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:
Jul. 16, 1991
Filed:
Mar. 27, 1990
Applicant:
Inventor:
Hermann Kruger, Wolfsburg, DE;
Assignee:
Volkswagen AG, Wolfsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F02B / ; F02B / ; F01L / ;
U.S. Cl.
CPC ...
123 9015 ; 123316 ;
Abstract
In the embodiment described in the specification a combustion chamber for an internal combustion engine has intake and exhaust valves arranged to scavenge the combustion chamber with fresh gas. The valve control for the intake valve is arranged so that the intake valve closing time is delayed with decreasing load and, to avoid a corresponding reduction of the compression ratio, the combustion chamber has a variable volume annex which reduces the combustion chamber volume with decreasing load.