公开(公告)号：US10408232B2

公开(公告)日：2019-09-10

申请号：US15188031

申请日：2016-06-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Ogata ,  Tadayoshi Shoyama ,  Akira Hiwata ,  Hidetoshi Taguchi ,  Kazuyuki Kouda ,  Hiroshi Hasegawa

IPC: F01D25/16 ,  F04D29/047 ,  F04D29/06 ,  F04D17/12 ,  F04D29/053 ,  F01D25/18 ,  F02C6/12 ,  F04D29/66 ,  F04D29/057 ,  F04D29/063 ,  F16C27/04 ,  F04D29/28 ,  F01D9/02 ,  F01D9/06

Abstract: A turbo machine according to present disclosure includes a rotating shaft, a first impeller, a first fluid bearing, a first holding member, a first lubricating liquid casing, a first supplying passage, and a first squeeze film damper. The first fluid bearing rotatably supports the first taper portion and the first cylindrical portion. The first fluid bearing is attached to the first holding member. The first lubricating liquid casing forms a first storing space. The first supplying passage is a passage through which a lubricating liquid is supplied to the first storing space. The first squeeze film damper is a space located between the first fluid bearing and the first holding member. The first squeeze film damper communicates with the first supplying passage.

公开(公告)号：US10570775B2

公开(公告)日：2020-02-25

申请号：US15159998

申请日：2016-05-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyuki Kouda ,  Hidetoshi Taguchi ,  Akira Hiwata ,  Takeshi Ogata ,  Tadayoshi Shoyama ,  Hiroshi Hasegawa

IPC: F01D25/16 ,  F04D29/66 ,  F16C27/06 ,  F04D29/056 ,  F16C17/10 ,  F01D25/04 ,  F04D29/02

Abstract: A turbo machine of the present disclosure includes a cylindrical bearing housing, a rotation shaft, a bearing, a bearing holder, and an end elastic body. The rotation shaft is located in the bearing housing. The bearing rotatably supports the rotation shaft at least in a radial direction of the rotation shaft. The bearing holder faces one end of the bearing and is fixed to the bearing housing. The end elastic body is disposed between the one end of the bearing and the bearing holder in the axial direction of the bearing and is in contact with the bearing and the bearing holder. The end elastic body is formed of a material having a lower modulus of elasticity than a material forming the bearing holder.

公开(公告)号：US10066634B2

公开(公告)日：2018-09-04

申请号：US14877772

申请日：2015-10-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Ogata ,  Tadayoshi Shoyama ,  Akira Hiwata ,  Hidetoshi Taguchi ,  Kazuyuki Kouda ,  Hiroshi Hasegawa

IPC: F04D29/056 ,  F04D25/02 ,  F04D29/42 ,  F04D29/051 ,  F04D29/063 ,  F04D29/28 ,  F04D17/12 ,  F04D29/053 ,  F04D29/047 ,  F04D29/057 ,  F04D29/06

CPC classification number: F04D29/056 ,  F04D17/122 ,  F04D25/02 ,  F04D29/047 ,  F04D29/051 ,  F04D29/053 ,  F04D29/057 ,  F04D29/061 ,  F04D29/063 ,  F04D29/284 ,  F04D29/4206

Abstract: A turbo machine includes a rotation shaft that comprises a first taper portion and a first cylinder portion, the first taper portion decreasing in diameter toward one end of the rotation shaft, the first cylinder portion being constant in diameter in an axial direction of the rotation shaft; a first impeller that is fixed to the rotation shaft and that is used for compressing or expanding working fluid; a first bearing that rotatably supports the first taper portion and the first cylinder portion; and a second bearing that is positioned on an opposite side of the first impeller from the first bearing in the axial direction of the rotation shaft and that supports the rotation shaft both in the axial direction and a radial direction of the rotation shaft.

公开(公告)号：US10670030B2

公开(公告)日：2020-06-02

申请号：US15139204

申请日：2016-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Hiwata ,  Kazuyuki Kouda ,  Mamoru Nishibu ,  Tadayoshi Shoyama ,  Takeshi Ogata ,  Hidetoshi Taguchi

IPC: F04D29/063 ,  F04D29/06 ,  F04D29/047 ,  F04D29/057 ,  F02C7/06 ,  F16C33/10 ,  F04D29/046 ,  F25B1/053

Abstract: A turbo machine of the present disclosure includes a rotation shaft, a first bearing, a casing, an impeller, a first space, a second space, a storage tank, a first outlet passage, a supply passage, a pump, a main passage, and a sub-passage. The second space is in communication with a space formed between a bearing surface of the first bearing and an outer surface of the rotation shaft. The main passage is in communication with the second space and extends in the rotation shaft from an end of the rotation shaft in an axial direction of the rotation shaft. The sub-passage is formed in the rotation shaft and allows communication between the space between the bearing surface of the first bearing and the outer surface of the rotation shaft and the main passage.

公开(公告)号：US10247037B2

公开(公告)日：2019-04-02

申请号：US15366739

申请日：2016-12-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Ogata ,  Tadayoshi Shoyama ,  Kazuyuki Kouda ,  Hiroshi Hasegawa

IPC: F04D29/42 ,  F01D25/24 ,  F01D9/02 ,  F16C33/10 ,  F01D25/16 ,  F16C17/10 ,  F16C17/26

Abstract: A turbomachine of the present disclosure includes a rotating shaft, an impeller, a bearing, and a casing. The casing is arranged around the impeller in a circumferential direction of the rotating shaft. A volute is defined in the casing as a passage of a working fluid that is compressed or expanded by rotation of the impeller. The casing includes one or more ribs. The one or more ribs are arranged only in a diagonal area, or the one or more ribs are a plurality of ribs and a degree of reinforcement of the diagonal area by the plurality of ribs is larger than a degree of reinforcement of a tongue portion area by the plurality of ribs.