RADIAL TURBINE
1 Assignment
0 Petitions
Accused Products
Abstract
A radial turbine comprises a plurality of nozzle vanes disposed along a circumferential direction inside a spiral scroll and configured to regulate a flow of a working gas from the scroll to a rotor blade, wherein each of the nozzle vane includes a leading edge bulging portion on both end portions in a width direction of an inlet leading edge portion, the leading edge bulging portion being bulged toward a pressure face side of the nozzle vane relative to a central portion, so that a vane angle is configured to correspond with an inflow angle of the working gas to be flown into the nozzle vane, and wherein each of the nozzle vane includes a trailing edge bulging portion on both end portions in a width direction of an outlet trailing edge portion, the trailing edge bulging portion being bulged toward the pressure face side relative to a central portion, so that an outflow angle of the working gas from the outlet trailing edge of the nozzle vane becomes uniform.
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Citations
14 Claims
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1-7. -7. (canceled)
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8. A radial turbine comprising a plurality of nozzle vanes disposed along a circumferential direction inside a spiral scroll and configured to regulate a flow of a working gas from the scroll to a rotor blade of a turbine rotor, said nozzle vane being configured to be rotatable around a support axis mounted to a body of the nozzle vane as a rotational axis,
wherein each of the nozzle vane includes a leading edge bulging portion on both end portions in a width direction of an inlet leading edge portion, the leading edge bulging portion being bulged toward a pressure face side of the nozzle vane relative to a central portion, so that a vane angle of the inlet leading edge portion is configured to correspond with an inflow angle of the working gas to be flown into the nozzle vane across an entire area in the width direction, and wherein each of the nozzle vane includes a trailing edge bulging portion on both end portions in a width direction of a trailing edge portion, the trailing edge bulging portion being bulged toward the pressure face side relative to a central portion, and an area of a region where the leading edge bulging portion is formed and an area of a region where the trailing edge bulging portion is formed are each set to be within a range of from 15 to 20% relative to an entire width of the nozzle vane.
Specification