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公开(公告)号：US11131224B1
公开(公告)日：2021-09-28
申请号：US16853994
申请日：2020-04-21
Applicant: Caterpillar Inc.
Inventor： Kevin Lloyd Dea , James Harris Mutti , Thomas Reilly Fenelon
Abstract: An exhaust system includes an exhaust pressure sensing system having sensor conduits structured to fluidly connect to an exhaust conduit in an exhaust system and feed exhaust to a differential pressure sensor. The differential pressure sensor produces a pressure signal indicative of a pressure drop across an exhaust aftertreatment element such as an exhaust filter. A plugging-mitigation conduit provides an always-open leakage path to convey condensate in a stream of leaked exhaust between the sensor conduits to prevent formation of deposits that can impact pressure sensing accuracy.
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公开(公告)号：US20210324780A1
公开(公告)日：2021-10-21
申请号：US16853994
申请日：2020-04-21
Applicant: Caterpillar Inc.
Inventor： Kevin Lloyd Dea , James Harris Mutti , Thomas Reilly Fenelon
IPC: F01N11/00
Abstract: An exhaust system includes an exhaust pressure sensing system having sensor conduits structured to fluidly connect to an exhaust conduit in an exhaust system and feed exhaust to a differential pressure sensor. The differential pressure sensor produces a pressure signal indicative of a pressure drop across an exhaust aftertreatment element such as an exhaust filter. A plugging-mitigation conduit provides an always-open leakage path to convey condensate in a stream of leaked exhaust between the sensor conduits to prevent formation of deposits that can impact pressure sensing accuracy.
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