System for measuring the efficiency of vapor recovery installations for gasoline dispensing stations.

摘要

The invention relates to a system and apparatus which are intended for measuring the efficiency of installations for recovering the vapours of hydrocarbons used at service stations. According to the invention, the system for measuring a performance (yield) of the installations for recovering the vapours of hydrocarbons during the filling of a tank (2) of a vehicle including at least one box in order to carry a nozzle (1) on the inside and being placed over a neck (4) of the tank (2) and having a connection via a channel (10) to a device (17, 21) for evaluating the recovered hydrocarbon gas is characterised in that the device for evaluating the recovered gas is a gas meter (counter) (17, 21) and a diaphragm (18, 22) which follows. <IMAGE>