IN2013CH04756AIN4756CH2013AIN2013CH04756AIN 2013CH04756 AIN2013CH04756 AIN 2013CH04756AIN 4756CH2013 AIN4756CH2013 AIN 4756CH2013AIN 2013CH04756 AIN2013CH04756 AIN 2013CH04756A
Authority
IN
India
Prior art keywords
rocker
slider
oscillating
connecting rod
cam
Prior art date
Application number
Inventor
Ramesh A
Vinayak Arun
Original Assignee
Indian Inst Technology Madras
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Indian Inst Technology MadrasfiledCriticalIndian Inst Technology Madras
Priority to IN4756CH2013priorityCriticalpatent/IN2013CH04756A/en
Publication of IN2013CH04756ApublicationCriticalpatent/IN2013CH04756A/en
ABSTRACT A system for varying valve lift and duration in an automobile engine is provided. The system includes a guide, a slider, a rocker, a connecting rod and an oscillating cam. The slider is connected with rocker and the slider slides in the guide and one end of rocker is in contact with a primary cam follower and other end of rocker is connected with connecting rod. The slider provides sliding motion to the rocker. The oscillating cam is connected with connecting rod, and placed above a valve stem which operates the valve. The connecting rod provides oscillating motion to the oscillating cam. The oscillating motion of the oscillating cam varies the lift and duration of the valve and the range of oscillation of said oscillating cam is governed by the relative positioning of slider with rocker and contact point between primary cam follower and one end of rocker. Fig.l