Fiat hopes to pass Euro 5 without NOx converter; Researchers like new electronic system for valve actuation.(News)(Fiat Research Center )(Brief Article)

Italian researchers are developing a new way to reduce nitrogen oxide emissions.

The Fiat Research Center (CRF) has created a variable-valve system that could help automakers fulfill Euro 5 emission requirements for diesel engines without the need of a catalytic converter for NOx.

CRF calls its new technology Uniair.

It is an electronically controlled, hydraulic valve-variable actuation system.

Value manipulation

For every cylinder in every cycle Uniair allows a valve to be actuated once, twice or not at all.

It also allows an early closing and/or late opening of ...