公开(公告)号：US10307865B2

公开(公告)日：2019-06-04

申请号：US15111965

申请日：2015-01-13

申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.

发明人： Tadakazu Sakaguchi ,  Hirokazu Nishimura

IPC分类号： B23K33/00 ,  B23K26/20 ,  B23K26/282 ,  B23K26/08 ,  F16L13/02 ,  B23K101/06

摘要： A method of manufacturing a tube, and a tube, the method comprising the steps of: coupling in position a first tube body and a second tube body by inserting a first insert portion of a connecting pin into an end portion of a first hole of the first tube body and inserting a second insert portion into an end portion of a first hole of the second tube body; welding all around an outer circumferential portion of the coupled portion of the first tube body and the second tube body and all around an inner circumferential portion of the first holes in which the connecting pin is inserted; and removing the connecting pin remaining inside the first hole of the first tube body and the first hole of the second tube body.

公开(公告)号：US10710199B2

公开(公告)日：2020-07-14

申请号：US16387945

申请日：2019-04-18

申请人： MITSUBISHI HITACHI POWER SYSTEMS, LTD.

发明人： Tadakazu Sakaguchi ,  Hirokazu Nishimura

IPC分类号： B23K26/00 ,  B23K26/282 ,  F16L13/02 ,  B23K26/08 ,  B23K101/06

摘要： A method of manufacturing a tube, and a tube, the method comprising the steps of: coupling in position a first tube body and a second tube body by inserting a first insert portion of a connecting pin into an end portion of a first hole of the first tube body and inserting a second insert portion into an end portion of a first hole of the second tube body; welding all around an outer circumferential portion of the coupled portion of the first tube body and the second tube body and all around an inner circumferential portion of the first holes in which the connecting pin is inserted; and removing the connecting pin remaining inside the first hole of the first tube body and the first hole of the second tube body.

公开(公告)号：US10954791B2

公开(公告)日：2021-03-23

申请号：US16066431

申请日：2017-01-10

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Ryota Chaki ,  Tadakazu Sakaguchi

IPC分类号： F04D29/64 ,  B23P19/04 ,  F01D5/00 ,  F04D29/52 ,  F01D25/28 ,  F01D25/24 ,  F01D9/04 ,  F01D5/30

摘要： A blade removal device for removing a blade in a circumferential direction of a blade ring along a groove, the blade being engaged with the groove extending in the circumferential direction on an inner peripheral side of the blade ring, is provided with a towing part for towing the blade, a string member connecting the towing part and the blade, and a first turning part attached to the blade ring so as to be in contact with a portion of the string member between the towing part and the blade to change a direction of a towing force transmitted via the string member.

公开(公告)号：US10704394B2

公开(公告)日：2020-07-07

申请号：US15778522

申请日：2016-11-17

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Tadakazu Sakaguchi ,  Hiroshi Shimizu ,  Shinji Yoshida ,  Yoshio Fukui ,  Masamitsu Kuwabara

IPC分类号： F01D5/18 ,  F01D25/14 ,  F01D9/02 ,  F02C3/04 ,  F02C7/12

摘要： A flow passage forming plate includes a plate main body, a peripheral wall, and a ledge. The plate main body has a gas path surface facing a side of a gas flow passage, and an inner surface facing the opposite side from the gas path surface. The peripheral wall protrudes along a peripheral edge of the plate main body, from the inner surface toward an opposite-flow-passage side. The ledge protrudes along an inner wall surface of the peripheral wall, from the inner surface toward the opposite-flow-passage side. The ledge receives an impingement plate having a plurality of through-holes. The ledge is disposed only in a part of an inner wall surface of the peripheral wall.