Low volumetric compression ratio integrated turbo-compound rotary engine
CA 2516720 C · Owner: Pratt & Whitney Canada Corp. · Inventors: Julien, Andre; Chevrefils, Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound cycle engine (10) comprises a compressor and a turbine section (14 18), and at least one cycle topping device (16) providing an energy input to the turbine section (18). The compressor section (14) compresses the air according to a pressure ratio PRgt. The cycle topping device (16) further compresses the air according to a volumetric compression ratio Rvc and , wherein PRgt x Rvc are selected, according to one aspect of the invention to , provide a cycle which permit a more compact and lighter compound cycle engine to be provided.
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 February 24, 2004 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2026.
- 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.