Method of removing particles in an injector of a diesel engine, apparatus for performing the same and diesel engine including the apparatus
AssigneeHyundai Doosan Infracore Co., Ltd.
InventorHyoungmin Han
Life of this patent
Estimating the term…
Abstract
In a method of removing particles in an injector of a diesel engine, a stop of the diesel engine may be recognized. An injection signal may be inputted into the injector of the stopped diesel engine. A control valve of the injector may be moved in a low-pressure passage by the injection signal to remove the particles accumulated on an inner wall of the low-pressure passage. Thus, a malfunction of the control valve caused by the particles may be previously prevented.
Claims11
A method of removing particles in an injector of a diesel engine, the method comprising:
- recognizing a stop of the diesel engine;
- inputting an injection signal to the injector of the stopped diesel engine;
- and
- moving, while the diesel engine is stopped, a control valve of the injector in a low-pressure passage of the injector by the injection signal, wherein
- the control valve is movably arranged in the low-pressure passage for controlling a flow of a fuel from a high-pressure passage of the injector to the low-pressure passage, and
- an outer surface of the control valve is positioned adjacent to an inner wall disposed within the low-pressure passage and moves along the inner wall of the low-pressure passage to remove particles accumulated on the inner wall of the low-pressure passage.
An apparatus for removing particles in an injector of a diesel engine, the apparatus comprising:
- a controller configured to recognize a stop of the diesel engine and to input an injection signal to the injector of the stopped diesel engine;
- and
- a control valve configured to move, while the diesel engine is stopped, in a low-pressure passage of the injector by the injection signal, wherein
- the control valve is movably arranged in the low-pressure passage for controlling a flow of a fuel from a high-pressure passage of the injector to the low-pressure passage, and
- an outer surface of the control valve is positioned adjacent to an inner wall disposed within the low-pressure passage and configured to move along the inner wall of the low-pressure passage to remove particles accumulated on the inner wall of the low-pressure passage.
A diesel engine comprising:
- a controller configured to recognize a stop of the diesel engine and to input an injection signal to an injector of the stopped diesel engine;
- and
- a particle-removing apparatus including a control valve, the control valve being configured to move, while the diesel engine is stopped, in a low-pressure passage of the injector by the injection signal, wherein
- the control valve is movably arranged in the low-pressure passage for controlling a flow of a fuel from a high-pressure passage of the injector to the low-pressure passage, and
- an outer surface of the control valve is positioned adjacent to an inner wall disposed within the low-pressure passage and moves along the inner wall of the low-pressure passage to remove particles accumulated on the inner wall of the low-pressure passage.
Dependencies are inferred from the claim text.