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Walvoil S.P.A. 42124 Reggio Emilia Italy Via Adige, 13/D Tel.+39.0522.932411 Fax +39.0522.300984www.walvoil.com
Fan DriveElectrohydraulic Fan Drive Systems

Electrohydraulic Fan Drive SystemsFan Drive
GENERAL WORKING CONDITIONS
Displacementfrom 4 to 31.5 cm/rev from 0.24 to 1.92 in/rev
Max continuous pressure up to 250 bar - 3600 psi
Fluidhydraulic mineral
oil-based
Fluid temperature range
with NBR (buna N)sealsfrom -20 to +80 C from -4 to +176 F
with FPM (viton) sealsfrom -20 to +100 C from -4 to +212 F
ViscosityRecommended from 15 to 92 mm/s (cSt)
Permitted for starting 2000 mm/s (cSt)
Max level of contamination
Recommended for operating pressure > 150 bar (2150 psi)
20/18/15 ISO 4406 class 9 (NAS 1638)
Recommended for operating pressure < 150 bar (2150 psi)
21/18/15 ISO 4406class 10 (NAS 1638)
Long life expectancy Optional speed sensor Two speed, variable speed or
reversible confi gurations Optional outrigger bearing Reduced overall dimension Electronic control available
GROUP
2SM Displacement Max continuous pressure Max intermittent pressure Max rotation speed
S - D R S - D R
cm/giro in/rev bar psi bar psi bar psi bar psi rpm
2SM 040 4.0 0.24 230 3330 230 3330 270 3900 230 3330 40002SM 060 6.0 0.37 230 3330 230 3330 270 3900 230 3330 40002SM 080 8.5 0.52 230 3330 230 3330 270 3900 230 3330 35002SM 110 11.0 0.67 230 3330 230 3330 270 3900 230 3330 35002SM 140 14.0 0.85 230 3330 230 3330 270 3900 230 3330 35002SM 160 16.5 1.01 230 3330 200 2900 240 3480 200 2900 35002SM 190 19.5 1.19 210 3050 185 2680 220 3190 185 2680 33002SM 220 22.5 1.37 190 2750 170 2460 200 2900 170 2460 28002SM 260 26.0 1.59 170 2470 150 2180 180 3600 150 2180 25002SM 310 31.5 1.92 130 1890 120 1740 140 2030 120 1740 2200
Tecnichal data _____________________________________________________________________________________________
Walvoil Fan Drive is a new range of vehicle cooling systems based on external gear motors; these types of motors are widely used in modern hydraulics due to their high performance, long life service and low maintenance costs.An electrohydraulic Fan Drive offers signifi cant advantages if compared with traditional solutions with electric or belt drives.Maximum performance is achieved by coupling the Fan Drive with the Walvoil CED400W electronic control units, fully programmable.

Variable speed Fan Drive system ____________________________________________________________________
(RPM)Diesel engine speed
Fan
spee
d(R
PM)
A Gear pumpB Gear motorC Proportional pressure relief valveE Electronic control unitF Temperature sensorG Speed sensor
Cooler
Diesel engine
AB
C
E
F
G
F
F
FilterOil tank
CAN Bus network
M
A/D
Tem
p
A/D
Temp
A/D
TempUG
C
E
A
B
G
F F F
Motor with a proportional pressure relief valve and an anti-cavitation valve integrated in the rear cover.The max speed of the motor can be controlled independently by the engine speed for optimal performance and lower energy consumption. In case of power failure the max speed is achieved.In case of sudden engine stop, the anticavitation valve prevents any fan damage.
Fan speed is independentfrom engines one

Variable speed Fan Drive system ____________________________________________________________________
Example of standard Fan Drive motor with proportional pressure relief valve.
GROUP
2SMA B C
mm in mm in mm in
2SM 040 105.3 4,145 89.3 3.52 46.4 1.8272SM 060 108.6 4.276 92,6 3.646 48.05 1.8922SM 080 112.8 4.441 96.8 3.811 50.15 1.9742SM 110 116.9 4.602 100.9 3.972 52.2 2.0552SF 140 121.9 4.799 105.9 4.169 54.7 2.1532SF 160 126,1 4.965 110.1 4.335 56.8 2.2362SF 190 131.1 5.161 115.1 4.531 59.3 2.3352SF 220 136.1 5.358 120.1 4.728 61.8 2.4332SF 260 141.9 5.587 125.9 4.957 64.7 2.5472SF 310 150.3 5.917 134.3 5.287 68.9 2.712
205.
58.
0934
.51.
36
100
3.94
90.
354
118
4.65
722.8390
3.54
90.354
7,20.354
B
A
C
B
90.354
15
,75
0.
62
80
3.
15

Fan
spee
d R
ever
se fan
spe
ed
Reversible Fan Drive system __________________________________________________________________________
Fan speed is independentfrom engines one
A Gear pumpB Gear motorC Proportional pressure relief valveD On/off reverse valveE Electronic control unitF Temperature sensorG Speed sensor
Cooler
Diesel engine
AB
C
D
E
F
G
F
F
FilterOil tank
CAN Bus network
(RPM)Diesel engine speed
(RPM
)
Motor with a proportional pressure relief valve, and on/off four way valve and an anti-cavitation valve integrated in the rear cover. The ON-OFF valve is used to reverse thef an direction for the automatic cleaning of the radiator from dirt and debris in order to increase the cooling effi ciency and to reduce maintenance needs.
M
A/D
Tem
p
A/D
Temp
A/D
TempUG
C
E
A
B
D
G
F F F
B
D
C

Example of 2 speeds Fan Drive confi guration Example of Fan Drive confi guration with speed sensor
Example of confi gurations _____________________________________________________________________________
Outrigger bearing ________________________________________________________________________________________
Fan motors are suitable to work when axial loads are below 45 N - 101 lbf and radial loads below 90 N - 20.2 lbf.For higher loads special support fl anges with outrigger bearings are available.
UG
XFr
A: X = 40 mm - 1.57 inB: X = 30 mm - 1.18 inC: X = 20 mm - 0.79 inD: X = 10 mm - 0.39 in
E: 1000 hF: 2500 hG: 5000 hH: 10000 hI: 15000 h
1000 1500 2000 2500 3000 350000
1000
2000
3000
4000
5000
Feq (
N)
E
F
G
I
H
0
200
400
600
800
1000(lbf)
Speed (RPM)
0
1000
2000
3000
4000
250 500 750 1000 1250 1750 200015000 (N)
A B C D
Feq (
N)
Fr (RPM)
5000
0
200
400
600
800
0 50 100 150 200 250 300 350 400 450
1000(lbf)(lbf)
Equivalent dynamic load
Bearing expected life
P
TT1
Drain
P
T
Drain

CED400W Electronic control unitVersatile electronic controller for Fan Drive applications, with high performance DSP microprocessor and SAE J1939 CAN Bus protocol.Cooling curves can be a combination of CAN data, temperature, pressure, RPM sensors. Retarder and reverse functions can be ea-sily implemented. Standard behaviour can be graphically confi gured through WST STUDIO software. Custom applications can be develo-ped through the PHC STUDIO (IDE - Integrated Development Envi-ronment) according to IEC 61139 standard.
PHC STUDIOPHC Studio is an Integrated Development Environment (IDE) to de-velop and download into the CED400W electronic control unit the Custom application logics and Working parameters.PHC Studio allow to have the complete control of the application, either hydraulic that electronic. It is compliant with all the 5 program-ming languages of the IEC 61131-3 PLC Standard.
Temperature sensorRange of sensors made of sintered semiconductor material particu-larly sensitive to temperature; it allows to obtain large variations in resistance in proportion to small temperature variations.The sensor is available with different electrical connections (Cable, Delphi Metri Pack, AMP junior power Timer, Deutch DT04).
Accessories _________________________________________________________________________________________________
GENERAL WORKING CONDITIONSSensor element NTC
Working temperaturefrom -40 to +150 C from -40 to +302 F
Impedance@ 25 C / 77 F 5000 Ohm@ 0 C / 32 F 16325 Ohm
Environmental temperaturefrom -40 to +125 C from -40 to +257 F
Weather protection IP67
GENERAL WORKING CONDITIONSSupply voltage from 8 to 32 V Max. current outuput @ 12 VDC 6 A
Working temperaturefrom -40 to +85 C from -40 to +185 F
Environmental compatibility EC60068-2-6/27/29
EMC compatibility
Weather protection mating connector attached IP67
InputsAnalog up to 4Digital up to 6
Proportional outputs 12 - 2 A max
For further specifi cations please see D1WWEE01E catalogue
118.34.66
102.24.02
7.
4
0.29
1
36.6
1.44
58.3
2.30
133.
85.
27
M18x1.5
133.
85.
27
53.5
2.11
12 0.47
16 0.63
70.
276
40.157
NOTE: The control unit must be ordered separately from the Fan Drive

Walvoil S.P.A. 42124 Reggio Emilia Italy Via Adige, 13/D Tel.+39.0522.932411 Fax +39.0522.300984www.walvoil.com
Fan DriveElectrohydraulic Fan Drive SystemsSistema di raffreddamento elettroidraulico
Fan Drive
Description composition _________________________________________________________________________________
D1WGCM02E - 1st edition November 2017
2SM - G - 14

fandrive new ing - · pdf filewalvoil fan drive is a new range of vehicle cooling systems...

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