FUEL FEED CONTROL DEVICE OF DIESEL ENGINE, DIESEL ENGINE AND FUEL FEED CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a fuel feed control device of a diesel engine enabling to stably operate the diesel engine for a long period using mixed oil of petroleum fuel oil and unpurified waste oil, a diesel engine, and a fuel feed control method.;SOLUTION: A fuel feed control device has an operation condition determining means determining whether or not the diesel engine is stably operated in a predetermined time interval and continuing to output determining results as the first, the second, ..., the nth (n is a positive integer) determining information, and a mixing ratio change means changing the mixed ration of the petroleum fuel and the waste oil based on the determining result from the operation condition determining means. The mixing ratio change means stepwisely increases the mixing ratio of the waste oil at the first, the second, ..., the nth stages every time when receiving the determining information that the diesel is stably operated from the operation condition determining means and decreases the mixing ratio of the waste oil when receiving the determining information that the diesel engine is not stably operated from the operation condition determining means.;COPYRIGHT: (C)2013,JPO&INPIT