Carbon-cleaning apparatus for diesel engines
AssigneeParker Automotive Corporation
InventorTimothy A. Taylor
Life of this patent
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Abstract
A carbon-cleaning apparatus for diesel engines having an independent fuel-flow system including a diesel/chemical mixture fuel tank adapted to be interconnected to a diesel engine at the engine's fuel injection, there being an electronic control and monitoring system to operate the fuel-flow system during the cleaning operation of the engine.
Claims19
A carbon-cleaning apparatus for diesel engines, wherein said apparatus defines an independent fuel system attachable to the diesel engine by way of the fuel-injection pump of the engine so as to temporarily replace the engine's closed fuel system, said apparatus comprising:
- a fuel/chemical mixture tank having at least two fuel lines including an outlet line and a return line, said outlet and return lines being connected to the respective inlet and outlet ports of the engine's fuel-injection pump;
- a fuel pump interposed in said outlet line whereby said fuel/chemical mixture is pumped to the engine's fuel-injection pump;
- a filter means interposed in said outlet fuel line between said mixture tank and said fuel pump;
- and
- a circuit means for controlling the proper operation of said apparatus and the diesel engine being cleaned, said circuit being connected in series with the engine's fuel shut-off circuit.
A method of cleaning carbon deposits from a diesel engine by means of a carbon-cleaning apparatus having an independent fuel system without the need to dismantle said diesel engine, said method comprising the steps of:
- disconnecting and plugging the inlet and return fuel lines of said engine;
- attaching an output and return line of said independent fuel system to said engine in place of said engine's fuel lines;
- storing a fuel/chemical mixture in a mixture tank, said output and return fuel lines of said independent fuel system being indirectly and directly connected to said engine;
- storing fuel in an auxiliary supply tank wherein said auxiliary supply tank is connected to said mixture tank whereby fuel from said auxiliary tank may be transferred as needed to said mixture tank;
- arranging said independent fuel system so as to be defined by a fuel/chemical flow sub-system and a fuel flow sub-system as required, wherein said fuel/chemical flow sub-system transfers the mixture fuel from said mixture tank to said engine, the excess mixture fuel being returned to said mixture tank while said engine is operating, and wherein said fuel flow sub-system transfers fuel from said auxiliary tank to said mixture tank.
Dependencies are inferred from the claim text.