THERMACTOR Systems: Description

The Thermactor Exhaust Emission Control System reduces carbon monoxide (CO) and hydrocarbon (HC) content of exhaust gases. It injects fresh air into the exhaust gas stream as it leaves the combustion chamber, allowing continued combustion of unburned gases. A typical system consists of the following components: Air supply pump with centrifugal filter, air bypass valve, check valve(s), air manifold and air hoses. Individual systems vary in number and type of components dependent upon engine size and application.

The Managed Thermactor Air (MTA) System uses the same basic components but "manages" thermactor air according to operating conditions. Air is bypassed to atmosphere by a Thermactor Air Bypass (TAB) valve, directed upstream near the exhaust manifold or downstream to the underbody catalytic converter by the Thermactor Air Diverter (TAD) valve.