Combustion engine for hydrogen
CA 2036035 C · Owner: Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V. · Inventors: Schneider, Gottfried; Peschka, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to improve a combustion engine for hydrogen comprising a main piston which is displaceable in a main cylinder in a stroke direction between a top dead center forming a minimum, main cylinder chamber with the main cylinder and a bottom dead, center and hereby performs a suction stroke a compression, stroke, a displacement stroke and an exhaust stroke such that, the problems of early ignition are avoided without any internal mixture formation with late injection being required it is, recommended that an auxiliary piston and an auxiliary cylinder be provided for movement relative to one another so as to be in equal phase and synchronous with the main piston and the main cylinder, that …
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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 February 8, 1991 and granted December 10, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2013.
- 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.