Hi all

I am a new member & this is my first post. So if this question sounds noob then please bear with me.

I am unable to understand how rotary diesel injection pumps with opposed piston plungers like Stanadyne

DB2 & Lucas DPA maintain correct start of injection time because as more fuel is sent to the pumping

chamber the plungers move apart more & meet the cam lobes earlier( so timing must have been advanced more at higher throttle than at lower throttle). How does this maintain consistent injection timing?

Thanks in advance for all replies.