The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2022
Filed:
May. 15, 2019
Cummins Ltd., London, GB;
Matthew William Edwards, Huddersfield, GB;
Karl Conlon, Huddersfield, GB;
Simon David Moore, Huddersfield, GB;
Christopher Parry, Huddersfield, GB;
Andrew Sullivan, Huddersfield, GB;
Paul Ghosh, Huddersfield, GB;
Mark R. Holden, Huddersfield, GB;
George E. Sandford, Huddersfield, GB;
Nandakishore Arcot Madhusudan, Huddersfield, GB;
Stephen David Hughes, Huddersfield, GB;
Christopher J. Shaw, Huddersfield, GB;
CUMMINS LTD., London, GB;
Abstract
A turbine for a turbo-machine is proposed in which, at a gas inlet for a turbine wheel, vanes extend from a nozzle ring though slots in a shroud. The nozzle ring and shroud are relatively rotatable about a rotational axis of the turbine by at least 0.1 degrees. In use, the nozzle ring and shroud are relatively rotated to bring one side of the vane into close contact with one surface of the slot, to inhibit leakage of gas between the vane and the slot surface. For this purpose the respective surfaces of the nozzle and slot can be configured to closely conform to each other. If there is differential thermal expansion of the shroud and nozzle ring, the nozzle ring and shroud can relatively rotate, to withdraw the vane from the edge of the slot to relieve the pressure between them.