Method for internal combustion engine start-up
CA 2212754 A1 · Owner: Romzek, Martin Anthony · Inventors: Romzek, Martin Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for engine start-up reducing white smoke and the start-to-idle time. The method includes the combination of producing two sub-fuel injections into the cylinders of the internal combustion engine at different points in the rotational position of at least one camshaft of the engine and reducing the number of combusting cylinders in half. The two sub-fuel injections reduce the start-to-idle time. Once the engine is idling the half, cylinder operation reduces the white smoke emitted therefrom. The two sub-fuel injections are also employed when in half cylinder operation to reduce noise.
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 August 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2019.
- 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.