Hydraulic Pump

how efficient is a hydraulic pump and hydraulic motor?

how efficient is hydraulic motor connceted to a hydraulic pump so the pump runs the motor. what kind of losses are there? is there a different lose at different speeds

If the components are new, the circuit will be relatively efficient. Inefficiency will be a function of leakage in the pump and motor.
The losses will go up with speed and load. The suppliers normally provide a graph that enables you to work out what the delivered power will be at a given load and speed setting.

Just a quick note about the above answer, liquids are compressible but at low pressures the compression is so low it can be virtually ignored. However in applications like fuel systems, operating at around 2000 bar, diesel is compressed to be 85% of its original volume.

Massey Ferguson Ford Hydraulic Pump 712 730 735 MF30+
Massey Ferguson Ford Hydraulic Pump 712 730 735 MF30+
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D8NN600KB New Ford Hydraulic Pump 3900 4600 5600 5700 6600 6700 7600 7700 +
D8NN600KB New Ford Hydraulic Pump 3900 4600 5600 5700 6600 6700 7600 7700 +
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Bondioli Hydraulic Pump
Bondioli Hydraulic Pump
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Marzocchi Hydraulic Pump
Marzocchi Hydraulic Pump
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Ford Newholland Engine Mounted Hydraulic Pump
Ford Newholland Engine Mounted Hydraulic Pump
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NEW JOHN DEERE HYDRAULIC PUMP  YZ502246
NEW JOHN DEERE HYDRAULIC PUMP YZ502246
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Ford Hydraulic Pump 3230 3400 3430 3550 3910 3930 4610
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MAHINDRA TRACTOR HYDRAULIC PUMP WITH MANIFOLD FOR 25 AND 30 SERIES MODELS
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MF Hydraulic Pump Repair Kit for 35 65
MF Hydraulic Pump Repair Kit for 35 65
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ZETOR TRACTOR HYDRAULIC PUMP FILTER 95 4651
ZETOR TRACTOR HYDRAULIC PUMP FILTER 95 4651
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Ford Tractor Gear Type Hydraulic Pump 3500 4000 4500
Ford Tractor Gear Type Hydraulic Pump 3500 4000 4500
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Case IH Hydraulic Pump Assembly 1543241C1
Case IH Hydraulic Pump Assembly 1543241C1
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E2NN600AB Ford New Holland Hydraulic Pump 2810 2910 3610 4110 4630 5030 231 335
E2NN600AB Ford New Holland Hydraulic Pump 2810 2910 3610 4110 4630 5030 231 335
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Ford Tractor Hydraulic Pump Elbow NCA 933F
Ford Tractor Hydraulic Pump Elbow NCA 933F
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TX17203 Long Tractor Hydraulic Pump 2510 2610 680
TX17203 Long Tractor Hydraulic Pump 2510 2610 680
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556602 Massey Ferguson Hydraulic Pump Kit 135 150 165 +
556602 Massey Ferguson Hydraulic Pump Kit 135 150 165 +
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527397R93 Farmall IH 9 GPM MCV Hydraulic Pump 1026 1066 1206 1256 1456 1466 1468
527397R93 Farmall IH 9 GPM MCV Hydraulic Pump 1026 1066 1206 1256 1456 1466 1468
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729563M91 Massey Ferguson Hydraulic Pump Drive Shaft
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544708R92 New Case IH 18 GPM Hydraulic Pump 454 574 Tractor 2400 2500 Industrial
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R34362 Two New John Deere Hydraulic Pump Coupler Halves 310 410 440 444 555 +
R34362 Two New John Deere Hydraulic Pump Coupler Halves 310 410 440 444 555 +
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Kubota hydraulic pump
Kubota hydraulic pump
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405181R1 Case IH Tractor MCV Hydraulic Pump Drive Gear 856 1466 1566 3288 +
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John Deere G PTO 1 3 8 In Hydraulic Pump cover Small shaft
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John Deere Hydraulic Pump for 520 530 620 630 720 730 non diesel
John Deere Hydraulic Pump for 520 530 620 630 720 730 non diesel
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Rebuilt John Deere 2520 3020 4020 Hydraulic Pump
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Hydraulic Gear Pump John Deere 8560 Tractor RE37755
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Hydraulic Gear Pump John Deere 8760 Tractor RE37755
Hydraulic Gear Pump John Deere 8760 Tractor RE37755
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Hydraulic Gear Pump John Deere 8960 Tractor RE37755
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Oliver 1755 1855 1955 2255 Hydraulic Pump Shield Cover
Oliver 1755 1855 1955 2255 Hydraulic Pump Shield Cover
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NEW HYDRAULIC PUMP CASE INTERNATIONAL 354 384 424 2424
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Massey Ferguson Hydraulic Pump 184473M93 35 50 650 202 203 204 205 231
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3281125M91 Massey Ferguson Tractor Hydraulic Pump 205 205 4 Hinomoto E14 E16 E18
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Massey Ferguson Hydraulic Pump Assembly 3614362M93
Massey Ferguson Hydraulic Pump Assembly 3614362M93
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Oliver White Hydraulic Pump Assembly 5121276
Oliver White Hydraulic Pump Assembly 5121276
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Case IH Hydraulic Pump Assembly 5179726
Case IH Hydraulic Pump Assembly 5179726
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CCPN600A Ford New Holland Hydraulic Pump Repair Kit NAA 600 800 601 801 2000 +
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5121276 White Oliver Mpl Moline Hydraulic Pump 1365
5121276 White Oliver Mpl Moline Hydraulic Pump 1365
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Allis Chalmers Hydraulic Pump Assembly 70270905
Allis Chalmers Hydraulic Pump Assembly 70270905
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734628M1 New Massey Ferguson Hydraulic Pump Drive Pulley 135 150 230 235 TO35 +
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New Gleaner Combine Hydraulic Pump w Power Steering Belt 71131774
New Gleaner Combine Hydraulic Pump w Power Steering Belt 71131774
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New Gleaner Combine Hydraulic Pump w o Power Steering Belt 71142239
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Deere Hydraulic Pump RE258467 For parts
Deere Hydraulic Pump RE258467 For parts
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70263552 Hydraulic Pump Fits Allis Chalmers 6060 6080
70263552 Hydraulic Pump Fits Allis Chalmers 6060 6080
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OEM Hydraulic Pump for Ford New Holland Equipment E7NN600AA
OEM Hydraulic Pump for Ford New Holland Equipment E7NN600AA
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New Gleaner Combine Hydraulic Pump w Power Steering Belt 71146713
New Gleaner Combine Hydraulic Pump w Power Steering Belt 71146713
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Hydraulic Pump fits various Ford New Holland Loader 250C 260C 345C 345D 655 655A
Hydraulic Pump fits various Ford New Holland Loader 250C 260C 345C 345D 655 655A
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Massey Ferguson Auxiliary Hydraulic Pump 175 165 135 180 230 240 245 275 690 +
Massey Ferguson Auxiliary Hydraulic Pump 175 165 135 180 230 240 245 275 690 +
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9N621 New Ford Tractor 2N 8N 9N Hydraulic Pump Chambers Right
9N621 New Ford Tractor 2N 8N 9N Hydraulic Pump Chambers Right
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2750128M91 New Massey Ferguson Front Mount Hydraulic Pump 30 32 40 54 212 225 ++
2750128M91 New Massey Ferguson Front Mount Hydraulic Pump 30 32 40 54 212 225 ++
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24D002 HYDRAULIC PUMP REPAIR KIT Fits Allis Chalmers 170 175 180 185
24D002 HYDRAULIC PUMP REPAIR KIT Fits Allis Chalmers 170 175 180 185
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Case IH Hydraulic Pump Assembly 128191C91
Case IH Hydraulic Pump Assembly 128191C91
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Allis Chalmers Hydraulic Pump Assembly 70257005
Allis Chalmers Hydraulic Pump Assembly 70257005
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R39319 John Deere Hydraulic Pump Cam Shaft 1020 1030 1040 1120 1130 1140 1350 +
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D5NN600C E Hydraulic Economy Pump Fits Ford NH 9700
D5NN600C E Hydraulic Economy Pump Fits Ford NH 9700
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Used Hydraulic Pump hyd
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CCPN600A New Ford Hydraulic Pump Repair Kit 500 600 700 800 900 2000 4000 NAA +
CCPN600A New Ford Hydraulic Pump Repair Kit 500 600 700 800 900 2000 4000 NAA +
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Hanix Diesel Kiki Bosch Hydraulic Pump for Tractor
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Hanix Xexel Hydraulic Pump for Tractor
Hanix Xexel Hydraulic Pump for Tractor
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Ford New Holland Hydraulic Pump 2310 2600 2610 3600 3610 5610 6610 7610 7710 +
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New Gleaner Combine Hydraulic Pump Belt 71146714
New Gleaner Combine Hydraulic Pump Belt 71146714
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Case IH MX 110 MX120 MX135 MX150 or MX170 FULL HYDRAULIC PUMP REPAIR KIT
Case IH MX 110 MX120 MX135 MX150 or MX170 FULL HYDRAULIC PUMP REPAIR KIT
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New Gleaner Combine Hydraulic Pump Belt 71300400
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Long Tractor New Hydraulic Pump 260C 310 310C 350 360 360C 445 460 510 560 610 +
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New MF Hydraulic Front Pump 2750128m91 1075358M1
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john deere hydraulic pump danfoss AMT1165
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New 1672251M92 Massey Ferguson Hydraulic Lift Pump 165 175 230 250 265 670 699 +
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MASSEY FERGUSON 135 165 175 30 40B 50A++ HYDRAULIC PUMP DRIVE ADAPTER 708639M91
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New Massey Ferguson Hydraulic Pump 1076957m91
New Massey Ferguson Hydraulic Pump 1076957m91
$850.00
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FORD HYDRAULIC PUMP VALVE CHAMBER WITH VALVES R H 9N621 2N 8N 9N
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HYDRAULIC PUMP GASKET FOR FORD TRACTOR
HYDRAULIC PUMP GASKET FOR FORD TRACTOR
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FERGUSON FORD HYDRAULIC PUMP REBUILD KIT 886404M2 HPOK1 2N 8N 9N TE20 TEA20 TO30
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