Emissions legislation in Europe, North America and Japan presents manufacturers of commercial vehicles and mobile equipment with extraordinary challenges. The last phase of the ambitious emissions regulations will take effect in 2014 and will then only permit around 10% of today's soot and NOx emission levels.
Witzenmann is considered the preferred development partner by construction machinery and commercial vehicle manufacturers and consequently is closely involved in the development processes for meeting these stringent environmental standards. The company benefits from its broad product portfolio for onroad and offroad applications (ships, construction machinery and construction vehicles), and can draw on extensive experience in this field.
Early on, Witzenmann Engineering began cooperating with all notable international manufacturers on finding solutions for the ambitious goals and developing these to the point of maturity. The numerous reference projects with a Tier 4-compliant design are a testament to this technological lead. Notably, the Witzenmann Group has this broad application know-how available at its 23 worldwide locations. All subsidiaries make use of unrestricted access to the development expertise at the Pforzheimer head office and can offer their customers technologically advanced solution on location.
Its global network of modern production locations enables the group of companies to not only provide customer-oriented production but also to offer intensive technological support "at short distances". The importance of this capability is demonstrated by the development trends in regions with booming economies.
Currently, the TIER 4 final specifications only regulate the emission limits in the USA, Europe and Japan. However, globalisation is accelerating the harmonisation of standards. It can be expected that manufacturers in other countries will want to ensure the exportability of their vehicles and machinery. Witzenmann is prepared and ready to support its customers locally with advise and production capacities.
Figure 1: Oil return line
Figure 2: Bellows element with cast manifold
Figure 3: Bellows element with cast manifold
Figure 4: Expansion joint assembled ready to install