Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1983-09-19
1987-06-09
Lazarus, Ira S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
134 20, 134 23, 134169A, F02B 7704, B08B 308
Patent
active
046712305
ABSTRACT:
The method of cleaning a fuel injection type internal combustion engine wherein the engine has a block, a combustion chamber, fuel injectors operatively connected to a fuel tank and a fuel pump, an engine starting mechanism and a fuel supply line connecting the fuel tank and the fuel injectors with the fuel pump imposed in the fuel supply line, and a fuel return line connecting the fuel injectors and the fuel tank, wherein the fuel pump is rendered inoperative and the fuel return line is blocked. A combination of fuel and cleaning fluids is imposed under pressure into the fuel supply line. The engine is then started and operated on the supply of fuel and cleaning fluid which have passed through the fuel injectors. After the engine has been operated for a period of time, perhaps 15 minutes or so, the engine is shut off, the fuel return line is unblocked, and the fuel pump is restored to its original condition. The apparatus of cleaning a fuel injection-type fuel combustion engine is disclosed including a pressure tank or container having an inlet port for air under pressure. The tank has a pressure gage and an outlet pipe which leads to a filter mechanism. An outlet pipe from the filter mechanism has a fitting which is adapted to be connected to the fuel supply line of a fuel injection-type internal combustion engine.
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