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M109 Howitzer APU


21kW AUXILIARY POWER UNIT FOR M109 HOWITZER

Ref no. M109APU

A modular 21kW Auxiliary Power Unit (APU) with 28VDC 270A brushless alternator to:

  • Supply 28VDC, 120A to charge the vehicle batteries or supply the total electrical requirement of the turret including a possible WMS system, without starting the vehicle main engine.
  • Supply 28VDC, 110A for the air conditioning system.
  • Belt drive the 12kW ACU compressor.

The APU/ACU system does not restrict the standard operational features of the vehicle in terms of firing and mobility. It has its own 28V 120Ah battery pack and 80 litre fuel tank on board. The electrical connections, looms between the aircon, power units, electronic control panels and electrical control gear are designed and selected for operation in military environments, which include adverse temperatures, EMI/EMC as well as severe shock and vibration.

The aircon and power units are equipped with custom designed electronic controllers, capable of all control and safety functions. The controller automatically regulates the engine speed according to load to conserve fuel, reduce noise and prolong engine life. The system has a Bluetooth login interface for remote monitoring via a smartphone app and/or laptop. Installation of the units requires minimal vehicle modifications. Modules are mounted on the outside on the rear of the turret in such a way that personnel actions and movement are unaffected.

Specifications
Product Video

1

Modular

Fully Self contained with only Electrical Power Connection & Installation Interfaces.

2

Adverse Conditions

Design & Built to still give 100% Performance in extreme ambients of -10°C to 55°C.

3

Special Filtration

Primary self cleaning cyclone filters to remove 95% + of dust, secondary media, HEPA as option.

4

Extreme Shock and Vibration

Typical Mobile Applications. Fatigue qualified for continuous and erratic shock and vibration.

5

Smart Control

On Board Intelligence and Data Logging. System safe running modes to eliminate immediate system shut down.

6

Rugged & Reliable

Solid construction for rough terrains and potential mechanical damage.

7

Easy and Quick Maintenance

Simple access doors, removable subsystem modules.

8

Mil.Std 810 & 461 Qualified

Design, Manufacturing and Qualification Conform to International Military Standards.
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Specifications

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Product Video



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