Starter motors and generators

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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.


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