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Bosch & Weichai Power Increase Efficiency of Weichai Truck Diesel Engines

Auto News - Published on Tue, 29 Sep 2020

Image Source: Bosch Weichai Power
Bosch and the Chinese engine manufacturer Weichai Power have made a huge leap forward in engine technology. The two partners have successfully increased the efficiency of Weichai diesel engine for heavy commercial vehicles up to 50 percent, thus setting a new global benchmark. Currently, thermal efficiency for truck engines averages around 46 percent.

In addition to its common-rail system with injection pressure of 2,500 bar, Bosch also contributed its full technical know-how in fuel injection systems. Particularly when it comes to commercial vehicles, and above all when heavy loads have to be transported over long distances, the diesel engine will remain the preferred choice for the foreseeable future. For this reason, Bosch and Weichai aim to steadily refine this technology with an eye to protecting the climate and environment.

Bosch and Weichai launched their joint development project in September 2018. Bosch provides its modular common-rail system for the six-cylinder diesel engine with 12.9 liters displacement. Because it guarantees efficient fuel supply and injection, it is a critical element in ensuring the engine complies with the China VI emissions standard. The Bosch system can be used for pressure levels from 1,800 to 2,500 bar and configured for engine sizes up to eight cylinders. High injector flow rates make it possible to optimize the combustion strategy and achieve high engine performance. Depending on the demands it is subject to, the system can last for up to 1.6 million kilometers. The common-rail system is also designed to work with an electrified powertrain.

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Posted By : Yogender Pancholi on Tue, 29 Sep 2020
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