US5107698 1991年4月5日 1992年4月28日 Gilliam; Leslie Smoke generating apparatus and method for in situ vacuum leak detectionUS5107698 * Apr 5, 1991 Apr 28, 1992 Leslie Gilliam Smoke generating apparatus and method for in situ vacuum leak detection...
In accordance with the present invention, smoke is generated from a suitable smoke-generating fluid in chamber means, and then sealably communicated through conduit means to the intake manifold of a vacuum system in an internal combustion engine. By visibly observing smoke exiting from any of the...