Title:
VARIABLE GEOMETRY MECHANISM
Document Type and Number:
WIPO Patent Application WO/2019/069678
Kind Code:
A1
Abstract:
A variable nozzle mechanism part rotates a plurality of nozzle vanes in a turbocharger to change the opening degree of a nozzle. The variable geometry nozzle mechanism unit is provided with: a drive ring that is rotated by an external drive force; a nozzle link plate that is provided to a vane shaft of each nozzle vane and configured to be rotated together with the nozzle vane in response to the rotation of the drive ring; and an engagement section for converting the rotation of the drive ring into the rotation of the nozzle link plate. The engagement section has a driving element provided to the drive ring, and a driven element that is provided to the nozzle link plate, fitted to the driving element with a clearance, and displaced when pushed by the driving element. The amount of the clearance varies depending on the opening degree of the nozzle.
Inventors:
HAYASHI KATSUNORI (JP)
Application Number:
PCT/JP2018/034487
Publication Date:
April 11, 2019
Filing Date:
September 18, 2018
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F02B37/24; F01D17/16
Foreign References:
| US20110138805A1 | 2011-06-16 | |||
| JPS5970035U | 1984-05-12 | |||
| JP2017180462A | 2017-10-05 | |||
| DE102007005445A1 | 2008-08-07 | |||
| US20120237339A1 | 2012-09-20 | |||
| JP2009531587A | 2009-09-03 | |||
| JPS6013902A | 1985-01-24 | |||
| JP2014224498A | 2014-12-04 | |||
| JP2016525640A | 2016-08-25 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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