An engine control apparatus controls includes a cleaning mode to clean a deposit generated in an intake system of an engine. The engine control apparatus includes a generation source calculator, a deposit calculator, and a mode controller. The generation source calculator is configured to calculate an attached generation source amount on the basis of a temperature of the intake system. The attached generation source amount is an amount of a generation source, of the deposit, attached to the intake system. The deposit calculator is configured to calculate an attached deposit amount that is an amount of the deposit attached to the intake system, on the basis of the attached generation source amount and the temperature of the intake system. The mode controller is configured to execute the cleaning mode, when the attached deposit amount is greater than an execution threshold.

The invention includes a system to reduce deposits from a surface of an intake valve, preferably in a GDI engine. The system includes a delivery device having a reservoir for holding a cleaning agent. The reservoir has a body that defines an interior space, and an outlet port in fluid communication with the interior space of the reservoir body. The delivery device has a delivery conduit that extends from the outlet port and terminates at a distal end. The proximal end of the delivery conduit is in fluid communication with the outlet port. An actuator having an open position and a closed position is included in the delivery device. Upon activation of the actuator from a closed position to an open position, a portion of the cleaning agent flows from the interior space through the outlet port and is delivered under pressure to distal end of the delivery conduit.

A method of cleaning a clutch included in a drive train is disclosed in this paper. The method includes dispensing a cleaning agent, preferably a foamed cleaning agent, into the clutch. The clutch optionally includes clutch plates with evacuation channels formed in the clutch plates designed to carry cleaning agent and/or debris away from engagement surfaces of the clutch plates.

The invention includes a system to reduce deposits from a surface of an intake valve, preferably in a GDI engine. The system includes a delivery device having a reservoir for holding a cleaning agent. The reservoir has a body that defines an interior space, and an outlet port in fluid communication with the interior space of the reservoir body. The delivery device has a delivery conduit that extends from the outlet port and terminates at a distal end. The proximal end of the delivery conduit is in fluid communication with the outlet port. An actuator having an open position and a closed position is included in the delivery device. Upon activation of the actuator from a closed position to an open position, a portion of the cleaning agent flows from the interior space through the outlet port and is delivered under pressure to distal end of the delivery conduit. The cleaning agent includes a detergent, a carrier, and an oil. In a preferred embodiment, the system is an aerosolized. Also contemplated with the scope of the invention are related methods of removing deposits from the surface of an intake valve and/or of enhancing or improving engine performance.

A method of cleaning a clutch included in a drive train is disclosed in this paper. The method includes dispensing a cleaning agent, preferably a foamed cleaning agent, into the clutch. The clutch optionally includes clutch plates with evacuation channels formed in the clutch plates designed to carry cleaning agent and/or debris away from engagement surfaces of the clutch plates.

A method of cleaning a clutch included in a drive train is disclosed in this paper. The method includes dispensing a cleaning agent, preferably a foamed cleaning agent, into the clutch. The clutch optionally includes clutch plates with evacuation channels formed in the clutch plates designed to carry cleaning agent and/or debris away from engagement surfaces of the clutch plates.

A method is provided involving a gas turbine engine system. The method includes configuring a plug within a fluid passage in the gas turbine engine system, where the plug is between first and second portions of the fluid passage. Material is removed from an interior surface of the fluid passage in the first portion of the fluid passage to provide removed material, where the plug substantially prevents the removed material from entering the second portion of the fluid passage. The removed material is directed out of the fluid passage. The plug is removed from the fluid passage.

A pneumatic and hydraulic testing and cleaning kit for gasoline type fuel injectors used in electronic fuel injection systems on most cars today. The tester/cleaner apparatus includes a stand with pneumatic quick disconnect for applying air and a solvent in pulses at 35 to 55 psi to clean dirty fuel injectors.

An engine control apparatus controls includes a cleaning mode to clean a deposit generated in an intake system of an engine. The engine control apparatus includes a generation source calculator, a deposit calculator, and a mode controller. The generation source calculator is configured to calculate an attached generation source amount on the basis of a temperature of the intake system. The attached generation source amount is an amount of a generation source, of the deposit, attached to the intake system. The deposit calculator is configured to calculate an attached deposit amount that is an amount of the deposit attached to the intake system, on the basis of the attached generation source amount and the temperature of the intake system. The mode controller is configured to execute the cleaning mode, when the attached deposit amount is greater than an execution threshold.

A fluid injection system includes a fluid injector assembly, a fluid conditioning module having an outlet port that is fluidly coupled to an inlet port of the fluid injector assembly via an injector assembly inlet conduit. The fluid injection system further includes a flush conduit fluidly coupled to the outlet port of the fluid conditioning module, a flush valve disposed in the flush conduit and configured to control a flowrate of fluid therethrough, and a controller operatively coupled to the fluid conditioning module and the flush valve, the controller being configured to adjust a flowrate of a fluid through the injector assembly inlet conduit by controlling a flowrate of fluid through the flush conduit.