Title:
VARIABLE CAPACITY TURBINE
Document Type and Number:
Japanese Patent JPH01227803
Kind Code:
A
Abstract:
PURPOSE:To aim at expansion of variable capacity range of fluid by angularly providing a variable nozzle which is composed of plural arc-shaped vanes to one of two scroll passages which are partitioned in parallel along an outer periphery of a turbine wheel. CONSTITUTION:A turbine casing 4 in a turbo charger for an engine has an annular scroll passage 21, whose sectional area reduces in the downstream direction, and an exhaust outlet passage 22 inside thereof. In this case, the scroll passage 21 is divided into the first and the second scroll passages 25, 26 by a partitioning wall 24 extending from an inlet which is opened in the direction of a tangent line to a whole circumference. A variable nozzle 28 is provided to the second scroll passage 26 in the position facing an inlet of a turbine wheel 23. The variable nozzle 28 is composed of four fixed vanes 29 of partially arc shape, which are alternately provided along a circumference direction, and four movable vanes 30. Angles of the movable vanes 30 are variable via linkages 34 by an outside driving means.
Inventors:
YANO SHUNJI
Application Number:
JP5433388A
Publication Date:
September 12, 1989
Filing Date:
March 08, 1988
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F01D17/14; F01D17/16; F02B37/22; F02B37/24; F01D9/02; F02C9/22; (IPC1-7): F01D9/02; F02B37/12; F02C9/22
Domestic Patent References:
| JPS62126224A | 1987-06-08 | |||
| JPS60125727A | 1985-07-05 |
Foreign References:
| GB925984A | 1963-05-15 |
Attorney, Agent or Firm:
Yoichi Oshima
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