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:
Aug. 08, 2006
Filed:
Jun. 24, 2003
Anthony B Phipps, Uttoxeter, GB;
Anthony B Phipps, Uttoxeter, GB;
Rolls-Royce plc, London, GB;
Abstract
The gate arrangementis provided in order to regulate coolant airflow in a path typically in a turbine bladeof a jet engine. The gate arrangementincludes a gate componenthaving an opening endwhich at low temperature is closed by a gate member. Due to different coefficients of expansion between the gate componentand the gate memberwhen the arrangementincreases in temperature there is a divergence between a seal endof the gate memberin order to open the opening endof the gate componentand to allow coolant airflow through the arrangement. Thus, coolant airflow is allowed for high temperatures but as the gate componentand gate memberconverge at sustained typically lower temperatures coolant airflow is stopped in order to prevent unnecessary cooling and so provide greater thermal efficiency.