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Bosch at Agritechnica 2023

New injection technology for hydrogen engines – the alternative to diesel

  • Solution for the agricultural sector: the H2 engine is ideal for applications involving heavy loads and tough working conditions.
  • New Bosch hydrogen injector for direct injection works without additional lubrication.
  • Digital services combine vehicle data with Bosch expertise.

As different as the tasks of agricultural machinery are, all these vehicles have one thing in common: a diesel engine. Yet its use in the agricultural sector alone accounts for some 5 percent of Germany’s diesel consumption. Clearly, agricultural machinery needs to become more climate friendly. Bosch sees hydrogen, which can also be used to power heavy vehicles, as essential for achieving climate neutrality. With its solutions for the hydrogen engine, which can also serve as a suitable drive for specific applications in agriculture, the company wants to move further toward the establishment of a hydrogen economy. At Agritechnica 2023, it will be premiering a technical innovation: an injector for direct hydrogen injection that requires no additional lubrication. “Technologically, the new hydrogen injector for direct injection is a great leap forward,” says Jan-Oliver Röhrl, the executive vice president responsible for commercial vehicle powertrains in the Bosch Powertrain Solutions division.

In the course of a vehicle’s service life, the injector opens and closes roughly one billion times. To ensure that this always works reliably, the engineers developing the hydrogen engine had to overcome two challenges: one, the lubrication provided by the fuel in the diesel engine is absent; and two, the hydrogen may react with materials it comes into contact with. The engineers’ solution is a sophisticated design that keeps the media separate inside the injector, and uses various coating technologies. The systems for low-pressure direct and port injection have been developed for engines that can also be operated with heavy loads and in difficult environmental conditions. As a systems supplier, Bosch also offers electronic control units, products for storing and supplying hydrogen, and other powertrain components.

Besides fuel-cell applications and battery-electric powertrains, the hydrogen engine is another option in the powertrain mix of the future. Its concept is based on established diesel and natural-gas engines. This means that the fundamental structure of the engine, as well as the fuel, air-supply, and exhaust systems, can be transferred from existing powertrain solutions, along with a large number of other familiar system components. “More than 90 percent of the development and manufacturing technologies needed for the hydrogen engine already exist,” Röhrl says. “This allows us to maintain large parts of our value chain – and applies to the aftermarket as well.” In addition, the hydrogen engine consists primarily of steel and aluminum, which reduces dependencies on critical raw materials and their supply chains.

Making conventional systems fit for the future

At the same time, Bosch is continuing to improve its conventional diesel-injection and exhaust-gas treatment systems for commercial vehicles and the off-highway sector. “We want our solutions to help automakers worldwide further reduce CO2 and other emissions,” Röhrl says. For example, the modular CRSN common-rail system for commercial vehicles and off-highway applications exhibited at Agritechnica 2023 ensures efficient fuel supply and injection in diesel engines. It is scalable for pressure levels between 1,800 bar and 2,500 bar, and can be configured for engine sizes of up to eight cylinders. In addition, Bosch diesel technology can already run on renewable synthetic fuels. Such fuels can complement electromobility or hydrogen-based powertrains where these solutions face economic or physical challenges.

Digital services improve vehicle availability

Bosch also offers innovative digital services that cover the various phases of vehicles’ service lives. These services help identify problems during operation at an early stage, reduce quality costs, and avoid expensive downtime. The cloud-based, connected diagnostic services combine vehicle operating data with Bosch expertise. AI-based algorithms are used to gain additional valuable insights from the combined data. The result is a clear indication of the powertrain’s status when or before a problem occurs, enabling anomalies to be detected.

About Bosch

Bosch has been present in Belgium since 1907. The Bosch Group employs approximately 1,050 associates in Belgium. The main sites are located in Tienen, Anderlecht and Mechelen.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 428,000 associates worldwide (as of December 31, 2023). According to preliminary figures, the company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. 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.” The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. The basis for the company’s future growth is its innovative strength. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which roughly 48,000 are software engineers.

The company was set up in Stuttgart in 1886 by Robert Bosch (1861–1942) as “Workshop for Precision Mechanics and Electrical Engineering.” The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan over the long term and to undertake significant upfront investments in the safeguarding of its future. Ninety-four percent of the share capital of Robert Bosch GmbH is held by Robert Bosch Stiftung GmbH, a charitable foundation. The remaining shares are held by Robert Bosch GmbH and by a corporation owned by the Bosch family. The majority of voting rights are held by Robert Bosch Industrietreuhand KG, an industrial trust. The entrepreneurial ownership functions are carried out by the trust.

Additional information is available online at,,,,, and YouTube: Bosch Belgium

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