Exhaust gas purifying system having a diaphragm type control...

Details Exhaust gas purifying system having a diaphragm type control... Exhaust gas purifying system having a diaphragm type control...

F - Mech Eng,Light,Heat,Weapons

01

N

172/18

F01N 3/10 (2006.01) F01N 3/22 (2006.01)

Patent

CA 1061720

EXHAUST GAS PURIFYING SYSTEM HAVING A DIAPHRAGM TYPE CONTROL VALVE ABSTRACT OF THE DISCLOSURE In a system comprising a diaphragm type control valve, a plurality of orifices and a thermo sensitive valve, the valve opening or closing period of the diaphragm type control valve is changed longer or shorter by changing one of said orifice to another by the thermo sensitive valve in response to tempera- ture relative to the engine operating condition, whereby exhaust gas purification is well attained with complete prevention of afterburn.

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