公开(公告)号：US10859092B2

公开(公告)日：2020-12-08

申请号：US16312570

申请日：2017-10-20

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Takeshi Sano ,  Masamichi Iino ,  Keiichi Meguro

IPC: F04D29/22 ,  F04D29/24 ,  F04D29/44

Abstract: An impeller includes a disk, a long blade that is disposed at an interval in a circumferential direction on a disk surface on a first side in an axial direction of the disk, and that reaches an outer peripheral edge of the disk, and a short blade that is disposed between the long blades adjacent to each other on the disk surface, and that reaches the outer peripheral edge. A circumferential length of the short blade gradually increases as the short blade faces outward in the radial direction, and a circumferential length of the long blade in the outer peripheral edge is smaller than the circumferential length of the short blade in the outer peripheral edge.

公开(公告)号：US10907668B2

公开(公告)日：2021-02-02

申请号：US15748365

申请日：2017-01-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Masamichi Iino ,  Shigeto Hirai ,  Taiki Asahara ,  Takafumi Ogino ,  Akira Kirita ,  Akihiro Toda ,  Hideyuki Sakata ,  Yutaka Tanaka ,  Setsuo Tokunaga ,  Takashi Nakahara ,  Takanori Okazaki

IPC: F15D1/00 ,  G21C15/18 ,  G21C15/243

Abstract: A flow damper including a cylindrical vortex chamber, a small flow-rate pipe connected to a peripheral plate of the vortex chamber along a tangential direction, a large flow-rate pipe connected to the peripheral plate with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outlet formed in a central part of the vortex chamber, and a pressure equalization pipe with respective ends being connected to the peripheral plate on opposite sides of the outlet and at positions closer to a connection portion between the small flow-rate pipe and the large flow-rate pipe than positions facing each other, putting the outlet therebetween. The pressure equalization pipe is arranged with at least a part thereof is located at a higher position than a top plate of the vortex chamber, and an outgassing hole is provided at an uppermost part of the pressure equalization pipe.

公开(公告)号：US20180218795A1

公开(公告)日：2018-08-02

申请号：US15748413

申请日：2017-01-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Hideyuki Sakata ,  Shigeto Hirai ,  Taiki Asahara ,  Takafumi Ogino ,  Akira Kirita ,  Akihiro Toda ,  Masamichi Iino ,  Toshihiro Sato ,  Yutaka Tanaka ,  Takanori Okazaki ,  Takashi Nakahara

IPC: G21C3/322 ,  F15D1/00 ,  G21C15/02 ,  G21C15/18

Abstract: To include a cylindrical vortex chamber 35, a small flow-rate pipe 37 connected to a peripheral plate 35C of the vortex chamber 35 along a tangential direction thereof, a large flow-rate pipe 36 connected to the peripheral plate 35C with a predetermined angle with respect to the small flow-rate pipe 37, an outlet pipe connected to an outlet 39 formed in a central part of the vortex chamber 35, and a straightening plate 50 that is arranged in a part between the outlet 39 and the peripheral plate 35C of the vortex chamber 35, and when jets flow into the vortex chamber 35 from the small flow-rate pipe 37 and the large flow-rate pipe 36, straightens impinging jets from the small flow-rate pipe 37 and from the large flow-rate pipe 36 having flowed into the vortex chamber 35 toward the outlet 39.

公开(公告)号：US10900508B2

公开(公告)日：2021-01-26

申请号：US15748413

申请日：2017-01-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Hideyuki Sakata ,  Shigeto Hirai ,  Taiki Asahara ,  Takafumi Ogino ,  Akira Kirita ,  Akihiro Toda ,  Masamichi Iino ,  Toshihiro Sato ,  Yutaka Tanaka ,  Takanori Okazaki ,  Takashi Nakahara

IPC: F15D1/00 ,  G21C15/243 ,  G21C15/18

Abstract: To include a cylindrical vortex chamber 35, a small flow-rate pipe 37 connected to a peripheral plate 35C of the vortex chamber 35 along a tangential direction thereof, a large flow-rate pipe 36 connected to the peripheral plate 35C with a predetermined angle with respect to the small flow-rate pipe 37, an outlet pipe connected to an outlet 39 formed in a central part of the vortex chamber 35, and a straightening plate 50 that is arranged in a part between the outlet 39 and the peripheral plate 35C of the vortex chamber 35, and when jets flow into the vortex chamber 35 from the small flow-rate pipe 37 and the large flow-rate pipe 36, straightens impinging jets from the small flow-rate pipe 37 and from the large flow-rate pipe 36 having flowed into the vortex chamber 35 toward the outlet 39.

公开(公告)号：US20180358137A1

公开(公告)日：2018-12-13

申请号：US15748365

申请日：2017-01-27

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Masamichi Iino ,  Shigeto Hirai ,  Taiki Asahara ,  Takafumi Ogino ,  Akira Kirita ,  Akihiro Toda ,  Hideyuki Sakata ,  Yutaka Tanaka ,  Setsuo Tokunaga ,  Takashi Nakahara ,  Takanori Okazaki

IPC: G21C15/18 ,  G21C15/243 ,  F15C1/16

CPC classification number: G21C15/182 ,  F15C1/16 ,  G21C1/18 ,  G21C15/18 ,  G21C15/243 ,  Y02E30/40

Abstract: A flow damper including a cylindrical vortex chamber, a small flow-rate pipe connected to a peripheral plate of the vortex chamber along a tangential direction, a large flow-rate pipe connected to the peripheral plate with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outlet formed in a central part of the vortex chamber, and a pressure equalization pipe with respective ends being connected to the peripheral plate on opposite sides of the outlet and at positions closer to a connection portion between the small flow-rate pipe and the large flow-rate pipe than positions facing each other, putting the outlet therebetween. The pressure equalization pipe is arranged with at least a part thereof is located at a higher position than a top plate of the vortex chamber, and an outgassing hole is provided at an uppermost part of the pressure equalization pipe.