F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
123/257, 121/75
F02B 77/00 (2006.01)
Patent
CA 1054006
SECONDARY AIR SUPPLY FOR VEHICLE ACCESSSORIES Abstract of the Disclosure A vehicle engine secondary air system with an engine driven pump supplying air to the engine exhaust system is modified to supply air at consistently adequate pressure to one or more engine or vehicle accessories. The normal diverter valve unit has its diverter port replaced by a non-closable accessory air outlet, which opens through a check valve to an accumulator tank and an expansible chamber motor. The expansible chamber motor has a movable diaphragm which controls a valve associated with the activation chamber of the diverter unit. When accumulator tank pressure falls below a reference level, the diaphragm opens the valve to admit air of at least atmo- spheric pressure to the normally less than atmospheric activa- tion chamber, whereby the diverter valve closes the exhaust outlet and pump outlet pressure rises to recharge the accumulator tank above the reference level.
230155
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