Abstract: The invention relates to a chainwheel (1, 1?) for transferring a drive output from an input shaft, more particularly from a drum motor (800), onto a synthetic modular belt (900), a drum motor (800) for driving a synthetic modular belt, a semi-finished chainwheel product (10) for a chainwheel (1, 1?) and a method for producing a chainwheel (1, 1?). The chainwheel comprises at least one toothed ring and an outer ring (200, 200?) and an inner ring (300, 300?) adjoining the toothed ring, wherein the inner ring (300, 300?) and the outer ring (200, 200?) are connected to one another via bridges (410, 410?).

Abstract: The invention relates to a chainwheel (1, 1?) for transferring a drive output from an input shaft, more particularly from a drum motor (800), onto a synthetic modular belt (900), a drum motor (800) for driving a synthetic modular belt, a semi-finished chainwheel product (10) for a chainwheel (1, 1?) and a method for producing a chainwheel (1, 1?). The chainwheel comprises at least one toothed ring and an outer ring (200, 200?) and an inner ring (300, 300?) adjoining the toothed ring, wherein the inner ring (300, 300?) and the outer ring (200, 200?) are connected to one another via bridges (410, 410?).

Abstract: The invention relates to a conveyor roller for conveyor systems for conveying containers, pallets, piece goods, and the like. The invention further relates to a method for producing and balancing, in particular dynamic balancing, such a conveyor roller. The conveyor roller comprises a roller body having a roller axle, the outside circumferential surface thereof being a contact surface for conveyed goods or being wrapped about by conveyed goods, and a head element (100), an insertion section (110) thereof being inserted into a hollow end of the roller body, wherein a groove (200) is formed on an end face (120) of the head element (100) facing away from the insertion section (110), in order to receive at least one balancing weight (301-304).

Abstract: A motor-driven conveyor roller includes a cylindrical roller body extending along a longitudinal axis of rotation, an axle unit coaxially aligned with the roller body with respect to the longitudinal axis of rotation, a drive unit arranged in the roller body, which is coupled to the roller body and the axle unit to produce a rotational movement between the axle unit and the roller body about the longitudinal axis of rotation, and an end lid which closes the roller body at a first axial end and through which an axle section of the axle unit extends. The end lid has an outer wall formed of stainless steel and an inner wall cast on the outer wall and formed of a light metal.

Abstract: A motor-driven conveyor roller includes a cylindrical roller body extending along a longitudinal axis of rotation, an axle unit coaxially aligned with the roller body with respect to the longitudinal axis of rotation, a drive unit arranged in the roller body, which is coupled to the roller body and the axle unit to produce a rotational movement between the axle unit and the roller body about the longitudinal axis of rotation, and an end lid which closes the roller body at a first axial end and through which an axle section of the axle unit extends. The end lid has an outer wall formed of stainless steel and an inner wall cast on the outer wall and formed of a light metal.

Abstract: An apparatus is provided for a gas turbine engine. The gas turbine engine comprises a high pressure compressor, a single-stage high pressure turbine, a multi-stage low pressure turbine, and a reverse flow combustor unit. The reverse flow combustor comprises a combustor liner assembly, a combustor dome, and a plurality of straight-shafted fuel injectors. The combustor liner assembly includes an inner liner and an outer liner. The inner liner surrounds the single-stage high pressure turbine, and the outer liner is disposed radially outwardly of, and at least partially surrounding, the inner liner. The combustor dome assembly is coupled between the inner liner and the outer liner to define a combustion chamber therebetween. The plurality of straight-shafted fuel injectors are coupled to the combustor dome, with each fuel injector having at least an inlet, an outlet, and a linear fuel passageway extending therebetween.

Abstract: A retaining ring is provided for use in conjunction with a carburetor assembly having a flow passage therethrough for conducting a fuel-air mixture into a combustion chamber, the carburetor assembly comprising an air flow modifier and a fuel injector receiving element adjacent thereto. The retaining ring comprises a collar configured to engage the fuel injector receiving element so as to maintain its position adjacent the air flow modifier, and a retaining portion coupled to the collar and configured to engage the air flow modifier to secure the airflow modifier to the combustion chamber. The retaining portion cooperates with the collar to form an aperture through the retaining ring for receiving the carburetor assembly.

Abstract: A combustor includes two or more sets of effusion cooling holes that extend through the inner and outer liners. Each set of effusion cooling holes includes one or more initial rows of effusion cooling holes, one or more final rows of effusion cooling holes disposed downstream of the one or more initial rows, and a plurality of interposed rows of effusion cooling holes disposed between the initial and final rows. Each effusion cooling hole is disposed at a tangential angle relative to an axial line. The tangential angle of the effusion cooling holes in each set of effusion cooling holes gradually transitions from a substantially transverse tangential angle in each initial row to a substantially axial tangential angle in each final row.

Abstract: A system is provided for aerodynamically coupling air flow from a centrifugal compressor to an axial combustor. The system includes a diffuser, a deswirl assembly, combustor inner and outer annular liners, a combustor dome, and a curved annular plate. The diffuser has an inlet that communicates with the centrifugal compressor, an outlet, and a flow path that extends radially outward. The deswirl assembly has an inlet that communicates with the diffuser outlet to receive air flowing in a radially outward direction, an outlet, and a flow path configured to redirect the air in a radially inward and axial direction through the deswirl assembly outlet at an angle toward a longitudinal axis. The curved annular plate is coupled to combustor inner and outer annular liner upstream ends to form a combustor subplenum therebetween and has a first opening and a second opening formed therein, the first opening aligned with the deswirl assembly outlet to receive air discharged therefrom.

Abstract: A cooling scheme for a dome comprises an effusion array drilled directly through a single walled dome. In one embodiment, the layout of the holes comprises two regions, a region close to the fuel injector where the holes follow a tangential path around the injector, and a second region where the direction of the holes is radially outward from the injector axis. A film of cooling air may be applied on the interior side of the combustor dome via an air swirler, which projects air radially outward from the injector axis. The first series of cooling holes supplement this air supply so that cooling efficacy is extended along the dome surface and is directed in a counter-rotating manner with respect to the main air swirler. The second series of dome cooling holes infuse further cooling flux that reduces the temperature in the corner regions between fuel injectors.

Abstract: A dome for a combustion chamber may have a plurality of effusion holes therein to provide efficient cooling while preventing carbon formation on the dome and chamber walls of the combustion chamber. Conventional dome cooling designs, using dome louvers, for example, may become corroded and/or may allow for ingestion of carbon particles that may build up and eventually separate from the dome. Furthermore, the dome cooling design of the present invention allows for the use of a lower profile dome as compared with conventional domes, thereby maximizing liner volume in the constrained combustion envelope while reducing combustor case weight. Additionally, the dome effusion cooling design of the present invention requires the use of less thermal barrier coating, as compared to conventional designs, in order to minimize thermal variation within the dome and between the dome and the combustor wall. A method for uniformly cooling a dome of a combustion chamber of an engine is also disclosed.

Abstract: A variable penetration dilution jet array for a single can and scroll assembly includes a plurality of differentially sized dilution openings around the circumference of the combustor can. The alternating smaller and larger openings provide for circumferential and radial mixing uniformity with the smaller openings giving shallow penetration and the larger openings enabling deep core penetration. The larger openings provide dilution air to the hot gas flow core without the need for an increase in combustor pressure drop. The smaller openings provide a film cooling flow to the downstream scroll, reducing dedicated scroll cooling requirements.

Abstract: A transistor circuit comprising a first differential amplifier which is composed of a differential pair and a current mirror. The transistor circuit further comprises a second differential amplifier which measures a differential offset voltage in the first differential amplifier and reduces this offset voltage by means of common mode current feedback. The transistor circuit thus provides a stable amplifier having a high speed and a low offset voltage which can be used advantageously in a logic output buffer so that, for example, an ECL output buffer can be realized in CMOS.

Abstract: An adjusting device for the main shield of a grader in which two lifting cylinder, a sideways adjusting cylinder and two pivot arms interconnected by an arresting bridge for actuating the main shield are by the arresting bridge linked to a bridge frame of the grader which bridge frame has a rectangular cross section. Each of the two pivot arms are arranged for pivoting about two joints while one of the pivot arms has its free end provided with fulcrums arranged asymmetrically with regard to the vertical axis of symmetry for establishing linkage connection with one lifting cylinder and a sideways adjusting cylinder. The other one of the two pivot arms is at its free ends provided with a fulcrum for establishing linkage connection with the other lifting cylinder.