Electromagnetic fuel injector

Patent · Mon Jan 13 23:00:00 EST 1986

OSTI ID:6023889

Takada, S; Makimura, T; Matsubara, M

This patent describes an electromagnetic fuel injector for an internal combustion engine. This device is seated in a valve housing with a fuel injection nozzle and a valve seat at its front end and a guide hole extending along its axis to contain the valve body. The valve body of this device includes a cylindrical slide unit which has a fuel passage within it. A compression spring to allow the valve body to close the fuel injection nozzle is also described. Other components characteristic of this device are an armature fixed to the rear of the valve body, a fixed magnet core positioned selectively and having a fuel passage extending through its central portion, and an exciting coil surrounding the fixed magnet core. An electromagnetic housing combines the valve housing with the fixed magnet core. The described fuel injector discharges pressurized fuel when the exciting coil receives a control signal to open the valve body through an annular fuel passage.

• Assignee: Aisan Kogyo Kabushiki Kaisha, Aichi
• Patent Number(s): US 4564145
• OSTI ID: 6023889
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ARMATURES
COMPRESSION
CONTROL EQUIPMENT
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ENERGY-LEVEL TRANSITIONS
ENGINES
EQUIPMENT
EXCITATION
FLOW REGULATORS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MAGNET CORES
MAGNETS
NOZZLES
PRESSURIZING
SPRINGS
VALVES