14
Top cover
Idler pin
Pump cover
Idler gear
Rotor
Pump casing
Intermediate
casing
Lantern
piece
Pump shaft
A.0500.751 – IM-TGBLOC/01.00 EN (10/2020)
3.2 Operating principle
3.0 General technical information
3.1 Pump standard parts
As the rotor and idler gear unmesh, an underpressure
is created and the liquid enters the new created cavities.
Liquid is transported in sealed pockets to the discharge side.
The walls of the pump casing and the crescent are creating
a seal and separate suction from discharge side.
The rotor and idler gear mesh and liquid are being pushed
into the discharge line.
Reversing the shaft rotation will reverse the flow through the pump as well.