MONOCYLINDER FUEL INJECTION PUMPS |
Monocylinder injection pumps are without their own camshaft, but they are driven normally by the engine camshaft. The plunger lift of the pump is always constant and delivery per stroke is controlled by timing of a metering helix on the plunger. The movement is transmitted from the cam to the plunger via a roller or flat tappet. The pumps are provided with a flange for mounting on the engine. The feed pump and the governor are separately mounted on the engine. For multicylinder engines it is necessary to provide one pump per cylinder. One single governor operates by a single bar the control rods of each pump. The monocylinder fuel injection pumps manufactured at MEFIN Sinaia are of Q, K, A, B, Z, C and CQ size. They are suitable for high speed, low power engines as well as for railway or marine applications. |
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FEATURES | |
Short path from to engine cylinder for short high-pressure tubing and minimum dead volume | |
Suitable for direct and indirect injection | |
Mechanical metering | |
Sizes and configurations available for a wide variety of applications | |
Use of high-volume in-line pump components (smaller models) | |
Vertical or horizontal high-pressure outlet | |
Cast-iron or aluminum housing | |
Guide sleeve for roller tappet, or integrated roller tappet | |
Exceptionally high-quality components, to assure long service life | |
Monobloc element for high-pressure applications (reduced emissions) | |
Large pump models for operation on heavy-viscosity fuel |
Technical parameters
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Parameters
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Measure | |||||||||||||
Pump size |
Q | K | A | B | Z | C | CQ | |||||||
Plunger max. stroke |
mm | 7 | 7 | 8 | 10 | 12 | 22 | 20 | ||||||
Max. power per engine
cylinder |
kW | 9 | 17 | 20 | 21 | 204 | 272 | 340 | ||||||
Max. peak injection pressure
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bar | 500 | 650 | 700 | 550 | 900 | 1000 | 1000 | ||||||
Pplunger diameter |
mm | 5 | 5 .. 9 | 5..10 | 8 | 16 | 17 .. 20 | 16........19 | ||||||
Rack stroke |
mm | 18.5 | 19 | 21 | 25 | 29 | 34 | 34 | ||||||
Max. pump speed
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rpm | 2000 | 2000 | 2000 | 1500 | 1000 | 400 | 550 | ||||||
Max. output |
mm3 / cycle | 30 | 52 | 100 | 130 | 850 | 2190 | 1388 | ||||||
Fuel
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Diesel
fuel |
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Operating temperature |
From -200C to
+ 700C |