Exhaust gas reflux apparatus
CA 1254805 A · Owner: Suzuki Jidosha Kogyo Kabushiki Kaisha · Inventors: Osada, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exhaust gas reflux apparatus for an internal combustion engine. This apparatus comprises an EGR regulating valve to control the amount of exhaust gas which is refluxed into an intake system of the engine an ignition coil to detect the rotating speed of the engine; a shift switch to detect the gear position of the change gear; a negative pressure change-over valve arranged in a negative pressure passage; and a control circuit which discriminates a high-speed and high-load operating state of the engine when the rotating speed is over a set speed and the change gear is at a set gear position on the high speed side on the basis of the detection signals from the ignition coil and shift …
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 May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
- 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.