Title:
TURBINE HOUSING AND TURBOCHARGER
Document Type and Number:
WIPO Patent Application WO/2020/174533
Kind Code:
A1
Abstract:
A turbine housing according to the present invention includes: a scroll section defining a spiral space therein; a tubular exhaust-gas introduction section having an exhaust-gas introduction port and defining therein a communication path communicating between the exhaust-gas introduction port and the spiral space; an inner scroll member made of a metal plate and disposed in the spiral space to form a first heat-insulating space between the inner scroll member and the inner surface of the scroll section, the inner scroll member defining therein a spiral flow path through which exhaust gas flowing from the exhaust-gas introduction port flows; and an inlet member made of a metal plate as a separate part from the inner scroll member and disposed in the communication path to form a second heat-insulating space between the inlet member and the inner surface of the exhaust-gas introduction section, the inlet member defining therein a communication flow path communicating between the exhaust-gas introduction port and the spiral flow path. The upstream end of the inner scroll member and the downstream end of the inlet member overlap each other in the axial direction of the exhaust-gas introduction section.
Inventors:
KITAMURA TSUYOSHI (JP)
OZAKI MAKOTO (JP)
OZAKI MAKOTO (JP)
Application Number:
PCT/JP2019/007065
Publication Date:
September 03, 2020
Filing Date:
February 25, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02B39/00
Domestic Patent References:
| WO2015129037A1 | 2015-09-03 | |||
| WO2018207754A1 | 2018-11-15 |
Foreign References:
| JP2004183651A | 2004-07-02 | |||
| JP2017198131A | 2017-11-02 | |||
| JP2017089634A | 2017-05-25 | |||
| JP2011153623A | 2011-08-11 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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