Internal combustion engine having a retarder
AssigneeKlockner-Humboldt-Deutz Aktiengesellschaft
InventorsPaul Tholen, Leo Lichtblau, Friedemann Albers, Dieter Esche
Life of this patent
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Abstract
An internal combustion engine having a retarder and a heat exchanger which re-cools the retarder oil, with cooling air being supplied to the heat exchanger during the braking operation. The internal combustion engine is provided with an exhaust conduit in which is arranged a blocking device for closing off the exhaust conduit during the braking operation, with the thus retained gas flow being utilized for conveying the cooling-air flow to the retarder oil heat exchanger.
Claims8
An arrangement for an internal combustion engine having an exhaust conduit, a retarder, and a heat exchanger connected to said retarder for re-cooling retarder oil, cooling air being supplied to said heat exchanger during a braking operation of said internal combustion engine, the improvement in combination therewith comprising a blocking device arranged in said exhaust conduit for at least partially closing off said exhaust conduit during a braking operation and thus retaining gas flowing from said internal combustion engine, said retained gas flow being utilized for effecting said supplying of cooling air to said heat exchanger, by-pass means provided as to said blocking device arranged in said exhaust conduit, and means for generating a cooling air flow being provided in said by-pass means, said means for generating a cooling air flow being driven by exhaust gas flowing through said by-pass means.
Dependencies are inferred from the claim text.