Back to results
US 4,125,344 AGranted
Radial turbine wheel for a gas turbine
AssigneeDaimler-Benz Aktiengesellschaft
InventorEberhard Tiefenbacher
Life of this patent
Estimating the term…
Abstract
A radial turbine wheel for a gas turbine which consists of two parts and more particularly of a first part adjoining the turbine inlet which includes the outer sections of the blades and of a second part leading to the turbine outlet which includes the inner essentially curved section of the blades whereby the two parts are made of materials having different properties.
Claims9
A radial turbine wheel for a gas turbine, comprising:
- (a) a turbine wheel body formed with blades, said turbine wheel body having a first ceramic part comprising an outer section of blades and having a second metallic part comprising an inner essentially curved section of blades;
- (b) a turbine shaft on which said turbine wheel body is mounted;
- and
- (c) a central connection means, said connection means having both compressive means for holding together said first and second turbine wheel body parts with said turbine shaft and elastic means for compensating different thermal expansions of said first and second turbine wheel body parts and of said turbine shaft,
- characterized in that the blade sections of at least one of the two parts of the turbine wheel body project by a slight amount beyond the contact plane of the adjoining non-blade section of the wheel body so that, in the assembled condition of the turbine wheel, the blade sections of the wheel body are under a higher compressive stress than the adjoining non-blade sections of the wheel body.
2 more elements
Dependencies are inferred from the claim text.