Electromagnetic fuel injector with magnetic stop member

Patent · Tue Jan 20 04:00:00 EST 1987

OSTI ID:6778339

Takeda, H

This patent describes an electromagnetically actuated fuel injector of the type that includes a movable core adapted to be electromagnetically driven by a solenoid, a valve seat member defining a valve seat and an injection orifice; and a valve member connected to the movable core for movement therewith into and out of scaling engagement with the valve seat. One of the movable core and the valve member has a flange formed thereon. A stationary stop member is adapted to cooperate with the flange to limit the movement of the valve member away from the valve seat. The improvement described here comprises: means for magnetically biasing the stop member and the flange away from each other to keep the flange closely spaced from the stop member when the valve member is out of sealing engagement with the valve seat.

• Assignee: Nippondenso Co., Ltd., Kariya
• Patent Number(s): US 4637554
• OSTI ID: 6778339
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC PUMPS
ENGINES
EQUIPMENT
FLANGES
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MAGNETS
OPENINGS
ORIFICES
PUMPS
SEALS
SOLENOIDS
SPACE DEPENDENCE
VALVES