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US 4,789,300 AGranted
Variable flow turbine expanders
AssigneeRotoflow Corporation
InventorJudson S. Swearingen
Life of this patent
Estimating the term…
Abstract
A radial inflow turbine having an axial discharge divided into concentric passages. The inner concentric passage or passages may be selectively blocked by means of a valve to accommodate a first range of flow rate. At higher flow rates, the valve is open to increase the effective nozzle area of the secondary nozzles at the discharge of the turbine wheel.
Claims10
A turbine assembly comprising
- an inlet;
- a turbine wheel including a rotor and blades fixed to said rotor and extending to an axial discharge;
- an exducer having a first, annular passage extending from said axial discharge and a second, central passage extending from said axial discharge;
- and
- a vale in one of said first and second passages to selectively block flow therethrough.
2 more elements
A turbine assembly comprising
- an inlet;
- a turbine wheel including a rotor and blades fixed to said rotor and extending to an axial discharge;
- an exducer having a plurality of concentric passages extending from said axial discharge;
- and
- a valve in at least one of said plurality of passages to selectively block flow therethrough.
2 more elements
A turbine assembly comprising
- an inlet;
- a turbine wheel including a rotor and blades fixed to said rotor and extending to an axial discharge;
- an exducer having a first, annular passage extending from said axial discharge and a second, central passage extending from said axial discharge;
- and
- a valve in said second passage to selectively block flow therethrough.
2 more elements
A turbine assembly comprising
- an inlet;
- a turbine wheel including a rotor and blades fixed to said rotor and extending to an axial discharge, said turbine wheel further including a cylindrical partition fixed to said blades at said axial discharge;
- an exducer having a first, annular passage extending from said axial discharge and a second, central passage extending from said axial discharge, said first and second passages being mutually concentric and including a wall therebetween, said wall being aligned with said circular partition;
- and
- a valve in one of said first and second passages to selectively block flow therethrough.
2 more elements
Dependencies are inferred from the claim text.