Centaur 2001 950, Service Manual

Page: 433 / 450

18
d n su
Axial Piston Pumps, Motors, and Transmissions Series 70 / 15 Series
Efficiency and Performance of Series 70 Units
The following graphs provide typical efficiency and
performance information for Series 70 units.
100 80 60 40 20 0
0
100
10
20
30
40
50
60
70
80
90
BDU-10L Overall Efficiency
(@ 3000 RPM Pump Input Speed)
Output Torque — lbf•in
Overall Efficiency — %
200 180 160 140 120
Full Displacement
Half Displacement
100 80 60 40 20 0
0
3000
250
750
1000
1250
1500
1750
2000
2250
2500
500
2750
BDU-10L Performance
(@ 3000 RPM Pump Input Speed)
Output Torque — lbf•in
Output Speed — rpm
200 180 160 140 120
Full Displacement
Half Displacement
100 80 60 40 20 0
0
100
10
20
30
40
50
60
70
80
90
BDU-21L Overall Efficiency
(@ 3000 RPM Pump Input Speed)
Output Torque — lbf•in
Overall Efficiency — %
200 180 160 140 120
Full Displacement
Half Displacement
100 80 60 40 20 0
0
3000
250
750
1000
1250
1500
1750
2000
2250
2500
500
2750
BDU-21L Performance
(@ 3000 RPM Pump Input Speed)
Output Torque — lbf•in
Output Speed — rpm
200 180 160 140 120
Full Displacement
Half Displacement
2000 1500 1000
50
100
60
70
80
90
BDP-10L Overall Efficiency
(@ Full Displacement [15° Swashplate Angle])
Input Speed — rpm
Overall Efficiency — %
4000 3500 3000 2500
1000 psi
1500 psi
2000 1500 1000
4
9
5
6
7
8
BDP-10L OutputFlow
(@ Full Displacement [15° Swashplate Angle])
Input Speed — rpm
Pump Flow — gpm
4000 3500 3000 2500
No Load
1000 psi
1500 psi