Injection pump with radially mounted spill control valve

Patent · Tue May 26 04:00:00 EDT 1987

OSTI ID:6484963

Djordjevic, I

This patent describes a rotary fuel injection pump for an internal combustion engine,. The method comprises: a housing, a rotor rotatable in the housing, a charge pump having radially extending plunger bores in the rotor and a plunger pump for each plunger bore having a pumping plunger reciprocable in the bore. The pumping plunger has outward fuel tank strokes and inward fuel delivery strokes for supplying high pressure charges of fuel for fuel injection. A cam ring surrounds the rotor and is engageable with the plunger pumps to reciprocate the plungers as the rotor rotates. A spill control mechanism has spill valve means connected to the charge pump for spill control of the high pressure charge of fuel. The improvement consists of the spill valve means which comprises at least one rotary spill valve having a valve bore in the rotor oriented transversely to the axis of the rotor and connected to the charge pump through pump passage means and a rotary spill valve member rotatably mounted within the valve bore; and the spill control mechanism.

• Assignee: Stanadyne, Inc., Windsor, CT
• Patent Number(s): US 4667641
• OSTI ID: 6484963
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
MOTION
PUMPS
ROTATION
ROTORS
SYNCHRONIZATION
VALVES
VEHICLES