| 摘要 |
A supercharger for an internal combustion engine has a turbine driven compressor. The turbine is driven by the exhaust gases and is mounted in a volute casing. The volute casing has an internal flow passage which has an inlet and the passage is arranged to receive and discharge a flow of motive gases. The passage is partly defined by one or more movable wall members. The or each wall member is movable to vary the passage area whilst allowing the whole of the flow of motive gas to flow through the passage. Two movable wall members can be provided operated by a common linkage and the volute casing can have two inlets to receive the exhaust gases from separate manifolds of an internal combustion engine.
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