The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
May. 29, 1991
Applicant:
Inventors:
Jan Dahlgren, Gothenburg, SE;
Jan Karlsson, Vastra Frolunda, SE;
Assignee:
AB Volvo, a Swedish Body Corporate, Gothenburg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123403 ; 123 / ;
Abstract
An internal combustion engine includes at least one valve flap mounted for swinging movement in the intake duct upstream in the cylinder intake valve. The flap is magnetically attracted to a closed position when an electromagnetic is activated, in order to effect a delayed charging of the cylinder. When the electromagnet is fully or partially deactivated, a pressure differential acting across the flap swings the flap open.
Dahlgren, Jan. (1992). Internal combustion engine with delayed charging (U.S. Patent No. 5143038). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5143038
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile