Abstract
Design a New Pressure Regulating Valve for Fuel Injection Pump of Diesel Engine - written by Aishwarya Krishnat Jadhav , Dr. S. G. Joshi , P. D. Maskar published on 2020/09/12 download full article with reference data and citations
Highlights
Recent technologies in Diesel engines are driving a requirement for better and precise Fuel System with higher pressure requirements
The factors considered for design are listed below: (i) Design of a plunger is carried out based on the calculations including flow, pressure, flow area required for bypassing fuel and the spring force. (ii)Spring design is done by considering factors like packaging space, desired spring stiffness, maximum operating load on the spring. (iii) Cap screw design is carried out based on the axial forces acting, leakage considerations, friction torque required to tighten the screw according to ISO standards
Corresponding values of pressure and flow at outlet of Pressure Regulating Valve (PRV) fixture were recorded. These values were compared with the performance table of pump and the values obtained from Computational Fluid Dynamics (CFD) analysis
Summary
Recent technologies in Diesel engines are driving a requirement for better and precise Fuel System with higher pressure requirements. The symbolic representation of PRV used in hydraulic circuit is shown in figure 1.2 It is spring loaded normally closed valve. When a pressure in a circuit i.e., at LPP outlet exceeds a preset value of, plunger lifts from its seat and allows a fuel flow through it. This fuel is bypassed to either tank or recirculated back to LPP inlet.[8]. Key components of Fuel System include Low Pressure Pump (LPP), Pressure Regulating Valve (PRV), High Pressure Pump (HPP), Common Rail and Injectors. PRV is placed in between LPP and HPP It regulates pressure in the circuit before fuel enters in HPP. Gear pump (LPP) rated flow and pressure at various speeds
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
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
