Idling rpm feedback control method for internal combustion engines
CA 1202535 A · Owner: Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co. Ltd .) · Inventors: Hasegawa, Shumpei; Makino, Yuzi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of controlling a control valve that regulates the quantity of supplementary air being supplied to an internal combustion engine in a feedback, manner responsive to the difference between actual engine rpm and desired idling rpm at idling of the engine. During deceleration of the engine the control valve is, controlled so as to supply the engine with supplementary air at a volumetric flow rate dependent upon a detected value of ambient atmospheric pressure, after the engine has been determined to be in a predetermined operating condition and until the above feedback control is initiated. Preferably, the volumetric flow rate of the supplementary air quantity is set to larger values …
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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
- Granted April 1, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 2003.
- 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.