Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1993-03-22
1993-12-21
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123501, 13762564, F02M 3704, F02M 5702
Patent
active
052713717
ABSTRACT:
An actuator and valve assembly for a hydraulically-actuated electronically-controlled unit injector is disclosed which comprises an electrically-energizable actuator including a movable member and a poppet valve connected to the movable member. The poppet valve has a first seat and a second seat and is movable along an axis between first, second and third positions. The assembly further comprises a device for biasing the poppet valve towards its first position and a device for accommodating misalignment of the first and second seats relative to the axis. The poppet valve is advantageous because it has high fluid flow control capability in a one-piece single-stage configuration.
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SAE Paper No. 910252, Development Of New Electronically Controlled Fuel Injection System ECD-U2 For Diesel Engines, published Sep. 1991, by Miyaki et al.
Meints Edward G.
Stockner Alan R.
Caterpillar Inc.
Cross E. Rollins
Moulis Thomas N.
Woloch Anthoney N.
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