Piezo Injector Market Competition

Rival diesel fuel-injector suppliers are fighting a technology duel to win new business as tougher emissions rules take effect before the end of the decade.

German suppliers Robert Bosch and Siemens VDO Automotive say injectors using piezo technology are the only way that larger diesel engines can meet future Euro 5 rules. But rival Delphi says it can improve the performance of conventional solenoid – electromagnetic – injectors enough to avoid investing in piezo injectors.

The fifth and smallest of the leading injector manufacturers, Denso of Japan, plans to continue developing both technologies.

I) Bosch

The group was founded in 1967 as a joint venture between Robert Bosch GmbH (Stuttgart) and Siemens AG (Munich). In 2012 it posted annual revenue of about 9.8 billion Euros. Today, BSH operates 40 factories in 13 countries in Europe, the US, Latin America and Asia. Together with a global network of sales and customer service subsidiaries, the BSH family is today made up of about 70 companies in 50 countries, with a total workforce of over 46,000 people, of which more than 70 percent are employed in Europe. Its core lines include automotive systems, from diesel/hybrid drive to steering, starter motors and generators, electronics, and brakes. Subsidiary Bosch Rexroth makes electric, hydraulic, and pneumatic machinery for industrial use.

Bosh Automotive Technology

As one of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems - including body electronics, chassis and powertrain products - for vehicle manufacturers worldwide. Since its foundation 1886, the company accelerates the progress of Automotive Technology with continued innovations. 

In 1997, Bosch launched the first diesel engine to use Common Rail technology. Ever since, the company has produced more than 50 million of these systems.

In 2012, at least four of every five diesel vehicles sold worldwide were...