VALVE LASH DETECTION AND ANALYSIS

• Main Authors: RAJENDRAN, Arun, LU, Yifeng, CHEN, Lidi, HU, Xuefei, DONG, Zhaoxu, ZHANG, Yanchai, HARMS, Rodney D
• Format: Patent
• Language: English
• Published: 17.10.2019
• Subjects: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; BLASTING; CHECKING-DEVICES; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; GENERATING RANDOM NUMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; STEAM ENGINES; TIME OR ATTENDANCE REGISTERS; VOTING OR LOTTERY APPARATUS; WEAPONS

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 infor...