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:
Jun. 24, 2003
Filed:
Jul. 30, 2001
Applicant:
Inventor:
Ingemar Denbratt, Kullavik, SE;
Assignee:
AB Volvo, Gothenburg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 7/504 ;
U.S. Cl.
CPC ...
F02B 7/504 ;
Abstract
A four-stroke internal combustion engine includes variable geometric compression ratio, electrically operated inlet valves and a device for supplying a homogeneous fuel/air mixture to the engine cylinders. The inlet valves and the compression ratio are controlled by a control unit, so that the fuel/air mixture, within a lower engine rpm range, is compressed to self-ignition.