Patent ID: 6923159
Filing Date: 2005-08-02
Classification: F02D,F02M

Abstract:
1. A diesel engine comprising: a high-pressure pump driven by a crankshaft of the engine to supply fuel in a fuel tank to a common rail; an electric priming pump provided in a fuel passage extending from the fuel tank to the high-pressure pump; a control device to control the electric priming pump; engine rotating speed detection means to detect a rotating speed of the crankshaft of the engine; and common rail pressure detection means to detect a pressure within the common rail, wherein the control device drives the electric priming pump when the engine is started, if a state that the engine rotating speed detected by the engine rotating speed detection means is higher than a predetermined first rotating speed and the common rail pressure detected by the common rail pressure detection means is lower than a predetermined first pressure continues for a period being equal to or more than a predetermined first period.