Title:
VARIABLE GEOMETRY TURBOCHARGER
Document Type and Number:
WIPO Patent Application WO/2021/130972
Kind Code:
A1
Abstract:
A variable geometry turbocharger according to one embodiment comprises: a rotary shaft; a turbine wheel provided to one end side of the rotary shaft; a compressor wheel provided to the other end side of the rotary shaft; a bearing housing for accommodating a bearing part that rotatably supports the rotary shaft; a variable nozzle mechanism for controlling the flow rate of exhaust gas flowing into the turbine wheel, the variable nozzle mechanism having a nozzle plate and a nozzle mount which define an exhaust gas flow path through which the exhaust gas is introduced into the turbine wheel, a nozzle vane disposed in the exhaust gas flow path so as to be capable of rotating about a support shaft, and a drive part which rotates the nozzle vane and is disposed in an internal space defined between the bearing housing and the nozzle mount; and a cooling gas passage which extracts compressed gas compressed by the compressor wheel and introduces the gas to the internal space.
Inventors:
KITAMURA TSUYOSHI (JP)
ISODA HOKUTO (JP)
DAMMOTO YOSUKE (JP)
ISODA HOKUTO (JP)
DAMMOTO YOSUKE (JP)
Application Number:
PCT/JP2019/051173
Publication Date:
July 01, 2021
Filing Date:
December 26, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02B39/00; F02B37/24
Domestic Patent References:
| WO2016120947A1 | 2016-08-04 |
Foreign References:
| JPS5997238U | 1984-07-02 | |||
| JP2008169788A | 2008-07-24 | |||
| JPS59168534U | 1984-11-12 | |||
| JP2013164040A | 2013-08-22 | |||
| JPS6119602A | 1986-01-28 | |||
| JP2012062808A | 2012-03-29 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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