Why do diesel engines have two fuel pumps? Are they really necessary?

[Llewelyn Curling]

https://www.quora.com/Why-do-diesel-engines-have-two-fuel-pumps-Are-they-really-necessary

Why do diesel engines have two fuel pumps? Are they really necessary? - Quora Answer (1 of 4): Say you’re designing a diesel car. You know you are also doing petrol models. You also know that diesel and petrol engines require different fuel injection pressures, and petrol engines vary, but one common thing is that all the high pressure pumps are quite bad at sucking fuel... www.quora.com

Llewelyn Curling, Ph.D.

Professor, Mechanical Engineering & Technology

School of Mathematics, Physics & Technology

Faculty of Pure & Applied Sciences

University of The Bahamas 

https://sites.google.com/site/llewelyncurling/ 

https://sites.google.com/site/smptcobweb/