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公开(公告)号：US20230358339A1
公开(公告)日：2023-11-09
申请号：US18222133
申请日：2023-07-14
摘要： A pipe supporting structure includes: a plate-like member being into contact with an outside surface of a pipe; a tube-like member having a tubular shape and configured to support the plate-like member; and a base configured to support the tube-like member, wherein the plate-like member includes a supported portion supported by the tube-like member and an inner side portion surrounded by the supported portion, and the inner side portion has a smaller heat capacity per unit volume than the supported portion.
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公开(公告)号：US20210379883A1
公开(公告)日：2021-12-09
申请号：US17411407
申请日：2021-08-25
摘要： A method for producing a negative or near-zero thermal expansion member using a first material and a second material having a smaller linear expansion coefficient than the first material, the method including: a preparation step (S1) for preparing a laminate in which a plurality of first plate materials comprising the first material and a plurality of second plate materials comprising the second material are alternately laminated; and an in-plane processing step (S2) for performing perforation processing on the second plate materials from a plurality of directions in an in-plane direction including a plane orthogonal to a lamination direction of the first plate materials and the second plate materials.
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公开(公告)号：US20220243817A1
公开(公告)日：2022-08-04
申请号：US16982238
申请日：2019-09-06
IPC分类号： F16J15/08
摘要： A sealing mechanism including a first seal member, a second seal member arranged so as to face the first seal member, and a deformed nucleus member arranged in a space formed at least partially between the first seal member and the second seal member, and becoming a nucleus of deformation in the sealing mechanism. The deformed nucleus member is configured by a combination of rod-like members and plate-like members respectively formed from a plurality of materials having different linear expansion coefficients, and is fixed to each of the first seal member and the seal member. The deformed nucleus member contracts in at least one direction on a cross-section of the seal groove, along with an increase in temperature of the deformed nucleus member. The first seal member and the second seal member respectively have abutment surfaces abutting on an inner surface of the seal groove or the facing surfaces.
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公开(公告)号：US20220106882A1
公开(公告)日：2022-04-07
申请号：US17474788
申请日：2021-09-14
IPC分类号： F01D5/14
摘要： A rotor blade is a rotor blade to be attached to a rotor shaft rotatable about an axis, and includes a blade body extending in a radial direction with respect to the axis and having a blade-shaped cross-section orthogonal to the radial direction; a fillet portion provided on a radial outer side of the blade body and having a hollow portion formed therein; a shroud provided on a radial outer side of the fillet portion and extending in a circumferential direction; and a seal fin projecting from the shroud to an outer circumferential side and extending in a direction intersecting the blade body when viewed from the radial direction. A wall thickness on a suction side of the fillet portion is greater than a wall thickness on a pressure side of the fillet portion on a leading edge side of the blade body as demarcated by an intersection portion between the blade body and the seal fin serving as a boundary.
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公开(公告)号：US20210215067A1
公开(公告)日：2021-07-15
申请号：US17117938
申请日：2020-12-10
摘要： A rotor blade attached to a rotor shaft rotatable around an axis includes: a blade body extending in a radial direction with respect to the axis and having a blade-shaped cross section orthogonal to the radial direction; a shroud provided at an end of the blade body on a radial outer side, and a seal fin protruding from the shroud toward an outer circumferential side, and the seal fin includes: a seal fin body extending in a plate shape in a circumferential direction; and a reinforcing portion provided on at least one plate surface of the seal fin body to increase a thickness of the seal fin, the reinforcing portion gradually increasing in dimension in the radial direction toward the center in the circumferential direction.
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公开(公告)号：US20210102467A1
公开(公告)日：2021-04-08
申请号：US16787210
申请日：2020-02-11
发明人： Tomohiro ISHIDA , Toshifumi KANNO , Hikaru KUROSAKI , Eisaku ITO
摘要： A rotor blade includes a blade body which has an airfoil shape and a shroud 57 which is formed in an end portion of the blade body. The shroud includes a shroud cover and a seal fin which protrudes from the shroud cover toward a radial outside and extends in a direction having a direction component in a circumferential direction. A front end of the seal fin extends in the circumferential direction and a base end of the seal fin extends in a direction having a direction component in the circumferential direction. A part of the seal fin in the circumferential direction forms a shift portion. An axial center position of a base end of the shift portion is different from an axial center position of a front end of the shift portion in the axial direction.
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公开(公告)号：US20210010485A1
公开(公告)日：2021-01-14
申请号：US16787237
申请日：2020-02-11
发明人： Tomohiro ISHIDA , Toshifumi KANNO , Hikaru KUROSAKI , Eisaku ITO
摘要： A rotor blade includes a shroud cover which is formed at a first end portion of a blade body. The shroud cover extends in a first direction separating away from a camber line of the blade body. The shroud cover includes a gas path surface exposed toward a second side in the blade height direction and a back surface exposed toward a first side in a blade height direction. The gas path surface includes a fillet surface which gradually extends toward the first side as it goes from each of a pressure surface and a suction surface of the blade body toward the first direction in a cross-section orthogonal to the camber line. The back surface is opposite to the gas path surface, and includes a recessed surface which extends so as to be recessed toward the second side along the fillet surface in the cross-section.
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