DME fuel supply device for diesel engine

Details DME fuel supply device for diesel engine DME fuel supply device for diesel engine

2008-01-15

2008-01-15

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C123S514000, C123S526000

Reexamination Certificate

active

07318423

ABSTRACT:
In the DME fuel supply device for a diesel engine, the time necessary to retrieve DME fuel remaining in the injection system after stopping the diesel engine into the fuel tank can be reduced. In a non-injection state, a three-way valve (71) is controlled to be OFF to form a communication passage in the direction indicated by the arrow B and a two-way valve (72) is controlled to be ON. DME fuel delivered from a feed pump (5) is delivered to an aspirator (7), passed from an inlet (7a) to the outlet (7b) thereof and returned to a fuel tank (4). That is, the DME fuel circulates via the aspirator. A vapor-phase pressure delivery pipe switching solenoid valve (75) is controlled to be ON and opened so that flow can pass through a vapor-phase pressure delivery pipe (73) connecting the vapor-phase (4a) in the fuel tank (4) and the inlet of the fuel gallery (11). DME fuel in a liquid state remaining in the fuel gallery (11), an overflow fuel pipes (8) and (9) is delivered under pressure to a suction port (7c) by the high pressure of the vapor-phase (4a).

REFERENCES:
patent: 5074272 (1991-12-01), Bostick et al.
patent: 6805105 (2004-10-01), Kato et al.
patent: 6918370 (2005-07-01), Yamaoka et al.
patent: 2005/0235948 (2005-10-01), Hayasaka et al.
patent: 2006/0054141 (2006-03-01), Nozaki et al.

Affiliated with

Also associated with

Rating

DME fuel supply device for diesel engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DME fuel supply device for diesel engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DME fuel supply device for diesel engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2813161