F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 57/02 (2006.01) F02D 41/38 (2006.01) F02M 59/10 (2006.01) F02M 59/46 (2006.01) F02M 59/48 (2006.01) F02M 63/02 (2006.01) F02B 75/18 (2006.01) F02F 7/00 (2006.01)
Patent
CA 2095348
2095348 9307384 PCTABS00021 Herein are disclosed methods of conditioning fluid, such as damping fluid, in an electronically-controlled unit injector (18) in order to facilitate quick starting of an engine (12). Fluid normally used to dampen the motion of an electrical actuator assembly (36) of the unit injector (18) can remain in the actuator assembly (36) after the engine (12) is stopped. If too much fluid remains and cools off in the actuator assembly (36), quick starting of a cold engine may be hindered. Each of the above methods expels and/or heats up at least a portion of the remaining fluid in the actuator assembly (36) while the engine (12) is at rest and thereby enables quicker response of the actuator assembly (36) when the engine (12) is started. Such quicker response improves the fuel injection delivery capability and timing accuracy of the unit injector (18) during engine startup.
Ausman Thomas G.
Ertel John G.
Flinn Michael A.
Caterpillar Inc.
Kirby Eades Gale Baker
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