Direct Displacement Drive System; Lpv Pump Schematic Diagram - Danfoss LPV Technical Information

Technical Information
LPV Axial Piston Pumps
General description

Direct displacement drive system

Pictorial circuit diagram
Cylinder
block
assembly
Input
shaft
Variable
displacement
pump
The diagram shows an LPV pump driving an OMR motor. The system shown uses an external charge pump and external filter. Charge
pressure relief valves, high pressure relief valves, and loop flushing valves are shown separated from the pump to provide clarity to the
hydraulic system.

LPV Pump schematic diagram

© Danfoss | September 2017
The direct displacement control varies the swashplate angle. Swashplate angle determines pump flow
and motor speed.
Heat exchanger
bypass
Heat
exchanger
Loop flushing valves
HPRV valves
Charge pressure
inlet
L2
L1
Reservoir
Filter
Charge relief
valve
Charge pump
Bypass
valve
OMR
orbital
motor
Output
shaft
Suction flow
Charge pressure
Servo pressure
High pressure
Case flow
P100586
Port A
Port B
P106287
520L0954 | BC00000044en-US0102 | 7