Abstract: A vortex flow pickup serves for measuring mass flow, volume flow or flow velocity of a fluid which is flowing in a measuring tube having a tube wall, and has a temperature sensor arranged in such a way that the vortex flow pickup may also be used together with those fluids which corrode the temperature sensor. A bluff body which produces vortices, and consequently pressure fluctuations, is arranged in the measuring tube. A vortex sensor responding to these pressure fluctuations is fitted downstream of the bluff body in a bore of the tube wall of the measuring tube. The vortex sensor comprises a diaphragm which covers the bore and on which a sensor vane protruding into the fluid is fastened. The temperature sensor is fixed on the bottom of a blind hole of the sensor vane. On the side of the diaphragm lying opposite the sensor vane, a sensor element is fastened. The temperature sensor may alternatively be arranged in a longitudinal bore of the bluff body.

Abstract: The vortex flow sensor is designed to measure the mass flow rate, the volumetric flow rate, or the flow velocity of a fluid flowing in a flow tube having a tube wall, and has two temperature sensors arranged in such a way that the vortex flow sensor may also be used with fluids which would corrode the temperature sensors. A bluff body in the flow tube sheds vortices and thus causes pressure fluctuations. A vortex sensor device responsive thereto is fitted downstream of the bluff body in a hole provided in the wall of the flow tube. The vortex sensor device comprises a sensor vane extending into the fluid. The temperature sensors are disposed in a blind hole of the sensor vane. Alternatively, the temperature sensor may be disposed in blind hole of the bluff body.

Abstract: A method wherein vortices are produced in a flowing fluid by means of a bluff body and the repetition frequency with which the vortices are produced is determined. The repetition frequency is used to determine a flow rate measurement value, which represents a volume flow or a flow velocity. Additionally, pressures p1 and p2 acting in the flowing fluid at two measurement points separated from one another in the flow direction are registered. At least one of these pressures changes at least as a function of the repetition frequency. The registered pressures p1, p2 are used to produce a pressure measurement value, which represents an average dynamic pressure acting in time average at least partly in the flow direction. The pressure measurement value and the flow rate measurement value are used to determine a mass flow rate value for the fluid.

Abstract: The vortex flow sensor is designed to measure the mass flow rate, the volumetric flow rate, or the flow velocity of a fluid flowing in a flow tube having a tube wall, and has two temperature sensors arranged in such a way that the vortex flow sensor may also be used with fluids which would corrode the temperature sensors. A bluff body in the flow tube sheds vortices and thus causes pressure fluctuations. A vortex sensor device responsive thereto is fitted downstream of the bluff body in a hole provided in the wall of the flow tube. The vortex sensor device comprises a sensor vane extending into the fluid. The temperature sensors are disposed in a blind hole of the sensor vane. Alternatively, the temperature sensor may be disposed in blind hole of the bluff body.

Abstract: The vortex flow pickup (1) serves for measuring the mass flow, the volume flow or the flow velocity of a fluid which is flowing in a measuring tube (2) having a tube wall (21), and has a temperature sensor (34) arranged in such a way that the vortex flow pickup may also be used together with those fluids which corrode the temperature sensor. A bluff body (4) which produces vortices, and consequently pressure fluctuations, is arranged in the measuring tube. A vortex sensor (3) responding to these pressure fluctuations is fitted downstream of the bluff body in a bore (22) of the tube wall (21) of the measuring tube. The vortex sensor (3) comprises a diaphragm (33) which covers the bore (22) and on which a sensor vane (31) protruding into the fluid is fastened. The temperature sensor (34) is fixed on the bottom of a blind hole (314) of the sensor vane. On the side of the diaphragm lying opposite the sensor vane, a sensor element (35) is fastened.

Abstract: The invention relates to an impact flow for wall sections including a plurality of impact openings which are arranged on a plane in a flat or curved support. The support is fitted it a distance from the wall section, and the impact surface of the wall section that is to be cooled is configured as a bulged relief. The bulge elements are arranged around the impact surface of the impact beam. The surfaces of the bulge elements facing the impact beam include two curves which blend into one another.

Abstract: An impingement flow for wall parts (3) is distinguished by a plurality of impingement orifices (2) which are arranged areally in a plane or curved carrier (1), the carrier being arranged at a distance from the wall part, and the impingement surface, to be cooled, of the wall part (3) being designed as a relief. That side of the wall part (3) which faces the impingement jet is provided with a number of troughs (4) arranged next to one another, at least one impingement jet per trough (4) being provided. That side of the wall part (3) which is remote from the impingement jet is of at least roughly plane design. The troughs (4) have the shape of a circle segment or of a base area related thereto.

Abstract: In an arrangement for sealing combustion-chamber bricks (8) which are force-cooled in a convective manner, the bricks (8) being arranged in at least two brick rows (6) in accordance with of an increasing combustion-space diameter and being put into supporting casings (7), and the cooling medium (12) flowing between brick (8) and supporting casing (7), and a gap (9) being present between the supporting casing (7) of the preceding brick row (6) and the respectively following brick row (6), which gap (9) is sealed by means of a seal (10), a plurality of springs (11) are firmly anchored to the supporting casing (7) in a distributed manner over the periphery, which springs (11) are connected to the seal (10) and press the seal (10) into the gap (9) between supporting casing (7) and brick (8) at least during the operation of the combustion chamber. The sealing effect is thereby increased without thermal stresses being introduced.