Damped solenoid actuated valve and fuel injector using same

Details Damped solenoid actuated valve and fuel injector using same Damped solenoid actuated valve and fuel injector using same

1998-02-11

1999-10-19

Morris, Lesley D.

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

2395851, 2395339, 25112919, 25112916, F02M 4704, F02M 5100

Patent

active

059674130

ABSTRACT:
A control valve, preferably for use in a fuel injector, includes a valve body that defines a first passage and a second passage. A solenoid is attached to the valve body and has an armature. A multi piece valve member is attached to the armature and is positioned in the valve body. The multi piece valve member is moveable between a first position in which the first passage is open to the second passage, and a second position in which the first passage is closed to the second passage. The multi piece valve member includes a second valve member piece moveable with respect to a first valve member piece between a contact position in which a portion of the second valve member piece is in contact with the first valve member piece, and a separated position in which the portion is a distance away from the first valve member piece. A damping spring is compressed between the second valve member piece and the first valve member piece when the second valve member piece is in its separated position. The damping spring serves to absorb energy that might otherwise reveal itself as bouncing behavior when the valve member comes in contact with one of its stops.

REFERENCES:
patent: 2735644 (1956-02-01), Bishofberger
patent: 3473780 (1969-10-01), Harms
patent: 3970282 (1976-07-01), Hansen
patent: 4008876 (1977-02-01), Bastle
patent: 4605197 (1986-08-01), Casey et al.
patent: 4666125 (1987-05-01), Marts et al.
patent: 4783009 (1988-11-01), Coates
patent: 5265804 (1993-11-01), Brunel
patent: 5499608 (1996-03-01), Meister et al.
patent: 5538187 (1996-07-01), Mueller et al.

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