Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1996-05-10
1997-04-15
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel injection system
123450, F02M 4100, F02M 700
Patent
active
056199708
ABSTRACT:
An accumulator type fuel injection system has a cam actuated plunger pump for charging an accumulator chamber with fuel under pressure and valve means which in one position connects the accumulator chamber with a fuel delivery passage to cause delivery of fuel and in its other position to connect the delivery passage to a drain channel to terminate delivery of fuel. The drain channel includes a restrictor. The system includes a piston slidable in a cylinder having one end connected to the plunger pump through a valve and to the outlet of a low pressure pump. The other end of the cylinder is connected to the drain channel upstream of the restrictor. The piston acts to displace fuel in the one end of the cylinder to the plunger pump when the valve means is moved to its second position.
REFERENCES:
patent: 5363824 (1994-11-01), Bonse
patent: 5462028 (1995-10-01), Buckley
patent: 5564394 (1996-10-01), Wood
Lucas Industries, Public. Limited Company
Moulis Thomas N.
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