Closed loop air-fuel ratio control system for use with internal combustion engine
CA 1071737 A · Owner: Nissan Motor Co. Ltd. · Inventors: Asano, Masaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an electronic closed loop control system for optimally controlling the air-fuel mixture fed to an internal combustion engine, two electrical circuits are provided: one for removing cumbersome manual adjustment of a standard signal level for ensuring the system a proper air-fuel ratio control and the, other for ensuring the system a proper control during a certain period after initially energizing the system. - 1 -
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
- Granted February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- 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.