Fuel injection pump

Patent · Tue May 22 04:00:00 EDT 1984

OSTI ID:6142280

Luscomb, D A

A fuel injection pump including a plunger and a piston movably disposed in a pumping chamber, means for initiating fuel injection and means for terminating fuel injection, the plunger periodically pressurizing fuel in a pressure chamber and the piston spaced from the plunger and allowing a metering chamber to fill with a metered quantity of fuel to be injected to an engine. The means for initiating injection comprises a pilot valve having a solenoid to selectively operate between either of two states and a control valve movable between first and second positions in response to the state of pilot valve, the first position filling the metering chamber with the metered quantity of fuel. The pilot valve determines the fuel quantity to be delivered to the engine relative to a signal from an electronic controller. An accumulator is pressurized during each cycle of the plunger to provide pressurized fuel during a metering phase. A variable orifice adjusts the rate of flow during the time fuel is being metered to metering chamber.

• Assignee: The Bendix Corp.
• Patent Number(s): US 4449503
• OSTI ID: 6142280
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
DESIGN
ELECTRIC CONTROLLERS
ENGINES
EQUIPMENT
FLOW RATE
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
OPENINGS
ORIFICES
PISTONS
PRESSURIZING
PUMPS
SIGNALS
VALVES