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Canadian application, no grantCanada

Methods and apparatus for water injection in a turbine engine

CA 2306487 A1 · Owner: Payling, Stephen Rex · Inventors: Payling, Stephen Rex; Brown, Curtis L.; Coleman, Robert Paul

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Methods and apparatus for injecting water into a turbine engine are described. In one embodiment, water injection apparatus is provided for injecting water into the gas flow through the engine, e.g. at a high pressure and/or low pressure compressor inlet. The water injection apparatus includes a plurality of nozzles arranged so that water injected into the gas flow by the nozzles results in substantially uniformly reducing the temperature of the gas flow at the high pressure compressor outlet.

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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 July 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 22, 1999
GrantedNo grant recorded
Term endedJuly 22, 2019
Patent numberCA 2306487 A1
Classification (IPC)F02C3/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 22, 1999Term endedJuly 22, 2019

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.