Blade member and structural member
AssigneeNikon Corporation
InventorsMasayuki Shiraishi, Takahiro Kurashima, Baku Ogasawara
Life of this patent
Estimating the term…
Abstract
A blade member on a surface of which a groove structure is formed, wherein the groove structure includes a plurality of first groove structures, a plurality of second groove structures, and a third groove structure, the plurality of first groove structures are formed to extend in a first direction, the plurality of second groove structures are formed to extend in a second direction that is different from the first direction, the third groove structure extends along a third direction that is different from the first and second directions, and is formed between one first groove structure and one second groove structure.
Claims14
A turbine blade comprising:
- a surface;
- and
- a groove structure that is formed on the surface, wherein
- the groove structure includes a plurality of first groove structures, a plurality of second groove structures, and a third groove structure,
- the plurality of first groove structures extend linearly in a first direction,
- the plurality of second groove structures extend linearly in a second direction that is different from the first direction,
- the third groove structure extends linearly along a third direction that is different from the first and second directions, and is directly connected to (i) one first groove structure of the plurality of first groove structures and (ii) one second groove structure of the plurality of second groove structures,
- the first direction is substantially the same as a flow direction of fluid on a first part of the surface, the plurality of first groove structures being formed on the first part of the surface, and
- the second direction is substantially the same as a flow direction of fluid on a second part of the surface, the plurality of second groove structures being formed on the second part of the surface.
A turbine blade comprising:
- a surface;
- and
- a groove structure that is formed on the surface, wherein
- the groove structure includes a plurality of first groove structures, a plurality of second groove structures, and a third groove structure,
- the plurality of first groove structures extend linearly in a first direction,
- the plurality of second groove structures extend linearly in a second direction that is different from the first direction,
- the third groove structure extends linearly along a third direction that is different from the first and second directions, and is directly connected to (i) one first groove structure of the plurality of first groove structures and (ii) one second groove structure of the plurality of second groove structures, and
- an arrangement pitch of the plurality of first groove structures is different from an arrangement pitch of the plurality of second groove structures.
A turbine blade comprising:
- a surface;
- and
- a groove structure that is formed on the surface, wherein
- the groove structure includes a plurality of first groove structures, a plurality of second groove structures, and a plurality of third groove structures,
- the plurality of first groove structures extend linearly in a first direction,
- the plurality of second groove structures extend linearly in a second direction that is different from the first direction,
- at least one of the plurality of third groove structures extends linearly along a third direction that is different from the first and second directions, and is directly connected to (i) one first groove structure of the plurality of first groove structures and (ii) one second groove structure of the plurality of second groove structures, and
- an arrangement pitch of the plurality of third groove structures varies depending on a position thereof.
Dependencies are inferred from the claim text.