Fuel injection device for internal combustion engines
CA 2101755 C · Owner: Ficht Gmbh · Inventors: Heimberg, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel injection device (5) for internal combustion engines has an injection nozzle to which fuel is supplied by means of a pressure device comprising a fuel-accelerating pump (1) and a fuel-retarding device (6) which, when activated convert, the kinetic energy of the accelerated fuel abruptly to a pressure shock wave which causes the fuel to be sprayed through the injection nozzle (5). According to the invention an intermittently, operated fuel-accelerating pump (1) is used. This pump (1) and the preferably electrically operated retarding device (6) are preferably controlled by a common control device (8). As a result the injection device can be operated with very little optimally, …
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 October 7, 1991 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2013.
- 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.