Title:
スピンドル装置
Document Type and Number:
Japanese Patent JP6648521
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a spindle device capable of achieving high-speed rotation and high torque by suppressing the deformation of a turbine impeller due to centrifugal force.SOLUTION: Each turbine blade 31 installed on a turbine impeller 30 has such a shape in view from the axial direction that a portion Lhaving a maximum length in the circumferential direction of the turbine impeller 30 is located radially inside of a radial intermediate position d of the turbine blade 31.SELECTED DRAWING: Figure 2
Inventors:
Naoya Kobayashi
Atsushi Takahashi
Atsushi Takahashi
Application Number:
JP2015252467A
Publication Date:
February 14, 2020
Filing Date:
December 24, 2015
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F01D15/06; F01D1/08; F01D1/12
Domestic Patent References:
| JP2007023783A | ||||
| JP2013113179A | ||||
| JP2008119788A | ||||
| JP2011140983A | ||||
| JP51077346U | ||||
| JP36024150B1 |
Attorney, Agent or Firm:
Patent business corporation glory patent office