New vitality for the gasoline engine

In the foreseeable future, combustion engines and electric engines, as well as hybrids, will co-exist as types of drives. The development of the share of combustion engines will depend on the extent to which they manage to become cleaner and more efficient.

A technology, which is well-known for the use in high performance engines, but still in the trial phase for modern series production, is water injection, preferably as performance-oriented DWI (Direct Water Injection) or ecological-economical PWI (Port Water Injection).

The combustion temperature is reduced by injecting water, instead of excess fuel (full-load enrichment), into the combustion chamber under a high load and, as a result, the performance is increased and fuel consumption is reduced. Consequently, this contributes to fulfilling the current and future emission standards which demand a drastic reduction in CO2 emissions.

However, the technology is challenging. Besides the question of whether the water should be fed from a separate, re-fillable tank or as a by-product of other processes in the vehicle, the furnishing of the system with fill level, temperature and quality sensors, as well as the heating design and the design of individual components, is a particular challenge.

The system must also be able to function at temperatures below 0 °C. Quick thawing and effectively protecting the water lines from freezing is essential.

With comprehensive experience over many years in the development of heating concepts for SCR lines, as well as cooling water applications, VOSS Automotive also has a broad basis for water injection solutions.  The electrically heated and coolant-heated line modules, optimized for this new application, can be adapted to customer and system-specific needs. Ask the experts at VOSS!