Case IH Magnum 310 - Page 69

Engine-Engineandcrankcase
Duringtheinletphase,thequantityoffuelowtothepumpingelementisdeterminedbytheregulatingvalve.The
regulatingvalve,dependentonthePWMcommandsentfromtheECU,metersthefueltothepumpingelements.
Whenthepumpingelementstartsdecreasingthevolumetheinletvalvewillclose.Thefuelisnowtrappedinthe
pumpingchamberandthepressurewillstarttobuild.Whenthepressureinthepumpingchamberbecomeshigher
thanthepressureinthecommonrailtheoutletvalvewillopenthefuelwillowtothecommonrail.
RAIL15TR01379GA38
(1)Fueltocommonrail(5)PWMmeteredfuel
(2)Outletvalve(6)Lowpressuresupplyfuel
(3)Pumpingelement(7)Regulatorvalve(PWM)
(4)Eccentricpumpshaft
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