| 摘要 |
<p>PURPOSE:To stabilize combustion and permit a minute-particle filter to be regenerated at any operation point by detecting the engine revolution number and the exhaust-gas temperature or the revolution number and the rack position of an injection pump and obtaining an operation point and adjusting the light-oil flow-rate to a regenerating burner and the exhaust-gas distribution ratio. CONSTITUTION:The exhaust gas generated from an engine 1 is discharged outside a car from a muffler 6 through an exhaust pipe 2, exhaust-gas distributor 8, mixer 4, and a filter 5a. It is enough only to control each flow-rate of exhaust gas and light oil which are sent into a regenerating burner 3 in order to permit stabilized operation of a filter regenerator equipped with the regenerating burner 3. Since the rack position of an injection pump corresponds to the torque on coordinate, an operation point is obtained from the revolution number and the rack position. Since the coordinate value is obtained from the exhaust-gas temperature and the revolution number, the operation point can be obtained similarly. Therefore, when the light-oil flow-rate and the exhaust- gas distribution ratio are written-in as map beforehand, a fuel flow-rate controller 9a and an exhaust-gas distributor 8 are operated so that the light-oil flow-rate and the exhaust-gas distribution ratio which correspond to said operation point can be obtained. Thus, the fuel for the regenerating burner is always stabilized, and the filter can be regenerated.</p> |
