Patents by Inventor Rune Widlund

Rune Widlund has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Combustion engine of turbocompound type with exhaust gas brake
    Patent number: 5884482
    Abstract: The invention relates to a combustion engine 7 of compound type in which the exhaust gases partly drive a first turbine 3 for driving a compressor 4 for supplying and compressing combustion air, partly a second turbine 2 which, via a mechanical transmission 1 transmits the residual energy in the exhaust gases to the crankshaft 10 of the combustion engine. The exhaust gas brake 6 being placed downstream, in the exhaust gas flow direction, after the second power turbine 2 results in a greatly increased braking effect at a given limited permitted exhaust gas temperature. In corresponding conditions with regard to exhaust gas temperature and type of exhaust gas brake damper the braking effect extracted for compound engines can be improved by up to 27% compared with a conventional supercharged diesel engine.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: March 23, 1999
    Assignee: Scania CV Aktiebolag
    Inventors: Per Lange, Kjell Isaksson, H.ang.kan Fransson, Sigvard Orre, Rune Widlund