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:
Nov. 17, 2020
Filed:
Mar. 27, 2018
Applicant:
Scania Cv Ab, Södertälje, SE;
Inventors:
Andreas Dahl, Nyköping, SE;
Eric Olofsson, Stockholm, SE;
Assignee:
Scania CV AB, Södertälje, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/06 (2006.01); F02D 13/02 (2006.01); F01L 1/04 (2006.01); F01L 13/00 (2006.01);
U.S. Cl.
CPC ...
F01L 1/06 (2013.01); F01L 1/04 (2013.01); F01L 13/0036 (2013.01); F02D 13/0207 (2013.01); F02D 13/0261 (2013.01);
Abstract
A four-stroke internal combustion engine is disclosed. A camshaft and a crankshaft if the engine are synchronised to rotate at a same rotational speed. A first linkage arrangement is configured to change the motion of an exhaust valve head. A second linkage arrangement is configured to change the motion of the intake valve head. A control unit is configured for controlling the first linkage arrangement to selectively prevent or reduce the motion of the exhaust valve head and for controlling the second linkage arrangement to selectively prevent or reduce the motion of the intake valve head.