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Bosch Rexroth offers a range of hydrostatic fan drive systems that can assist with the cooling of engines and exhaust systems in rail vehicles.

By continuously adjusting cooling effort to match changing requirements, the systems reduce energy use compared with traditional solutions.

They also occupy up to 20 per cent less space in the engine compartment.

According to the company, Rexroth hydrostatic fan drive cooling systems provide designers with a convenient and dependable way of optimising engine and combustion temperatures, which is an essential pre-requisite for satisfying increasingly stringent emission requirements.

With higher exhaust gas standards such as Euro 6, Tier 4, environmental sensitivity has become more important with higher exhaust gas standards.

Radiator cooling capacity may need to rise by up to 40 per cent, resulting in size increases of 20 per cent.

Rexroth fan drives that are applied to engines and exhaust systems compensate for this and reduce noise pollution, reducing the impact on the environment.

The robust Bodas RC controller is a programmable vehicle PLC.

It ensures the fan is always operating at the right speed from when the engine is cold, to ensure minimum time in the inefficient warm up phase, to maximum speed when the engine is operating at full power.

This keeps the engine temperature and efficiency at optimum levels, irrespective of engine the speed.

The controller can be connected to the CAN bus of the engine, thus making additional sensors unnecessary.

There are options on drives, pumps and number of sensors to suit the particular vehicle and Rexroth will work with individual customers to ensure the best and most economical option is chosen.

In complex applications, multiple controllers can be connected via the CAN bus to form a network.

The number of inputs and outputs can be extended quickly and economically, and safety features are integrated in the standard version to facilitate simple and reliable machine diagnostics.

Matched to the RC controllers, the Bodas software modules offer preconfigured application solutions for drive and working hydraulics.

Bosch Rexroth

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, and Factory Automation to develop innovative components as well as tailored system solutions and services.

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, and Factory Automation to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 33,700 associates generated sales revenue of approximately 5.6 billion euros in 2014.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 360,000 associates worldwide. The company generated sales of 49 billion euros in 2014. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including its sales and service partners, Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2014, Bosch applied for some 4,600 patents worldwide. The Bosch Group’s strategic objective is to create solutions for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

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