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:
Dec. 25, 2001
Filed:
May. 19, 2000
Jeffrey D. Willis, Ernsford Grange, GB;
James Melville, Littleover, GB;
Rolls-Royce plc, London, GB;
Abstract
A combustion chamber assembly (,) comprises a primary, a secondary and a tertiary fuel and air mixing ducts (,) to supply fuel and air to primary, secondary and tertiary combustion zones (,). Each of the primary, secondary and tertiary fuel and air mixing ducts (,) comprises a pair of axial flow swirlers (,) arranged coaxially to swirl the air in opposite directions and fuel injectors (,) to supply fuel coaxially of the respective axial flow swirlers (,). Valves (,) are provided to control the supply of air to the primary and the secondary fuel and air mixing ducts (,) respectively. A duct (,) is arranged to supply cooling air and dilution air to the combustion chamber (,). The amount of air supplied to the primary, secondary and tertiary fuel and air mixing ducts (,) and the duct (,) is measured.