System for cleaning internal combustion engines

Details System for cleaning internal combustion engines System for cleaning internal combustion engines

1992-10-30

1995-01-24

Coe, Philip H.

Cleaning and liquid contact with solids

Apparatus

Automatic controls

134 951, 134 981, 1341031, 134108, 134111, 134113, 134169A, B08B 908

Patent

active

053834810

ABSTRACT:
An apparatus for cleaning internal combustion engines in which a cleaning fluid is cyclically drawn from a reservoir by a pump, flushed through the block of the internal combustion engine, and returned to the reservoir by the pump, is improved by providing it with a pair of cleaning fluid reservoir tanks. Also, tank selection valves alternatively couple one or the other of the reservoir tanks to the pump, to the exclusion of the other tank. In one application of the improved apparatus one tank can be dedicated for use to clean gasoline powered internal combustion engines to preserve the characteristic color of the cleaning fluid, while the other tank can be utilized to clean diesel powered internal combustion engines. In another application the system is operated through first flushing and soaking periods and through second flushing and soaking periods. A first tank in the pair is used to initially pump and recover cleaning fluid during the first flushing and soaking periods. The other tank in the pair is then used to subsequently pump and recover cleaning fluid during the second flushing and soaking periods. The useful life of the cleaning fluid used during the final flushing and soaking periods is thereby prolonged.

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