Volkswagen EuroVan EGR Valve

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Delphi EGR Valve - Delphi Electronic Gasoline Exhaust Gas Recirculation (EGR Valve) Valves re-circulate metered amounts of exhaust gas into the engine's intake system to help limit the formation of nitrogen oxides (NOx) emissions. Delphi offers a family of gasoline EGR valves featuring pintle seat configuration and based on a proven electronically actuated gasoline exhaust gas recirculation valve technology.

Pierburg EGR Valves - The effect of exhaust gas recirculation is based on a lowering of combustion temperature on diesel and gas engines. The lower temperature leads to a reduction in nitrogen oxides. On gas engines, this also brings about a dethrottling of the engine under part-load conditions and hence fuel consumption reduction.

Available is a wide variety of EGR valves: rugged pneumatic valves with modulation of the open control pressure to electric motor-controlled valves which combine high actuating forces, very precise control and favorable dynamic properties.

In combination with Pierburg aluminum coolers and exhaust gas flaps, EGR valves control the pressure difference for a further significant abatement in nitrogen oxides. An intelligent integration of all the EGR components such as valves, flaps, bypass devices, coolers and lines results in a cost-effective solution with extended service life.