Abstract
In modern internal combustion engines the drive of valves of the mechanism of gas distribution and a plunger of the fuel pump of high pressure is carried out by the cam mechanism. The functional requirement imposed to gas distribution mechanism cams is receiving the greatest valve “time-section” when ensuring working capacity and reliability of the valvate drive. One of the main directions of improvement of fuel pumps of high pressure of diesel engines is increase in the maximum pressure of injection. In this work it is offered to improve a numerical method by imposition of the restriction on the first derivative of movement of the pusher on a cam angle of rotation, that is a pusher speed analog. This restriction allows to receive a cam with the site of constant maximum speed of the pusher. It allows to increase the maximum pressure of injection.
Highlights
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
Summary
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
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
