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公开(公告)号:US20230003162A1
公开(公告)日:2023-01-05
申请号:US17855200
申请日:2022-06-30
申请人: Purem GmbH
摘要: A muffler for an exhaust system of an internal combustion engine includes a muffler housing with a peripheral wall which extends longitudinally in the direction of a housing longitudinal axis. At least one base wall is surrounded by the peripheral wall or/and retained on the peripheral wall and delimits a chamber in the muffler housing. At least one base wall opening is surrounded by an opening edge region which is bent at an essentially plane base wall region of the base wall essentially in the direction of the housing longitudinal axis. The at least one base wall opening receives an exhaust pipe with a press fit in at least one base wall.
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公开(公告)号:US11519312B2
公开(公告)日:2022-12-06
申请号:US17314590
申请日:2021-05-07
申请人: Purem GmbH
IPC分类号: F01N3/20
摘要: An exhaust gas heater for an exhaust gas system of a combustion engine includes a disk-like carrier defining a heater longitudinal axis and having a first axial side. The carrier has an outer peripheral region disposed radially outwardly of the longitudinal axis and a radially inwardly disposed central region. A heating conductor has a heating region arranged on the first axial side of the carrier. At least one holding member holds the heating conductor on the carrier. The holding member includes at least one holding portion engaging around the heating conductor at the heating region thereof. The carrier has at least one fastening opening formed therein. The holding member includes at least one fastening portion engaging into the at least one fastening opening so as to be fixed to the carrier.
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公开(公告)号:US20220386419A1
公开(公告)日:2022-12-01
申请号:US17828704
申请日:2022-05-31
申请人: Purem GmbH
发明人: Holger Brenner
摘要: An exhaust-gas heater for an exhaust system for an internal combustion engine includes a heating conductor with a first supply-voltage terminal, a second supply-voltage terminal and a heating region extending between the first supply-voltage terminal and the second supply-voltage terminal. A voltage-measuring section is integrated into the heating region.
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公开(公告)号:US11486286B2
公开(公告)日:2022-11-01
申请号:US17241423
申请日:2021-04-27
申请人: Purem GmbH
摘要: A connection unit for an exhaust gas heater in an exhaust gas system of a combustion engine includes an electrically conducting connection element, elongated in the direction of a connection element longitudinal axis (L). The connection element has an inner connection region for connection to a heating conductor and an outer connection region for connection to an electrical supply. A carrier arrangement surrounds the connection element and an insulating arrangement insulates the connection element with respect to the carrier arrangement.
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公开(公告)号:US11486285B2
公开(公告)日:2022-11-01
申请号:US16951816
申请日:2020-11-18
申请人: Purem GmbH
IPC分类号: F01N3/20
摘要: An exhaust gas heater, for an internal combustion engine exhaust system, includes a support (22) with an outer circumferential area (24), arranged radially outside in relation to a heater longitudinal axis (A), and a central area (26). A heating conductor (42) is carried at the support and includes a helically wound heating section (44) on a first axial side (34) of the support. The central area is axially offset in a direction of the first axial side of the support in relation to the outer circumferential area such that a radially outer end section of the heating section, which outer end section is located in the area of the outer circumferential area of the support, and a radially inner end section (48) of the heating section, which inner end section is located in the area of the central area of the support, are axially offset in relation to one another.
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公开(公告)号:US11466629B2
公开(公告)日:2022-10-11
申请号:US17374463
申请日:2021-07-13
申请人: Purem GmbH
发明人: Markus Lory , Markus Birgler , Matthias Grün , Andreas Wacker , Annika Zeumer , Ralph Schenk , Miljenko Novosel
摘要: An exhaust-gas flap device, especially for the exhaust-gas flow of an internal combustion engine, has a flap pipe and a flap plate that is supported, in the interior of the flap pipe, on a pivot shaft that is rotatable about a pivot axis. The exhaust-gas flap device further includes a pivoting drive for the pivot shaft with a drive element. A coupling unit couples the drive element to the pivot shaft for conjoint rotation about the pivot axis. Vibration-damping material is arranged in the region of the coupling unit.
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67.
公开(公告)号:US20220290598A1
公开(公告)日:2022-09-15
申请号:US17694189
申请日:2022-03-14
申请人: Purem GmbH
发明人: Carsten Kohberg , Markus Henzler , Arthur Wieland
摘要: An exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine includes an exhaust gas channel leading to a flow path switching unit. The flow path switching unit is configured for changing exhaust gas parts of an exhaust gas stream flowing through the exhaust gas channel, which are conducted into first and second exhaust gas flow paths downstream of the flow path switching unit. The first exhaust gas flow path and the second exhaust gas flow path lead to an exhaust gas outlet. An SCR catalyst unit is in the first exhaust gas flow path upstream of the exhaust gas outlet. A liquid bypass line drains liquid from a liquid collection region in the exhaust gas channel upstream relative to the switching unit. The liquid is drained to a liquid discharge region for discharging liquid into the second flow path downstream of the switching unit.
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公开(公告)号:US11441461B2
公开(公告)日:2022-09-13
申请号:US17036829
申请日:2020-09-29
申请人: Purem Gmbh
发明人: Benjamin Röhr , Herve Tchamgoue , Frank Berkemer , Ruben Hass , Benjamin Deuscher , Thomas Müller
IPC分类号: F01N3/05 , F01N3/28 , B01F25/431
摘要: A mixer device for an exhaust system of an internal combustion engine includes a tubular carrier (30) enclosing a mixer longitudinal axis (A) in a ring shape configuration and a mixer insert (28) carried at the carrier (30). The mixer insert (28) has a plurality of connection attachments (52, 54, 56) located at spaced locations from one another in relation to the mixer longitudinal axis (A) radially on the outside. The carrier (30) has a plurality of connection recesses (60, 62) for the permanent connection of the mixer insert (28) to the carrier (30).
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69.
公开(公告)号:US20220251994A1
公开(公告)日:2022-08-11
申请号:US17666135
申请日:2022-02-07
申请人: Purem GmbH
发明人: Shengxiao Lin
摘要: An exhaust gas treatment assembly includes a housing and an exhaust gas treatment section accommodating chamber in the housing for accommodating an exhaust gas treatment section therein so as to permit the treatment section to be removed from the housing. An exhaust gas supply duct leads to the housing and is open to the housing via a housing inlet region. A main mixing section accommodating chamber accommodates a main mixing section in such a way that the main mixing section can be removed from the housing. A first exhaust gas treatment section inlet region is open to the housing inlet region to receive exhaust gas from the exhaust gas supply duct. A first exhaust gas treatment section outlet region is open to a main mixing section exhaust gas inlet region of the main mixing section.
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公开(公告)号:US20220178290A1
公开(公告)日:2022-06-09
申请号:US17545786
申请日:2021-12-08
申请人: Purem GmbH
发明人: Gerd Gaiser
摘要: The disclosure is directed to an exhaust gas heating unit for an exhaust gas system of an internal combustion engine. The exhaust gas heating unit includes at least one electrically conductive heating conductor element, wherein the at least one electrically conductive heating conductor element is configured from bent flat strip material. The exhaust gas system conducts exhaust gas defining an exhaust gas primary flow direction (H). The heating conductor element can have a plurality of broad sides arranged to be substantially parallel to the exhaust gas primary flow direction (H) and a plurality of end faces arranged substantially orthogonally to the exhaust gas primary flow direction (H).
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