Impeller and rotary machine
AssigneeMitsubishi Heavy Industries Compressor Corporation
InventorsHideki Nagao, Akihiro Nakaniwa
Life of this patent
Estimating the term…
Abstract
An impeller includes a disk that has a disk shape centered on an axis, a cover that is disposed to be separated from the disk in an axial direction in which the axis extends, a plurality of blades that connect the disk and the cover to each other and are disposed at intervals in a circumferential direction around the axis, and a connection member that is disposed to be separated from the plurality of blades in the axial direction and connects the disk and the cover to each other. A plurality of the connection members are disposed at intervals in the circumferential direction at positions near an inlet of an impeller flow path with respect to front edges of the blades positioned at positions near the inlet, the impeller flow path being formed between the disk and the cover.
Claims6
An impeller comprising:
- a disk that has a disk shape centered on an axis;
- a cover that is disposed to be separated from the disk in an axial direction in which the axis extends;
- blades that connect the disk and the cover to each other and are disposed at intervals in a circumferential direction around the axis;
- and
- connection members that are disposed separate from the blades in the axial direction and connect the disk and the cover to each other, wherein
- the connection members are disposed at intervals in the circumferential direction at positions near an inlet of an impeller flow path with respect to front edges of the blades positioned at positions near the inlet, the impeller flow path being formed between the disk and the cover,
- a number of the connection members is equal to a number of the blades,
- each of the connection members is disposed at a same position as a front edge of each of the blades in the circumferential direction, and
- a shape of a section orthogonal to an extending direction of each of the connection members is circular.
Dependencies are inferred from the claim text.