Title:
可変ノズル機構及び可変容量型排気ターボ過給機
Document Type and Number:
Japanese Patent JP6370984
Kind Code:
B2
Abstract:
A variable nozzle mechanism includes: a nozzle mount having an annular shape; a plurality of nozzle vanes supported rotatably at a plurality of respective locations along a circumferential direction of the nozzle mount; and a drive ring disposed rotatably with respect to the nozzle mount, the drive ring being configured to transmit a driving force to the nozzle vanes so that a vane angle of the nozzle vanes is variable and to rotate the nozzle vanes. The drive ring includes: a low-rigidity region; and a high-rigidity region including an uneven portion in a thickness direction of the drive ring, and having a greater cross-sectional secondary moment than the low-rigidity region in a cross section along a radial direction of the drive ring. The low-rigidity region and the high-rigidity region are disposed alternately in the circumferential direction. The number of the low-rigidity region and the number of the high-rigidity region are odd numbers, or the low-rigidity region and the high-rigidity region are disposed at an irregular pitch in the circumferential direction.
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Inventors:
Permanent Hiji
Yuki Ishii
Takaki Sato
Danmoto Yosuke
Yoji Akiyama
Yuki Ishii
Takaki Sato
Danmoto Yosuke
Yoji Akiyama
Application Number:
JP2017501594A
Publication Date:
August 08, 2018
Filing Date:
February 24, 2015
Export Citation:
Assignee:
Mitsubishi Heavy Industries Engine & Turbocharger Co., Ltd.
International Classes:
F02B37/24; F01D17/16; F02C3/05
Domestic Patent References:
| JP4741709B1 | ||||
| JP4875602B2 | ||||
| JP2015094266A | ||||
| JP2009531587A | ||||
| JP2010156279A |
Foreign References:
| US20150016968 | ||||
| WO2013047154A1 | ||||
| US20100260597 |
Attorney, Agent or Firm:
Seishin ip patent business corporation