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US 12,037,928 B2Granted
Radial turbine nozzle and method for assembling the same
AssigneeHonda Motor Co., Ltd.
InventorsKoji Taima, Satoshi Ueguchi, Daisuke Higa
Life of this patent
Estimating the term…
Abstract
In a radial turbine nozzle and its assembling method, a first flange member of a first divided annular portion is inserted into a first outer side groove of a first ring. A second flange member of a second divided annular portion is inserted into a second outer side groove of a second ring. A plurality of segments are connected together in a circumferential direction, by overlapping first divided surfaces of two of the segments that are adjacent in a circumferential direction of a radial turbine, and overlapping second divided surfaces of the two of the segments.
Claims10
A radial turbine nozzle surrounding a radial turbine, the radial turbine nozzle comprising:
- an annular shaped nozzle main body including a plurality of blades arranged at a predetermined interval in a circumferential direction of the radial turbine, a first end wall connected to one end part of each of the plurality of blades in an axial direction of the radial turbine, and a second end wall connected to another end part of each of the plurality of blades in the axial direction;
- a first ring surrounding the first end wall;
- and
- a second ring surrounding the second end wall,
- wherein the nozzle main body includes a plurality of segments connected in the circumferential direction;
- the first ring includes a first outer side groove that is recessed toward an outer side of the radial turbine in a radial direction, and extends in the circumferential direction;
- the second ring includes a second outer side groove that is recessed toward the outer side in the radial direction, and extends in the circumferential direction,
- each of the plurality of segments includes:
- a first divided annular portion formed by dividing the first end wall at a plurality of first divided surfaces that are inclined with respect to the radial direction;
- and
- a second divided annular portion formed by dividing the second end wall at a plurality of second divided surfaces that are inclined with respect to the radial direction, and
- wherein an outer circumferential portion of the first divided annular portion includes a first flange member that projects toward the outer side in the radial direction, the first flange member being inserted into the first outer side groove;
- and
- an outer circumferential portion of the second divided annular portion includes a second flange member that projects toward the outer side in the radial direction, the second flange member being inserted into the second outer side groove.
11 more elements
A method of assembling a radial turbine nozzle surrounding a radial turbine, wherein the radial turbine nozzle comprises:
- an annular shaped nozzle main body including a plurality of blades arranged at a predetermined interval in a circumferential direction of the radial turbine, a first end wall connected to one end part of each of the plurality of blades in an axial direction of the radial turbine, and a second end wall connected to another end part of each of the plurality of blades in the axial direction;
- a first ring surrounding the first end wall;
- and
- a second ring surrounding the second end wall;
- the nozzle main body includes a plurality of segments connected in the circumferential direction;
- the first ring includes a first outer side groove that is recessed toward an outer side of the radial turbine in a radial direction, and extends in the circumferential direction;
- the second ring includes a second outer side groove that is recessed toward the outer side in the radial direction, and extends in the circumferential direction;
- each of the plurality of segments includes:
- a first divided annular portion formed by dividing the first end wall at a plurality of first divided surfaces that are inclined with respect to the radial direction;
- and
- a second divided annular portion formed by dividing the second end wall at a plurality of second divided surfaces that are inclined with respect to the radial direction;
- an outer circumferential portion of the first divided annular portion includes a first flange member that projects toward the outer side in the radial direction;
- and
- an outer circumferential portion of the second divided annular portion includes a second flange member that projects toward the outer side in the radial direction;
- the method of assembling the radial turbine nozzle comprising:
- arranging the first ring;
- inserting, in relation to each of the plurality of segments, a portion of the first flange member into the first outer side groove, and arranging two of the segments that are adjacent in the circumferential direction to be spaced apart from each other;
- inserting, in relation to each of the plurality of segments, a portion of the second flange member into the second outer side groove;
- and
- causing the plurality of segments to be connected together in the circumferential direction, by causing each of the plurality of segments to slide toward the outer side in the radial direction, and overlapping the first divided surfaces of two of the segments that are adjacent to each other in the circumferential direction, and together therewith, by overlapping the second divided surfaces of the two of the segments that are adjacent to each other in the circumferential direction.
17 more elements
Dependencies are inferred from the claim text.