Cruise economy system
CA 1101520 A · Owner: Bendix Corporation (The) · Inventors: Taplin, Lael B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closed loop integral control system for the air/fuel management of an internal combustion engine is disclosed. An oxygen sensor positioned in the exhaust gas of the internal combustion engine is biased with a constant current source to provide a signal indicative of the oxygen content of the exhaust gas over a significant range of air/fuel ratios. The signal waveform from the sensor is compared to a threshold value of a comparator to produce level changes in the comparator output depending on whether the output of the sensor is above or below the threshold. An integrator, receiving these level changes as commands to increase or decrease the fuel pulse widths, controls the air/fuel ration …
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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 May 19, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 1998.
- 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.