APPAREIL POUR INTRODUIRE DE L'ANTIGEL DANS UN SYSTEME A AIR COMPRIME

摘要

A device for feeding antifreeze agent into a pneumatic system is proposed which has a pump (2) with a stepped plunger (5). One plunger (6) of the stepped plunger (5) is the working plunger and the other (4) is the pump plunger. The stepped plunger (5) has a through-bore (32) which passes completely through it and via which the antifreeze agent passes from the inflow side to the compressed-air system. In this way, a compact antifreeze pump is created which is especially suitable for fitting in compressed-air brake systems of motor vehicles. <IMAGE>