Diesel vehicle primary fuel pump driven by fuel return energy
CA 2254513 A1 · Owner: Channing, Derek A. · Inventors: Channing, Derek A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel system for an automotive vehicle equipped with a diesel engine includes a fuel tank a, fuel injection pump, a fuel supply passage for conducting fuel from the fuel tank to the fuel injection pump and a, fuel return passage for conducting fuel from the fuel injection pump to the fuel tank. A hydraulically powered lift pump moves fuel from the fuel tank to the fuel injection pump through a fuel supply passage. The lift pump includes a hydraulic motor powered by fuel flowing through the fuel return passage and a primary fuel pump coupled to and powered by the hydraulic motor with the, primary fuel pump providing fuel to the injection pump through the fuel supply passage.
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
- Filed November 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 25, 2020.
- 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.