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Expired Canadian patentCanada

Direct fuel injection systems

CA 1306394 C · Owner: Ragg, Peter William · Inventors: Ragg, Peter William

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A fuel injected internal combustion engine and a method of operating same, the engine having a fuel injection system (81) wherein fuel is injected through a selectively openable injector nozzle (142) directly into a combustion chamber (91) of the engine by gas from a pressurised gas supply system(71, 83, 85). While the engine is being cranked, during start-up of the engine the injector nozzle, is opened to communicate said combustion chamber (91) with the gas supply system (71, 83, 85). The gas supplied from the combustion chamber (91) to the gas supply system (71 83, 85) establishes an adequate pressure for effective operation of the fuel injection system (81).

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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 August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 13, 1988
GrantedAugust 18, 1992
Term endedAugust 18, 2009
Patent numberCA 1306394 C
Classification (IPC)F02M67/04 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 13, 1988Patent grantedAug 18, 1992Term endedAug 18, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.