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. 18, 2020
Filed:
Apr. 13, 2018
Caterpillar Inc., Deerfield, IL (US);
Yanchai Zhang, Dunlap, IL (US);
Zhaoxu Dong, Dunlap, IL (US);
Arun Rajendran, Peoria, IL (US);
Yifeng Lu, Peoria, IL (US);
Xuefei Hu, Dunlap, IL (US);
Lidi Chen, Peoria, IL (US);
Rodney D. Harms, Houston, TX (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Some examples described herein may involve determining an advance timing window between the valve opening or closing and a designated time that the valve is scheduled to open or close; determining a closing velocity of the valve; monitoring an engine speed of the engine; determining valve lash information based on the advance timing window, the closing velocity, and the engine speed, wherein the valve lash information identifies a magnitude of the valve lash or whether the magnitude of the valve lash associated with the valve satisfies a threshold; and performing an action based on the valve lash information.