F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
Procede de realisation d'une rampe a huile dans un carter cylindres d'un moteur a combustion interne pour vehicule automobile, noyau de moulage pour la mise en oeuvre d'un tel procede, carter cylindres et moteur ainsi obtenus