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Walker® is a leader in emission technologies for original equipment

Tenneco is working for low emissions for passenger cars, and light commercial vehicles, as well as for heavy-duty vehicles, and the motorcycle sector. With our expertise in hydro forming technologies, double walled air-gap components, catalytic converters, fabricated manifolds, and related emission control technologies, Walker® is a major contributor to the achievement of low-emissions and low-noise vehicles.

Emission Technologies for Environnemental Mandates

  • Diesel Oxidation Catalyst

    • Removes up to 90 % of carbon monoxide and hydrocarbons.
    • Suitable where ultra-low sulfur fuel is not available.
    • High temperature resistance.
    • Provides heat for regeneration of DPF, where applicable.
    • Applicable for light and heavy-duty applications.

  • Selective Catalytic Reduction (SCR)

    • An after treatment solution for NOx reduction: a gaseous or liquid reductant (most common commontly ammonia or urea) reacts with NOx on the substrate to form harmless water and nitrogen.
    • Meets 2010 emission regulations for heavy-duty trucks.
    • Meets Euro-4, Euro-5 and Euro-6.
    • Indirectly improves fuel economy by allowing an engine to run hotter and leaner.

  • ELIM-NOx technology:

is the 2nd generation SCR, a fully integrated system including injector, pump, filter, ECU, software, sensors and heater.

  • NOx Absorber Catalyst Systems

    • Alternative solution to Exhaust Gas Recirculation (EGR) and Selective Catalytic Reduction (SCR). NOx is converted and absorbed into a chemical storage site within the system.
    • The collected NOx is converted into non-polluting nitrogen (N2), Carbon dioxide (CO2) and water (H2O).
    • Good performance at high exhaust temperatures.
    • 90 % conversion efficiency.

  • Diesel Particulate Filter (DPF)

    • Filtration efficiency more than 95 %.
    • High temperature resistance.
    • Meets Euro-4, Euro-5 and Euro-6.
    • With regeneration.

  • Sound Engineering

    • Advanced prediction tools used with leading car manufacturers.
    • Use of prediction tools like Gillaum, GT-Power, Wave.

  • Winner of PACE Award

    • 2007: Diesel after treatment predictive development process.
    • 2006: Low cost low weight muffler.

  • Our original equipment customer

Audi - Audi A3 - Audi A4 - Audi A6 - BMW - BMW 1-series - BMW 3-series - BMW motorbikes - Chrysler - Chrysler Crossfire - Citroën - Citroën C4 - Citroën C5 - Citroën C6 - Citroën C8 - Citroën Jumpy - Fiat - Fiat Croma II - Fiat Ulysse - Ford - Ford Focus - Ford Focus C-Max - Ford Mondeo - Ford Galaxy - Jaguar - Jaguar S-Type - Jaguar XJ Series - Lancia - Lancia Phedra - Mercedes - Mercedes C-Class - Mercedes E-Class - Mercedes S-Class - Mercedes M-Class - Mercedes CLK - Mercedes Sprinter - MINI - Opel - Opel Corsa - Opel Astra - Opel Zafi ra - Opel Vectra - Opel Signum - Peugeot - Peugeot 307 - Peugeot 407 - Peugeot 607 - Peugeot 807 - Peugeot Expert - Porsche - Porsche Boxster - Porsche Cayman - Porsche 911 - Porsche Cayenne - Saab - Saab 9.3 - Saab 9.5 - Seat - Seat Altea - Seat Toledo - Seat Alhambra - Skoda - Skoda Octavia - Smart - Smart Forfour - Vauxhall - Vauxhall Corsa - Vauxhall Astra - Vauxhall Zafira - Vauxhall Vectra - Vauxhall Signum - Volkswagen - Volkswagen Golf V - Volkswagen Touran - Volkswagen Eos - Volkswagen Passat - Volkswagen T5 Transporter - Volkswagen LT3 - Volkswagen Caddy III - Volkswagen Touareg - Volvo - Volvo C30 - Volvo S40 - Volvo V50 - Volvo C70 - Volvo S60 - Volvo S80 - Volvo V70 - Volvo XC90

 Research

  • Tenneco provides full system engineering services for automotive industry manufacturers, from the initial design concept, through to the series production.
  • In the area of emission control, Walker® research and development center in Edenkoben, Germany, is the leader in advanced technologies for emission systems with particular competencies in the areas of:
    • Exhaust gas treatment
    • Gas flow dynamics
    • Thermal management
    • Acoustics
    • Lightweight designs