Justification of structural technological solutions for the restoration of plunger pairs

Abstract

The article explores the relationship of structural technological solutions to recover plunger pairs. The results studied are presented in graphical form. Equipment and devices were selected and developed for the conditions of repair factories and auto repair shops. The mini-technology of restoring high-pressure fuel pump plunger pairs was demonstrated. Fixtures were designed to allow manual sizing of plungers and bushings. For the mechanical finishing of plungers, a construction of a flat-finishing machine with high precision has been developed. Designs of devices for checking piston pairs of diesel cars have been developed. It was found that the hydrostatic properties of the restored plunger pairs meet the requirements imposed on them. A six-stage description of plunger pair restoration technologies and equipment is provided.