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1. 发明申请

US20210270173A1 AN EXHAUST AFTERTREATMENT UNIT FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE 有权
公开(公告)号：US20210270173A1
公开(公告)日：2021-09-02
申请号：US17276670
申请日：2019-10-08
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N3/28 , F01N3/10 , F01N3/20
摘要： The invention relates to a leakage treatment member (50) and an exhaust aftertreatment unit (40) configured to be sealingly arranged in a fluid passage (30) of an exhaust aftertreatment system for treating exhaust from an internal combustion engine, said exhaust aftertreatment unit (40) comprising an exhaust aftertreatment element (42) confined by an outer wall (44) of said exhaust aftertreatment unit, said leakage treatment member being configured to be arranged between:—an inner perimeter (32) of the fluid passage of the exhaust aftertreatment system, and—the outer wall of the exhaust aftertreatment unit, the leakage treatment member comprising an exhaust aftertreatment component for aftertreatment of any leakage of exhaust gases past said aftertreatment unit in said fluid passage.

2. 发明申请

US20210040876A1 EXHAUST AFTERTREATMENT SYSTEM FOR A COMBUSTION ENGINE 有权
公开(公告)号：US20210040876A1
公开(公告)日：2021-02-11
申请号：US16976347
申请日：2018-04-05
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N13/00 , F01N3/08 , F01N3/20 , F01N3/10 , F01N3/28
摘要： The invention relates to an exhaust aftertreatment system (1) for a combustion engine (110), comprising, an outer casing (2) comprising at least one exhaust gas inlet (3) and at least one exhaust gas outlet (4), at least one catalyst (6, 6′) being located in an inner volume (5) of the outer casing (2), wherein the system (1) is configured such that during use of the system (1) exhaust gas flows from the at least one exhaust gas inlet (3) at an inlet velocity, through the at least one catalyst (6, 6′) at a catalyst velocity, into the inner volume (5) outside the at least one catalyst (6, 6′) and to the at least one exhaust gas outlet (4), and further such that the exhaust gas flows in the inner volume (5) outside the at least one catalyst (6, 6) through at least one cross sectional area (A) being defined and limited by at least a perimeter surface (61, 61′) of the at least one catalyst (6, 6′) and an inner surface (21) of the outer casing (2) or by at least two catalyst parameter surfaces (61, 61′), wherein the at least one cross sectional area (A) is sized such that during use of the system (1) the exhaust gas flows through the at least one cross sectional area (A) at a first inner volume velocity being higher than the catalyst velocity, and wherein the system (1) further comprises at least one sensor (7) for measuring at least one parameter being related to the exhaust gas, said at least one sensor (7) being located in the inner volume (5) at a location where an exhaust gas flow velocity is higher than the catalyst velocity. The invention also relates to a vehicle (100) comprising such a system (1).

3. 发明申请

US20230003153A1 EXHAUST AFTERTREATMENT UNIT FOR CLEANING EXHAUST GASES 有权
公开(公告)号：US20230003153A1
公开(公告)日：2023-01-05
申请号：US17807525
申请日：2022-06-17
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N3/20 , F01N3/035 , F01N3/10 , F01N13/00 , B01D53/94 , B01D46/42 , B01D46/00
摘要： An exhaust aftertreatment unit for cleaning exhaust gases includes an emission reducing module being a diesel particulate filter, DPF, and/or a diesel oxidation catalyst, DOC, a selective catalyst reduction, SCR, catalyst, an electrical heating element arranged upstream of the emission reducing module, a casing housing at least the emission reducing module and the electrical heating element, and a service lid removably arranged to cover a service opening of the casing through which the emission reducing module may be accessed. The electrical heating element is removably arranged relative the casing and is arranged accessible upon removal of the service lid and the emission reducing module.

4. 发明申请

US20220381172A1 EXHAUST AFTERTREATMENT ARRANGEMENT FOR CLEANING EXHAUST GASES 有权
公开(公告)号：US20220381172A1
公开(公告)日：2022-12-01
申请号：US17804417
申请日：2022-05-27
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N3/20
摘要： An exhaust aftertreatment arrangement for cleaning exhaust gases includes a fluid channel for providing a fluid pathway for the exhaust gases, a selective catalyst reduction, SCR, catalyst, arranged in or downstream the fluid channel, a heating arrangement for heating the exhaust gases, the heating arrangement being arranged upstream of the SCR catalyst and comprising an electrical heating element, a first fluid pathway for guiding the exhaust gases to the electrical heating element, and a second fluid pathway for guiding the exhaust gases to bypass the electrical heating element, wherein the heating arrangement is removably arranged relative the fluid channel.

5. 发明申请

US20220307402A1 AN EXHAUST AFTERTREATMENT ARRANGEMENT FOR CONVERTING NOX EMISSIONS 有权
公开(公告)号：US20220307402A1
公开(公告)日：2022-09-29
申请号：US17654338
申请日：2022-03-10
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N3/20 , F01N3/28
摘要： An exhaust aftertreatment arrangement for converting NOx emissions. The exhaust aftertreatment arrangement includes a fluid channel for providing a fluid pathway for the exhaust gases, a selective catalyst reduction, SCR, catalyst, arranged in or downstream the fluid channel, an injector configured to inject a liquid reductant for providing ammonia to the SCR catalyst, the injector being arranged upstream of the SCR catalyst, a heating arrangement for heating the injected reductant, the heating arrangement being arranged upstream of the SCR catalyst and comprising an electrical heating element and at least one evaporation member configured to be heated by the heating element. The evaporation member is arranged in the fluid channel such that at least a portion of the injected liquid reductant comes into contact with the evaporation member when injected.

6. 发明申请

US20220307400A1 EXHAUST AFTERTREATMENT UNIT FOR CLEANING EXHAUST GASES 有权
公开(公告)号：US20220307400A1
公开(公告)日：2022-09-29
申请号：US17654335
申请日：2022-03-10
申请人： VOLVO TRUCK CORPORATION
发明人： Gert-Ove WAHLSTRÖM
IPC分类号： F01N3/20 , F01N3/035 , F01N3/10 , F01N13/00 , B01D53/94
摘要： An exhaust aftertreatment unit for cleaning exhaust gases. The exhaust aftertreatment unit includes an emission reducing module being a diesel particulate filter, DPF, and/or a diesel oxidation catalyst, DOC, a selective catalyst reduction, SCR, catalyst, an electrical heating element arranged upstream of the SCR catalyst, a casing housing at least the emission reducing module, and a service lid removably arranged to cover a service opening of the casing through which the emission reducing module may be accessed. The electrical heating element is removably arranged relative the casing and is arranged accessible upon removal of the service lid.

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