| 摘要 |
<p>A DME fuel feed device of a diesel engine capable of shortening a time for collecting DME fuel in an injection system into a fuel tank after the diesel engine is stopped, wherein, in the state of no injection, a three-way solenoid valve (71) is controlled to OFF to form a communication passage in a direction shown by an arrow B and a two-way solenoid valve (72) is controlled to ON, the DME fuel fed from a feed pump (5) is sent to an aspirator (7) and, after passing from the inlet (7a) to the outlet (7b) thereof, returned to the fuel tank (4) so that the DME fuel can be circulated through the aspirator, a gaseous phase pressure sending pipe open/close solenoid valve (75) is controlled to ON to open the valve to bring into a communicated state a gaseous phase pressure sending pipe (73) connecting gaseous phase (4a) in the fuel tank (4) to the inlet side of an oil reserving chamber (11), and the DME fuel in liquid state remaining in the oil reserving chamber (11), an overflow fuel pipe (8), and an overflow fuel pipe (9) is force-fed to a suction port (7c) by the high pressure of the gaseous phase (4a).</p> |
