Poppet covered orifice fuel injection nozzle

Details Poppet covered orifice fuel injection nozzle Poppet covered orifice fuel injection nozzle

F - Mech Eng,Light,Heat,Weapons

02

M

123/141

F02M 61/08 (2006.01) F02M 61/04 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1269003

POPPET COVERED ORIFICE FUEL INJECTION NOZZLE Abstract of the Disclosure A poppet covered orifice fuel injector nozzle for use in a direct injection type diesel engine has a spray tip with a spring biased poppet valve journaled for reciprocable movement therein, the lower reduced diameter free end of the spray tip and the head of the poppet valve having opposed frusto-conical valve seat surfaces with a differential angle of about 2° so that seating engagement occurs at the outer peripheral edges thereof. The poppet valve has a fuel supply passage extending through the stem thereof for flow communication with a plurality of circumferentially spaced apart radial orifices that are inclined and located so as to discharge fuel parallel to and directly across the valve seat surface of the poppet valve.

507580

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