METHOD FOR OPERATING A COMBUSTION ENGINE AND COMBUSTION ENGINE FOR CARRYING OUT THE METHOD

In a method for operating a combustion engine in which exhaust gas located in a cylinder during an outlet cycle thereof is ejected from the cylinder and supplied to an exhaust system, a particularly high specific power output of the combustion engine and/or a particularly low specific fuel consumption are to be made possible, in a particularly simple and reliable manner. For this purpose, according to the invention, in a first cycle phase of the outlet cycle the pulse of the exhaust gas pressure wave flowing out of the cylinder is transmitted in whole or in part to the primary side of an exhaust gas charge pump, before the exhaust gas is passed to the exhaust system in a second cycle phase of the outlet cycle. 112. Method for operating a combustion engine in which exhaust gas located under pressure in a cylinder during an outlet cycle thereof is ejected from the cylinder and supplied to an exhaust system , wherein in a first cycle phase of the outlet cycle the pulse of the exhaust gas pressure wave flowing out of the cylinder is transmitted in whole or in part to the primary side of an exhaust gas charge pump , before the exhaust gas is passed to the exhaust system () in a second cycle phase of the outlet cycle.2. Method according to claim 1 , in which during the second phase of the outlet cycle the exhaust gas is supplied to the exhaust system whilst bypassing the exhaust gas charge pump.3. Method according to claim 1 , in which in the first cycle phase of the outlet cycle the pulse of the exhaust gas pressure wave flowing out of the cylinder is transmitted in whole or in part to a gas cushion located in and/or upstream from the primary side of the exhaust gas charge pump claim 1 , in such a way that it can subsequently be decompressed again to provide power in the exhaust gas charge pump.4. Method according to claim 1 , in which the enthalpy of the exhaust gas claim 1 , converted into expansion work in the exhaust gas charge pump on the primary side claim 1 , is ...

MEMBRANE PUMP, IN PARTICULAR FOR USE IN THE EXHAUST GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE COMPRISING A MEMBRANE PUMP

A membrane pump (″), in particular for use in the exhaust gas tract of a combustion engine (), comprising a pressure housing (), the internal volume () of which is subdivided by a number of resiliently deformable membranes () into a plurality of sub-volumes () separated from one another on the gas side, wherein a biasing force is applied to the or each membrane () in such a way that in the pressure-free state the sub-volume () forming the primary side has a minimum value in relation to the deformability of the or each membrane (), is to act so as particularly to increase effectiveness during use in the exhaust system of a combustion engine (). For this purpose, according to the invention, a leaf spring () is provided as a restoring spring for applying the biasing force to the membrane (). 119070246810686366. Membrane pump () , in particular for use in the exhaust gas tract () of a combustion engine () , comprising a pressure housing () , the internal volume () of which is subdivided by a number of resiliently deformable membranes () into a plurality of sub-volumes ( , ) separated from one another on the gas side , wherein a biasing force is applied to the or each membrane () in such a way that in the pressure-free state the sub-volume () forming the primary side has a minimum value in relation to the deformability of the or each membrane () , and wherein a leaf spring () is provided as a restoring spring for applying the biasing force to the membrane ().213668. Membrane pump () according to claim 1 , of which the leaf spring () provided for applying the biasing force to the membrane () is arranged in the sub-volume () forming the primary side.31366. Membrane pump () according to either or claim 1 , of which the leaf spring () is connected to the membrane () centrally.4136238. Membrane pump () according to any of to claim 1 , of which the leaf spring () is braced movably on the pressure housing () at the free spring ends () thereof.5136. Membrane pump () according to ...

switching valve

Die vorliegende Erfindung betrifft ein Schaltventil (1), insbesondere für eine Frischgasanlage einer Brennkraftmaschine, mit einer Klappe (2) zum Schließen und Öffnen eines durchströmbaren Querschnitts eines Kanals (5), die an einem einen Abschnitt des Kanals (5) enthaltenden Gehäuse (3) um eine Schwenkachse (54) verstellbar angeordnet ist und die eine kreisförmige Außenkontur (7) aufweist mit einem Dichtring (6), der in das Gehäuse (3) eingesetzt ist und der mit seiner Innenkontur (8) in der Schließstellung der Klappe (2) mit der Außenkontur (7) der Klappe (2) zur Aubildung eines Drosseldichtspalts (9) zusammenwirkt. Um das Schaltventil (1) besser justieren zu können, ist entweder die Innenkontur (8) des Dichtrings (6) oder die Außenkontur (7) der Klappe (2) konisch ausgestaltet. The present invention relates to a switching valve (1), in particular for a fresh gas system of an internal combustion engine, having a flap (2) for closing and opening a flow-through cross section of a channel (5) which is connected to a housing (3) containing a section of the channel (5) ) is arranged adjustable about a pivot axis (54) and which has a circular outer contour (7) with a sealing ring (6) which is inserted into the housing (3) and with its inner contour (8) in the closed position of the flap (2 ) cooperates with the outer contour (7) of the flap (2) for the formation of a throttle sealing gap (9). In order to better adjust the switching valve (1), either the inner contour (8) of the sealing ring (6) or the outer contour (7) of the flap (2) is designed conical.

Throttle valve provided with torsion spring

The gas-conveying rotary valve (30) has a torsion spring (5) formed as an energy storage. An end of the torsion spring is movable at a valve steering body (17) around a rotational axis (1). The valve steering body has a valve closing organ (6) and a shaft (7). The other end of the torsion spring is fixed at a place of the rotary valve. The torsion spring is curved such that the torsion spring holds one or multiple torsion axes (2,3,4). The torsion spring has an axially parallel component and an axially perpendicular component.

Gas-conducting rotary valve with torsion spring

The invention relates to a gas-conducting rotary valve (30) having a torsion spring (5) as an energy store, wherein one end (15) of the torsion spring (5) is fastened to a valve control body (17) which can move about a rotational axis (1) and which has a valve closing member (6) and a shaft (7), and the other end (14) of the torsion spring (5) is fastened at a location of the rotary valve (30) which permits a deformation of the spring (5) as the valve control body (17) moves. According to the invention, the torsion spring (5) is curved in such a way as to have one or more torsional axes (2, 3, 4) which have at least in each case one component axially parallel and at least one component axially perpendicular to the rotational axis (1) of the valve control body (17).

Throttle slit seal for valves

Rotary slide device for a piston engine

Combustion engine

Bei einem Verfahren zum Betreiben eines Verbrennungsmotors (1, 1', 1", 1'''), bei dem während eines Auslasstakts eines Zylinders (2) darin befindliches Abgas aus dem Zylinder (2) ab- und einer Auspuffanlage (12) zugeführt wird, soll auf besonders einfache und zuverlässige Weise eine besonders hohe spezifische Leistungsausbeute des Verbrennungsmotors (1, 1', 1", 1''') und/oder ein besonders gering gehaltener spezifischer Brennstoffverbrauch ermöglicht werden. Dazu wird erfindungsgemäß in einer ersten Taktphase des Auslasstakts der Impuls der aus dem Zylinder (2) abströmenden Abgasdruckwelle ganz oder teilweise auf die Primärseite einer Abgasladepumpe (30, 30',30") übertragen, bevor in einer zweiten Taktphase des Auslasstakts das Abgas zur Auspuffanlage (12) geleitet wird. In a method for operating an internal combustion engine (1, 1 ', 1 ", 1' ''), during which an exhaust stroke of a cylinder (2) exhaust gas therein from the cylinder (2) off and an exhaust system (12) supplied is to be in a particularly simple and reliable manner, a particularly high specific power output of the internal combustion engine (1, 1 ', 1 ", 1' '') and / or kept a particularly low specific fuel consumption. For this purpose, according to the invention in a first cycle phase of the exhaust stroke of the exhaust from the cylinder (2) exhaust pressure wave wholly or partially on the primary side of a Abgasladepumpe (30, 30 ', 30 ") transmitted before the exhaust gas to the exhaust system in a second cycle phase of the exhaust stroke (12).

Membrane pump, in particular for use in the exhaust gas system of an internal combustion engine, and internal combustion engine comprising a membrane pump

The invention relates to a membrane pump (1, 1', 1"), in particular for use in the exhaust gas system of an internal combustion engine (70), comprising a pressure housing (2), the inner volume (4) of which is divided by a number of elastically deformable membranes (6) into a plurality of sub-volumes (8, 10) that are separated from one another on the gas side. A pretensioning force is applied to the membrane (6) or each membrane such that in the pressure-less state, the sub-volume (8) which forms the primary side has a minimum value in the context of the deformability of the membrane (6) or each membrane. The membrane pump is to operate in a particularly efficiency-increasing manner when used in the exhaust gas system of an internal combustion engine (70). According to the invention, this is achieved by providing a leaf spring (36) as a restoring spring for applying the pretensioning force to the membrane (6).

Membranpumpe, insbesondere zur Verwendung im Abgasstrang eines Verbrennungsmotors, und Verbrennungsmotor mit Membranpumpe

Eine Membranpumpe (1, 1', 1"), insbesondere zur Verwendung im Abgasstrang eines Verbrennungsmotors (70), mit einem Druckgehäuse (2), dessen Innenvolumen (4) über eine Anzahl von elastisch verformbaren Membranen (6) in eine Mehrzahl von gasseitig voneinander getrennten Teilvolumina (8, 10) aufgeteilt ist, wobei die oder jede Membran (6) derart mit einer Vorspannkraft beaufschlagt ist, dass im drucklosen Zustand das die Primärseite bildende Teilvolumen (8) im Rahmen der Verformbarkeit der oder jeder Membran (6) einen Minimalwert aufweist, soll beim Einsatz im Abgassystem eines Verbrennungsmotors (70) besonders wirkungsgradsteigernd wirken. Dazu ist erfindungsgemäß zur Aufbringung der Vorspannkraft auf die Membran (6) eine Blattfeder (36) als Rückstellfeder vorgesehen.

Bomba de membrana, em particular, para o uso no trato de gás de escape de um motor de combustão, e motor de combustão que compreende uma bomba de membrana

BOMBA DE MEMBRANA, EM PARTICULAR, PARA O USO NO TRATO DE GÁS DE ESCAPE DE UM MOTOR DE COMBUSTÃO, E MOTOR DE COMBUSTÃO QUE COMPREENDE UMA BOMBA DE MEMBRANA. Trata-se de uma bomba de membrana (1, 1?, 1??), em particular, para o uso no trato de gás de escape de um motor de combustão (70), que compreende um alojamento de pressão (2), cujo volume interno (4) é subdividido por um número de membranas resilientemente deformáveis (6) em uma pluralidade de subvolumes (8, 10) separados entre si no lado de gás, em que uma força de inclinação é aplicada à membrana ou cada membrana (6) de tal modo que, no estado livre de pressão, o subvolume (8) que forma o lado principal tenha um valor mínimo em relação à deformabilidade da membrana ou de cada membrana (6), sendo que a bomba de membra deve atuar de modo a particularmente aumentar a eficácia durante o uso no sistema de escape de um motor de combustão (70). Com esse propósito, de acordo com a invenção, um feixe de molas (36) é fornecido como uma mola de restauração para aplicar a força de inclinação à membrana (6).

Membrane pump, in particular for use in the exhaust gas system of an internal combustion engine, and internal combustion engine comprising a membrane pump

A membrane pump (1, 1?, 1??), in particular for use in the exhaust gas tract of a combustion engine (70), comprising a pressure housing (2), the internal volume (4) of which is subdivided by a number of resiliently deformable membranes (6) into a plurality of sub- volumes (8, 10) separated from one another on the gas side, wherein a biasing force is applied to the or each membrane (6) in such a way that in the pressure-free state the sub- volume (8) forming the primary side has a minimum value in relation to the deformability of the or each membrane (6), is to act so as particularly to increase effectiveness during use in the exhaust system of a combustion engine (70). For this purpose, according to the invention, a leaf spring (36) is provided as a restoring spring for applying the biasing force to the membrane (6).

Bomba de membrana, en particular para su uso en el ramal de gas de escape de un motor de combustión interna, y motor de combustión interna con bomba de membrana

Bomba de membrana (1), en particular para el uso en el ramal de gas de escape (90) de un motor de combustión interna (70), con una carcasa de presión (2), cuyo volumen interno (4) se divide a través de un número de membranas elásticamente deformables (6) en una multitud de volúmenes parciales (8, 10) separados entre sí en el lado del gas, en donde la o cada membrana (6) está solicitada por una fuerza de pretensado de tal modo que en el estado sin presión, el volumen parcial (8 que forma el lado primario presenta un valor mínimo en el contexto de la deformabilidad de la o cada membrana (6), caracterizada porque para aplicar la fuerza de pretensado a la membrana (6) está previsto un resorte de lámina (36) como resorte de retroceso.

Gasführendes Drehklappenventil

Gasführendes drehklappenventil

Die Erfindung betrifft ein Drehklappenventil (30) zum Führen von Gas, insbesondere zur Verwendung in einer Frischgas- oder Abgasleitung einer Wärmekraftmaschine, mit einem Gehäuse (8), das einen Gehäuseträger (8a) und mindestens eine sich an diesen anschließende gasführende Leitung (24, 25) aufweist, wobei durch das Gehäuse (8) ein gasführender Innenraum (31) gebildet ist, ferner mit einer schwenkbar im Gehäuseträger (8a) gelagerten Welle (1) und einer mit der Welle (1) verbundenen Drehklappe (2) zum Öffnen und Schließen des Kanalquerschnitts des Gehäuseträgers (8a), sowie mit einem elektromagnetischen Antrieb (32) für den gebildeten Drehklappen-Wellen-Verbund (33), wobei der Antrieb (32) mindestens einen mit dem Drehklappen-Wellen-Verbund (33) verbundenen Anker (7) und mindestens einen Elektromagneten (18 bzw. 19) aufweist. Bei einem solchen Ventil wird vorgeschlagen, dass der elektromagnetische Antrieb (32) sich zumindest teilweise im gasführenden Innenraum (31) des Gehäuses (8) befindet. Durch diese Ausbildung des Drehklappenventils wird eine geringe axiale Baulänge des Ventils sichergestellt.

Schmirgelschläger für Schälmaschinen.