Page 18 - Linde - HPV-02 Variable pumps for closed loop operation

Controls. Mechanical-hydraulic M

The cam plate offers a large control angle with progressive control characteristic and a wide neutral range. The resulting high
resolution for movements from the neutral range (and vice versa) enables precise manoeuvring. Reliable and robust control of the
displacement volume is achieved through position feedback.

Displacement relative to control angle

Displacement [%]

Control angle [%]

Control force with max. long lever radius r= 70 mm 17 N
Max. permissible control force (intermittent) 500 N
Control torque < 1.0 Nm
Control torque out of notch < 1.5 Nm
Neutral position 24°, 90° (standard), 133°, 144°, 188°, 210°, 232°
Control angle neutral range ... to end position ±3° ... ±48°
Minimum response time with standard restrictors 0.5 s

M1R-cam plate Control range

neutral dwell
angle + / - 3°

neutral = 90°

reference axis for
neutral position

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