Starter Motors and Generators Heavy Duty starter motor series HEF109 – engineered for high performance demands
Introduction Bosch offers a broad range of starter motors for onand off-highway commercial vehicles to the commercial vehicle manufacturers. The Heavy Duty (HD)starter motor series HEF109 is the best solution for large-volume engines requiring high cranking power. The starter motor can be equipped with a variety of different features enabling an adaption of the starter motor to the specific needs of our customers with little effort or expense. Product description ▶▶Starter motors for 24 volt nominal system voltage ▶▶Starter-motor performance of up to 9.2 kilowatts (at –20 °C) Customer benefits
▶▶Powerful solution for diesel engines of up to
▶▶ High cold-start performance
28 liters displacement and stationary gas-powered
▶▶ Excellent thermal robustness
engines
▶▶ Improved B10 lifetime compared to direct starter motors in this power output range due to specific product design ▶▶ Increased lifetime of ring gear and starter
▶▶Six-pole electrically excited starter motor type ▶▶Reduction gear drive and non-sliding overrunning clutch ▶▶Two-stage engagement process
pinion by reliable and smooth engagement
▶▶Unique compact design in this performance class
(two-stage)
▶▶B10 lifetime up to 800,000 kilometers in on-highway
▶▶Minimum installation space requirements
use or 14,000 operating hours in off-highway applica-
▶▶ Direct triggering of starter motor actuation via
tions
the engine control unit and simplified cable
▶▶Integrated mechanical relay (IMR) with optional
connection due to integrated mechanical relay –
plug connection provides reliable switching of all
serving as low current interface for electronic
starting functions between starter motor and
control of operation ▶▶ Different opportunities of optional performance features, thus
engine control unit ▶▶Modular starter-motor concept with optional performance features available:
• optimized, individual solutions • adaptable for specific high demands
IP protection class
Thermal protection
Rotatable flange
Insulated ground
Switched ground
“-MP” (Power Plus)
Starter Motors and Generators | Heavy Duty starter motor series HEF109 – engineered for high performance demands
Technical data Performance at T = –20 °C
[kW]
Displacement of diesel engine
[l]
Max. battery
Stator housing
Ø
Armature Solenoid
HEF109-MP
HEF109-L
24 V
24 V
24 V
7.8
8.4
9.2
≤ 16.0
≤ 24.0
≤ 28.0 220/900
DIN
[Ah/A]
176/790
220/900
EN
[A/CCA]
1,300
1,500
1,500
[kg]
11.6
14.0
14.0 – 17.0
Weight Length
HEF109-M
(D1)
[mm]
109
109
109
(L)
[mm]
320
320
355
Ø
(DA)
[mm]
75
75
75
L
(LA)
[mm]
50
50
78
Ø
(D2)
[mm]
62
62
62
Engagement process
two-stage
two-stage
two-stage
Excitation
el., 6-pole
el., 6-pole
el., 6-pole
Cast aluminum
Cast aluminum/ graphite iron
Cast aluminum/ graphite iron
Drive-end-shield material
Main dimensions HEF109-L 24 V
D2
DA D1
LA L
Robert Bosch GmbH Starter Motors and Generators Postfach 30 02 40 70442 Stuttgart Germany www.bosch-automotivetechnology.com Printed in Germany 292000P1BC-C/CCA2-201409-En © Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.