Engine braking system
CA 1160920 A · Owner: Jacobs Manufacturing Company (The) · Inventors: Custer, Dennis R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An engine braking system of a gas compression relief type is provided to control the timing of the system which includes a hydro-mechanical mechanism which opens the exhaust valve near the top of the compression stroke of the engine so that the energy absorbed by the engine during the compression stroke is not returned to the engine during the expansion stroke. In accordance with the invention, hydro-mechanical means are provided in the exhaust valve actuating mechanism to reduce the clearance in that mechanism to a value which maximizes the retarding power developed by the engine whenever the engine brake is activated.
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 January 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
- 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.