Heat exchange – With cleaning means for heat exchanger
Patent
1983-08-15
1985-11-19
Cuchinski, Jr., William A.
Heat exchange
With cleaning means for heat exchanger
285 86, 285177, F28G 112
Patent
active
045535876
ABSTRACT:
A backflush coupling and method for flushing the cooling system of an internal combustion engine. The preferred method comprises cutting the coolant discharge hose which extends from the engine to a heater and installing the male and female connector halves of a backflush coupling into the cut ends. The installed backflush coupling constitutes a conduit for normal coolant flow. The coupling is disconnectable for attachment of a flushing hose to the female connector half, the male connector serving as a drain. A union sleeve facilities assembly and disassembly of the coupling connector halves. The coupling is adapted to fit within heater hoses of different sizes, and certain embodiments signal over pressurization of the cooling system, reveal condition of the coolant and indicate general rate of flow, and provide for air induction for mixture with the flushing liquid. A locking device prevents inadvertent separation of the coupling connector halves.
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