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公开(公告)号：US20190048769A1
公开(公告)日：2019-02-14
申请号：US16075470
申请日：2017-01-19
Applicant: Scania CV AB
Inventor： Henrik ERIKSSON , Mattias BERGER , Ulf NYLÉN , Håkan SARBY , Jonas ASPFORS , Hanna LIND , Klas OLOFSSON , Daniel HJORTBORG
Abstract: An engine system is provided that uses lubrication oil that forms water-soluble ash when combusted. The engine system comprises an internal combustion engine lubricated by the lubrication oil; an exhaust gas system for cleaning exhaust gases from the internal combustion engine, the exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, wherein the particulate matter comprises the water-soluble ash; an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system; and condensation means to accumulate condensed water and/or to form an increased amount of condensed water and arranged in fluid connection with the exhaust gas flow upstream of the diesel particulate filter. The exhaust gas conduit is arranged to collect condensed water and lead the condensed water through the diesel particulate filter, thereby dissolving and thus removing the water-soluble ash from the diesel particulate filter.
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公开(公告)号：US20190040777A1
公开(公告)日：2019-02-07
申请号：US16075459
申请日：2017-01-19
Applicant: Scania CV AB
Inventor： Henrik ERIKSSON , Mattias BERGER , Ulf NYLÉN , Håkan SARBY , Jonas ASPFORS , Hanna LIND , Klas OLOFSSON , Daniel HJORTBORG
Abstract: An engine system comprising an internal combustion engine operated by a fuel and lubricated by a lubrication oil comprising at least one additive that renders ash formed by combustion of the lubrication oil ammonia-soluble ash; an exhaust gas system for cleaning an exhaust gas flow from the internal combustion engine , the exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, wherein the particulate matter comprises the ammonia-soluble ash; an exhaust gas conduit to lead exhaust gases from the internal combustion engine through the exhaust gas system; and an injection device to add a solvent comprising ammonia or an ammonia-forming compound into the exhaust gas flow upstream of the diesel particulate filter, wherein the exhaust gas conduit collects the solvent and lead the solvent through the diesel particulate filter, thereby dissolving and thus removing the ammonia-soluble ash from the diesel particulate filter.
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3.发明申请公开(公告)号：US20190301346A1
公开(公告)日：2019-10-03
申请号：US16337246
申请日：2017-08-22
Applicant: Scania CV AB
Inventor： Anders GAWELL , Daniel HJORTBORG
Abstract: Provided is an exhaust system for an internal combustion engine comprising: a first exhaust conduit leading from a first exhaust bank of the engine to a first turbocharger turbine inlet arranged downstream of the first exhaust bank in the direction of travel of a first exhaust stream; a second exhaust conduit leading from a second exhaust bank of the engine to a second turbocharger turbine inlet arranged downstream of the second exhaust bank in the direction of travel of a second exhaust stream; an SCR catalyst arranged downstream of the first turbocharger turbine inlet and/or second turbocharger turbine inlet; and a reductant supply system comprising a distributor pipe and a reductant injector. The distributor pipe is configured to fluidly connect the first exhaust conduit to the second exhaust conduit upstream of the first turbocharger turbine inlet and second turbocharger turbine inlet, and the reductant injector is configured to supply a reductant to the distributor pipe.
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公开(公告)号：US20190040785A1
公开(公告)日：2019-02-07
申请号：US16075480
申请日：2017-01-19
Applicant: Scania CV AB
Inventor： Henrik ERIKSSON , Mattias BERGER , Ulf NYLÉN , Håkan SARBY , Jonas ASPFORS , Hanna LIND , Klas OLOFSSON , Daniel HJORTBORG
Abstract: The present invention relates to use of a lubrication oil that forms water-soluble ash when combusted in an engine system, where the engine system comprises an internal combustion engine; an exhaust gas system comprising a diesel particulate filter to capture particulate matter from the exhaust gases, including the water-soluble ash; and an exhaust gas conduit to lead exhaust gases from the internal combustion engine to the exhaust gas system, and to collect condensed water formed by a cold start and/or a cold operation of the internal combustion engine and lead the condensed water through the diesel particulate filter, thereby dissolving and removing the water-soluble ash from the diesel particulate filter.
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