Aircraft engine low-pressure compressor stiffener
CA 2511844 C · Owner: Snecma · Inventors: Lejars, Claude; Buffenoir, Francois; Mace, Jerome
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an aircraft engine at the low-pressure compressor (5) level imbalance effects may occur. In order to increase the rigidity of the set and therefore decrease potential cracks due to accidental imbalance stiffeners (20) are suggested, which can be integrated by one of their extremities (22) to the crankcase (7) at the level of the structural arm (10) and at the other extremity (32) to the compressor (5) ideally at the level of the upper face of the third rectifier (RD3). An additional advantage is that the stiffeners are joined to each other in two places; their construction is optimized to limit the additional weight due to their presence.
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 July 5, 2005 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.