Vapour recovery system in fuel filling installations.

摘要

A system for vapour recovery in fuel filling installations without the use of seal members between the delivery gun (11) and the filler pipe (3) of the vehicle to be refuelled, comprising control means (15) which in response to electrical signals indicative of the volumetric fuel delivery rate render the volumetric draw-in rate of said recovery means always greater than said volumetric fuel delivery rate; a preferred embodiment of said control means is also described.