| 摘要 |
<p>PURPOSE:To prevent a decrease of output of an engine when an electric heater is operated, by providing an injection amount increasing device of fuel in the Diesel engine, which incinerates fine particles in a filter in an exhaust passage by the electric heater, so as to operate said increasing device when the heater is electrified. CONSTITUTION:If a detected pressure by a block detector sensor 10 increases higher than the prescribed set pressure at idling operation of an engine 1, a controller 11 recognizes a filter member 6 to be blocked, and a block signal A is applied to an electrifying device 8 and a correction device 12. Then the electrifying device 8 is turned on to open an electrifying circuit to an electric heater 7, allowing the electric current of a battery 9 to flow in the heater 7, and the heater generates heat to incinerate fine particles of carbon in the filter member 6. While a selector valve 17 of the correction device 12 opens a negative pressure introducing passage 15, and negative pressure by a vacuum pump 16 is introduced into a negative pressure chamber 14b in a diaphragm device 14, rotating a working lever 13 counterclockwise while turning a control lever 4a a little clockwise, thus a little more amount of fuel than the minimum injection is supplied from an injection pump 4.</p> |
