Electromagnetic fuel injector

Patent · Tue Apr 07 04:00:00 EDT 1987

OSTI ID:6811799

Taxon, M N; Maguran, G A

This patent describes an electromagnetic fuel injector for an internal combustion engine having a valve axis and including a housing, a flat armature connected to a movable valve element arranged to cooperate with a valve seat, spring means for exerting a force in an axial direction on the armature, and an electromagnetic means for exerting a force in an opposite direction on the armature when electrically energized. The improvement described here comprises: the armature being generally circular and having a portion contoured to define a pivot axis for pivoting engagement with a stationary portion of the fuel injector, the pivot axis including at least two points defining the endpoints of a chord of the armature; and means for concentrating the force applied to the armature by the spring means such that the greater axial spring force is applied to the armature to that side of the valve axis remote from the pivot axis thereby to effect pivoting of the armature about the pivot axis.

• Assignee: United Technologies Diesel Systems, Inc., Springfield, MA
• Patent Number(s): US 4655396
• OSTI ID: 6811799
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ARMATURES
CONTROL EQUIPMENT
ELECTROMAGNETIC PUMPS
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
PUMPS
SPRINGS
VALVES