Cleaning tool assembly and method for cleaning a fuel injector
OwnerRobert W. Brooksinventor
Life of this patent
Estimating the term…
Abstract
A method of cleaning a fuel injector of an engine includes providing a cleaning tool assembly having a chamber adapted to receive cleaner and fuel therein. The cleaning tool assembly is connected to the engine and to a transfer pump adapted to provide fuel to the engine from a fuel tank. The engine is started, and pressure is created in the chamber of the cleaning tool assembly, such that cleaner flows out of the chamber and is supplied to the engine. The cleaning tool assembly transitions from supplying cleaner or a mixture of cleaner and fuel to the engine to supplying fuel to the engine.
Claims25
A method of cleaning a fuel injector of an engine having a fuel injection system, including a fuel tank and a transfer pump adapted to supply fuel from the fuel tank to the engine, comprising:
- providing a cleaning tool assembly having a chamber adapted to receive cleaner and fuel therein;
- connecting the cleaning tool assembly to the engine and the transfer pump;
- starting the engine;
- supplying at least one of cleaner and fuel to the chamber of the cleaning tool assembly via the transfer pump, wherein the at least one of cleaner and fuel creates pressure in the chamber and one of cleaner and a mixture of cleaner and fuel flows out of the chamber;
- supplying the one of cleaner and a mixture of cleaner and fuel from the chamber to the engine;
- transitioning from supplying one of cleaner and a mixture of cleaner and fuel to the engine to supplying fuel to the engine.
A cleaning tool assembly for a fuel injector of an engine having a fuel injection system including a fuel tank and a transfer pump, said tool assembly comprising:
- a housing defining a chamber adapted to receive cleaner and fuel therein;
- a conduit in fluid communication with said chamber and adapted to be in fluid communication with a fuel line connected to the engine;
- wherein the transfer pump creates pressure in said chamber to force at least one of cleaner and fuel contained in said chamber into and through said conduit, wherein said conduit is adapted to supply the at least one of cleaner and fuel to the engine via said fuel line.
A method of cleaning a fuel injector of an engine having a fuel injection system, including a fuel tank and a transfer pump, comprising:
- providing a cleaning tool assembly defining a chamber;
- dividing said chamber into a cleaner portion adapted to receive cleaner and a fuel portion adapted to receive fuel;
- connecting said cleaning tool assembly to the engine, the fuel tank and the transfer pump;
- starting the engine, wherein the transfer pump supplies fuel from the fuel tank to said fuel portion of said chamber, wherein the fuel creates pressure in said fuel chamber and cleaner flows out of said cleaner chamber;
- supplying the cleaner to the engine;
- and
- transitioning from supplying cleaner to the engine to supplying fuel to the engine.
A cleaning tool assembly for a fuel injector of an engine having a fuel injection system including a fuel tank, a transfer pump, said cleaning tool assembly comprising:
- a housing defining an interior volume;
- a piston positioned inside said housing for separating said interior volume into a cleaner portion adapted to receive cleaner and a fuel portion adapted to receive engine fuel from the transfer pump;
- a tube operatively engaged with said piston, said tube having an opening in fluid communication with either said cleaner portion or said fuel portion as a function of a position of said piston, said tube adapted to be connected to a fuel line connected to the engine;
- wherein the engine fuel supplied by the transfer pump creates pressure in the fuel chamber that causes said piston to travel along said tube to an opposite side of said opening in said tube, wherein the movement of said piston transitions said opening from receiving cleaner from said cleaner portion to receiving engine fuel from said fuel portion.
A cleaning tool assembly for a fuel injector of an engine having a fuel injection system including a fuel tank and a transfer pump, said tool assembly comprising:
- a housing defining a chamber adapted to receive cleaner and fuel therein;
- a conduit in fluid communication with said chamber and adapted to be in fluid communication with a fuel line inlet adapted to transfer fuel from the fuel tank to the engine;
- a valve adapted to be connected to the engine via a fuel line outlet, wherein the engine supplies at least one of fuel and cleaner to said chamber via said valve;
- wherein the at least one of fuel and cleaner supplied to said chamber creates pressure in said chamber, wherein the pressure in said chamber forces at least one of cleaner and fuel contained in said chamber into and through said conduit, wherein said conduit is adapted to supply the at least one of cleaner and fuel to the fuel line inlet and to the engine;
- and
- wherein the fuel supplied to the chamber dilutes the cleaner.
Dependencies are inferred from the claim text.