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Patent Searching and Data


Title:
COOLING STRUCTURE OF SUPERCHARGER
Document Type and Number:
WIPO Patent Application WO/2010/023984
Kind Code:
A1
Abstract:
In order to reduce radiation heat from the turbine housing of a supercharger, the turbine housing is conventionally water-cooled or covered with a heat shielding material, but it is required to control heat loss due to excessive water cooling or high temperature on the outer surface of the heat shielding material. On the contrary, a solution by a cooling structure consisting of an inner thermal insulation portion of an air layer and an outer low temperature portion covering the inner thermal insulation portion has an inevitable problem of increasing number of components and upsizing. In a cooling structure of a supercharger (2) equipped with a turbine wheel (35) which rotates with exhaust gas from an engine (1) and provided, on the periphery of a turbine housing (40) for housing the turbine wheel (35), with a cooling structure (47) consisting of an inner thermal insulation portion of an air layer (45) and an outer low temperature portion covering the inner thermal insulation portion, the outer low temperature portion is constituted by integrally forming a circulation passage (46) of fresh water in a turbine cover (39) which covers and protects the turbine housing (40).

Inventors:
TAKAHATA TERUMITSU (JP)
Application Number:
JP2009/055894
Publication Date:
March 04, 2010
Filing Date:
March 25, 2009
Export Citation:
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Assignee:
YANMAR CO LTD (JP)
TAKAHATA TERUMITSU (JP)
International Classes:
F02B39/00; F01P1/06; F02B39/16; F02B77/11
Foreign References:
JPH0213142U1990-01-26
JPH0673337U1994-10-18
JP2000074526A2000-03-14
JPH0356835U1991-05-31
Other References:
See also references of EP 2320047A4
None
Attorney, Agent or Firm:
YANO, Juichiro (JP)
Juichiro Yano (JP)
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