||Evaluation of the Air-Jet Device - Air Bleed.
Gomp, Henry L. ;
||Environmental Protection Agency, Ann Arbor, Mich. Control Device Evaluation Section.
( Automobile engines ;
Air pollution control equipment) ;
Exhaust gases ;
Air pollution ;
Performance evaluation ;
Air pollution control ;
Automobile exhaust ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
A test program was initiated to evaluate the Air-Jet device. This device is basically an engine vacuum actuated valve which allows air to bleed into the engine's PCV system and subsequently to the intake manifold. The device is installed in the PCV line between the crankcase and the carburetor. Installation of the system requires cutting the PCV line and inserting the Air-Jet unit. Baseline and device tests were conducted using a 1970 Valiant equipped with automatic transmission and 225 CID six-cylinder engine. A total of four baseline and four device tests were conducted using the 1975 Federal cold start emission tests. The installation of Air-Jet resulted in moderate reductions of carbon monoxide emissions from the vehicle tested. It did not appear to have any effect on either hydrocarbon or nitrogen oxides emissions beyond changes attributable to normal test variability.