DISTRIBUTOR FUEL INJECTION PUMPS - DPA TYPE

The DPA pumps range offers compact size incorporating pumping unit, mechanical governor, timing device and transfer pump in a pressurized, fuel lubricated unit, whose number of main parts remains independent of the number of cylindres in the engine.

A single pumping unit (the hydraulic head) consisting of 2 opposite plungers, located within a transverse bore of a distributor rotor, and forced inwards by lobes of a stationary internal cam ring, ensures a uniform delivery of fuel to each engine's cylinder.

The amount of delivery is determined by the plunger's outward stroke, which varies with the quantity of admitted fuel, controlled by the opening of a metering valve (inlet metering principle), the max. stroke being mechanically determined.

COMPLETE NEW INJECTION PUMPS AVAILABLE FROM MEFIN
 
 

 

 

 
FEATURES
  • Flange mounting on the engine, in any position
  • Mini-max or all-speed mechanical governor
  • Speed and/or load dependent timing devices
  • Mechanical and/or electrical shut-off
  • Manual or automatic start retard
  • Self venting system
  • Phasing adjustable torque control
Technical parameters
Parameters
Measure
   
       
Max. power per engine cylinder
kW
20  
Max. peak injection pressure
bar
600  
Number of pumping outlets   2, 3, 4, 6  
Max. pump speed
rpm
2500  
Max. plunger stroke
mm
1.2 ÷ 1.7  
Number of plungers   2 (or 4)  
Fuel feed pressure
kN/mp
0.2  
Approximate weight
Kg
5.2 to 6.4  
Automatic advance range   12 pump deg.
Operating temperature   From -200C to + 700C
Plunger diameter
mm
5 to 10 (0.5 mm steps)
Pump rotation   Clockwise or anti-clockwise 
Built-in mechanical governor       
Built-in hydraulic timing device      
Fuel lubricated