| 摘要 |
<p>The device comprises (a) means (21) for insulating the cartridge from the outside air and for connecting the vapour circuit (1, 3, 3') of the recovering system on the one hand, to the intake port (4) of the engine and, on the other hand, to an outlet line (11) for the exhaust gases from the engine so as to sweep the cartridge (1) with these gases under the effect of the suction developed in the intake port (4), (b) means (10) for selectively activating these insulation and connection means, (c) means (18) for then measuring the richness in oxygen of the air/fuel mixture supplying the engine, and (d) means for comparing the richness measured with a predetermined value in order to deduce the presence of a break in the vapour circuit from any exceeding of this predetermined value by the measured richness in oxygen.</p> |
