Tertiary fuel injection system for use in a dry low nox combustion system
CA 2103433 C · Owner: General Electric Company · Inventors: Kuwata, Masayoshi; Borkowicz, Richard; Davis, Lewis Berkley, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved gas turbine combustor of the type including primary and secondary combustion chambers with a venturi including a throat portion located therebetween; a plurality of primary fuel infection nozzles secured to a combustor cap an an annular array upstream of the primary combustion chamber; and a centerbody including a secondary fuel nozzle said centerbody extending from said combustor cap to said secondary combustion chamber; the improvement comprising a plurality of tertiary foal injection nozzles arranged in a circular array about a longitudinal axis of the combustor at a downstream of said venturi throat portion for injecting fuel into the secondary combustion chamber.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 18, 1993 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.