Patents by Inventor Anders H Petren

Anders H Petren 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).

  • Flap valve for intake system for an internal combustion engine
    Patent number: 5967107
    Abstract: An intake system for internal combustion engine comprises a separate intake manifold for each engine cylinder with a first manifold portion extending between the intake valves of the respective cylinder and a first air distribution chamber, and a second manifold portion forming a connection between the first air distribution chamber and a second air distribution chamber. For each cylinder there is arranged a valve which in a first position connects the intake manifold portions and in a second position opens these intake manifold portions towards the first air distribution chamber, in such a way that the valves are simultaneously acutuatable between these two positions by means of control means with regard to the motor speed.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: October 19, 1999
    Assignee: AB Volvo
    Inventors: Jan A G Karlsson, Anders H Petren