IN- LINE FUEL INJECTION EQUIPMENT - ZW SIZE

The ZW size in-line fuel injection equipment include the following ones:

- injection pump (ZW-size, in-line) with its own camshaft, provided with a flange or base for mounting on the engine;
-feed pump, with double acting piston, hand-actuated pump and in some cases with   sediment bowl;
-centrifugal speed governor RQU type, for two speed range or RQUV for all-range speeds

The in-line pumps follow the same basic operating principle and configuration, a pumping element and delivery valve for each engine cylinder, arranged in a straight line up to 12 cylinders.The pump's plunger lift is constant and delivery per stroke is controlled by timing of a metering helix on the plunger. Fuel metering is adjusted to engine speed by a mechanical governor. Each  size and individual pump within the size range is conceived, engineered and calibrated to meet the requirements of the specific engine for which is intended.

 
 

 

 

 

FEATURES

 
Flange or base for mounting on the engine

Lubrication by engine oil self-contained system or own self - contained system

Mini-max or all-speed mechanical governor to suit specific applications

Positive or negative torque control by governor

Excess start fuelling system

Shut-off system

Boost pressure compensator

Fuel feed pump, hand actuated priming pump, primary filter and sediment bowl

Technical parameters

Parameters

Measure

       

Max. power per engine cylinder

kW

135

Max. peak injection pressure

bar

950

Number of pumping outlets

4, 6, 8, 12

Max. pump speed

rpm

1200

Plunger diameter

mm

14, 15, 16

Plunger stroke

mm

11

Rack stroke

mm

34

Built-in mechanical governor 

RQU or RQUV type

Operating temperature

From -200C to + 1100C

Pump rotation

Clockwise or anti-clockwise 

Lubrication

By engine oil or self-contained system