초록

An apparatus for gas recirculation in an internal combustion engine in which recirculation is effected via a connecting line (2) in which a filter element (4) is arranged between the exhaust duct and the connection on the intake device of the internal combustion engine.

대표청구항 ▼

1. An apparatus for gas recirculation in an internal combustion engine comprising a connecting line leading from a recirculation gas source to a connection to the intake device of the engine, wherein a filter element is arranged in said connecting line between the recirculation gas source and the co

1. An apparatus for gas recirculation in an internal combustion engine comprising a connecting line leading from a recirculation gas source to a connection to the intake device of the engine, wherein a filter element is arranged in said connecting line between the recirculation gas source and the connection to the intake device of the internal combustion engine, wherein said filter element comprises a readily replaceable filter and wherein said filter is integrated in an engine air intake duct. 2. An apparatus according to claim 1, wherein said recirculation gas source is an exhaust pipe of the internal combustion engine. 3. An apparatus according to claim 1, wherein said recirculation gas source is a crankcase ventilator for the internal combustion engine. 4. An apparatus according to claim 1, wherein the filter element is arranged in the connecting line as an inline filter. 5. An apparatus according to claim 1, wherein the filter element is arranged in a connecting flange of the intake device of the internal combustion engine. 6. An apparatus according to claim 1, wherein said filter element comprises an electrostatic separator. 7. An apparatus according to claim 1, wherein said filter element comprises at least one cyclone separator. 8. An apparatus according to claim 7, wherein said filter element comprises a series of cyclone separator cells. 9. An apparatus according to claim 1, wherein said filter element comprises a readily replaceable filter. 10. An apparatus according to claim 9, wherein said filter is integrated in an exhaust gas recirculation valve. 11. An apparatus according to claim 1, wherein said filter element comprises a heat-resistant filter medium. 12. An apparatus according to claim 11, wherein said heat-resistant filter medium is selected from the group consisting of pressed parts made of high-grade steel, ceramic fiber filters, pressed parts made of glass fibers, and pressed parts made of mineral fibers. 13. An apparatus according to claim 11, further comprising an electrical energy supply for periodically heating the heat-resistant medium to a temperature above the burning temperature of soot to clean the filter element and increase the service life of the filter. 14. An apparatus according to claim 1, further comprising a particle separator arranged upstream from the filter element. 15. An apparatus according to claim 14, wherein said particle separator comprises at least one cyclone separator. 16. An apparatus according to claim 15, wherein said particle separator comprises a series of cyclone separator cells.