IMPACT OF CHANGES IN FRICTION FACTOR ON THE LOADING OF THE PUMPING SECTION IN A HIGH PRESSURE INJECTION PUMP

Rafał Smolec; Mateusz Bor; Marek Idzior; Wojciech Karpiuk; Tomasz Borowczyk

Rafał Smolec Poznan University of Technology, Faculty of Machines and Transport
Mateusz Bor Poznan University of Technology, Faculty of Machines and Transport
Marek Idzior Poznan University of Technology, Faculty of Machines and Transport
Wojciech Karpiuk Poznan University of Technology, Faculty of Machines and Transport
Tomasz Borowczyk Poznan University of Technology, Faculty of Machines and Transport

Keywords: cam, common rail, high pressure fuel pump, friction

Abstract

The operational problems of currently manufactured high-pressure injection pumps are related to the use of fuels with inadequate lubricating properties. Even one-time use of fuel that does not meet the requirements assumed by the manufacturer may lead to irreversible changes in the structure of joints, which is tantamount to, among other things, change of the friction coefficient and attenuation in mobile nodes. This article presents and compares the results of dynamic simulation performed in the Autodesk Inventor Professional environment, in which the influence of changes of the friction coefficient value in the mobile nodes of pumps with cam drive and hypocycloid drive on loading of the pumping section was analyzed

Keywords
cam, common rail, high pressure fuel pump, friction