| 摘要 |
FIELD: engines and pumps.SUBSTANCE: proposed fuel injector comprises body and head coupled therewith and having one lengthwise bore and several bores extending therefrom to inject fuel into diesel combustion chamber, and valve needle arranged inside said body and valve seat. Valve seat interacts with said needle to control fuel feed to said lengthwise bore and injector bores. Head lengthwise bore is additionally provided with throttle to open/close injector bores to prevent unwanted escape of fuel from head lengthwise bore in expansion stroke. Said throttle is equipped with its servo drive to make it move relative to needle with time delay. Diesel engine is equipped with fuel injector in compliance with whatever 1st to 22th claims.EFFECT: prevention of unwanted escape of fuel from head lengthwise bore in expansion stroke.25 cl, 8 dwg |
