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.