Turbine for exhaust gas turbocharger, has auxiliary blades, which are dimensioned such that throughput parameter of turbine wheel blades is set to throughput parameter of auxiliary blades in certain ratio, which is greater than fifteen

The turbine has a turbine wheel including a hube with a turbine wheel blades (6) and auxiliary blades (20). The auxiliary blades are arranged in a exhaust channel, which is defined by two turbine wheel blades, on the hub. The auxiliary blades are dimensioned in such a manner that a throughput parameter of the turbine wheel blades is set to a throughput parameter of the auxiliary blades in a ratio, which is greater than 15. An independent claim is also included for an exhaust-gas turbo charger in an internal combustion engine.

Charging device, particularly exhaust gas turbo charger, has rotor which is supported by combined axial or radial bearing unit in bearing housing

The charging device has a rotor (1) which is supported by a combined axial or radial bearing unit (2) in a bearing housing (3). The axial or radial bearing unit has an axial or radial bearing (4) and an appropriate counter bearing. The axial or radial bearing has an axially adjustable switching element (6) which is arranged in bearing housing. A spring unit (8) pressurizes the switching element in the direction of the rotor.

Metallic damping body

Method for manufacturing loading unit, particularly turbocharger for internal combustion engine of motor vehicle, involves storing shaft in bearing housing in rotationally movable manner

The method involves storing a shaft in a bearing housing (2) in a rotationally movable manner. The bearing housing is separated by cracking in two positions parallel to a rotation axis of a rotor unit, such that the separation by cracking of the bearing housing generates two fragments (4,5) with two fracture surfaces (6,7,6',7'). An independent claim is also included for a loading unit comprises a rotor unit, and a bearing housing made from casting, particularly metal casting.

Metallic damping body

Exhaust manifold, for internal combustion engine, is insulated by air and is formed as inner tube, which penetrates into cylinder head, and outer tube, which is fitted to cylinder head by fixing bracket.

The exhaust manifold consists of inner (4) and outer (7) tubes, which are arranged such that the outer tube surrounds the inner and is separated from it. The end of the inner tube penetrates into the cylinder head (1), to act as a guide, and the outer tube is fitted to the exterior of the cylinder head by means of the fixing bracket (9), with a separating washer (8) fitted between the bracket and cylinder head.

Composite valve for motor vehicle internal combustion engine has stem inserted into end of bore in valve head and retained by upsetting

The composite valve (1) for a motor vehicle internal combustion engine has a solid valve head (4) with a central axial bore to receive a valve stem (6). The end of the valve stem is electrically upset (9) to retain the stem in the valve head bore. The valve stem can be tubular.

Ceramic valve for reciprocating piston engines consists of ceramic valve plate and ceramic valve shaft of silicon nitride, connected via a hard-solder connection with silicon

The valve has a ceramic valve plate (4) and a ceramic valve shaft (3), with a rotary symmetrical joint face projecting axially into the valve plate interior. The connection between the valve parts, which are formed by separate blanks, is a hard-solder connection, with a hard-solder of e.g. metal or metal-like material, which when melting undergoes an irreversible chemical connection with the ceramic material. Both valve plate and shaft are of the same silicon nitride, and the hard solder is a silicon or silicon-iron alloy, of a composition dependent upon thermal loads on the valve.

Exhaust gas conduit for internal combustion engine has double wall formed between outer tube and inner tube, inner tube being of metallic material with high porosity

The inner tube (6) is a sintered metal fibre fleece. The metal fibres of the fleece have a maximum diameter of 50 micrometers. The inner wall (9) of the inner tube is provided with a catalytically active layer. In or on the wall of the inner tube ceramic insulation mats are provided. The material of the inner tube can be an iron basic alloy, a nickel basic alloy and can have an aluminum content of at least 5 to approximately 20 per cent. The material of the inner tube contains additives of lanthanide oxides. The outer tube (7) comprises a metal foil with a maximum thickness of 0.2 mm.

Multi-part valve, for an IC motor, has a lightweight valve head bonded to a lightweight valve shaft by friction welding using low-cost components giving high thermal and mechanical resistance

The multi-part valve, for an internal combustion motor, has a valve head (10) bonded to the tubular valve shaft (14) by friction welding. The welded joint (18) is at least partially outside the transit zone (6) of the valve shaft in the valve head, either within the cylindrical section (5) of the valve shaft or in an expanded zone (7) where the largest diameter (D) of the welded joint is at least 20% larger than the diameter (d) of the valve shaft.

EXHAUST MANIFOLD ISOLATES BY a SLIT From AIR FOR an INTERNAL COMBUSTION ENGINE

Dans ce collecteur d'échappement, isolé par une fente d'air, pour un moteur à combustion interne d'un véhicule automobile, qui comporte un catalyseur, comprenant un tube intérieur (4) et un tube extérieur (2) entourant ce dernier à distance et possédant une bride de raccordement côté culasse (9), le tube intérieur (4) pénètre par son extrémité de façon guidée dans la culasse (1) et seul le tube extérieur (2) peut être fixé sur la culasse par l'intermédiaire de la bride de raccordement (9). Application notamment aux voitures de tourisme.

Housing for exhaust gas turbocharger of internal-combustion engine of motor vehicle, has insert arranged in lining and comprising flow-guiding internal contour, where lining and insert are arranged in turbine section

The housing (2) has a lining (12) made of steel sheet and an insert (13) arranged in the lining. The insert is made of ceramics, and comprises a flow-guiding internal contour (14), where the lining and the insert are arranged in a turbine section (3). A bearing material (17) is arranged between the lining and the insert, and holds the insert in a position in the lining. The bearing material is formed by a bearing mat that encases the insert. The bearing material is designed as thermally insulated, and a turbine (6) is arranged in the turbine section.

Turbinengehäuse für einen Abgasturbolader

Die Erfindung betrifft ein Turbinengehäuse (1) für einen Abgasturbolader (2) mit einem Wastegateventil (3), und mit zwei Öffnungen (4, 5), wovon eine Öffnung (5) zum Durchführen einer Wastegatespindel (6) und die andere Öffnung (4) als Eingang zu einem Bypasskanal (7) ausgebildet ist. Erfindungswesentlich ist dabei, – dass ein Einsatz (8) vorgesehen ist, der einen Ventilsitz (9) für das Wastegateventil (3) und eine Lagerbuchse (10) zum Lagern der Wastegatespindel (6) aufweist, wobei an deren Ende ein zum Ventilsitz (9) passender Ventilteller (11) angeordnet ist, – dass der Einsatz (8) derart ausgebildet ist, dass in eingebautem Zustand sein Ventilsitz (9) die Öffnung (4) und die Lagerbuchse (10) die Öffnung (5) im Turbinengehäuse (1) überdeckt. The invention relates to a turbine housing (1) for an exhaust gas turbocharger (2) having a wastegate valve (3) and having two openings (4, 5), one opening (5) for passing through a wastegate spindle (6) and the other opening (4) ) is formed as an input to a bypass channel (7). It is essential to the invention that - an insert (8) is provided which has a valve seat (9) for the wastegate valve (3) and a bearing bush (10) for supporting the wastegate spindle (6), at the end of which a valve seat (9 ) is arranged such that in the installed state its valve seat (9) the opening (4) and the bearing bush (10) the opening (5) in the turbine housing (1) covered.

Exhaust-gas turbocharger for combustion engine of motor vehicle, has radial turbine, turbine housing flow through by exhaust gas and spiral or screw threaded exhaust gas emission housing provided to turbine housing

The exhaust-gas turbocharger (1) has a radial turbine and a turbine housing (2) flow through by exhaust gas. A spiral or screw threaded exhaust gas emission housing (5) is provided to the downstream of the turbine housing. The emissive exhaust gas flow is diverted in spiral or screw threaded path in an axial direction of the turbine housing.

Exhaust turbocharger has rotor having compressor wheel, turbine and shaft body between compressor wheel and turbine, where rotor rotates with operation of supercharger with numbers of revolutions within given work area

The exhaust turbocharger has a rotor having a compressor wheel, a turbine and a shaft body between compressor wheel and turbine. The rotor rotates with the operation of the supercharger with numbers of revolutions within a given work area up to the firmness border of the rotor. A rotor geometry, with which the work area lies within a sub-critical range of the numbers of revolutions or critical numbers of revolutions, lies above and outside of the work area.

Turbinengehäuse für einen Abgasturbolader

Die Erfindung betrifft ein Turbinengehäuse (1) für einen Abgasturbolader (2) mit einem aus zumindest zwei Teilen (3, 4) zusammengesetzten Spiralgehäuse (5) und einem Auslassrohr (6), welches gasdicht mit dem Turbinengehäuse (1) verbunden ist, – wobei die beiden Teile (3, 4) an einem radial äußeren Bereich (7) des Spiralgehäuses (5) miteinander verbunden sind, – wobei das zweite Teil (4) des Spiralgehäuses (5) von dem radial äußeren Bereich (7) über einen radial mittleren Bereich (8) in einen radial inneren Bereich (9) übergeht. Erfindungswesentlich ist dabei, dass das Auslassrohr (6) in dem radial äußeren Bereich (7) oder in dem radial mittleren Bereich (8) mit dem zweiten Teil (4) des Spiralgehäuses (5) verbunden ist. Hierdurch kann die Rissgefahr reduziert und die Lebensdauer des Abgasturboladers (2) gesteigert werden. The invention relates to a turbine housing (1) for an exhaust gas turbocharger (2) having a spiral housing (5) composed of at least two parts (3, 4) and an outlet pipe (6) connected in a gas tight manner to the turbine housing (1) the two parts (3, 4) are connected to one another at a radially outer region (7) of the spiral housing (5), - the second part (4) of the spiral housing (5) being from the radially outer region (7) via a radially middle one Area (8) in a radially inner region (9) passes. Essential to the invention is that the outlet tube (6) in the radially outer region (7) or in the radially central region (8) with the second part (4) of the spiral housing (5) is connected. As a result, the risk of cracking can be reduced and the service life of the exhaust gas turbocharger (2) can be increased.

EXHAUST MANIFOLD ISOLATES BY a SLIT From AIR FOR an INTERNAL ENGINE ACOMBUSTION

Dans ce collecteur d'échappement, isolé par une fente d'air, pour un moteur à combustion interne d'un véhicule automobile, qui comporte un catalyseur, comprenant un tube intérieur (4) et un tube extérieur (2) entourant ce dernier à distance et possédant une bride de raccordement côté culasse (9), le tube intérieur (4) pénètre par son extrémité de façon guidée dans la culasse (1) et le tube extérieur (2) peut être fixé sur la culasse par l'intermédiaire de la bride de raccordement (9). Application notamment aux voitures de tourisme.

VALVE OF LIGHT CONSTRUCTION IN SEVERAL PARTS FOR INTERNAL COMBUSTION ENGINES

L'invention concerne une soupape de construction légère (1, 2, 3) constituée de plusieurs parties, pour des moteurs à combustion interne, avec une tige de soupape (6, 7) et un plateau de soupape (4) massif, qui est muni d'une ouverture centrale (5) pour recevoir, par une liaison à ajustement de forme, l'extrémité, située côté plateau, de la tige de soupape (6, 7), les parties de soupape (4, 6, 7) étant reliées ensemble à demeure. Pour réaliser une soupape de construction légère en plusieurs parties pour des moteurs à combustion interne, de manière à permettre de résister aux charges thermiques et mécaniques se produisant pendant le fonctionnement du moteur, il est proposé selon l'invention que le plateau de soupape (4) soit relié à la tige de soupape (6, 7) par un procédé de façonnement de têtes à chaud.

COMPRESSOR WHEEL

A compressor wheel for an internal combustion engine may include a plurality of blades which in a circumferential direction of the wheel are spaced from one another. The plurality of blades may respectively include an inflow edge which during operation are subject to an inflow of a compressible fluid substantially axially to the wheel axis. The plurality of blades may include a surface layer of locally distinct materials to adapt to locally distinct loads during operation. 1. A compressor wheel for an internal combustion engine , comprising: a plurality of blades which in a circumferential direction of the wheel are spaced from one another , the plurality of blades respectively including an inflow edge which during operation are subjected to an inflow of a compressible fluid substantially axially to the wheel axis , wherein the plurality of blades include a surface layer of locally distinct materials adapt to locally distinct loads during operation.2. The compressor wheel according to claim 1 , wherein the blades respectively include at least one of an anti-corrosively coated surface and a region on the inflow edge provided with an armour.3. The compressor wheel according to claim 1 , wherein at least one blade on the inflow edge includes a first region having at least one of a first surface material and a first coating claim 1 , and a second region arranged adjacently in an axial direction of the wheel having at least one of a second surface material and a second coating.4. The compressor wheel according to claim 3 , wherein at least one of the first surface material is formed via a plasma electrolytic oxidation (PEO) layer and the second surface material is formed via an anodised layer.5. A compressor wheel according to claim 3 , wherein the first surface material in the axial direction of the compressor wheel extends over a length having a dimension of which is approximately 10 to 40% of an axial blade length.6634. The compressor wheel according to claim 1 , ...

Turbinengehäuse und Verfahren zum Herstellen eines Turbinengehäuses

Die Erfindung betrifft ein Turbinengehäuse, insbesondere für einen Abgasturbolader einer Brennkraftmaschine, mit einem Abgasführungsbereich (10), welcher zumindest einen mit einer Abgasflut eines Abgastrakts koppelbaren Spiralkanal (12a, 12b) und einen stromab des wenigstens einen Spiralkanals (12a, 12b) angeordneten Aufnahmeraum (14) für ein Turbinenrad umfasst, wobei wenigstens ein erstes und ein zweites Teilgehäuse (16a, 16b) vorgesehen sind, die komplementäre Wandbereiche des wenigstens einen Spiralkanals (12a) umfassen und unter Ausbildung des wenigstens einen Spiralkanals (12a) miteinander verbunden sind. Die Erfindung betrifft weiterhin einen Abgasturbolader mit einem Turbinengehäuse sowie ein Verfahren zum Herstellen eines Turbinengehäuses.

Leichtbauventil

Leichtbauventil (1) umfassend einen Ventilschaft (3), einen hohlen Ventilkegel (7) sowie einen Ventilteller (13), wobei der Ventilkegel und der Ventilteller (13) gemeinsam einen Hohlraum bilden, dadurch gekennzeichnet, dass der Ventilteller (13) mit einer Klemmaufnahme (23) für den Ventilschaft (3) versehen ist.

Leichtbauventil

Es wird ein Leichtbauventil (1), insbesondere für Brennkraftmaschinen, mit einem Ventilschaft (3), mit einem hohlen Ventilkegel (5) sowie mit einem den Ventilkegelhohlraum auf einer Seite verschließenden Ventilteller (7) vorgeschlagen. Das Leichtbauventil (1) zeichnet sich dadurch aus, dass die Anordnung der Fügestelle zwischen Ventilteller (7) und Ventilschaft (3) und/oder die Ausgestaltung der Anbindung des Ventilkegels (5) an den Ventilschaft (3) und/oder an den Ventilteller (7) so gewählt sind/ist, dass die Fügestelle zwischen Ventilteller (7) und Ventilschaft (3) im Betrieb des Leichtbauventils (1) frei oder im Wesentlichen frei von auf den Ventilteller (7) beziehungsweise den Ventilschaft (3) wirkenden Biegekräfte ist.

Friction welding of e.g. titanium-aluminum alloy to steel to make e.g. engine valves, induction-heats higher-melting component uniformly, friction welds and then anneals

Components (1, 2) with high temperature resistance are welded. In an example, the first (1) is made of TiAl, the second (2) of steel, which deforms at lower temperatures than TiAl. The friction welding surface (14) of the first material is first heated inductively, achieving the most uniform temperature distribution possible, in the radial and axial directions. During friction welding, continuous external heat supply is maintained. After friction welding, stress-relieving annealing of the bond takes place, during which the two components become materially-bonded at the friction welded surfaces.

Bearing bush for hydrodynamic journal bearings for supporting rotor in stator, particularly exhaust gas turbocharger, has radially inner bearing surface, which has porous upper surface structure or forms porous upper surface structure

The bearing bush (1) has a radially inner bearing surface (5), which has a porous upper surface structure (6) or forms a porous upper surface structure. An inner sleeve (7) is arranged with an upper surface structure or porous structure. An outer sleeve (8) is arranged with a non-porous or compact structure. An independent claim is included for an exhaust gas turbocharger.

Charger, particularly exhaust gas turbocharger, has rotor, which is supported by bearing device, where bearing device has stator side receptacle with edge facing rotor, in which complementary rotor engages forming bearing gap

The charger (1) has a rotor (2), which is supported by a bearing device (4), where the bearing device has a stator side receptacle (6) with an edge (7) facing the rotor, in which complementary rotor engages forming a bearing gap (8). The rotor has an annular wrap (9), which encompasses the stator side edge of the receptacle. The stator side receptacle is conical, cylindrical or spherical.

Rotor for exhaust-gas turbocharger of internal-combustion engine of motor vehicle, has bush radially connected inside shaft and outside turbine wheel, where bush is soldered or welded with shaft

The rotor (2) has a turbine wheel (4) made of titanium aluminide, and a shaft (5) made of steel and fixedly connected with a compressor wheel (3) and the turbine wheel. A bush is radially connected inside the shaft and outside the turbine wheel. The bush is soldered or welded with the shaft. The bush is sintered with the turbine wheel and formed as a press mold part, injection molding part and as a sintered part. The bush is formed as a thermal insulator.

Lightweight valve

A lightweight valve (1), in particular for internal combustion engines, and a method for manufacturing the lightweight valve (1) are provided. The valve comprises a valve stem (3), a hollow valve cone (7) and a valve disk (13), the valve cone (7) and the valve disk (13) together forming a hollow space. The valve disk (13) is provided with a gripping receiver (23) for the valve stem (3).

Bearing arrangement, particularly bearing of rotor for turbocharger, has relatively stationary bearing surface and relatively movable bearing surface that is separated from relatively stationary bearing surface

The bearing arrangement has a relatively stationary bearing surface and a relatively movable bearing surface that is separated from the relatively stationary bearing surface by a lubricating oil layer. One of the bearing surfaces is formed in an oleophillic nature and other bearing surface is formed in an oleophobic nature. The bearing surface is provided with polysilazane coating.

Sekundärluftfördereinrichtung für eine Brennkraftmaschine

Bekannte Sekundärluftfördereinrichtungen weisen einen Sekundärluftlader mit einem Verdichter und einer Turbine auf, die beide über Zuleitungen an die Reinluftseite eines Ansaugtraktes der Brennkraftmaschine angeschlossen sind, um so die von einem Luftfilter gereinigte Ansaugluft dann als sogenannte Sekundärluft in einen Abgasbereich der Brennkraftmaschine abzugeben. Die Bereitstellung derartiger Zuleitungen ist jedoch aufwendig und beschränkt die Auswahl des Einbauortes für den Sekundärluftlader erheblich. DOLLAR A Es wird eine Sekundärluftfördereinrichtung vorgeschlagen, die einen Sekundärluftlader (14) mit einem Verdichter (15) und mit einer Turbine (16) aufweist, wobei die Turbine (16) über den in einem Ansaugtrakt (5) der Brennkraftmaschine herrschenden Unterdruck angetrieben ist und ihrerseits den Verdichter (15) antreibt, der Sekundärluft in einen Abgasbereich (12) der Brennkraftmaschine fördert, wobei über einen gemeinsamen Luftfilter (45) die von dem Verdichter (15) und von der ...

Compressor and turbine wheel for a secondary air delivery unit is constituted as a single component with compressor and turbine blades

The compressor and turbine wheel for a secondary air delivery unit is constituted as a single component (1) with compressor and turbine blades (3, 4).

Exhaust gas turbocharger for internal combustion engine has bearing with two chamber whereby compressor wheel back and turbine wheel back forms first chamber wall of first and second chamber respectively

Exhaust gas turbocharger (10) has bearing (20) with two chamber, first chamber (22) and second chamber (23). The compressor wheel back (2) forms the first chamber wall (24) of first chamber and the turbine wheel back (4) forms the first chamber wall (26) of the second chamber. For the supply of the medium (21) first bearing cover (30) of first chamber has first entrance opening (34) while second bearing cover (31) of the second chamber has second entrance opening (35).

Gebautes Ventil für Hubkolbenmaschinen

The invention relates to a multi-piece valve (1) for internal combustion piston engines, wherein the valve head (3) is connected to the valve stem (2) in such a way that it is traction and pressure resistant. The valve head (3) has an annular bearing surface (5) for a stem-sided shoulder in the region of a continuous center opening (4). The center opening (4) is enlarged on the combustion chamber side (10) of the valve head. The head-side end (13) of the valve stem (2) is plastically enlarged in such a way that said enlargement (6) is filled in a positive fit. In order to increase the service life of the connection between the valve head (3) and the valve stem, the combustion chamber side enlargement (6) of the center opening (4) and the appropriately conformed end-side enlargement of the valve stem (2) are embodied in such a way that they are non-circular, thereby resulting in positive-fit torsional fixing between the valve stem (2) and the valve head (4).

Charging device i.e. exhaust gas turbocharger, for motor vehicle, has turbine or compressor geometry comprising guide vanes and mounted in axial direction, where each vane has blade, pin and rim connected with one another as single-piece

The device has a variable turbine or compressor geometry (1) comprising guide vanes (3) supported at a vane bearing ring (2) in a rotatable manner and an adjusting ring (4) for adjusting the vanes. Each vane has a guide vane blade (5), a vane bearing pin and a toothed rim (8) that are connected with one another as a single-piece. The geometry is designed in such a manner that the geometry is assembled and mounted in an axial direction (14). The vanes and the adjusting ring are manufactured in a metal inject moulding process from ceramics, and the bearing ring is designed as rotating part. An independent claim is also included for a method for mounting a charging device.

Hochgeschwindigkeitslaufrad

Die Erfindung betrifft ein Hochgeschwindigkeitslaufrad zum Fördern von gasförmigen oder flüssigen Medien, beispielsweise als Verdichterrad (2) für einen Abgasturbolader. Das Hochgeschwindigkeitslaufrad weist eine verstärkende Kernstruktur (4) und einen äußeren Funktionsabschnitt (6) auf. Die Erfindung zeichnet sich dadurch aus, dass zur Darstellung der Kernstruktur (4) Verstärkungshülsen (8) konzentrisch übereinander geschoben sind, wobei die Länge (10) der jeweiligen Verstärkungshülsen (8) variieren. Ferner ist der Funktionsabschnitt (6) auf die Kernstruktur (4) aufgegossen.

Leichtbauventil

Es wird ein Leichtbauventil (1), insbesondere für Brennkraftmaschinen, und ein Verfahren zur Herstellung des Leichtbauventils (1) vorgeschlagen. Dieses umfasst einen Ventilschaft (3), einen hohlen Ventilkegel (7) sowie einen Ventilteller (13), wobei der Ventilkegel (7) und der Ventilteller (13) gemeinsam einen Hohlraum bilden. Das Leichtbauventil (1) zeichnet sich dadurch aus, dass der Ventilteller (13) mit einer Klemmaufnahme (23) für den Ventilschaft (3) versehen ist.

Leichtbauventil

Compressor and turbine wheel for a secondary air delivery unit is constituted as a single wheel with compressor and turbine blades and with a seal between the wheel and a housing section

The compressor and turbine wheel for a secondary air delivery unit is constituted as a single wheel (1) with compressor and turbine blades (3, 4), and with a seal (23) which is located between the wheel and a housing (26) of the secondary air delivery unit.

Multipart composite valve for an internal combustion engine

A multipart composite valve for an internal combustion engine, in which a valve shaft (2) and a valve plate (4) are embodied separately while being joined together in an overlapping area (6). The invention is characterized in that at least some parts of the valve shaft (2) are provided with an intermediate layer (8) in the overlapping area (6). Said intermediate layer (8) forms an integral joint with both the valve shaft (2) and the valve plate (4) in the form of a chemical bond, the valve plate (4) being cast onto the valve shaft (2).

Compressor wheel for exhaust gas turbocharger, has split blades arranged between two consecutive complete blades, where blade periods comprise four blades such as one complete blade and three split blades

The wheel (1) has a set of split blades (3) arranged between two consecutive complete blades (2) of a set of complete blades, where the split blades exhibit different lengths. A set of blade periods is provided, where each blade period comprise four blades such as one complete blade and three split blades.

Charging device i.e. exhaust gas turbocharger, has tensioning clamps provided for fastening housing sections and including spring arms for clamping flanges of housing sections against each other

The device (1) has a housing including two different housing sections e.g. turbine housing (2) and a compressor housing (3), where the housing sections comprise radially outward aligned flanges. Two circular segment-like C-shaped tensioning clamps (5) are provided for fastening the housing sections. The tensioning clamps include spring arms for clamping the flanges of the housing sections against each other. A bearing housing is arranged between the turbine housing and the compressor housing. Circular grooves are provided at the flanges of the housing sections.

Method of permanently connecting a valve stem to a valve part for a combustion engine presses the valve part down against a projection from the stem to give a positive fit

A method of permanently connecting a valve stem (3) to a valve part (5) when the valve part has an opening for the stem end and the flat side of the valve is to form a positive fit around the stem comprises pressing the valve with an adjustable down force (FN) against the projection (23) to give a prestressed fit between the stem end and valve. An independent claim is also included for a valve formed as above.

Exhaust gas turbo-charger for internal combustion engine in motor vehicle, has rotor supported in stator via pneumatic radial bearing and axial bearing, where radial bearing is pneumatically loaded by rotor, during operation of charger

The charger (1) has a rotor (2) supported in a stator (3) via a pneumatic radial bearing (5) and an axial bearing (6) or hydrodynamic sliding bearing. The pneumatic radial bearing is pneumatically loaded by the rotor, during operation of the charger. The rotor has a channel system (7), which comprises a longitudinal channel (10) arranged co-axially in the rotor. The channel communicates with the pneumatic radial bearing via radial channels (11). The rotor comprises a compressor wheel (9) and a turbine wheel (14), and is axially unsupported between the compressor wheel and the turbine wheel.

Exhaust gas turbocharger i.e. supercharger, for use in vehicle, has rotor provided with compressor part and turbine part, where rotor is radially and/or axially mounted only at axial ends in pivotable manner

The turbocharger has a rotor provided with a compressor part (1) and a turbine part (2), where the rotor is radially and/or axially mounted only at axial ends in a pivotable manner. The compressor part and the turbine part are directly interconnected to a combined compressor and a turbine wheel. A spacer ring (9) is arranged between a compressor housing part (7) and a turbine housing part (8) in a region of a radial plane for separation of the compressor housing part and the turbine housing part, where the spacer ring is designed as a bearing element.

Leichtbauventil

Leichtbauventil (1) mit einem Ventilschaft (3), mit einem hohlen Ventilkegel (5) sowie mit einem den Ventilkegel (5) verschließenden Ventilteller (7), - wobei der Ventilkegel (5) als separates Bauteil ausgebildet ist und an seinem durchmesserkleineren Endbereich am Ventilschaft (3) oder an einem am Ventilteller (7) vorgesehenen Schaftverbindungsglied (49) fixiert ist, - wobei der Übergang zwischen Ventilkegel (5) und Ventilschaft (3) und der Übergang zwischen Ventilteller (7) und Ventilkegel (5) in deren Anbindungsbereich zumindest annähernd stufenlos ist, - und wobei der Ventilteller (7) auf seiner dem Ventilkegel (5) zugewandten Flachseite mit einer Vertiefung (23) versehen ist, dadurch gekennzeichnet, - und dass der Ventilkegel (5) mit seinem durchmessergrößeren Endbereich in die Vertiefung (23) hineinragt, und - dass die Vertiefung (23) als Zentriersitz ausgebildet ist.

Metallischer Dämpfungskörper

Exhaust gas turbocharger for use in airplane, has rotor arranged at rotor axle, which is inclined with respect to horizontal plane at inclination angle, where inclination angle is of specific range

The turbocharger has a rotor (1) comprising a compressor part (2) and a turbine part (4) that are connected by a common shaft (3). The rotor is arranged at a rotor axle that is inclined with respect to a horizontal plane at an inclination angle (phi) that is in the range of 45-90 degree. A rotor bearing (5) has an active controller for regulation of position of the rotor axle. The rotor bearing is designed as a plastic sliding bearing, magnet bearing or air bearing and is free from liquid or solid lubricants.

Leichtbauventil

Leichtbauventil (1) mit einem Ventilschaft (3), einem hohlen Ventilkegel (5) sowie einem den Ventilkegelhohlraum auf einer Seite verschließenden Ventilteller (7), wobei die Anordnung der Fügestelle zwischen Ventilteller (7) und Ventilschaft (3) so gewählt ist, dass die Fügestelle zwischen Ventilteller (7) und Ventilschaft (3) im Betrieb des Leichtbauventils (1) frei von auf den Ventilteller (7) und/oder den Ventilschaft (3) wirkenden Biegekräften ist, dadurch gekennzeichnet, - dass der Ventilteller (7) ein Schaftverbindungsglied (21) aufweist, das einstückig mit dem Ventilteller (7) ausgebildet ist und an seinem freien Ende mit dem Ventilschaft (3) verbunden ist, - und dass die Fügestelle zwischen Schaftverbindungsglied (21) und Ventilschaft (3) sich innerhalb des Ventilkegelhohlraums befindet.

Verfahren zur Herstellung eines Werkstücks aus einem Verbundmaterial

Die Erfindung betrifft ein Verfahren zur Herstellung eines Werkstücks aus einem Verbundmaterial, wobei Verstärkungspartikel in ein Gussmaterial eingebettet werden, wobei eine vorbestimmte Verteilung zwischen Verstärkungspartikeln und einem Bindemittel im Volumen einer Gussform des Werkstücks die Verteilung der Verstärkungspartikel in dem Gussmaterial des herzustellenden Verbundmaterials definiert. Beim erfindungsgemäßen Herstellungsverfahren wird das Bindemittel in einem entsprechenden Gussvorgang durch das Gussmaterial ersetzt, wobei die vorbestimmte Verteilung der Verstärkungspartikel, welche durch die Verteilung zwischen den Verstärkungspartikeln und dem Bindemittel in dem Volumen der Gussform vorgegeben wird, beibehalten bleibt. Die Erfindung betrifft auch ein Werkstück aus einem Verbundmaterial, welches gemäß dem erfindungsgemäßen Verfahren herstellbar ist.

Blade wheels for rotor assembly of exhaust gas turbo charger of internal-combustion engine of motor vehicle, have multiple rotor blades, which are arranged between front sides and rear sides of blade wheels

The blade wheels (18a,18b) have multiple rotor blades (19a,19b), which are arranged between front sides (26b) and rear sides (28a,28b) of the blade wheels and a balancing profile (24). The blade wheels are balanced by operating the balancing profile. The balancing profile is formed opposite to an exterior surface of the blade wheels. An independent claim is included for a method for balancing the blade wheels.

Production method for producing stator winding has rotor with poles fastened to the shaft/wave while the stator is fastened coaxial within the housing and conductors arranged at the ends of the poles

The method comprises rotor (1) with four poles fastened to a shaft/wave (2) stored in a housing (3) turntable. A stator (4) is fastened coaxial to the rotor within the housing, with the rotor and stator having a laminated iron sheet metal package. On the poles (5,6), exciter windings are arranged in the form of coils with conductors (7,8,9,10) arranged at the ends.

Lightweight valve

A lightweight valve (1), in particular for internal combustion engines, is provided, with a valve stem (3), with a hollow valve cone (5) and with a valve disk (7) closing the valve cone hollow space on one side, a valve cone support being provided in the hollow space. The valve cone support is provided at a distance from the valve disk (7).

Rotating fluid flow engine for exhaust turbocharger for internal combustion engine of motor vehicle, has rotor with compressor wheel and turbine wheel, where rotor is supported around rotational axis in fluid flow engine in pivoting manner

The rotating fluid flow engine (1) has a rotor (3) with a compressor wheel (4) and a turbine wheel (5), where the rotor is supported around a rotational axis (6) in the fluid flow engine in a pivoting manner. A disk-shaped heat protection plate (7) is arranged to the rotational axis between two components of the fluid flow engine in an axial manner. The heat protecting plate is connected with the rotor in a torque-proof manner.

Abgasturbolader für eine Brennkraftmaschine und Verfahren zum Betreiben eines Abgasturboladers einer Brennkraftmaschine

Die Erfindung betrifft einen Abgasturbolader für eine Brennkraftmaschine eines Kraftfahrzeugs, mit einem in einem Ansaugtrakt der Brennkraftmaschine anordenbaren Verdichtergehäuse (10), einem in einem Abgastrakt der Brennkraftmaschine anordenbaren Turbinengehäuse und einem Laufzeug (14), welches innerhalb des Verdichtergehäuses (10) angeordnetes Verdichterrad (16) und ein innerhalb des Turbinengehäuses (12) angeordnetes und über eine Welle (18) drehfest mit dem Verdichterrad (16) gekoppeltes Turbinenrad (20) umfasst, wobei eine Gaszuführleitung (24a, 24b) vorgesehen ist, mittels welcher dem Turbinenrad (20) Gas zum zumindest mittelbaren Beaufschlagen seines Turbinenradrückens (26) zuführbar ist. Die Erfindung betrifft weiterhin ein Verfahren zum Betreiben eines Abgasturboladers.

Lightweight Valve

A lightweight valve ( 1 ), in particular for internal combustion engines, is provided, with a valve stem ( 3 ), with a hollow valve cone ( 5 ) and with a valve disk ( 7 ) closing the valve cone ( 5 ), the valve disk ( 7 ) being provided with a recess ( 23 ) on its flat side facing the valve cone ( 5 ). The lightweight valve ( 1 ) has a valve cone ( 5 ) projecting with its end region of greater diameter into the recess ( 23 ).

Catalyst for purifying IC engine exhaust gas

The catalyst for purifying IC engine exhaust gas has a coating (2) on a carrier (1) having passages (3) in the flow direction (4) of the exhaust gas. Perforations (5) are provided in the catalyst carrier diagonally to the passages.

Metall-Keramik-Verbundwerkstoff und seine Verwendung

The invention relates to a metal-ceramic composite material comprising a ceramic matrix and at least one metallic phase, which permeate one another, together form a body that is practically impervious and are in contact with one another on their boundary surfaces. The composite material is characterised in that the boundary surfaces are acicular in shape and that the metallic phases and the ceramic matrix are interlocked by the acicular boundary surfaces. In addition, tubular channels, which are filled with at least one metallic phase, penetrate the composite material.

Leichtbauventil

Es wird ein Leichtbauventil (1), insbesondere für Brennkraftmaschinen, mit einem Ventilschaft (3), mit einem hohlen Ventilkegel (5) sowie mit einem den Ventilkegelhohlraum auf einer Seite verschließenden Ventilteller (7), wobei im Hohlraum Ventilkegelabstützmittel vorgesehen sind, vorgeschlagen. Das Leichtbauventil (1) zeichnet sich dadurch aus, dass die Ventilkegelabstützmittel in einem Abstand vom Ventilteller (7) vorgesehen sind.

Abgasturbolader für eine Brennkraftmaschine

Die Erfindung betrifft einen Abgasturbolader (10) für eine Brennkraftmaschine, mit einem Verdichter (1) und mit einer Turbine (3), wobei der Verdichter (1) und die Turbine (3) über eine Welle (5) verbunden sind, welche über ein Lager (20) abgestützt ist, wobei das Lager (20) berührungslos ausgebildet ist und ein in einer Kammer (22) befindliches Medium (21) aufweist, das eine in der Kammer (22) mit der Welle (5) drehfest verbundene Scheibe (27) umgibt, wobei das Medium (21) über mindestens eine am Lager (20) vorgesehene Öffnung (23) in die Kammer (22) gelangt. DOLLAR A Erfindungsgemäß weist die Welle (5) eine Nut (30) auf, die es ermöglicht, dass das Medium (21) aus der Kammer (22) über die Nut (30) austritt oder in die Kammer (22) über die Nut (30) eintritt, die nach Herstellung eines Kräftegleichgewichtes im Lager (20) wieder geschlossen ist. DOLLAR A Die Erfindung ist für Abgasturbolader überwiegend im Kraftfahrzeugbau vorgesehen.

Composite component for use in exhaust gas turbocharger of motor vehicle, has shaft possessing higher thermal expansion coefficient than that of hub part i.e. turbine wheel, such that hub part and shaft are radially braced with each other

The composite component (8) has a shaft (1) i.e. turbocharger shaft, extending into an opening i.e. cylindrical through-hole, of a hub part (5) i.e. turbine wheel, and connected with the hub part by a radial press fitting. The shaft possesses a higher thermal expansion coefficient than that of the hub part such that the hub part and the shaft are radially braced with each other during the operation of the composite component under temperature effect. The turbine wheel is made of a titanium-aluminum alloy, and the shaft is made of a high heat-resistant steel material.

Housing or component e.g. compressor stator, ensemble e.g. exhaust turbo charger, has bearing surfaces arranged at counter-joining piece, turned away from joining plane and extended parallel to joining plane

The ensemble has a set of engagement hooks (2) provided with bed-plates (18) perpendicular to a joining plane. Clamping surfaces facing the joining plane are provided at a counter-joining piece (1) in the joining plane. The clamping surfaces overlap bearing surfaces by clamping with clamping force perpendicular to the joining plane. The bearing surfaces are arranged at the counter-joining piece, and are turned away from the joining plane and extended parallel to the joining plane. The joining piece is arranged as a part of housing components e.g. compressor stator and turbine case. The stator is made of aluminum or plastic. The turbine case is made of steel. An independent claim is also included for a method for installing a housing.

Abgasturbolader für einen Verbrennungsmotor

Die Erfindung betrifft einen Abgasturbolader für einen Verbrennungsmotor. Aufgabe der Erfindung ist es, einen Abgasturbolader zu entwickeln, der kostengünstig aufgebaut ist und der eine verbesserte Funktionalität zeigt. Die Erfindung besteht darin, dass bei einem Abgasturbolader für einen Verbrennungsmotor, mit einem im Abgasstrom des Motors angeordneten Turbinenrad aus einer warmfesten Leichtmetalllegierung, mit einem im Ansaugluftstrom des Motors angeordneten Verdichterrad, mit einer Welle aus Stahl, wobei das Verdichterrad auf der Welle sitzt und das Turbinenrad durch Schweißen mit der Welle verbunden ist, und mit einer Lagerung für die Welle, am Turbinenrad (1) eine dem Wellendurchmesser (5) angepasste Nabe (4) ausgebildet ist, wobei die Verbindungsstelle (3) zwischen der Nabe (4) des Turbinenrades (1) und der Welle (2) in der Umgebung der Lagerung (6, 7, 14, 15) angeordnet ist. The invention relates to an exhaust gas turbocharger for an internal combustion engine. The object of the invention is to develop an exhaust gas turbocharger, which is constructed inexpensively and which shows improved functionality. The invention consists in that, in an exhaust gas turbocharger for an internal combustion engine, with a arranged in the exhaust stream of the engine turbine made of a heat-resistant alloy, with a arranged in the intake air flow of the engine compressor, with a shaft made of steel, wherein the compressor sits on the shaft and the Turbine is connected by welding to the shaft, and with a bearing for the shaft on the turbine wheel (1) a shaft diameter (5) adapted hub (4) is formed, wherein the connection point (3) between the hub (4) of the turbine wheel (1) and the shaft (2) in the vicinity of the storage (6, 7, 14, 15) is arranged.

Verdichterrad und/oder Turbinenrad für eine Sekundärluftfördereinrichtung

Bekannte Verdichterräder bzw. Turbinenräder für eine Sekundärluftfördereinrichtung sind in nicht bedeckter Bauweise ausgeführt, bei der ihre Schaufeln in ein Gehäuse eingebracht sind und zwischen den Schaufeln und dem Gehäuse stets ein Radialspalt vorliegt, der zu Verlusten führt. DOLLAR A Es wird vorgeschlagen, das Verdichterrad (53) und/oder das Turbinenrad (52) als Radialverdichter bzw. Radialturbine auszuführen, wobei die Flügelräder (71) von einem Raddeckel (72) überdeckt sind. DOLLAR A Das erfindungsgemäße Verdichterrad bzw. Turbinenrad ist für eine Sekundärluftfördereinrichtung für Brennkraftmaschinen vorgesehen. Known compressor wheels or turbine wheels for a secondary air conveyor are designed in uncovered construction, in which their blades are inserted into a housing and between the blades and the housing is always a radial gap, which leads to losses. DOLLAR A It is proposed to perform the compressor wheel (53) and / or the turbine wheel (52) as a radial compressor or radial turbine, wherein the impellers (71) of a wheel cover (72) are covered. DOLLAR A The compressor according to the invention or turbine wheel is provided for a secondary air conveyor for internal combustion engines.

Mehrteiliges zusammengesetztes Ventil für eine Brennkraftmaschine

Die Erfindung betrifft ein mehrteiliges zusammengesetztes Ventil für eine Brennkraftmaschine, wobei ein Ventilschaft (2) und Ventilteller (4) getrennt ausgestaltet sind und in einem Überdeckungsbereich (6) aneinander gefügt sind. Die Erfindung zeichnet sich dadurch aus, dass der Ventilschaft (2) im Überdeckungsbereich (6) zumindest teilweise mit einer Zwischenschicht (8) versehen ist. Die Zwischenschicht (8) steht sowohl mit dem Ventilschaft (2) als auch mit dem Ventilteller (4) stoffschlüssig in Form einer chemischen Verbindung in Verbindung. Der Ventilteller (4) ist dabei am Ventilschaft (2) angegossen.

Turbine

Turbine, insbesondere für einen Abgasturbolader, mit einer Welle (2) und einem quer-pressverbundenen Turbinenrad (1), wobei das Turbinenrad (1) einen geringeren Wärmeausdehnungskoeffizienten besitzt als die Welle (2), dadurch gekennzeichnet, dass das Turbinenrad (1) aus Titan-Aluminid besteht.

METALL-KERAMIK-VERBUNDWERKSTOFF

Katalysator zur Reinigung der Abgase einer Brennkraftmaschine

Katalysator zur Reinigung der Abgase einer Brennkraftmaschine, mit einer die Katalyse der Abgase bewirkenden Beschichtung (2) auf einem Trägerkörper (1), der in Strömungsrichtung (4) der Abgase Durchlässe (3) aufweist, wobei der Trägerkörper (1) aus mehreren Lagen von Metallfolien besteht, die Perforationen (5) quer zu den Durchlässen (3) aufweisen, dadurch gekennzeichnet, daß der Trägerkörper (1) durch Torsion der Folienlagen eine Helix-Struktur einnimmt.

Verdichterrad

Das erfindungsgemäße Verdichterrad besitzt einen Grundkörper aus Aluminium bzw. Leichtmetall und antikorrosiv beschichtete Oberflächen an den Schaufeln, wobei insbesondere eine lokal unterschiedliche Beschichtung entsprechend lokal unterschiedlichen Beanspruchungen vorgesehen ist. The compressor according to the invention has a base made of aluminum or light metal and anticorrosive coated surfaces on the blades, in particular, a locally different coating is provided according to locally different stresses.

Leichtbauventil

Leichtbauventil

Es wird ein Leichtbauventil (1) für Brennkraftmaschinen vorgeschlagen, das einen Ventilschaft (3), einen hohlen Ventilkegel (7) sowie einen den Ventilkegel (7) verschließenden Ventilteller (9) umfasst. Dabei ist der Ventilschaft (3) an seinem dem Ventilteller (9) zugewandten Ende mit einem Hohlraum (5) versehen. Das Leichtbauventil (1) zeichnet sich durch mindestens ein am Ventilteller (9) vorgesehenes Kraftübertragungselement (19) aus, das durch den hohlen Ventilkegel (7) in den Schafthohlraum (5) eingreift.

Exhaust gas turbocharger for a motor vehicle, comprises shaft bearing turbine wheel and compressor impeller, where the turbine wheel, the compressor impeller and the shaft are formed as single-piece metallic powder injection molded part

The exhaust gas turbocharger comprises a shaft (2) bearing a turbine wheel (1) and a compressor impeller (3), where the turbine wheel, the compressor impeller and the shaft are formed as a single-piece metallic powder injection molded part that is one-component injection molded part or two-component injection molded part and/or as a three-component powder injection molded part and are sintered. The shaft and the turbine wheel are formed as one-component injection molded part or two-component powder injection molded part and are sintered, where the shaft has less thermal conductivity. The exhaust gas turbocharger comprises a shaft (2) bearing a turbine wheel (1) and a compressor impeller (3), where the turbine wheel, the compressor impeller and the shaft are formed as a single-piece metallic powder injection molded part that is one-component injection molded part or two-component injection molded part and/or as a three-component powder injection molded part and are sintered. The shaft and ...

HIGH-SPEED BLOWER IMPELLER

PROBLEM TO BE SOLVED: To provide an impeller which receives a high centrifugal load and solves a defect such that a complicated impeller structure cannot be reproduced or that a fiber-reinforced portion cannot be united with the impeller completely. SOLUTION: The impeller of the invention is, for example, a high-speed blower impeller which serves to distribute a medium of gas or liquid as a compressor wheel (2) for an exhaust gas turbocharger. The high-speed blower impeller includes a reinforced core structure (4) and a functional piece section (6) provided on the outside. In the invention, in order to manufacture the core structure (4), reinforced sleeves (8) are concentrically pushed in each other. In that case, the lengths (10) of the respective reinforced sleeves (8) may be various. Further, the functional piece section (6) is formed on the core structure (4) by casting. COPYRIGHT: (C)2005,JPO&NCIPI ...

Loading device i.e. exhaust gas turbocharger, for internal combustion engine, has spiral housing arranged coaxial to axis and comprising axial housing outlet connected to compressor inlet and housing inlet oriented transverse to axis

The device (1) has a compressor wheel (2) arranged in a compressor housing (3) in a rotatable manner with respect to a rotational axis (4). The housing has an axial compressor inlet (8), and a spiral housing (9) is arranged coaxial to the axis. The spiral housing has an axial housing outlet (10) that is connected to the compressor inlet and a housing inlet (11) that is oriented transverse to the axis. The spiral housing has a conical core (13) that extends till to the housing outlet, where the spiral housing is formed partially by an integral component of the compressor housing.

Abgasturbolader

Die vorliegende Erfindung betrifft einen Abgasturbolader (1) für eine Brennkraftmaschine, insbesondere eines Straßenfahrzeugs, mit einem Turbinenrad (2) zum Entspannen von Abgas der Brennkraftmaschine, das um eine Rotationsachse (5) drehbar gelagert ist, einem Turbinengehäuse (3), in dem das Turbinenrad (2) zwischen einem Hochdruckbereich (6) des Turbinengehäuses (3) und einem Niederdruckbereich (7) des Turbinengehäuses (3) angeordnet ist. Ein verbesserter Wärmehaushalt lässt sich realisieren, wenn das Turbinengehäuse (3) im Niederdruckbereich (7) eine das Abgas führende Innenschale (9) und eine Außenschale (10) aufweist, die zur Ausbildung einer Luftspaltisolation angeordnet sind.

Charging device i.e. exhaust gas turbo charger, for increasing power of internal combustion engine in motor vehicle, has sealing area comprising labyrinth sealing device, where stator and area together form sealing device

The device (1) has a compressor housing (3) for bordering a turbine housing (2). The housings together form a stator, and a turbine wheel (5) lies at an axial distance to a compressor wheel (6) at a rear side over a sealing area of a rotor (4). The sealing area comprises a labyrinth sealing device (7) that comprises multiple chambers (8, 8', 8''). The stator and the sealing area of the rotor together form the labyrinth sealing device. A stepped sealing contour is arranged at the stator, and co-acts with stepped sealing ribs at the sealing area of the rotor.

Mehrteiliges zusammengesetztes Ventil für eine Brennkraftmaschine

Leichtbauventil

Es wird ein Leichtbauventil (1), insbesondere für Brennkraftmaschinen, mit einem Ventilschaft (3), mit einem hohlen Ventilkegel (5) sowie mit einem den Ventilkegel (5) verschließenden Ventilteller (7), wobei der Ventilteller (7) auf seiner dem Ventilkegel (5) zugewandten Flachseite mit einer Vertiefung (23) versehen ist. Das Leichtbauventil (1) zeichnet sich dadurch aus, dass der Ventilkegel (5) mit seinem durchmessergrößeren Endbereich in die Vertiefung (23) hineinragt.

Abgas-Katalysator für eine Brennkraftmaschine

Exhaust Gas Turbo Charger For Internal Combustion Engine

In an exhaust gas turbocharger for an internal combustion engine, with a turbine wheel arranged in the exhaust gas stream of the engine and including a heat-resistant light metal alloy, with a compressor wheel arranged in the intake air stream of the engine, with a shaft including steel, the compressor wheel being seated on the shaft and the turbine wheel being connected to the shaft by welding, and with a mounting for the shaft, a hub adapted to the shaft diameter is formed on the turbine wheel, the connection point between the hub of the turbine wheel and the shaft being arranged in the vicinity of the mounting.

Spin generator for spin impinged inflow of compressor impeller of loading device, particularly exhaust gas turbocharger for internal combustion engine, has multiple guide blades arranged in flow channel in periphery direction

The spin generator (4) has multiple guide blades (9) arranged in a flow channel (8) in periphery direction in distributed manner. The guide blades have an in-flow sided rigid blade section (15) and an out-flow sided elastically deformable blade section (16). The rigid blade section is connected firmly with a wall limiting the flowing channel laterally. The flexible blade section is mounted at the assigned rigid blade section, and is coupled with an adjusting unit for installing the downstream flow angle.

Rotor for loading device, particularly for supercharger of internal combustion engine, particularly of motor vehicle, has turbine wheel, compressor wheel and shaft connecting turbine wheel and compressor wheel in torque-proof manner

The rotor (1) has a turbine wheel (3), a compressor wheel (5) and a shaft (4) connecting the turbine wheel and the compressor wheel in a torque-proof manner. A rotor unit (2) comprising the turbine wheel, the compressor wheel and the shaft is made of a piece in an integral manner. The rotor unit is made of metal, a metal alloy or ceramic. Independent claims are also included for the following: (1) a loading device with a radial bearing unit; and (2) a method for manufacturing a rotor.

Buchsenelement zur Lagerung einer Stellwelle einer Wastegate-Einrichtung oder einer variablen Turbinen-Geometrie

Die Erfindung betrifft ein Buchsenelement (1) zur Aufnahme eine Stellwelle einer Wastegate-Einrichtung oder einer variablen Turbinen-Geometrie, mit einem im Wesentlichen hülsenartig ausgebildeten Buchsenkörper (2), wobei der Buchsenkörper (2) ein Buchsenmaterial mit einem Chromanteil von wenigstens 8 Gew.-% aufweist.

Piston for an internal combustion engine comprises a base, a ring, a piston shaft, and a recess for a piston bolt

Piston (1) comprises a base (2), a ring (7), a piston shaft (8), and a recess (4) for a piston bolt (5). The piston base and the recess are made from an alloy based on the system TiAl, especially based on the intermetallic phase gamma-TiAl, and the ring and the piston shaft are made from a different material. The base and the ring are connected by friction welding.

Turbine, particularly for supercharger, has shaft and crosswise press connected turbine wheel, where turbine wheel has smaller thermal expansion coefficient than shaft

The turbine has a shaft (2) and a crosswise press connected turbine wheel (1). The turbine wheel has a smaller thermal expansion coefficient than the shaft. The thermal expansion coefficient of the shaft lies between the 1.5 times and two times of thermal expansion coefficient of the turbine wheel. The shaft exists from a metallic material and the turbine wheel exists from a ceramic material and titanium aluminide.

Verfahren zur Herstellung eines Konturspalts sowie Strömungsmaschine mit einem Konturspalt

Die Erfindung betrifft ein Verfahren zur Erzeugung eines Konturspalts zwischen einem Rotor (12, 18) und einem Stator (19) einer Strömungsmaschine (11, 17), wobei eine erste Strömungsmaschine (11) eine zweite Strömungsmaschine (17) über eine gemeinsame Welle (13) antreibt und die Welle (13) von einem Lager (14) in einem Lagergehäuse (15) gelagert wird. Eine einfache und zuverlässige Einstellung des Konturspalts gelingt, wenn der Konturspalt zwischen einer Konturfläche (20) des Rotors (12) und einer Kontrufläche (21) eines diesem zugeordneten Maschinengehäuses (19) mittels Einschleifen der Konturflächen (20, 21) aufeinander unter Ausnutzung eines Axialspiels des Lagers (14) gebildet wird.

Production of a welding joint of a shaft with a turbine wheel of an exhaust gas turbocharger comprises joining the shaft with the turbine wheel and surface treating the sealed region of the shaft in the same step

Production of a welding joint of a shaft with a turbine wheel of an exhaust gas turbocharger comprises joining the shaft with the turbine wheel and surface treating the sealed region of the shaft in the same step. An independent claim is also included for an exhaust gas turbocharger for an internal combustion engine.

Method of manufacturing a lightweight valve

A method for manufacturing a lightweight valve is provided. The lightweight valve includes a valve stem, a hollow valve cone and a valve disk closing the valve cone, the valve stem being provided with a hollow space at an end facing the valve disk, the valve disk also having a force transmission element extending through the hollow valve cone into the stem hollow space. The method includes producing a first one-piece component forming the valve disk with the force transmission element by casting, forming and/or a powder metallurgy method, producing a second component forming the valve stem and the valve cone and joining the first and second components together and connecting them by a material, non-positive and/or positive connection.

Compressor and turbine wheel for a secondary air feed device

In a compressor and turbine wheel for a secondary air feed device formed as a single component, a rotor which includes a center disc structure consisting of at least two discs of different materials is provided at one side with compressor blades and on the opposite side with turbine blades, and the discs consist of an alloy based on Al, Mg, Ti, Fe, or Ni and are preferably arranged in axially spaced relationship with a disc carrier of a plastic material disposed in the space between the two bladed discs.

Lightweight valve

A lightweight valve ( 1 ), in particular for internal combustion engines, and a method for manufacturing the lightweight valve ( 1 ) are provided. The valve comprises a valve stem ( 3 ), a hollow valve cone ( 7 ) and a valve disk ( 13 ), the valve cone ( 7 ) and the valve disk ( 13 ) together forming a hollow space. The valve disk ( 13 ) is provided with a gripping receiver ( 23 ) for the valve stem ( 3 ).

Composite lightweight valve for internal combustion engines

In a composite lightweight valve for internal combustion engines having a solid valve head provided with a center opening and a valve stem received in the center opening of the valve head in a positively locking manner, the valve components are permanently joined to one another by hot upsetting so as to be capable of withstanding the thermal and mechanical effective during engine operation.

Compressor wheel

A compressor wheel for an internal combustion engine may include a plurality of blades which in a circumferential direction of the wheel are spaced from one another. The plurality of blades may respectively include an inflow edge which during operation are subject to an inflow of a compressible fluid substantially axially to the wheel axis. The plurality of blades may include a surface layer of locally distinct materials to adapt to locally distinct loads during operation.

Multi-piece valve for reciprocating piston engines

The invention relates to a multi-piece valve for reciprocating piston engines in which the valve stem is connected to the valve head in a manner resistant to both tension and compression. In the area of a center through-opening the valve head has an annular bearing surface for a stem-side flange. In addition, the center opening widens on the combustion chamber-side of the valve head, the head-side end of the valve stem being plastically expanded so that it fills this enlargement, forming a positive interlock. In order to improve the service life of the connection between valve head and valve stem, according to the invention the combustion chamber-side enlargement of the center opening and accordingly also the conformed, end-side expansion of the valve stem are of non-circular design so that a positively interlocking torsionally fixed connection is produced between the valve stem and the valve head.

Air gap insulated exhaust manifold assembly for an internal combustion engine and a method of making same

An air gap insulated exhaust manifold for an internal combustion engine of a motor vehicle that has a catalytic converter. The exhaust manifold includes an inner pipe and an outer pipe with a connecting flange on the cylinder head side of the outer pipe. The outer pipe encloses the inner pipe and is spaced therefrom at a distance. A pipe end of the inner pipe protrudes in a guided manner into the cylinder head and only the outer pipe is fastenable to the cylinder head by way of the connecting flange.

Secondary air deliver device for an internal combustion engine

In a secondary air delivery device for an internal combustion engine comprising a secondary air charger with a compressor and a turbine which is driven by the vacuum generated in the engine intake duct and which drives the compressor that delivers secondary air to the engine exhaust duct, wherein the engine intake air duct includes an air filter for filtering the air supplied to the engine, a separate air filter structure is provided for filtering the air supplied to the compressor and to the turbine which air filter structure is accommodated in the housing of the secondary air charger.

Compressor wheel

A compressor wheel of the present invention comprises a substrate made of aluminum and light metal, and the coated corrosion-resistant surfaces of blades.

ROTOR FOR A CHARGING DEVICE

A rotor for a charging device may include a shaft, a turbine wheel and a compressor wheel. The turbine wheel may be connected to the shaft. The rotor may also include at least one of a metal or ceramic adapter connected to the turbine wheel or the shaft via an infiltration process.

High-speed impeller

The invention relates to a high-speed impeller for delivering gaseous or liquid media, for example as a compressor wheel for an exhaust-gas turbocharger. The high-speed impeller has a reinforcing core structure and an outer functional section. The invention is distinguished by the fact that reinforcing sleeves are pushed concentrically over one another for producing the core structure, in which case the length of the respective reinforcing sleeves varies. Furthermore, the functional section is cast onto the core structure.

Lightweight valve

A lightweight valve ( 1 ) for internal combustion engines is provided, which comprises a valve stem ( 3 ), a hollow valve cone ( 7 ) and a valve disk ( 9 ) closing the valve cone ( 7 ). In this connection, the valve stem ( 3 ) is provided with a hollow space ( 5 ) at its end facing the valve disk ( 9 ). The lightweight valve ( 1 ) is characterized by at least one force transmission element ( 19 ) which is provided on the valve disk ( 9 ) and extends through the hollow valve cone ( 7 ) into the stem hollow space ( 5 ).

Air supply device for an internal combustion engine

In a secondary air supply device comprising a turbine and a compressor with turbine and compressor wheels having blades which are covered by wheel covers and an air filter structure disposed between the turbine and compressor wheels, so that air is supplied to the compressor and to the turbine from a common filter structure disposed between the compressor and the turbine wheels.

TURBINE HOUSING FOR AN EXHAUST GAS TURBOCHARGER

A turbine housing for an exhaust gas turbocharger may include a wastegate valve that may have at least two apertures. A first aperture may be configured to receive a wastegate shaft and a second aperture may be configured as an inlet to a bypass channel. An insert may include a valve seat for the wastegate valve and a bearing bush for mounting the wastegate shaft. The valve seat may be mounted by a matching valve disc. The valve seat may cover the second aperture and the bearing bush may cover the first aperture in an installed state of the insert. 120.-. (canceled)21. A turbine housing for an exhaust gas turbocharger , comprising:a wastegate valve including at least two apertures, a first aperture configured to receive a wastegate shaft and a second aperture configured as an inlet to a bypass channel;an insert including a valve seat for the wastegate valve and a bearing bush for mounting the wastegate shaft, wherein the valve seat is mounted by a matching valve disc;wherein the valve seat covers the second aperture and the bearing bush covers the first aperture in an installed state of the insert.22. The turbine housing according to claim 21 , wherein at least one of the turbine housing is composed of at least two sheet metal parts and the turbine housing is composed of an aluminum casting.23. The turbine housing according to claim 22 , wherein the insert includes at least one of a greater wall thickness and a greater strength than the at least two sheet metal parts.24. The turbine housing according to claim 21 , wherein the insert is configured as a shaped sheet metal part.25. The turbine housing according to claim 24 , wherein the insert is connected to the turbine housing via being at least one of screwed claim 24 , soldered claim 24 , welded and adhered.26. The turbine housing according to claim 21 , wherein the insert is configured as a shaped metal angle having a first leg on one end and a second leg on another end claim 21 , wherein the valve seat is ...

Secondary air delivery device for an internal combustion engine

The invention relates to a secondary air delivery device, comprising a secondary air charger (14) with a compressor (15) and a turbine (16). According to said invention, the turbine (16) is driven by means of the partial vacuum, prevailing in an intake duct (5) of the internal combustion engine, and, in turn, drives the compressor (15) which delivers secondary air into an exhaust area (12) of the internal combustion engine, whereby the air, required by the compressor (15) and the turbine (16), is supplied through a common air filter (45). Said secondary air delivery device is provided for internal combustion engines, wherein secondary air is supplied to the exhaust area, in particular, during the engine start phase.

Turbine with a turbine wheel for an exhaust gas turbocharger of an internal combustion engine and exhaust gas turbocharger for an internal combustion engine

The invention relates to a turbine with a turbine wheel for an exhaust gas turbocharger of an internal combustion engine, which comprises a hub, provided with turbine wheel blades and auxiliary blades, whereby said auxiliary blades are arranged on the hub in exhaust channels, delimited by two turbine wheel blades. According to said invention, the dimensions of the auxiliary blades (20) are fixed, whereby the ratio between a throughput parameter of the turbine wheel blades (6) and a throughput parameter of the auxiliary blades (20) is higher than 15. Said invention is mainly provided for exhaust gas turbochargers in the automotive industry.

ISOLATED EXHAUST MANIFOLD BY AN AIR SLOT FOR AN INTERNAL COMBUSTION ENGINE

ISOLATED EXHAUST MANIFOLD BY AN AIR SLOT FOR AN INTERNAL COMBUSTION ENGINE

Turbocharger rotor

Die vorliegende Erfindung betrifft einen Rotor (1) für eine Ladeeinrichtung, insbesondere für einen Abgasturbolader, mit einer ein Turbinenrad (2) und ein Verdichterrad tragenden Welle (3). Erfindungswesentlich ist dabei, dass zur Anbindung insbesondere des Turbinenrades (2) an die Welle (3) zumindest zwischen diesem und der Welle (3) wenigstens ein poröses metallisches oder keramisches Zwischenstück (4) vorgesehen ist, das über einen Infiltrationsprozess mit dem Turbinenrad (2) und/oder der Welle (3) verbunden ist.

Lightweight valve

A lightweight valve ( 1 ) for internal combustion engines is provided, which comprises a valve stem ( 3 ), a hollow valve cone ( 7 ) and a valve disk ( 9 ) closing the valve cone ( 7 ). In this connection, the valve stem ( 3 ) is provided with a hollow space ( 5 ) at its end facing the valve disk ( 9 ). The lightweight valve ( 1 ) is characterized by at least one force transmission element ( 19 ) which is provided on the valve disk ( 9 ) and extends through the hollow valve cone ( 7 ) into the stem hollow space ( 5 ).

Exhaust Gas Turbo Charger For Internal Combustion Engine

In an exhaust gas turbocharger for an internal combustion engine, with a turbine wheel arranged in the exhaust gas stream of the engine and including a heat-resistant light metal alloy, with a compressor wheel arranged in the intake air stream of the engine, with a shaft including steel, the compressor wheel being seated on the shaft and the turbine wheel being connected to the shaft by welding, and with a mounting for the shaft, a hub adapted to the shaft diameter is formed on the turbine wheel, the connection point between the hub of the turbine wheel and the shaft being arranged in the vicinity of the mounting.

Multi-piece valve for internal combustion piston engines

The invention relates to a multi-piece valve (1) for internal combustion piston engines, wherein the valve head (3) is connected to the valve stem (2) in such a way that it is traction and pressure resistant. The valve head (3) has an annular bearing surface (5) for a stem-sided shoulder in the region of a continuous center opening (4). The center opening (4) is enlarged on the combustion chamber side (10) of the valve head. The head-side end (13) of the valve stem (2) is plastically enlarged in such a way that said enlargement (6) is filled in a positive fit. In order to increase the service life of the connection between the valve head (3) and the valve stem, the combustion chamber side enlargement (6) of the center opening (4) and the appropriately conformed end-side enlargement of the valve stem (2) are embodied in such a way that they are non-circular, thereby resulting in positive-fit torsional fixing between the valve stem (2) and the valve head (4).

Turbine housing and method for producing a turbine housing

The invention relates to a turbine housing, especially for an exhaust gas turbocharger of an internal combustion engine, comprising an exhaust gas conducting section (10) which has at least one spiral channel (12a, 12b) that can be coupled to an exhaust path of an exhaust gas system and a receiving compartment (14) for a turbine wheel arranged downstream of the at least one spiral channel (12a, 12b), at least one first and one second partial housing (16a, 16b) being provided. Said partial housings comprise complementary wall sections of the at least one spiral channel (12a) and are interconnected while defining at least one spiral channel (12a). The invention further relates to an exhaust gas turbocharger having a turbine housing and to a method for producing a turbine housing.

Corps métallique amortisseur de chocs et de sollicitations alternant périodiquement.

Le matériau déterminant pour l'amortissement de ce corps est un alliage à mémoire de forme. Un pied amortisseur (2) est placé entre une machine (1) et le sol d'un hall d'usine et comprend un corps amortisseur (3) placé dans une cloche (4) au-dessus d'une semelle (6). L'alliage formant le corps (3) a été choisi de manière que sa structure soit austénitique à la température de service. La précontrainte mécanique imposée au corps (3) est si élevée que la plage de travail d'amortissement de ce corps se trouve dans le domaine de l'allongement pseudo-élastique. Le corps peut être fritté pour permettre le libre mouvement relatif des particules aux joints de grains. Applicable notamment à l'amortissement de vibrations de machines.

Metall-keramik-verbundwerkstoff

Die Erfindung betrifft einen Metall-Keramik-Verbundwerkstoff mit einer keramischen Matrix und wenigstens einer metallischen Phase, die voneinander durchdrungen sind und die zusammen einen nahezu dichten Körper bilden und an Grenzflächen miteinander in Berührung stehen. Der Verbundwerkstoff zeichnet sich dadurch aus, dass die Grenzflächen nadelförmig ausgebildet sind und die metallischen Phasen und die keramische Matrix durch die nadelförmigen Grenzflächen verzahnt sind. Ferner ist der Verbundwerkstoff von röhrenförmigen Kanälen durchzogen, die durch wenigstens eine metallische Phase gefüllt sind.

Metall-keramik-verbundwerkstoff

Die Erfindung betrifft einen Metall-Keramik-Verbundwerkstoff mit einer keramischen Matrix und wenigstens einer metallischen Phase, die voneinander durchdrungen sind und die zusammen einen nahezu dichten Körper bilden und an Grenzflächen miteinander in Berührung stehen. Der Verbundwerkstoff zeichnet sich dadurch aus, dass die Grenzflächen nadelförmig ausgebildet sind und die metallischen Phasen und die keramische Matrix durch die nadelförmigen Grenzflächen verzahnt sind. Ferner ist der Verbundwerkstoff von röhrenförmigen Kanälen durchzogen, die durch wenigstens eine metallische Phase gefüllt sind.