Exhaust gas turbine type supercharger

Details Exhaust gas turbine type supercharger Exhaust gas turbine type supercharger

1985-11-01

1988-05-24

Husar, Stephen F.

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

F02D 2300

Patent

active

047457520

ABSTRACT:
An exhaust gas turbine type supercharger in which a casing of a turbine is divided into two chambers along a flow direction of the exhaust gas to form an open scroll and a closed scroll. The open scroll feeds the turbine with the exhaust gas over a full operational range of the engine. The closed scroll is opened to increase a flow rate of the exhaust gas to the turbine when the supercharged pressure is high as in a high load/high speed operation of the engine. A port is formed through a partitioning wall between the open scroll and a downstream exhaust gas passage of the turbine and an opening/closing valve is interposed thereat to thereby bypass the exhaust gas to a downstream portion of the turbine with the port being opened, when the supercharged pressure becomes high.

REFERENCES:
patent: 1816787 (1931-07-01), Moss
patent: 3389553 (1968-06-01), Hardy et al.
Patent Abstracts of Japan, vol. 9, No. 290 (M-430) [2013], published 7/10/1985, JP 60-128931, assignee Mazda.

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