CLEARANCE OPTIMIZATION FOR ROLLER-SHOE TRANSMISSION MECHANISM FROM DIESEL HIGH-PRESSURE COMMON RAIL PUMPS

Razvan-Constantin IORDACHE, Carmen BUJOREANU, Dumitru OLARU

Abstract


The roller-shoe drive mechanism is the most important subassembly of the high-pressure pump and it can be severely affected by the wear. The diametral clearance between the mechanical components in direct contact is a parameter that can have a decisive influence on the wear process and also on the lifetime of the assembly. The purpose of our paper is to perform an analytical calculation in order to highlight a range of values of the clearance between the roller and the shoe, where the high-pressure pump can run safely without components damaging.  The results are experimentally validated.  

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