F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
103/2
F02M 51/04 (2006.01) F02M 39/00 (2006.01) F02M 59/32 (2006.01) F02M 59/36 (2006.01)
Patent
CA 1178846
370-80-0910 Abstract: FUEL INJECTION PUMP A fuel injection pump (100) including a plunger (2) and a piston (1) movably disposed in a pumping chamber (17), means for initiating (3, 5) fuel injection and means for terminating (13, 30, 29) fuel injection, the plunger periodically pressurizing fuel in a pressure chamber (44) and the piston (1) spaced from the plunger and allowing a metering chamber (16) to fill with a metered quantity of fuel to be injected to an engine. The means for initiating injection comprise a pilot valve (5) having a solenoid to selectively operate between either of two states and a spool valve (3) movable between first and second positions in response to the state of pilot valve (5), the first position filling the metering chamber with the metered quantity of fuel. The pilot valve (5) determines the fuel quantity to be delivered to the engine relative to a signal from an electronic controller. An accumulator (4) is pressurized during each cycle of the plunger to provide pressurized fuel during a metering phase. A variable orifice (15) adjusts the rate of flow during the time fuel is being metered to metering chamber (16). FIGURE 8
395635
Bendix Corporation (the)
Macrae & Co.
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