Exhaust gas purification apparatus, internal combustion engine comprising the same, and particulate filter restoring method
CA 2598862 C · Owner: Nishimura, Akihiro · Inventors: Kitazaki, Masato; Nishimura, Akihiro; Hara, Michihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an embodiment of an exhaust gas purification apparatus when an , accumulation amount of particulate matter in a DPF (33) exceeds a predetermined amount and an exhaust gas temperature of an engine is lower than a restoration operable temperature an intake air amount reducing , operation is executed by an air intake throttling device (24) provided for an air intake pipe (21) of the engine, and a heating operation is executed by an electric heater (34) provided upstream from the DPF (33) thereby increasing , the exhaust gas temperature to the restoration operable temperature to start a restoration operation of the DPF (33).
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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 10, 2006 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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