TURBINE HOUSING FOR TWIN SCROLL TURBOCHARGER

Title:

TURBINE HOUSING FOR TWIN SCROLL TURBOCHARGER

Document Type and Number:

WIPO Patent Application WO/2012/060187

Kind Code:

A1

Abstract:

A turbine housing (12) for a twin scroll turbocharger (10A) is divided by a partition wall (40) into a front scroll passage (42) and a rear scroll passage (44). A front partition wall (50) and the root portion (40b) of the partition wall (40) are bent to the front side to secure passage cross sectional areas (a1, a2, a3,... and b1, b2, b3,...). The passage cross-sectional areas of both the scroll passages (42, 44) are uniformly formed. The front end portion (40a) of the partition wall (40) is directed at right angle to the turbine rotor blades (26). Both the scroll passages (42, 44) are configured to be symmetrical about the axis (X) of the front end portion (40a) in the vicinity of the front end portion (40a). Thus, a difference in flow rate is eliminated.

Inventors:

YOSHIDA TOYOTAKA (JP)
EBISU MOTOKI (JP)

Application Number:

PCT/JP2011/073410

Publication Date:

May 10, 2012

Filing Date:

October 12, 2011

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
YOSHIDA TOYOTAKA (JP)
EBISU MOTOKI (JP)

International Classes:

F02B39/00

Foreign References:

JPS63112202U	1988-07-19
JPS63309724A	1988-12-16
JPS52144515A	1977-12-01
JP2006348894A	2006-12-28
JPS63117124A	1988-05-21

Other References: