High pressure fuel pump

High pressure fuel pump model 4UTNI-T-1111005-50

Installed on diesel D-245

High pressure fuel pump: I - version of a single-lever injection pump; II - a variant of a double-lever injection pump; 1 - fuel priming pump; 2 - pusher roller bushing; 3 - pusher roller; 4 - plunger pusher; 5 - pusher adjusting bolt with locknut; 6 - bottom plate; 7- plunger shank; 8 - plunger spring; 9 - rail; 10 - ring gear; 11 - fuel outlet channel; 12 - pressure valve spring; 13 - fitting; 14 - discharge valve; 15 - gasket; 16 - discharge valve seat; 17 - fuel supply channel; 18 - plunger bushing; 19 - coupling screw; 20 - pin; 21 - top plate; 22 - rotary plunger sleeve; 23 - cover; 24 - injection pump housing; 25 - cam shaft; 26 - rack nut; 27 - nut; 28 - washer; 29 - slotted sleeve; 30 - mounting flange; 31 - key; 32 - spring; 33 - air outlet plug; 34 - futorka; 35 - bypass valve; 36 - bolt; 37 - clamp; 38 and 102 - futorki: 39 - boost corrector housing; 40 - spring lever; 41 - spring starting enricher; 42 - finger; 43 - earring; 44 - regulator spring; 45 - rack rod; 46 - emphasis; 47- cover of the boost corrector; 48 - the main lever of the regulator; 49 - pin; 50 - bushing; 51 - diaphragm; 52 - plate; 53 - boost corrector cover; 54 - stock; 55 - screw; 56 - bolt; 57 - idle spring; 58-corrector rod; 59 - shims; 60-hard stop; 61 - corrector housing; 62 - bracket; 63 - bolt; 64 - heel; 65 - axis of the intermediate lever; 66 - intermediate lever; 67 - body of the speed controller; 68 - axis of levers; 69 - cargo; 70 - regulator clutch; 71 - adjusting screw; 72 - cargo axis; 73 - hub; 74 - elastic drive rubber elements; 75 - thrust washer; 76 - bearing cup; 77 - plate retainer; 78 - pump mounting plate; 79 - bearing; 80 - square bolt; 81 - handle - nut; 82 - cover; 83 - vertical cylinder; 84 - stock; 85 - piston of the fuel pump; 86 - inlet nylon valve; 87 - swivel square; 88 - body; 89 and 96 - springs; 90 - Discharge valve; 91 - fuel pump; 92 - pusher; 93 - guide sleeve; 94 - rod; 95 - piston of the fuel pump; 97 - emphasis; 98 - cork; 99 - fuel control lever; 100 - control lever roller; 101 - screw for adjusting the maximum speed; 103 - screw for adjusting the diesel stop lever; 104 - diesel stop lever

Plunger diameter 9.0 mm

Plunger stroke 9.0 mm

Spacing between sections 32 mm

Dimensions (length, width, height), mm 398х171х284

Weight, kg, no more than 14.5

Direction of rotation of the camshaft (drive side) - Right-hand

Pump section order 1-3-4-2

Angles of rotation of the camshaft (from the drive side), degrees 0-90-180-270

Ratio of camshaft speed to diesel crankshaft speed 1:2

Plunger stroke in the first section from the lower extreme position to the geometric start of injection, mm 3.3+ 0.05

Discharge valve - Mushroom, feather

Lubrication system - circulation, oil, with oil supply under pressure from the diesel lubrication system

Fuel priming pump - Piston with manual priming pump

Regulator - Centrifugal, all-mode, direct action with boost corrector

Supercharge corrector - Pneumatic

Nozzle - Mod. 17.1112010-01, closed type with hydraulically controlled needle lift, rod

Installed nozzle diameter, mm - 22.5

The method of adjusting the pressure of the start of fuel injection - Adjusting screw

Injection start pressure, MPa 17.5-18.2

Atomizer type - Mod. 145.1112110, fixed, multi-jet, five-hole

Nozzle weight, kg 0.75

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