Engine-Engineandcrankcase
HighPressurePump
(1)Outlettocommonrail
(2)Highpressurepump
(3)Pressureregulatorvalve(Mprop)
(4).Drivegear
(5)Inletsupplyfromnallter
(6)Returntotank
(7)InletfromECUcoolingplate
(8)Outlettonallter
(9)Gearlowpressurepump
TheCP3pumpisaradialpistonpump.Ithasthreepis-
tonsthatarespringloadedagainstacommoneccentric
shaft.Inonerevolutionofthepumpshafteachpistonhas
completedapumpingcycle.Eachpistonisspringloaded
topushthepistonagainsttherotarycouplingontheec-
centricshaft.
Eachpumpingelementhasaninletvalveandanoutlet
valve.Thevalvesactascheckvalves;theinletvalve
allowslowpressurefuelthatismeteredbytheregulator
valvetointerthepumpingchamberwhiletheoutletvalve
onlyallowsthefueltoexitthepumpingchamberandgo
tothecommonrail.
RAIL15TR00386BA36
5143149922/02/2018
10.1[10.001]/26