connected to the exhaust pipe, and a diverter valve that controls exhaust gas flow between the exhaust pipe and heat recovery device. The diverter valve is moveable between at least a heat recovery mode where the diverter valve blocks flow through the exhaust pipe and directs flow into the heat recovery device, a full bypass acoustic mode where the diverter valve blocks flow through the heat recovery device and directs flow through the exhaust pipe, a transition mode where the diverter valve partially blocks flow through the heat recovery device and partially blocks flow through the exhaust pipe, and a partial bypass acoustic mode where the diverter valve blocks flow through the heat recovery device and partially blocks flow through the exhaust pipe. 1. A vehicle exhaust system comprising:an exhaust pipe defining a primary exhaust flow path;a heat recovery device connected to the exhaust pipe and defining a heat recovery flow path;an exhaust gas recirculation unit coupled to the heat recovery device and configured to recirculate selected exhaust gas back to an engine intake for mixing with fresh air that enters the engine, the exhaust gas recirculation unit including a recirculation conduit defining a recirculation flow path and a recirculation valve that controls flow of the selected exhaust gas through the recirculation flow path, anda diverter valve that controls exhaust gas flow between the exhaust pipe and heat recovery device, the diverter valve being moveable between at least a heat recovery mode where the diverter valve blocks flow through the exhaust pipe and directs flow into the heat recovery device, a full bypass acoustic mode where the diverter valve directs flow through the exhaust pipe, and a partial bypass acoustic mode where the diverter valve partially blocks flow through the exhaust pipe.2. The vehicle exhaust system of claim 1 , wherein the ...

HEAT EXCHANGER FOR A MOTOR VEHICLE

A heat exchanger for a motor vehicle may include an outer pipe through which hot gas may flow, the outer pipe extending along a longitudinal direction, defining an outer pipe interior, and including two outer pipe walls in a cross section perpendicular to the longitudinal direction. The heat exchanger may also include an inner pipe arranged in the outer pipe interior, the inner pipe extending along the longitudinal direction, being closed on a first longitudinal end, defining an inner pipe interior, and including two inner pipe walls in the cross section. The inner pipe walls may include a plurality of apertures by which the inner and outer pipe interiors may communicate fluidically. The heat exchanger may further have a plurality of thermoelectric modules arranged on an outer side of the outer pipe walls, each having a hot side facing the outer pipe and a cold side facing away from the outer pipe, and at least one coolant pipe through which a coolant may flow and which is arranged on the cold side of at least one thermoelectric module. 1. A heat exchanger for a motor vehicle , comprising:an outer pipe through which hot gas is flowable, the outer pipe extending along a longitudinal direction, defining an outer pipe interior, and including at least two outer pipe walls in a cross section perpendicular to the longitudinal direction;an inner pipe arranged in the outer pipe interior, the inner pipe extending along the longitudinal direction, being closed on a first longitudinal end, defining an inner pipe interior, and including at least two inner pipe walls in the cross section perpendicular to the longitudinal direction;a plurality of apertures in at least one inner pipe wall by which the inner pipe interior communicates fluidically with the outer pipe interior;a plurality of thermoelectric modules arranged on an outer side of the outer pipe walls, each thermoelectric module having a hot side, which faces the outer pipe, and a cold side, which faces away from the ...

HEAT EXCHANGER FOR A MOTOR VEHICLE

A heat exchanger for a motor vehicle may include an outer pipe through which hot gas may flow, the outer pipe extending along a longitudinal direction, defining an outer pipe interior, and including two outer pipe walls in a cross section perpendicular to the longitudinal direction. The heat exchanger may also include an inner pipe arranged in the outer pipe interior, the inner pipe extending along the longitudinal direction, being closed on a first longitudinal end, defining an inner pipe interior, and including two inner pipe walls in the cross section. The inner pipe walls may include a plurality of apertures by which the inner and outer pipe interiors may communicate fluidically. The heat exchanger may further have a plurality of thermoelectric modules arranged on an outer side of the outer pipe walls, each having a hot side facing the outer pipe and a cold side facing away from the outer pipe, and at least one coolant pipe through which a coolant may flow and which is arranged on the cold side of at least one thermoelectric module. 1. A heat exchanger for a motor vehicle , comprising:an outer pipe through which hot gas is flowable, the outer pipe extending along a longitudinal direction, defining an outer pipe interior, and including two outer pipe walls in a cross section perpendicular to the longitudinal direction;an inner pipe arranged in the outer pipe interior, extending along the longitudinal direction, being closed on a first longitudinal end, defining an inner pipe interior, and including two inner pipe walls in the cross section perpendicular to the longitudinal direction;a plurality of apertures in the inner pipe walls by which the inner pipe interior communicates fluidically with the outer pipe interior;a plurality of thermoelectric modules arranged on an outer side of the outer pipe walls, each thermoelectric module having a hot side, which faces the outer pipe, and a cold side, which faces away from the outer pipe; andat least one coolant pipe ...

Triple baffled muffler

A triple-baffled muffler enables an engine sound that changes from very quiet when idling to louder as the throttle is pressed. The muffler provides three baffles which are hinged over the center of the muffler. The exhaust pressure travels through the muffler and pushes the baffles until they open to release the pressure. The angle of incidence of the baffles on their hinges governs the loudness of the sound. 1. A baffled muffler , comprising:a. a cylindrical muffler having a center line;b. a plurality of internal baffles;c. a plurality of hinges;d. said hinges being mounted within said cylindrical muffler along said center line;e. said plurality of internal baffles being attached to said plurality of hinges.2. The muffler of claim 1 , wherein exhaust pressure travels through the muffler and pushes the baffles until they open to release the pressure.3. The muffler of claim 1 , wherein angle of incidence of the baffles on their hinges governs the loudness of the sound.4. The muffler of claim 1 , wherein two ring-shaped mounting plates are provided on the muffler claim 1 , near the input end and output end of the muffler.5. The muffler of claim 1 , wherein the muffler is provided in a variety of sizes to fit any gasoline or diesel powered vehicle.6. The muffler of claim 1 , wherein said plurality of baffles is equal to three in number and said plurality of hinges is equal to three in number.7. The muffler of claim 1 , further comprising counterweights; said hinges extending through said muffler such that each end of said hinge extends outside of said muffler; said counterweights being attached to the ends of said hinge.8. The muffler of claim 7 , further comprising braces; said braces being attached externally on said muffler; said braces being positioned such that said counterweights rotation is stopped at a resting angle wherein said baffles are closed.9. The muffler of claim 8 , wherein said braces use springs.10. The muffler of claim 8 , wherein said plurality of ...

Exhaust sound tuning system and method

Methods and systems are provided for adjusting a position of an exhaust valve that regulates engine exhaust noise. In one example, the position of the exhaust valve is adjusted according to a distance between a first vehicle and a second vehicle. The exhaust valve may be adjusted to reduce an exhaust noise level when the distance between the first vehicle and the second vehicle is less than a threshold distance.

EXHAUST VALVE DEVICE

An exhaust valve device includes a valve body, a valve seat, a support shaft, a coil spring, and a cushion member. The valve body is placed in an exhaust passage in a silencer, and configured to open and close the exhaust passage. The valve body abuts against the valve seat when the valve body is closed. The support shaft is fixed to the valve seat, and supports the valve body to be able to swing freely. The support shaft is inserted in the coil spring. The coil spring biases the valve body. The cushion member is interposed between the coil spring and the support shaft. The cushion member is rotatable relative to the support shaft. 1. An exhaust valve device comprising:a valve body placed in an exhaust passage in a silencer, and configured to open and close the exhaust passage;a valve seat against which the valve body abuts when the valve body is closed;a support shaft fixed to the valve seat, and supporting the valve body to be able to swing freely;a coil spring in which the support shaft is inserted, the coil spring biasing the valve body; anda cushion member interposed between the coil spring and the support shaft, the cushion member being rotatable relative to the support shaft.2. The exhaust valve device of claim 1 , whereinthe cushion member is shorter than the support shaft, and interposed between the coil spring and the support shaft at one end part in an axial direction of the coil spring, at which the coil spring abuts the valve body.3. The exhaust valve device of claim 1 , whereinthe cushion member is placed between a part of the coil spring that biases the valve body, and the support shaft, and is provided integrally with the valve body, andwhen opening and closing the valve body, the cushion member swings together with the valve body.4. The exhaust valve device of claim 3 , whereinthe cushion member is spaced apart from the support shaft by a prescribed clearance.5. The exhaust valve device of claim 3 , whereinthe cushion member is integrated with the ...

Valve Assembly For Exhaust System

A valve assembly for an exhaust system of a vehicle comprises a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet. The valve assembly further comprises a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. A mass damper is disposed within the exhaust gas passageway and attached to the valve flap. The mass damper includes end portions and an intermediate portion disposed between the end portions with the intermediate portion having a thickness that is greater than a thickness of the end portions. The mass damper is positioned proximate an inner surface of the housing and positioned between the valve flap and the housing when the valve flap is at the second position. 1. A valve assembly for an exhaust system of a vehicle , comprising:a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet;a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted; anda mass damper disposed within the exhaust gas passageway, the mass damper attached to the valve flap,wherein the mass damper includes end portions and an intermediate portion disposed between the end portions, the intermediate portion having a thickness that is greater than a thickness of the end portions, the mass damper being positioned proximate an inner surface of the housing as well as being positioned between the valve flap and the housing when the valve flap is at the second position.2. The valve assembly of claim 1 , wherein the intermediate portion of the mass ...

MUFFLER FOR SINGLE-CYLINDER DIESEL ENGINE

A muffler for single-cylinder diesel engines with an integrated oxidation catalyst is provided, such that the muffler is connected to the cylinder head of the engine, that the muffler housing is divided into two chambers, that is, an inlet chamber and an outlet chamber, by means of an intermediate wall and that the oxidation catalyst is secured in the intermediate wall such that it fludically connects together both chambers. 132835310. A muffler for a single-cylinder diesel engine having an oxidation catalyst in the muffler housing , which is attached to the cylinder head of the engine , wherein the muffler housing is divided by an intermediate wall () into two chambers and the oxidation catalyst () is fastened in the intermediate wall () in such a way that it places two chambers fluidically in communication with one another , and wherein an outlet chamber () of the muffler , connected downstream from the intermediate wall () in flow direction , is joined in gas-tight manner to an outlet pipe () for the post-treated exhaust gas , wherein:{'b': 3', '14', '9', '15', '9, 'the muffler housing is attached by means of a flanged joint directly to the cylinder head and the intermediate wall () has openings for gas-tight installation of mounting pipes (), which traverse the muffler housing and at their engine-side ends are fastened to the inside of a muffler-side attachment flange () in association with its joint bores (), for the purpose of applying a screw coupling of the attachment flange () to a corresponding flange part of the cylinder head.'}2922. The muffler of claim 1 , wherein the muffler-side attachment flange () is welded at its lateral periphery in a gas-tight manner to an embossment () of the muffler housing encircling it.33. The muffler of claim 1 , wherein the intermediate wall () is fastened in a gas-tight manner between two housing parts of the muffler housing.4328. The muffler of claim 1 , wherein the intermediate wall () has an opening for the penetration ...

Device for thc reducing of exhaust gas in cng-diesel dual fuel engine system

A device for reducing total hydrocarbon (THC) contained in exhaust gas in a CNG-diesel dual fuel engine system, includes: an engine providing power for the diesel and outputting exhaust gas due to operation; a MOC (Methane Oxidation Catalyst) oxidizing and discharging CH4 contained in exhaust gas discharged from the engine; an exhaust valve disposed in a pipe connecting the rear end of the engine and the front end of the MOC, and discharging the exhaust gas produced by the engine; a first temperature sensor disposed at the front end of the exhaust valve and measuring the temperature of exhaust gas coming from the engine; a second temperature sensor disposed at the rear end of the exhaust valve and measuring the exhaust gas discharged from the exhaust valve and flowing into the MOC; and an exhaust valve control unit increasing the temperature of exhaust gas flowing into the MOC.

Variable ball valve and methods of use

An apparatus includes a variable valve placed into the interior of a ball valve for various advantages. In one embodiment a variable valve comprised of rollers is engineered into a standard ball valve thereby providing the advantages of the high sealing pressure of a ball valve and the fine flow control of a variable valve using rollers. In one embodiment a plurality of variable ball valves enhance flow in a system. In another embodiment superior sealing and high pressure operation is achieved. In another embodiment high voltage is added to ionize gasses.

EXHAUST SYSTEM FOR ADJUSTING PERFORMANCE OF A VEHICLE

An exhaust system includes an ability to adjust the noise and performance of a vehicle. In one version, the system includes a pipe having an inlet connectable to an engine of the vehicle, with a valve configured to selectively direct the exhaust flow either through the muffler and its typical spiral baffles, or alternatively to be diverted for a more direct exhaust path without travelling through the spiral baffles for muffling effect. 1. An exhaust system , comprising:a central pipe having an inlet end and an exit end and defining a first interior space, the inlet end being configured for connection to an engine;a set of baffles attached to the exterior of the central pipe between the inlet end and the exit end;an outer casing, a first end wall, and a second end wall combining to enclose the set of baffles in a second interior space defined between the exterior surface of the central pipe and the outer casing, the inlet end of the central pipe extending laterally beyond the first end wall and the outlet end of the central pipe extending laterally beyond the second end wall;a cutout formed in the central pipe, the cutout providing a path of travel between the first interior space and the second interior space;a valve mounted within the first interior space adjacent the cutout, the valve being configured to operate between an open position in which gases entering the inlet end are allowed to travel all the way through the first interior space and through the exit end, and a closed position in which the valve blocks the first interior space and directs gases entering the inlet end through the cutout and into the second interior space such that gases entering the inlet end are prevented from traveling all the way through the first interior space and through the exit end; andan opening formed in the central pipe adjacent the exit end and between the valve and the exit end, the opening providing a path of travel between the second interior space and the first interior ...

PASSIVE EXHAUST VALVE ASSEMBLY AND FORMING METHOD

A passive valve assembly for an engine exhaust system includes an exhaust conduit for transferring exhaust gases from the engine and a valve plate that is operably disposed within the exhaust conduit. A pivot rod has an internal section that is coupled with the valve plate, such that the valve plate may pivot between an open position and a closed position. The pivot rod also has an external section that protrudes from the exhaust conduit. A stop feature is disposed at or near an exterior surface of the exhaust conduit in a location arranged to contact the external section of the pivot rod and prevent the valve plate from pivoting beyond one of the open position and the closed position. 1. A passive exhaust valve , comprising:a conduit for transporting exhaust gases;a pivot rod extending through a wall of the conduit to define a internal section and an external section of the pivot rod;a valve plate disposed in the conduit and coupled with the internal section of the pivot rod, the pivot rod rotatable to move the valve plate between open and closed positions; anda stop feature coupled with the conduit and arranged to contact the external section of the pivot rod when the valve plate pivots toward at least one of the open and closed positions to prevent further rotation of the pivot rod beyond the respective open or closed position.2. The passive exhaust valve of claim 1 , wherein the stop feature is configured to resiliently flex upon contact with the pivot rod as the valve plate moves toward the open or closed position claim 1 , thereby effectively reducing noise.3. The passive exhaust valve of claim 1 , wherein the pivot rod spans across an internal volume of the conduit and pivotally engages an opposing wall of the conduit.4. The passive exhaust valve of claim 1 , further comprising:a cover member coupled with the conduit to substantially conceal an aperture in the wall of the conduit at or near the intersection with the pivot rod.5. The passive exhaust valve of ...

Function based continuous exhaust valve control

A system for controlling exhaust noise in a vehicle includes a variable exhaust valve for an exhaust system, and an exhaust valve controller operatively connectable to the variable exhaust valve. The exhaust valve controller is configured to retrieve two or more control conditions, and determine an operational intent based on the two or more control conditions. The exhaust valve controller is configured to generate a control signal based on the operational intent and the two or more control conditions, and transmit the control signal to the variable exhaust valve. The control signal changes an exhaust valve position of the variable exhaust valve. The exhaust valve position is configured to create an exhaust noise response associated with the operational intent.

HEAT EXCHANGER FOR A RANKINE CYCLE IN A VEHICLE MUFFLER

A vehicle is provided with an engine having an exhaust gas system comprising a muffler body containing a valve controlling exhaust gas flow through a tuning tube. The vehicle has an expander, a condenser, a pump, and an evaporator in sequential fluid communication in a closed loop containing a working fluid. The evaporator is positioned within the body and supports the valve and tuning tube therein, with the evaporator in thermal contact with exhaust gas and the working fluid. 1. A vehicle comprising:an engine having an exhaust gas system comprising a muffler body containing a valve controlling exhaust gas flow through a tuning tube; andan expander, a condenser, a pump, and an evaporator in sequential fluid communication in a closed loop containing a working fluid;wherein the evaporator is positioned within the body and supports the valve and tuning tube therein, the evaporator in thermal contact with exhaust gas and the working fluid.2. The vehicle of further comprising a controller in communication with the valve claim 1 , and a temperature sensor for sensing a temperature of the working fluid claim 1 , the controller controlling a position of the valve to control exhaust gas flow through the evaporator in response to receiving a signal indicative of the temperature of the working fluid.3. The vehicle of wherein the temperature sensor is positioned between the condenser and the pump in the closed loop.4. The vehicle of wherein the controller is in communication with a pressure sensor for sensing a pressure of the working fluid claim 2 , the controller controlling the position of the valve to control exhaust gas flow through the evaporator further in response to a signal indicative of the pressure of the working fluid.5. The vehicle of wherein the valve is positioned at a downstream end of the tuning tube; andwherein the controller controls the position of the valve such that the working fluid comprises a liquid phase at an inlet to the pump.6. The vehicle of ...

VEHICLE INCLUDING CABIN DISTURBANCE MITIGATION SYSTEM

An automotive vehicle includes an internal combustion engine that generates exhaust gas and an exhaust system that expels the exhaust gas from the vehicle via at least one of a first exhaust conduit and a second exhaust conduit. A disturbance sensor is installed within a cabin of the vehicle, and is configured to detect a disturbance within the cabin and to output a disturbance signal indicative of the disturbance. An exhaust valve has a plurality of positions and adjusts an amount of the exhaust gas delivered to the first and second exhaust conduits. The automotive vehicle further includes an electronic hardware controller in signal communication with the at least one disturbance sensor and the exhaust valve. The controller adjusts the position of the exhaust valve based on the disturbance signal to reduce the disturbance within the cabin. 1. An automotive vehicle , comprising: an exhaust system configured to expel the exhaust gas from the vehicle via at least one of a first exhaust conduit and a second exhaust conduit;', 'at least one disturbance sensor installed within a cabin of the vehicle, the at least one disturbance sensor configured to detect a disturbance within the cabin and to output a disturbance signal indicative of the disturbance;', 'an exhaust valve having a plurality of positions, each position of the exhaust valve determining an amount of the exhaust gas delivered to the first and second exhaust conduits; and', 'an electronic hardware controller in signal communication with the at least one disturbance sensor and the exhaust valve, the controller configured to adjust the position of the exhaust valve based on the disturbance signal to reduce the disturbance within the cabin., 'an internal combustion engine that generates exhaust gas in response to combusting an air/fuel mixture;'}2. The vehicle of claim 1 , wherein the controller determines a disturbance characteristic of the detected disturbance and adjusts the position of the exhaust valve in ...

VALVE UNIT INCLUDING AN INTERFACE

A modular valve unit for controlling the flow rate of an intake or exhaust gas of a combustion engine through the passage of a valve, the valve unit comprising a valve having a valve housing () and at least one valve flap (). The valve unit further comprises an interface () and an adapter (), the interface () being connected to the valve housing () and having a support () and an engagement portion comprising at least two engagement legs () projecting from the distal end of the support () and being directed away from the valve housing (). The adapter () has a connection plate () having at least two engagement orifices () for receiving the engagement legs () of the interface () and a mounting portion for holding an actuator (). The at least two engagement orifices () of the connection plate () of the adapter () are each configured to engage the corresponding at least two engagement legs () of the engagement portion of the interface (). 1. Valve unit for controlling the flow rate of an intake or exhaust gas of a combustion engine through the passage of a valve , the valve unit comprising:a valve having a valve housing and at least one valve flap,wherein the valve unit further comprises an interface and an adapter, the interface being connected to the valve housing and having a support and an engagement portion comprising at least two engagement legs projecting from the distal end of the support and being directed away from the valve housing,wherein the adapter has a connection plate having at least two engagement orifices, in particular through holes, for receiving the engagement legs of the interface and a mounting portion for holding an actuator, andwherein the at least two engagement orifices of the connection plate of the adapter are each configured to engage the corresponding at least two engagement legs of the engagement portion of the interface.2. Valve unit according to claim 1 , wherein at least the connection plate of the adapter is made of sheet metal.3. ...

CHANGEOVER VALVE

A changeover valve includes: a valve body portion that closes an opening formed at a switching position of an exhaust flow path; a fixing portion that rotatably fixes the valve body portion; a first raised portion protruding at one of a flow path forming portion and the fixing portion; a cushion portion; a second raised portion protruding at the valve body portion; and a biasing portion that biases the valve body portion. The first raised portion has an inclined portion inclined relative to a valve closing direction and the second raised portion has an inclined portion inclined relative to the valve closing direction. Both of the inclined portions are contactable with each other at the time of valve closing. 1. A changeover valve that switches an exhaust flow path of an internal combustion engine , the changeover valve comprising:a valve body portion that closes an opening by covering the opening and a periphery of the opening, the opening being formed at a switching position of the exhaust flow path and at one of a flow path forming portion forming the exhaust flow path or a fixing portion fixed to the flow path forming portion;the fixing portion that fixes the valve body portion so that the valve body portion rotates between a position to open the opening and a position to close the opening;a first raised portion raised from one of the flow path forming portion or the fixing portion within an opposing area where one of the flow path forming portion or the fixing portion faces the valve body portion at a time of valve closing when the valve body portion closes the opening;a cushion portion arranged at the periphery of the opening at a position including at least the opposing area;a second raised portion raised from the valve body portion and formed at a position where the second raised portion is arranged to contact the first raised portion at the time of valve closing; anda biasing portion that biases the valve body portion in a valve closing direction in which ...

SOUND CONTROL OF AN ENGINE OR OTHER PRIME MOVER

A system for controlling a sound level of a prime mover permitted to emanate from or within a vehicle includes a global positioning satellite (GPS) receiver operable for receiving a GPS signal and a sound control device. The sound control device is operable for increasing or decreasing a sound level of the prime mover in response to a control signal. A controller in communication with the GPS receiver includes a calendar and clock, and is programmed to execute a method, including receiving the GPS signal via the GPS receiver, and determining an actual location of the vehicle using the GPS signal. The controller also determines an actual date and time of day using the calendar and the clock, respectively, and transmits the control signal to the sound control device to increase or decrease the sound level using at least one of the actual location, date, and time of day. 1. A system for controlling a sound level of a prime mover that is permitted to emanate from or within a vehicle , the system comprising:a global positioning satellite (GPS) receiver operable for receiving a GPS signal;a sound control device positioned with respect to the vehicle, wherein the sound control device is operable for selectively increasing or decreasing the sound level in response to a control signal; anda controller in communication with the GPS receiver, wherein the controller includes a calendar and a clock, and is programmed to receive the GPS signal via the GPS receiver, determine an actual location of the vehicle using the GPS signal, determine an actual date and time of day using the calendar and the clock, respectively, and transmit the control signal to the sound control device to thereby increase or decrease the sound level using at least one of the actual date, time of day, or location.2. The system of claim 1 , wherein the prime mover is an internal combustion engine.3. The system of claim 1 , wherein the controller is programmed to detect a predetermined point of interest a map ...

SYSTEMS AND METHODS FOR REGULATING PERFORMANCE CHARACTERISTICS OF AN EXHAUST SYSTEM WITH A TRI-MODAL VALVE

A system for regulating performance characteristics of a vehicle includes an engine configured to output an exhaust gas. The system further comprises an emissions system in fluid communication with the engine, the emissions system configured to clean the exhaust gas. The system further comprises a valve system in fluid communication with the emissions system, the valve system configured to regulate a flow of the exhaust gas. The valve system comprises a vane movable between a forward open position, a closed position, and a rear open position. The valve system further comprises a biasing member configured to bias the vane in the forward open position. The valve system further comprises a bypass channel configured to provide a bypass flow path for the exhaust gas to control a backpressure on the vane. 1. A system for regulating performance characteristics of a vehicle , the system comprising:an engine configured to output an exhaust gas;an emissions system in fluid communication with the engine, the emissions system configured to clean the exhaust gas; and a vane movable between a forward open position, a closed position, and a rear open position;', 'a biasing member configured to bias the vane in the forward open position; and', 'a bypass channel configured to provide a bypass flow path for the exhaust gas to control a backpressure on the vane., 'a valve system in fluid communication with the emissions system, the valve system configured to regulate a flow of the exhaust gas, the valve system comprising2. The system of claim 1 , wherein:when the vane is in the forward open position, the vehicle is in an idle state;when the vane is in the closed position, the vehicle is in a cruise state; andwhen the vane is in the rear open position, the vehicle is in an acceleration state.3. The system of claim 1 , wherein in the forward open position claim 1 , the vane is configured to provide low restriction of the flow of the exhaust gas as the exhaust gas flows through the valve ...

EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

An exhaust system for an internal combustion engine and having at least an exhaust duct, which originates from the internal combustion engine and has an end part, which ends with an outlet opening, through which exhaust gases are released into the atmosphere. The end part of the exhaust duct has at least one movable wall, which can be moved to different positions to vary the width of the outlet opening. There are provided a motor-driven actuator device, which is configured to move the movable wall and can be electronically controlled, and a control unit, which is configured to vary, by controlling the actuator device, the position of the movable wall depending on a rotation speed of the internal combustion engine and on an engine load of the internal combustion engine.

MOUNTING STRUCTURE OF VARIABLE VALVE FOR DUAL EXHAUST SYSTEM

A mounting structure of a variable valve for a dual exhaust system may include a muffler, at a front end of which is connected a first inlet pipe, and at a rear end of which is connected a first outlet pipe, and a Helmholtz Resonator, at the front end of which is connected a second inlet pipe, and at a rear end of which is connected a second outlet pipe, in which a variable valve which is opened and closed by an Electronic Control Unit (ECU) of a car is disposed on the second outlet pipe connected to the Helmholtz Resonator. 1. A mounting structure of a variable valve for a dual exhaust system comprising:a muffler, at a front end of which is connected a first inlet pipe, and at a rear end of which is connected a first outlet pipe; anda Helmholtz Resonator, at the front end of which is connected a second inlet pipe, and at a rear end of which is connected a second outlet pipe;wherein a variable valve which is opened and closed by an Electronic Control Unit (ECU) of a car is disposed on the second outlet pipe connected to the Helmholtz Resonator.2. The mounting structure of the variable valve for the dual exhaust system of claim 1 , wherein the Helmholtz Resonator is constructed to have relatively small size than the muffler so that the muffler and the Helmholtz Resonator are arranged asymmetrically.3. The mounting structure of the variable valve for the dual exhaust system of claim 1 , wherein the Helmholtz Resonator comprises:a housing, into an inside of which exhaust gas flows and a rear end of which is opened;a first baffle arranged transversely in the housing;a second baffle combined transversely to close the rear end of the housing; anda resonant chamber partitioned by the first baffle and the second baffle.4. The mounting structure of the variable valve for the dual exhaust system of claim 1 , wherein claim 1 , at a time of low load travel of the car claim 1 , the second outlet pipe is closed by the variable valve and the exhaust gas flows in the second inlet ...

SILENCER FOR INTERNAL COMBUSTION ENGINE

A silencer includes conduit with a downstream end portion configured from a tubular member which includes a conduit discharge port extending through a silencer main body and discharges exhaust gas to the outside therethrough. The tubular member includes a resonance communication hole communicating with a resonance chamber and an upstream side communication hole and a downstream side communication hole communicating with a second chamber. A barrier wall serving as a throttle portion for throttling an exhaust path at an intermediate location of the tubular member is provided in the inside of the tubular member and between the upstream side communication hole and the downstream side communication hole. 1. A silencer for an internal combustion engine , said silencer comprising: an outer tube closed at front and rear ends thereof, wherein an exhaust connection tube to which an exhaust pipe extending from an engine side is connected and a discharge pipe for discharging exhaust gas to the outside therethrough are connected to the outer tube, respectively, and', 'a first partition wall and a second partition wall provided in order from an upstream side in the main body such that an inside of the main body is partitioned into a first chamber and a resonance chamber by the first partition wall and is partitioned into the resonance chamber and a second chamber by the second partition wall, and wherein a conduit is supported on the first partition wall and the second partition wall,, 'a main body, said main body including'}wherein the conduit has a downstream end portion configured from a tubular member including a conduit discharge port which extends through the main body and discharges exhaust gas to outside, wherein the tubular member includes a resonance communication hole which communicates with the resonance chamber and an upstream side communication hole and a downstream side communication hole which communicate with the second chamber, andwherein a closing portion which ...

MUFFLER DEVICE INCLUDING CENTRAL COMMON ACTIVE CONTROL VALVE

A muffler assembly including a central common active control valve may include a central body for guiding exhaust gas discharged from an engine to flow in bilateral directions in a branched manner, the central body comprising the active control valve disposed in a flow path of exhaust gas, and a pair of main mufflers, each separately disposed at opposite sides of the central body to exhaust exhaust gas introduced from the central body, in which the flow path and an exhaust path of the exhaust gas may be variable based on opening and closing of the active control valve. 1. A muffler assembly including a central common active control valve , comprising:a central body for guiding exhaust gas discharged from an engine to flow in bilateral directions in a branched manner, the central body comprising the active control valve disposed in a flow path of exhaust gas; anda pair of main mufflers, each separately disposed at opposite sides of the central body to exhaust exhaust gas introduced from the central body,wherein the flow path and an exhaust path of the exhaust gas are variable based on opening and closing of the active control valve.2. The muffler assembly according to claim 1 , wherein the central body further comprises:a branch part connected to the pair of main mufflers through a pair of first insert pipes, the pair of first insert pipes bilaterally expanding; anda branch chamber connected to a rear end of the branch part, the branch chamber connected to the pair of main mufflers through a pair of second insert pipes, the pair of second insert pipes bilaterally extending,wherein the active control valve is disposed between the branch part and the branch chamber.3. The muffler assembly according to claim 2 , whereinthe branch part and the pair of first insert pipes bilaterally extending from the branch part are connected to form a cross shape; andthe branch chamber connected to a front end of the branch part and the pair of second pipes extending from the branch ...

SELECTIVELY TUNABLE EXHAUST NOISE ATTENUATION DEVICE

A selectively tunable exhaust noise attenuation device includes a body having an outer surface and an inner surface that defines an exhaust volume. An inlet is coupled to the body and fluidically connected to the exhaust volume. A first outlet is coupled to the body and fluidically connected to the inlet and selectively fluidically connected to the exhaust volume and a second outlet coupled to the body and fluidically connected to the exhaust volume. A first conduit including a primary exhaust gas flow path directly fluidically connects the inlet and the first outlet. A second conduit includes a first end and a second. The second conduit defines a secondary exhaust gas flow path. A valve is fluidically connected to one of the first and second conduits. The valve is arranged laterally off-set of the primary exhaust gas flow path. 1. A selectively tunable exhaust noise attenuation device comprising:a body including an outer surface and an inner surface that defines an exhaust volume;an inlet coupled to the body and fluidically connected to the exhaust volume;a first outlet coupled to the body and fluidically connected to the inlet and selectively fluidically connected to the exhaust volume and a second outlet coupled to the body and fluidically connected to the exhaust volume;a first conduit including a primary exhaust gas flow path directly fluidically connecting the inlet and the first outlet;a second conduit including a first end fluidically exposed to the exhaust volume, a second end fluidically connected to the second outlet, the second conduit defining a secondary exhaust gas flow path; anda valve fluidically connected to one of the first and second conduits, the valve being arranged laterally off-set of the primary exhaust gas flow path.2. The selectively tunable exhaust noise attenuation device according to claim 1 , further comprising: a branch conduit extending radially outwardly of the first conduit claim 1 , the branch conduit including a cantilevered end ...

VARIABLE VALVE

A variable valve may include a housing having hinge support portions protruding from a first side thereof, and an opening at a second side thereof, a first gate rotatably coupled to the hinge support portions so as to open and close a part of the opening, a first spring mounted on the housing to apply elastic force in a direction in which the first gate is closed, a second gate rotatably coupled to the hinge support portions so as to open and close a remaining part of the opening, and a second spring mounted on the housing to apply elastic force in a direction in which the second gate is closed, in which the first spring and the second spring may have different spring constants. 1. A variable valve comprising:a housing having hinge support portions protruding from a first side thereof, and an opening at a second side thereof;a first gate rotatably coupled to the hinge support portions so as to open and close a part of the opening;a first spring mounted on the housing to apply elastic force in a direction in which the first gate is closed;a second gate rotatably coupled to the hinge support portions so as to open and close a remaining part of the opening; anda second spring mounted on the housing to apply elastic force in a direction in which the second gate is closed,wherein the first spring and the second spring have different spring constants.2. The variable valve of claim 1 , wherein the first spring and the second spring comprise flat springs that are supported by a spring support portion coupled to upper ends of the hinge support portions and have ends configured to press the first gate and the second gate claim 1 , respectively.3. The variable valve of claim 2 , wherein the first gate and the second gate each have a semi-circular shape so that a circular plate shape is formed when both of the first gate and the second gate are closed claim 2 , and a center of the circular plate shape is placed on the first gate so that the first gate has a larger area than the ...

Damper Valve Assembly

A damper valve assembly for an exhaust system of a vehicle includes a valve housing and a valve flap. The valve housing is adapted to be attached to a pipe of the exhaust system and defines an opening. The valve flap is rotatable relative to the valve housing and about a pivot axis between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed. The valve flap includes a body and a mass damper. The mass damper is integral with the body and includes a plurality of segments that are folded so that the plurality of segments are in a stacked arrangement. 1. A damper valve assembly for an exhaust system of a vehicle , the damper valve assembly comprising:a valve housing adapted to be attached to a pipe of the exhaust system and defining an opening; anda valve flap rotatably coupled to the valve housing about a pivot axis, the valve flap movable between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed, the valve flap including a body and a mass damper,wherein the mass damper is integral with the body and includes a plurality of segments that are folded such that the plurality of segments are in a stacked arrangement.2. The damper valve assembly of claim 1 , wherein the mass damper is pressed to a first surface of the body of the valve flap once the plurality of segment are folded.3. The damper valve assembly of claim 2 , further comprising a pad attached to one of a second surface of the body and the valve housing claim 2 , and wherein the pad is sealingly engaged with the valve housing and the valve flap along a periphery of the opening when the valve flap is in the first position.4. The damper valve assembly of claim 1 , wherein the plurality of segments are parallel to each other and to the body of the valve ...

Damper Valve Assembly

A damper valve assembly includes a valve housing, a valve flap and a torsional spring. The valve housing is adapted to be attached to a pipe of an exhaust system and defines an opening. The valve flap is rotatably coupled to the valve housing about a pivot axis. The valve flap is movable between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed. The torsional spring engages the valve flap to bias the valve flap toward the first position. A preload of the torsional spring when the valve flap is in the first position is adjustable. 1. A damper valve assembly for an exhaust system of a vehicle , the damper valve assembly comprising:a valve housing adapted to be attached to a pipe of the exhaust system and defining an opening;a valve flap rotatably coupled to the valve housing about a pivot axis, the valve flap movable between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed; anda spring engaging the valve flap to bias the valve flap toward the first position,wherein a preload of the spring when the valve flap is in the first position is adjustable.2. The damper valve assembly of claim 1 , wherein the valve housing includes a plurality of attachment points and the spring includes an end coupled to one of the plurality of attachment points claim 1 , and wherein the preload of the spring has a magnitude that varies based on which one of the plurality of attachment points the end of the spring is attached.3. The damper valve assembly of claim 1 , wherein the spring includes a first coil claim 1 , a second coil and a connecting member claim 1 , and wherein the connecting member is engaging the valve flap to bias the valve flap toward the first position.4. The damper valve assembly of claim 3 , wherein the ...

METHODS AND SYSTEM FOR DIAGNOSING ACTIVE EXHAUST VALVES BASED ON TEMPERATURE AND THERMAL IMAGE DATA

Methods and systems are provided for diagnosing an active exhaust valve in an exhaust system based on thermal data. In one example, a method may include indicating degradation of a first active exhaust valve positioned in a first exhaust pipe of a first engine bank based on a difference between a first temperature of exhaust downstream of the first active exhaust valve and a second temperature of exhaust downstream of a second active exhaust valve positioned in a second exhaust pipe of a second engine bank. Degradation of the valve may be confirmed based on thermal image data acquired at outlets of the first and second exhaust pipes. 1. A method , comprising:indicating degradation of a first exhaust valve positioned in a first exhaust pipe of a first engine bank based on a difference between a first temperature of exhaust downstream of the first exhaust valve and a second temperature of exhaust downstream of a second exhaust valve positioned in a second exhaust pipe of a second engine bank.2. The method of claim 1 , further comprising adjusting an engine operating parameter in response to indicating degradation of the first exhaust valve.3. The method of claim 1 , wherein the first temperature is measured via a first temperature sensor arranged downstream of the first exhaust valve and the second temperature is measured via a second temperature sensor arranged downstream of the second exhaust valve.4. The method of claim 3 , wherein the indicating degradation includes indicating degradation of the first exhaust valve in response to the difference between the first temperature and the second temperature being greater than a first threshold and a difference between the first temperature and an expected temperature of exhaust downstream of the first exhaust valve being greater than a second threshold.5. The method of claim 4 , wherein the expected temperature of exhaust downstream of the first exhaust valve is determined based on a temperature of exhaust in an exhaust ...

VALVE FOR EXHAUST LINE

A valve comprises a valve body delimiting a passage for exhaust gases, a flap arranged in the valve body, and a drive shaft configured to drive the flap, and which is integrally secured to the flap. At least one guide bearing is configured to guide the drive shaft of the flap in rotation in relation to the valve body, and is connected to the valve body. The valve also includes an actuator and a transmission comprising an adapter rigidly attached directly to the drive shaft of the flap. The transmission is arranged in order to transmit a motor torque between the actuator and the adapter. The adapter has a contact surface that is in sealed contact with a complementary surface provided on the guide bearing. 1. A valve for an exhaust line , the valve comprisinga valve body delimiting a passage for the exhaust gases;a flap arranged in the valve body;a drive shaft configured to drive the flap and being integrally secured to the flap;at least one guide bearing configured to guide the drive shaft of the flap in rotation in relation to the valve body, wherein the at least one guide bearing is connected to the valve body;an actuator;a transmission comprising an adapter rigidly attached directly to the drive shaft of the flap, the transmission being arranged to transmit a motor torque between the actuator and the adapter; andthe adapter having a contact surface that is in sealed contact with a complementary surface provided on the at least one guide bearing.2. A valve according to claim 1 , in which the contact surface is spherical claim 1 , with the complementary surface being conical.3. A valve according to claim 1 , in which the adapter is rigidly attached to one end of the drive shaft for the flap.4. A valve according to claim 1 , in which the adapter is a plate.5. A valve according to claim 1 , in which the adapter includes a convex central zone defining the contact surface and having an orifice through which the drive shaft passes.6. A valve according to claim 5 , in ...

VARIABLE RESTRICTION VALVE FOR VEHICLE EXHAUST SYSTEM

A valve assembly for a vehicle exhaust system includes a rigid mount structure that is configured to be mounted within an exhaust component that defines an exhaust gas passage. The valve assembly further includes a plurality of flexible members that each extend from a first end to a second end. One of the first ends and second ends of the flexible members is fixed to the rigid mount structure and the other of the first ends and second ends is free to move such that the plurality of flexible members creates a variable restriction to flow through the exhaust component that varies in response to a pressure difference upstream and downstream of the plurality of flexible members. 1. A valve assembly for a vehicle exhaust system comprising:a rigid mount structure configured to be mounted within an exhaust component defining an exhaust gas passage; anda plurality of flexible members each extending from a first end to a second end, and wherein one of the first ends and second ends of the flexible members is fixed to the rigid mount structure and the other of the first ends and second ends is free to move such that the plurality of flexible members creates a variable restriction to flow through the exhaust component that varies in response to a pressure difference upstream and downstream of the plurality of flexible members.2. The valve assembly according to claim 1 , wherein at least some of the flexible members partially overlapping each other claim 1 , and wherein the freely movable ends bend from an initial position to increase an open area within the exhaust gas passage in response to increased exhaust gas pressure above a predetermined level claim 1 , and wherein the freely moveable ends return to the initial position when exhaust gas pressure falls below the predetermined level.3. The valve assembly according to claim 2 , wherein claim 2 , when in the initial position claim 2 , the freely movable ends of the plurality of flexible members are spaced apart from each ...

Passive flap valve for vehicle exhaust system

A valve assembly for a vehicle exhaust system includes at least one pipe enclosing an exhaust gas flow path, the pipe defining a central axis, and at least one flexible flap positioned within the exhaust gas flowpath. The at least one flexible flap has one fixed edge held fixed to the pipe and extends to a distal edge that is free to bend in response to an increase in exhaust gas flow pressure to provide a variable restriction to flow through the pipe that varies in response to a pressure difference upstream and downstream of the at least one flexible flap.

METHODS AND SYSTEMS FOR AN ACTIVE EXHAUST VALVE

Methods and systems are provided for opportunistically mitigating an intermittent degradation of an active exhaust valve. In one example, a method may include differentiating between a permanent degradation of the active exhaust valve and an intermittent degradation of the active exhaust valve and adjusting actuation of the valve based on a vehicle operating condition and a road condition to mitigate the intermittent degradation. 1. A method for operating an engine , comprising:in response to detection of an intermittent degradation of an active exhaust valve as determined via a controller, adjusting actuation of the active exhaust valve based on a vehicle operating condition and a road condition via the controller.2. The method of claim 1 , wherein the active exhaust valve is coupled to an exhaust passage downstream of a muffler and an opening of the active exhaust valve is adjusted responsive to inputs to the controller for adjusting audible exhaust sound.3. The method of claim 1 , wherein adjusting actuation of the valve includes sending duty cycling commands to an actuator coupled to the active exhaust valve via the controller responsive to the intermittent degradation.4. The method of claim 3 , wherein the duty cycling commands are sent to the actuator via the controller to gradually change an opening of the valve from a 10% opening to an 80% opening.5. The method of claim 3 , further comprising claim 3 , upon detection of a degradation of the active exhaust valve during monitoring of the active exhaust valve via the controller claim 3 , operating the active exhaust valve for a first time in a healing mode via the controller claim 3 , wherein the healing mode includes sending the duty cycling commands to the actuator one or more times to dislodge contaminant from a body of the active exhaust valve.6. The method of claim 5 , wherein the monitoring of the active exhaust valve includes commanding the active exhaust valve to move from a first position to a second ...

HEAT EXCHANGER FOR EXHAUST TUNING SYSTEM

Methods and systems are provided for a heat exchanger phase change material installed as a component of a variable exhaust tuning system. In one example, a method may include absorbing excess heat energy from exhaust gases during and after an engine-on event within a heat exchanger material, releasing heat energy stored in the heat exchanger material during and after an engine-off event, and heating an adjustable exhaust valve with the heat energy stored in the heat exchanger material. 15-. (canceled)6. A device for preventing ice formation on a post-catalyst variable exhaust tuning system , comprising:an inner heat exchanger layer,an outer heat exchanger layer,a heat exchanger material between the inner and outer heat exchanger layers,at least one temperature sensor, andan adjustable exhaust valve.7. The device of claim 6 , wherein the heat exchanger material is encased by the inner and outer heat exchanger layers.8. The device of claim 6 , wherein the heat exchanger material comprises a wax claim 6 , a salt claim 6 , or a salt hydrate.9. The device of claim 6 , wherein the inner and outer heat exchanger layers are sealed by an upstream seal and a downstream seal claim 6 , thereby containing the heat exchanger material and forming a heat exchanger sleeve.10. The device of claim 9 , further comprising a refill port for exchanging the heat exchanger material.11. The device of claim 6 , wherein a first temperature sensor may be attached to an inner heat exchanger layer.12. The device of claim 6 , wherein a second temperature sensor may be attached to an outer heat exchanger layer.13. The device of claim 6 , wherein the adjustable exhaust valve comprises at least an actuator and a rotational rod.14. The device of claim 6 , wherein the heat exchanger material may absorb thermal energy and store thermal energy during a solid to liquid phase transition or absorb thermal energy and store thermal energy during a liquid to solid phase transition.15. A device for preventing ...

Flapper finger valve assembly

A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherein the flapper finger valves are arranged on an outside surface of the tube. The flapper finger valves are capable of radial movement with respect to the tube. A plurality of retainers generally having a C-shape are arranged around the flapper finger valve. These retainers will define a maximum radial movement for such flapper finger valves on the tube. The flapper finger valve assembly also includes a fastener which will secure the flapper finger valves between a tube and retainers in the flapper finger valve assembly.

Flapper finger valve

A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherein the flapper finger valves are arranged on an outside surface of the tube. The flapper finger valves are capable of radial movement with respect to the tube. A plurality of retainers generally having a C-shape are arranged around the flapper finger valve. These retainers will define a maximum radial movement for such flapper finger valves on the tube. The flapper finger valve assembly also includes a fastener which will secure the flapper finger valves between a tube and retainers in the flapper finger valve assembly.

发动机或其它原动机的声音控制

一种用于控制允许从车辆或车辆内发出的原动机的声级的系统包括可操作用于接收全球定位卫星(GPS)信号的GPS接收器以及声控装置。该声控装置可操作地用于响应于控制信号而增大或降低原动机的声级。与该GPS接收器通信的控制器包括日历和时钟，并且编程为执行一种方法，该方法包括经由GPS接收器接收GPS信号以及使用GPS信号确定车辆的实际位置。该控制器还分别使用日历和时间来确定实际日期和当天的时间，并且将控制信号传输至声控装置以使用实际位置、日期以及当天的时间中的一种增大或降低声级。

dual mode muffler of vehicle

본 발명은 자동차의 듀얼 모드 머플러에 관한 것으로, 엔진 RPM과 연소가스의 배기량에 따라 개도량이 조절되는 밸브수단이 배기가스를 외부로 배출시키도록 하는 배출파이프(13)내에 설치되는 자동차의 듀얼 모드 머플러에 있어서, 상기 밸브수단(30)은 배출파이프(13)의 안쪽면에 서로 이격되면서 고정되도록 설치되는 제1힌지축(311) 및 제2힌지축(331)과 이들의 힌지축(311,331)을 감싸면서 설치되는 제1토션스프링(313) 및 제2토션스프링(333)에 의해 각각 탄력적으로 회전가능하게 설치되는 제1회전삼각플랩(310) 및 제2회전삼각플랩(330)과; 상기 제1,2힌지축(311,331)과 삼각형을 이루도록 배출파이프(13)에 고정설치되는 가이드축(351)과 이 가이드축(351)과 연결되는 압축스프링(353)에 의해 배출파이프(13)의 길이방향으로 탄력적인 직선왕복 이동이 가능하도록 설치되는 직선이동삼각플랩(350)으로 구성되는데; 상기 직선이동삼각플랩(350)은 어느 한쪽의 모서리부가 제1,2삼각플랩(310,330)사이의 공간으로 삽입되면서 양변이 제1,2삼각플랩(310,330)과 서로 접촉을 이루도록 설치되어져, 엔진 RPM의 변화량과 연소가스의 배기량에 따라 개도량이 자동적으로 조절되는 본 발명에 따른 밸브수단(30)이 듀얼 모드 머플러(10)내에 장착되어져, 소음저감과 배압저감이란 배기계의 기능을 어떠한 조건에서도 만족시킬 수가 있게 되고 이로 인해 배기계의 성능이 대폭적으로 향상되도록 된 것이다. The present invention relates to a dual mode muffler of an automobile, wherein the dual mode muffler of the automobile installed in the exhaust pipe 13 allows the valve means whose opening amount is adjusted according to the engine RPM and the exhaust gas exhaust amount to discharge the exhaust gas to the outside. In the valve means 30, the first hinge shaft 311 and the second hinge shaft 331 and their hinge shafts (311, 331) are installed to be fixed to the inner surface of the discharge pipe 13 while being spaced apart from each other A first rotation triangle flap 310 and a second rotation triangle flap 330 which are respectively installed to be rotatable by the first torsion spring 313 and the second torsion spring 333 which are installed while wrapping; The discharge pipe 13 by a guide shaft 351 fixed to the discharge pipe 13 to form a triangle with the first and second hinge shafts 311 and 331 and a compression spring 353 connected to the guide shaft 351. It consists of a straight moving triangular flap 350 is installed to enable a flexible straight reciprocating movement in the longitudinal direction of the; The linear moving triangle flap 350 is installed so that the corners of either side are inserted into the space between the ...

Exhaust silencer for internal combustion engines

A system for reducing the sound level of engine exhaust gases and arranged to be actuated in dependence of one of the physical magnitudes produced by the engine, such as gas pressure, engine temperature and like magnitudes. The system is provided with a baffle means located on the exhaust side of the engine and baffle actuating means disposed between the baffle means and the engine and adapted to adjust the setting of the baffle means in response to variations in said physical magnitude.

Compressor of an exhaust gas turbocharger

Die Erfindung betrifft einen Verdichter (8) eines Abgasturboladers (1), mit einem Verdichterrad (11), das in eine Verdichterrad-Drehrichtung (VR) antreibbar ist; mit einem Verdichtergehäuse (10), in dem das Verdichterrad (11), in Strömungsrichtung der angesaugten Luft gesehen, zwischen einem vorzugsweise rohrförmigen Verdichtereintritt (12) um einen Verdichteraustritt (13) angeordnet ist, und mit einem Schubumluftventil-Zuströmkanal (14, 15), der im Verdichtergehäuse (10) vom Verdichteraustritt (13) zum Verdichtereintritt (12) verläuft, wobei der Zuströmkanal (14, 15) im Wesentlichen in Umfangsrichtung zum Innendurchmesser (Di) des Verdichtereintritts (12) in diesen mündet. The invention relates to a compressor (8) of an exhaust-gas turbocharger (1), having a compressor wheel (11) which can be driven in a compressor-wheel rotational direction (VR); with a compressor housing (10), in which the compressor wheel (11), viewed in the direction of flow of the intake air, is arranged between a preferably tubular compressor inlet (12) around a compressor outlet (13) and with a diverter valve inflow channel (14, 15) in the compressor housing (10) from the compressor outlet (13) to the compressor inlet (12), wherein the inflow channel (14, 15) substantially in the circumferential direction to the inner diameter (Di) of the compressor inlet (12) opens into this.

tuning valve and exhaust system muffler

本发明提供一种调音阀及排气系统消声器，包括阀门本体、第一阀门组件、第二阀门组件，所述阀门本体端面设有第一阀门安装孔，第一阀门组件安装于所述阀门本体，第一阀门组件包括第一转轴、第一阀门和第一弹性件，第一转轴可转动地支撑于阀门本体，第一阀门固连在第一转轴并覆盖所述第一阀门安装孔，第一弹性件连接在第一转轴使所述第一阀门可由开启状态回复到关闭状态；第二阀门组件安装于第一阀门，第二阀门组件包括第二转轴、第二阀门和第二弹性件，第二转轴可转动地支撑于第一阀门，第二阀门固连在第二转轴，第二弹性件连接在第二转轴使第二阀门可由开启状态回复到关闭状态。本发明的调音阀可降低中低转速轰鸣、高转速噪声及低转速、低频轰鸣。

Active silencer for diesel engine

An active silencer for a diesel engine of the present invention comprises: a silencer main body; a cyclone duct installed in the silencer main body; and an exhaust gas inlet for introducing exhaust gas in a tangential direction of the inner circumferential surface of the cyclone duct, wherein the cyclone duct is formed in a conical shape whose sectional area gradually decreases. In addition, the silencer main body is inserted into the cyclone duct so as to be interposed therebetween, so an end portion of the silencer main body and the cyclone duct are spaced apart from each other. Accordingly, a cyclone effect by the cyclone duct is utilized to collect a particulate matter (PM) such as soot, smoke, and the like contained in the exhaust gas.

Exhaust gas control system and method

FIELD: engines and pumps. SUBSTANCE: control system 1 comprises throttle 4 arranged in offgas channel 5 and throttle actuator 6 with control link 7. Offgas pressure control device controls offgas pressure P 1 in channel 5 upstream of offgas throttle 4. For this, control link 7 incorporates control actuator 9 interacting with pressure balance volume 10. Note here that said pressure balance volume 10 is communicated with offgas orifice hole 11. EFFECT: longer life, decreased noise. 28 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 493 382 (13) C2 (51) МПК F01N F01N F02D 1/16 1/18 9/06 (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010138927/06, 20.02.2009 (24) Дата начала отсчета срока действия патента: 20.02.2009 (73) Патентообладатель(и): КНОРР-БРЕМЗЕ ЗЮСТЕМЕ ФЮР НУТЦФАРЦОЙГЕ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 22.02.2008 DE 102008010658.5 (72) Автор(ы): ХЕРГЕС Михаель (DE) (43) Дата публикации заявки: 27.03.2012 Бюл. № 9 2 4 9 3 3 8 2 (45) Опубликовано: 20.09.2013 Бюл. № 26 2 4 9 3 3 8 2 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.09.2010 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: WO 0133049 A1, 10.05.2001. RU 96114107 A, 20.10.1998. SU 1815376 A1, 15.05.1993. DE 4416739 A1, 16.11.1995. DE 4118712 C1, 10.12.1992. WO 9925962 A1, 27.05.1999. DE 1808949 U, 31.03.1960. US 4750459 A, 14.06.1988. (86) Заявка PCT: EP 2009/001254 (20.02.2009) (87) Публикация заявки РСТ: WO 2009/103561 (27.08.2009) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СИСТЕМА РЕГУЛИРОВАНИЯ ОТРАБОТАВШЕГО ГАЗА И СПОСОБ РЕГУЛИРОВАНИЯ ОТРАБОТАВШЕГО ГАЗА регулирует давление (P1) отработавшего газа, создающееся в канале (5) для отработавшего газа выше по течению дроссельного клапана (4) для отработавшего газа. Для этого тяга (7) управления имеет регулирующий исполнительный орган (9), который взаимодействует с объемом ( ...

Variable exhaust pipe system of automobile

Control valve for an exhaust system and exhaust system with such a control valve

Steuerventil (10) für eine Auspuffanlage eines Motorfahrzeugs, insbesondere eines Motorrads, mit einem Ventilgehäuse (11), in dem ein Absperrkörper (12) zur Querschnittsänderung eines Strömungskanals (21) der Auspuffanlage beweglich angeordnet ist, wobei zwischen dem Absperrkörper (12) und dem Ventilgehäuse (11) ein Ausdehnungsspiel in radialer und axialer Richtung vorgesehen ist, welches eine thermische Ausdehnung des Absperrkörpers (12) innerhalb des Ventilgehäuses (11) erlaubt, wobei der Absperrkörper (12) eine durchbohrte Kugel (12a) aufweist, dadurch gekennzeichnet, dass das Ventilgehäuse (11) wenigstens einen Bypasskanal (18) aufweist. Control valve (10) for an exhaust system of a motor vehicle, in particular a motorcycle, with a valve body (11) in which a shut-off body (12) for changing the cross-section of a flow channel (21) of the exhaust system is movably disposed between the shut-off (12) and the Valve housing (11) is provided an expansion clearance in the radial and axial directions, which allows thermal expansion of the shut-off (12) within the valve housing (11), wherein the shut-off (12) has a pierced ball (12a), characterized in that the Valve housing (11) has at least one bypass channel (18).

Device for THC reducing of exhaust gas in CNG-diesel dual fuel engine system

The present invention relates to a technology to satisfy exhaust emission criteria. According to the present invention, an apparatus to reduce total hydrocarbon of exhaust gas in a compressed natural gas (CNG)-diesel dual fuel engine system comprises: an engine; an exhaust valve; an methane oxidation catalyst (MOC); a first temperature sensor to measure the temperature of exhaust gas supplied from the engine; a second temperature sensor to measure the temperature of exhaust gas flowing to the MOC; and an exhaust valve control unit.

Muffler having changeable valve device

본 발명의 목적은 운전 조건에 따라 배기가스의 유동 경로를 변화시킴과 함께 가변밸브의 개폐 방식을 간접 방식으로 바꾸어 배압 감소를 줄이며, 밸브의 진동과 소음을 줄일 수 있는 구조의 배기가스 유동 제어를 위한 가변밸브 장치를 구비하는 머플러를 제공하는데 있다. An object of the present invention is to change the flow path of the exhaust gas in accordance with the operating conditions, and to change the opening and closing method of the variable valve indirectly to reduce the back pressure reduction, and to control the exhaust gas flow control of the structure that can reduce the vibration and noise of the valve To provide a muffler having a variable valve device for. 이를 위해 본 발명은 배기가스를 확산시켜 압력과 소음을 감소하는 원통과, 그 원통내로 배기가스의 도입을 안내하는 배기가스 도입파이프와, 상기 배기가스 도입 파이프를 통해 도입된 배기가스의 흐름 방향을 전환하도록 설치되는 배기가스 유동 전환파이프와, 상기 유동전환파이프를 통과한 배기가스의 유동 방향을 다시 바꾸어 테일파이프측으로 배출하도록 안내하는 배기가스 배출파이프 및 상기 원통내부를 복수개의 방으로 구획하며, 상기 각 파이프들을 지지하게 되는 복수개의 격벽을 포함하는 머플러에 있어서, 상기 배기가스 도입 파이프에는 엔진의 고속 운전시 상기 원통의 최전방의 방으로 배기가스의 일부를 도입하는 고속 영역용 배기 통로가 형성되어 있는 것을 특징으로 한다. To this end, the present invention provides a cylinder for diffusing the exhaust gas to reduce pressure and noise, an exhaust gas introduction pipe for guiding the introduction of the exhaust gas into the cylinder, and a flow direction of the exhaust gas introduced through the exhaust gas introduction pipe. An exhaust gas flow diversion pipe installed to switch, an exhaust gas discharge pipe for guiding the exhaust gas passing through the flow diversion pipe to be discharged to the tail pipe side again, and partitioning the cylinder into a plurality of rooms; A muffler including a plurality of partition walls supporting each pipe, wherein the exhaust gas introduction pipe is formed with an exhaust passage for a high speed region for introducing a part of the exhaust gas into the frontmost chamber of the cylinder during high speed operation of the engine. It is characterized by.

Exhaust system for vehicle

본 발명은, 배기가스의 유동 시 소음을 저감시키도록 배기파이프에 연결되는 차량용 배기장치로써, 배기가스가 일단에 형성된 유입구를 통해 유입되고 타단에 형성된 배출구를 통해 배출되도록 배기파이프에 연결되며, 상기 유입구와 배출구 사이에서 내경이 확장된 공명챔버가 형성된 주파이프;와 상기 주파이프에 장착되어 주파이프로 유입된 배기가스의 유동을 허용 또는 차단하도록 개폐가 이뤄지는 밸브; 및 상기 밸브가 닫혔을 때 배기가스가 우회하여 주파이프의 배출구로 유동하도록 일단은 주파이프의 유입구측과 개통되고 타단은 주파이프의 배출구측과 개통된 분기파이프;를 포함하는 것을 특징으로 한다. 전술한 바와 같은 구성을 갖는 본 발명은 배기파이프에 직접적으로 연결되는 구조를 가지므로 머플러 각각에서 배기가스의 유동량을 제어하는 종래 구조와 대비하여 생산원가를 낮출 수 있으며, 머플러 하우징의 크기를 더 증대시킬 수 있다. The present invention is an exhaust device for a vehicle connected to an exhaust pipe to reduce noise when the exhaust gas flows, and is connected to the exhaust pipe so that exhaust gas is introduced through an inlet formed at one end and discharged through an outlet formed at the other end, A main pipe having a resonance chamber with an enlarged inner diameter between the inlet and outlet; and a valve mounted on the main pipe to allow or block the flow of exhaust gas introduced into the main pipe; and a branch pipe having one end open with the inlet side of the main pipe and the other end with the outlet side of the main pipe so that the exhaust gas bypasses and flows to the outlet of the main pipe when the valve is closed. Since the present invention having the above-described configuration has a structure directly connected to the exhaust pipe, the production cost can be lowered compared to the conventional structure in which the flow amount of exhaust gas is controlled in each muffler, and the size of the muffler housing is further increased can do it

Changeable valve apparatus for muffler

본 발명의 목적은 엔진의 저속운전시에는 저주파 배기부밍소음을 저감토록 배기가스의 배출단면적을 축소시키며, 엔진의 고속운전시에는 배압의 손실없이 배기가스 배출 단면적을 최대로 할 수 있어 엔진출력 저하를 방지할 수 있는 머플러용 가변밸브장치를 제공하는데 있다. An object of the present invention is to reduce the exhaust cross-sectional area of the exhaust gas to reduce low-frequency exhaust booming noise during low speed operation of the engine, and to maximize the exhaust gas discharge cross-sectional area without losing the back pressure during high-speed operation of the engine, thereby reducing the engine output To provide a variable valve device for a muffler that can prevent. 이를위해 본 발명은 엔진의 운전조건에 따라 배기가스의 배출유로 단면적을 조절하도록 머플러의 배기가스 방향전환파이프에 힌지축을 중심점으로 회동작동하도록 설치되는 판상밸브와; To this end, the present invention includes a plate valve which is installed to rotate the pivot axis around the hinge axis in the exhaust gas direction change pipe of the muffler to adjust the cross-sectional area of the exhaust gas flow path according to the operating conditions of the engine; 배기가스압에 대향하여 상기 판상밸브가 배기가스 방향전환파이프를 차단하는 방향으로 힘을 가하도록 상기 힌지축에 설치되는 토션스프링과; A torsion spring installed on the hinge shaft such that the plate valve exerts a force in a direction of blocking the exhaust gas diverting pipe against the exhaust gas pressure; 상기 힌지축을 중심하여 판상밸브와 대향되는 후방으로 판상밸브로부터 연장된 가동편과; A movable piece extending from the plate valve to the rear opposite the plate valve about the hinge axis; 상기 배기가스방향 전환파이프로부터 상기 가동편보다 더 후방으로 연장되는 고정편과; A fixed piece extending further from said exhaust gas direction conversion pipe than said movable piece; 상기 가동편과 고정편에 양단부가 각각 가동힌지와 고정힌지에 의해 구속되며, Both ends of the movable piece and the fixed piece are respectively restrained by the movable hinge and the fixed hinge, 상기 판상밸브가 열리게 될 때 탄성력을 축적하는 옷핀형상의 턴오버 스프링; 으로 구성되며, A clothespin-shaped turnover spring that accumulates elastic force when the plate valve is opened; It consists of 상기 가동힌지는 상기 판상밸브가 닫혀있는 상태에서는 상기 고정힌지와 힌지축을 연결하는 축선(한계라인)의 상부측에 위치하고 있는 것을 특징으로 한다. The movable hinge is located on an upper side of an axis line ( ...

Silencer of air noise for pneumatic systems

FIELD: machine engineering. SUBSTANCE: silencer comprises a cylindrical body with a cavity made of porous material and connecting fittings connected thereto. The body is made with a through hole. The free end of the body is movably fitted with a sealed cover in the form of a cup. The cover is seated for gradual moving outward along the body within its height, in the course of mud accumulation in the body from the pneumatic system working medium or return to its initial position on the cylindrical body, thereby after cleaning the porous material of the body from the mud accumulated therein. At that, an additional weight suspended from flexible coupling is attached to cover bottom or connected by a flexible link which is thrown over a block fixed on the cylindrical body. EFFECT: increased service life. 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 642 878 C1 (51) МПК F01N 1/16 (2006.01) G10K 11/00 (2006.01) F16L 55/033 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01N 1/165 (2017.08); G10K 11/004 (2017.08); F16L 55/0335 (2017.08) (21)(22) Заявка: 2017110202, 27.03.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 27.03.2017 (56) Список документов, цитированных в отчете о поиске: RU 2514817 C1, 10.05.2014. RU (45) Опубликовано: 29.01.2018 Бюл. № 4 (54) ГЛУШИТЕЛЬ ВОЗДУШНОГО ШУМА ПНЕВМАТИЧЕСКИХ СИСТЕМ (57) Реферат: Изобретение относится к средствам снижения грязи из рабочей среды пневматической системы, шума выхлопа пневматических систем. Глушитель или возврата к своему начальному положению содержит корпус цилиндрической формы с на цилиндрическом корпусе, соответственно полостью, выполненный из пористого материала, после очистки пористого материала корпуса от и связанную с ним присоединительную арматуру. накопившейся в нем грязи. Причем к днищу Корпус выполнен со сквозным отверстием. На крышки присоединен добавочный груз, свободный конец корпуса ...

Valve device for exhaust gas flow path

一种阀装置，其具有被支架支撑为能够分别以第1旋转轴线和第2旋转轴线为中心旋转移动的蝶形部件和第1连杆部件，被蝶形部件支撑为能够以第3旋转轴线为中心旋转移动的第2连杆部件，以及用于朝向闭阀方向对蝶形部件进行施力的弹簧。第1连杆部件以及第2连杆部件互相连接为能够以第4旋转轴线为中心旋转移动。而且，由连接第2旋转轴线和第4旋转轴线的第1连线与连接第3旋转轴线和第4旋转轴线的第2连线所形成的角度在蝶形部件的闭阀状态下形成为最大。

Door opening and closing type muffler using a rack and pinion

본 발명은 랙과 피니언을 이용한 도어 개폐형 머플러에 관한 것으로, 배기가스량에 비례하여 랙 도어와 피니온 밸브가 개구되도록 구성함으로써, 차속에 상응하여 배기가스의 배출량을 최적의 상태에서 조절할 수 있는 랙과 피니언을 이용한 도어 개폐형 머플러를 제공하는데 있다. The present invention relates to a door open-type muffler using a rack and pinion, and the rack door and pinion valve are configured to be opened in proportion to the amount of exhaust gas, thereby providing a rack capable of controlling exhaust gas in an optimal state corresponding to the vehicle speed. It is to provide a door openable muffler using a pinion. 이를 실현하기 위한 본 발명은, 연통가능한 상하 챔버에 각각 단차지게 흡입구와 배기구를 갖는 몸체와, 상기 챔버 사이에 회전가능하도록 장착되어 상기 흡입구를 개폐시켜 주는 피니온 밸브와, 이 피니온 밸브와 연동하여 상하 챔버 사이의 절부 부분을 개폐시켜 주는 랙 도어와, 배기가스의 양에 비례하여 상기 피니온 밸브를 구동시켜 주는 구동수단을 포함하여 이루어진 것을 특징으로 한다. The present invention for realizing this, a body having a suction port and an exhaust port stepped in each of the upper and lower chambers, and a pinion valve rotatably mounted between the chamber to open and close the suction port, and interlocked with the pinion valve It characterized in that it comprises a rack door for opening and closing the section between the upper and lower chambers, and a driving means for driving the pinion valve in proportion to the amount of exhaust gas.

DEVICE FOR FILLING AN EXHAUST GAS PIPE

L'invention concerne un dispositif d'obturation (6) d'un conduit (1) que comporte une ligne d'échappement de moteur à combustion interne et qui, d'une part, délimite un passage (5) des gaz d'échappement, et qui, d'autre part, s'étend au moins en partie et débouche à l'intérieur du boîtier (3) d'un silencieux (2) délimité par une enveloppe (4), le dispositif d'obturation (6) comportant, d'une part, un clapet (7) disposé à l'intérieur dudit boîtier (3) et monté en mouvement par rapport au conduit (1), ceci entre au moins une première position d'obturation du passage (5) des gaz et une seconde position d'ouverture de ce passage (5) et, d'autre part, des moyens de rappel (8) du clapet (7) en position d'obturation du passage (5) des gaz.Ce dispositif d'obturation est caractérisé par le fait qu'il comporte des moyens (10) conçus aptes à raccorder le clapet (7) aux moyens de rappels (8) implantés extérieurement au boîtier (2) du silencieux (2), les moyens de raccordement (10) étant solidaires en mouvement du clapet (7) et traversant l'enveloppe (4) du boîtier (3). The invention relates to a closure device (6) for a duct (1) which comprises an exhaust line of an internal combustion engine and which, firstly, delimits a passage (5) of the exhaust gas , and which, on the other hand, extends at least partially and opens into the housing (3) of a silencer (2) delimited by an envelope (4), the closure device (6) comprising, on the one hand, a valve (7) disposed inside said casing (3) and mounted in movement relative to the duct (1), this enters at least a first closed position of the passage (5) of the gas and a second open position of this passage (5) and, secondly, return means (8) of the valve (7) in the closed position of the passage (5) of the gases.Ce device shutter is characterized in that it comprises means (10) designed adapted to connect the valve (7) to the means of reminders (8) implanted ...

METHOD AND DEVICE FOR REGULATING AND SOUNDPROOFING AN AIR FLOW.

DEVICE FOR SHUTTING A CONDUIT OF AN EXHAUST LINE

Silencers for explosion engines

EXHAUST GAS CONTROL DEVICE FOR A TWO-STROKE ENGINE

Improvements to the exhaust silencers of internal combustion engines

MUFFLER FOR PNEUMATIC INSTALLATIONS

UN SILENCIEUX POUR INSTALLATIONS PNEUMATIQUES COMPORTE UN BOITIER CYLINDRIQUE10 MUNI DE LUMIERES D'ECHAPPEMENT16, DERRIERE LESQUELLES SE TROUVE UNE GARNITURE INTERIEURE18 EN FORME DE CYLINDRE CREUX, FAITE D'UN MATERIAU POREUX. A L'INTERIEUR DE CETTE GARNITURE EST MONTE AXIALEMENT DEPLACABLE, UN CORPS ETRANGLEUR28, DONT LA TETE32 EST GUIDEE PAR L'INTERMEDIAIRE DE SAILLIES RADIALES34 SUR LA FACE INTERNE D'UNE BAGUE D'APPUI20, SUR LAQUELLE REPOSE LA GARNITURE. UNE ZONE CONIQUE38 DE LA TETE32 DEFINIT ENTRE ELLE ET UN FRAISAGE CONIQUE42, A L'EXTREMITE INTERIEURE DE L'ALESAGE14 DE LA TUBULURE DE RACCORDEMENT12 DU SILENCIEUX, UN PASSAGE ETRANGLE DE SECTION VARIABLE44. A MUFFLER FOR PNEUMATIC SYSTEMS CONSISTS OF A CYLINDRICAL10 CASE WITH EXHAUST LIGHTS16, BEHIND WHICH IS AN INTERNAL TRIM18 IN THE FORM OF A HOLLOW CYLINDER, MADE OF A POROUS MATERIAL. INSIDE THIS GASKET IS MOUNTED AXIALLY MOVABLE, A THROTTLE BODY28, THE HEAD32 OF WHICH IS GUIDED BY THE INTERMEDIATE OF RADIAL PROJECTS34 ON THE INTERNAL FACE OF A SUPPORT RING20, ON WHICH THE GASKET RESTS. A CONICAL ZONE38 OF THE HEAD32 DEFINED BETWEEN IT AND A CONICAL MILLING42, AT THE INSIDE END OF THE BALEAGE14 OF THE SILENCER'S CONNECTION TUBING12, A THROUGH WITH VARIABLE SECTION44.

Silencer for internal combustion engine

Aerosol particles removal device used eg for cigarette smoke - engine exhausts etc

Device is mounted in a duct, and consist of a cylindrical upstream body, with through bores for smoke flow, and a cylindrical downstream body with disc-like configuration, which is mounted close to the recessed rear face of the upstream body and defines a circular slot between them, through which the aerosol flows radially.

Improvements to exhaust pipes for explosive engines

Method and device for regulating and soundproofing an air flow.

L'invention concerne un procédé et un dispositif de régulation et d'insonorisation d'un écoulement d'air. L'air passe dans un canal d'écoulement (14) d'un dispositif de régulation (10), qui comprend une structure de paroi (15, 16) limitant le canal d'écoulement (14), laquelle structure de paroi peut être déplacée en direction de l'axe central (X) du canal (14). La structure de paroi (15, 16) est disposée dans le dispositif (10) au voisinage d'une chambre d'insonorisation (20a, 20b), ce qui fait que par le déplacement des structures de paroi (15 et/ou 16) qui délimitent le canal (14) en direction de l'axe (X) du canal d'écoulement, l'aire en section du canal d'écoulement (14) est réduite et l'effet d'insonorisation du dispositif et la résistance à l'écoulement de l'air sont augmentés.

Exhaust system spring with torsional damping

적응형 밸브 조립체는, 엔진 배기 가스를 전달하기 위한 통로를 한정하는 파이프, 파이프에 의해 지지되는 선회 샤프트, 및 선회 샤프트에 결합되는 밸브 몸체를 포함한다. 밸브 몸체는, 통로를 통한 배기 가스 유동이 증가하게 되는 개방 위치 및 통로를 통한 배기 가스 유동이 감소하게 되는 폐쇄 위치 사이에서 이동 가능하다. 스프링이 폐쇄 위치를 향해 밸브 몸체를 편향시킨다. 스프링은, 밸브 몸체가 개방 위치와 폐쇄 위치 사이에서 이동할 때 서로에 대한 비틀림 변위를 구비하는, 복수의 코일을 포함한다. 비틀림 댐퍼 특징부가, 비틀림 스프링 댐핑을 제공하기 위해 복수의 코일 중 적어도 하나와 연관된다. The adaptive valve assembly includes a pipe defining a passageway for delivering engine exhaust, a pivot shaft supported by the pipe, and a valve body coupled to the pivot shaft. The valve body is movable between an open position where exhaust gas flow through the passageway increases and a closed position where the exhaust gas flow through the passageway is reduced. The spring deflects the valve body towards the closed position. The spring includes a plurality of coils having a torsional displacement relative to each other as the valve body moves between an open position and a closed position. A torsional damper feature is associated with at least one of the plurality of coils to provide torsional spring damping.

DEVICE FOR SHUTTING A CONDUIT OF AN EXHAUST LINE

L'invention concerne un dispositif (3) d'obturation de l'extrémité (4) d'un conduit (1) que comporte une ligne d'échappement de moteur à combustion interne et qui délimite un passage des gaz d'échappement, ce dispositif (3) comportant, d'une part, un clapet (5) associé à des moyens (6) de montage en pivotement autorisant un pivotement de ce clapet (5) entre une position d'obturation et au moins une position d'ouverture du conduit (1) et, d'autre part, des moyens (11) de rappel dudit clapet (5) en position d'obturation de ce conduit (1).Ce dispositif (3) est caractérisé par le fait qu'il comporte des moyens (13) agencés pour, au moins en position d'ouverture du conduit (1), dévier le flux des gaz d'échappement provenant de ce conduit (1), ceci par rapport aux moyens de rappel (11) et de manière à éviter que les gaz atteignent ces derniers (11). The invention relates to a device (3) for closing the end (4) of a duct (1) which comprises an exhaust line of an internal combustion engine and which delimits an exhaust gas passage. device (3) comprising, on the one hand, a valve (5) associated with means (6) for pivoting mounting allowing a pivoting of this valve (5) between a closed position and at least one open position duct (1) and, secondly, means (11) for returning said valve (5) in the closed position of this duct (1) .This device (3) is characterized by the fact that it comprises means (13) arranged for, at least in the open position of the duct (1), diverting the flow of the exhaust gases from this duct (1), this with respect to the return means (11) and so to prevent the gases from reaching the latter (11).

Silencer for vehicles, has facility with variable attenuation characteristic for pulsating gases

An actuation box actuates the closing element (12) at the end of the piston rod (10), which features a negative pressure port (9) in addition to an over-pressure port. This feature enables to lead a negative pressure to the negative pressure side of the membrane (6). This negative pressure allows a controlled opening of the valve. The result is a good acoustic attenuation in the lower speed range as well as a minimized counter-pressure in the higher speed range.

Silencer for internal combustion engines with a pressure equalization chamber and with an automatically adjustable outlet device under spring pressure

Patent FR2131455A5

Muffler for two-cycle engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Exhaust accessory unit for internal combustion engines

An engine exhaust accessory unit comprises a tubular housing adapted to be fitted over the end of an exhaust header. The outer end of the tubular housing is partially obstructed by a pivotable rigid perforated plate. The plate is pivotally mounted about a transverse axis offset below the central longitudinal axis of the housing. The larger upper section of the plate causes it to swing outward in response to passage of exhaust gases through the housing. The perforated plate automatically modifies engine noises and varies exhaust back pressure as a function of its angular position about the transverse axis. A yieldable spring biases the plate to a perpendicular position across the housing, and resists pivotal movement of the butterfly plate in response to passage of exhaust gases. Stops in the path of movement of the plate limit its movement between a perpendicular position across the housing and a position parallel to the longitudinal central housing axis.

Marine exhaust silencer

There is provided an exhaust silencer having an axial inlet opening and an axial outlet opening spaced axially from the inlet opening comprising a cylindrical shell, a number of rib members with openings securely positioned within said shell with rods, and perforated tube members and noise damping members. wherein the rib members are longitudinally equi-distancely spaced apart and the perforated tube member nearest the outlet opening is tapered.

Noise generating apparatus for vehicle has acoustic device having flap based on whose position different noise is generated

An acoustic device (3) is connected to a siphon (2). The acoustic device includes a hollow body (31) within which a position-variable flap is arranged. The noise generation in the vehicle changes depending on the position of the flap.

Exhaust controlling device for internal combustion engine

Disclosed is a reverse control exhaust apparatus of an internal combustion engine. The present invention is inserted into and coupled to a tailpipe through which combustion gas of the internal combustion engine is discharged for the final such that external air is prevented from being introduced into an exhaust system by a pressure difference after discharge of the combustion gas so as to reduce an exhaust resistance. By increasing a discharge speed of the exhaust gas by controlling the counterflow of external air, combustion efficiency can be improved, an output can be increased, fuel efficiency can be improved, and exhaust gas can be reduced. In addition, the reverse control exhaust apparatus can be used by being coupled to the tailpipe without additionally modifying an engine and the tailpipe.

Snap-action valve for exhaust system

A passive, exhaust pressure actuated valve assembly for placement inside a tubular exhaust conduit is pivotally mounted to an off-center axle for rotation between fully closed and fully opened positions. A bias element forces the valve flap toward the fully closed position. The valve flap is shaped in a manner enabling use of the interior surface of the exhaust conduit to define stops at the full closed and full opened positions. The valve flap shape, in conjunction with the bias element arrangement, enables the flap to lie substantially parallel to a longitudinal axis of the conduit in the fully opened position, which provides for minimum back pressure in the conduit. The valve assembly finds particularly advantageous use inside a bypass through pipe of a muffler assembly.

Exhaust valve with resilient spring pad

An exhaust pressure actuated valve assembly for placement inside a tubular exhaust conduit includes a valve plate rotatable between open and closed positions. An axle is adapted to pivotally couple the valve plate to the exhaust conduit about a longitudinal axis of the axle. The axle axis is adapted to extend in a direction substantially perpendicular to a direction of exhaust flow through the conduit. A cantilevered spring pad has a first portion coupled to the valve plate and a second portion spaced apart from the valve plate. The second portion is oriented to contact an inner surface of the conduit as the valve plate moves toward the closed position to dampen vibration.

VALVE DEVICE FOR DUMPING THE WASTE SOIL FROM A PRESSURE-DRIVE ENGINE

VALVE FOR AN EXHAUST LINE

Cette vanne comprend un corps de vanne (3) délimitant un passage (4) pour les gaz d'échappement, un volet (5) disposé dans le corps de vanne (3), un arbre (7) d'entraînement du volet (5), solidaire du volet (5), au moins un palier (9) de guidage en rotation de l'arbre d'entraînement (7) du volet (5) par rapport au corps de vanne (3), lié au corps de vanne (3), un actionneur (11), et une transmission (13) comprenant un adaptateur (15) rigidement fixé directement à l'arbre d'entraînement (7) du volet (5), la transmission (13) étant agencée pour transmettre un couple moteur entre l'actionneur (11) et l'adaptateur (15). L'adaptateur (15) présente une surface de contact en contact étanche avec une surface complémentaire ménagée sur le palier de guidage (9).