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:
Feb. 23, 2021
Filed:
Jun. 01, 2017
Applicant:
Scania Cv Ab, Södertälje, SE;
Inventor:
Hans Göransson, Älvsjö, SE;
Assignee:
Scania CV AB, Södertälje, SE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/344 (2006.01); F02D 13/08 (2006.01); F02D 17/04 (2006.01); F15B 1/24 (2006.01); F01L 1/053 (2006.01);
U.S. Cl.
CPC ...
F01L 1/3442 (2013.01); F02D 13/08 (2013.01); F02D 17/04 (2013.01); F15B 1/24 (2013.01); F01L 2001/0537 (2013.01); F01L 2001/3443 (2013.01); F01L 2001/34446 (2013.01); F01L 2001/34496 (2013.01); F01L 2250/02 (2013.01); F01L 2250/04 (2013.01);
Abstract
A phase-shifting device, a so-called cam phaser, is arranged between a crankshaft and at least one camshaft to change the at least one camshaft's rotational position in relation to the crankshaft and thus push forward or defer at least one inlet valve's and/or at least one exhaust valve's opening and closing time. The phase-shifting device is connected to an accumulator that can be charged by an oil pump. The oil pressure may be increased with the help of a pressure medium controlled cylinder before or during a phase-shifting process.