Bosch wrote automotive history from the start. Groundbreaking innovations like the magneto, diesel injection and advanced technologies like Common Rail all come from Bosch. The company’s new diesel injection system has had a decisive impact on the popularity of diesel in Western Europe.

Bosch Diesel Systems
The Diesel Systems division at Bosch develops, applies and manufactures diesel systems in a global network. They help make vehicles more dynamic, cleaner and more economic. Bosch is one of the world’s leading manufacturers of injection systems for diesel engines.

Common Rail
New injection systems from Bosch like the Common Rail make diesel engines more dynamic, economical, clean and quiet. These benefits already impress 50 percent of drivers in Western Europe. In addition, Common Rail is now the standard for modern heavy utility vehicles and ship engines.

How Common Rail works
Common Rail means “shared pipe”. Pressure is built up as diesel fuel is pumped continuously into a distributor pipe. This high-pressure pipe holds the fuel needed to supply all cylinders. Injection is performed under a pressure of up to 1600 bar in the injector. Injection can be separated into several phases (e.g. pre-injection, main injection and post-injection) to achieve the ideal combustion process. Common Rail optimizes the combustion process, improves the running properties of the engine and reduces emissions.

The advantages of Common Rail
This advanced injection technology from Bosch always injects just the right amount of fuel at exactly the right time. This is why Common Rail diesel engines provide real driving dynamism and smooth engine running. And they save a lot of fuel: with Common Rail, diesel cars consume 30% less than comparable gasoline cars. This not only brings big savings, but also lowers emissions and is therefore good for the environment too.

The future of diesel engines
Since 1997, Bosch engineers have developed Common Rail systems and contributed to the triumphal progress of diesel. In a period shaped by resource shortages, rising fuel prices and strict emission laws, diesel has become THE drive principle for our future, given the low fuel consumption, high range and low CO2 emissions it achieves. Not to mention that the excellent acceleration of state-of-the-art diesel engines really makes driving a pleasure!