Increasing the life of plunger and barrel assembly of high pressure fuel pumps

M.N Salikhova,V.S Kukhar,A.M Chudinov,V.A Aleksandrov,I.P Galchak,O Loretts,O Nazarova,A Ruchkin,V Kukhar,M Karpukhin

doi:10.1051/e3sconf/202128207023

Abstract

In order to identify the regularities of further increasing the efficiency of transport and technological machines, it is of interest to consider the issues of determining the impact of their design and technological parameters on the quality of running-in and the operability of fuel pumps. The article analyzes the influence of the initial operating modes and the lubricating medium on the quality of running-in and subsequent performance of high-pressure fuel pumps. On the basis of theoretical studies, equations were obtained to determine the unbalanced radial force acting on the plunger and fuel leaks in the plunger pair. These expressions make it possible to establish the dependence of the specific pressure in the plunger and barrel assembly both on the design and technological parameters of the pump.

Highlights

Transport and technological machines used at the enterprises of the agro-industrial complex are equipped with diesel engines
The efficiency of using diesel engines largely depends on the technical condition of the fuel equipment, which accounts for up to 50% of failures [1,2]
High-pressure fuel pump malfunctions are determined by the technical condition of precision parts, in particular, plunger pairs

Summary

Introduction

Transport and technological machines used at the enterprises of the agro-industrial complex are equipped with diesel engines. The efficiency of using diesel engines largely depends on the technical condition of the fuel equipment, which accounts for up to 50% of failures [1,2]. In this regard, high requirements are imposed on the fuel systems of diesel engines related to their efficiency, reliability, durability, ease of maintenance and repair, etc. High-pressure fuel pump malfunctions are determined by the technical condition of precision parts, in particular, plunger pairs. Purpose of the study: Increasing the service life of plunger and barrel assembly of high pressure fuel pumps Determination of the dependences of the specific pressure in the plunger pair on the design and technological parameters of the high-pressure fuel pump. Object of research: interfaces in the high-pressure fuel pump, which determine the running-in of the fuel pump as a whole

Materials and Methods

Findings

Conclusion