Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-04-28
1994-12-27
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel injection system
123467, 251 48, 251 51, F02M 1500, F16K 3112
Patent
active
053755766
ABSTRACT:
An actuator and valve assembly for an electronically-controlled injector is disclosed which comprises an electrically-energizable actuator assembly and a device for communicating, collecting and draining damping fluid with respect to at least one cavity of the actuator assembly. If too much damping fluid remains in the actuator assembly after engine shutdown, that damping fluid may cool off and cause slow response of the actuator and valve assembly during cold engine starting. The end result is that quick starting and/or operation of the engine may be hindered, particularly under cold engine conditions. The communicating, collecting and draining means permits at least a portion of the hot damping fluid to automatically drain from the cavity after the engine has been shutdown.
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Ausman Thomas G.
Harmon Michael P.
Shinogle Ronald D.
Zimmer Michael T.
Caterpillar Inc.
Cross E. Rollins
Moulis Thomas N.
Woloch Anthony N.
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