Bosch is a worldwide leader in Diesel Fuel Injection technology for over a century. Starting from the first inline fuel injection pump introduced in 1927 to the state of the art fourth generation Common Rail Systems, Bosch has pioneered every invention in Diesel Fuel Equipment.

Over the last century Bosch has developed innovative products to suit the requirements of every diesel engine. It started with the inline and PF based pumps which work on helix based fuel quantity control with one pumping element for each engine cylinder. The development of injectors took place in parallel with one injector per cylinder of the diesel engine. These systems ruled the Diesel engines market for over five decades. In 1976 Bosch Introduced Distributor Pumps with which it could achieve higher injection pressures with better emissions. These pumps worked with a single plunger catering to the requirement of 4/6 cylinder engines. 1980s witnessed a growing influence of electronics in automotive technologies. Being the market leader, in mid 1980s Bosch introduced electronic control for its products. The Electronic Control Unit was used to control the working of inline and distributor pumps. This breakthrough helped diesel engines achieve better emissions with reduced noise.

As the requirements from the diesel market become more stringent, Bosch stood up to the challenge by introducing unit pumps, unit injectors and radial piston high pressure pump (VP 44) during the 1990s. These products proved that Bosch was the undisputed world leader in diesel technology.

In the year 1997 Bosch successfully developed the Novel idea of separating the fuel pressurization and injection timing by introducing the Common Rail Systems for Passenger Cars. The concept of introducing an accumulator (Rail) between the pump and the injector to achieve better control and higher pressure was a break through for the future. These systems which work on with a Electronic Control Unit controlling the complete system, marked the beginning of a new era in diesel technology. Common Rail System are capable of delivering very prices quantity of fuel at very high pressures and very accurate timing to the engine. These have resulted in significant improvements in combustion. Diesels are no longer noisy and polluting but became powerful and efficient. The fact that around 50% of the called sold in Europe are diesel cars stands as a testimony to this. In the new century Bosch has further introduced improvements in the Common Rail technology and extended it to commercial vehicle segments as well. Today Bosch is working on the state of the art 4th generation Common Rail Systems with pressure capabilities of well over 2000 bar. These products will continue to make diesel engines cleaner, safer, quieter and more economical.