Patents by Inventor Amy E. Fischer

Amy E. Fischer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aftertreatment system incorporating hydrolysis catalyst with particulate filtration and SCR
    Patent number: 9677440
    Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 13, 2017
    Assignee: Caterpillar Inc.
    Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
  • Aftertreatment System Incorporating Hydrolysis Catalyst with Particulate Filtration and SCR
    Publication number: 20150198069
    Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 16, 2015
    Applicant: Caterpillar Inc.
    Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
  • Aftertreatment system incorporating hydrolysis catalyst with particulate filtration and SCR
    Patent number: 9016050
    Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver
  • AFTERTREATMENT SYSTEM INCORPORATING HYDROLYSIS CATALYST WITH PARTICULATE FILTRATION AND SCR
    Publication number: 20140165540
    Abstract: An aftertreatment system is disclosed. The aftertreatment system can include a hydrolysis catalyst disposed within a first canister adjacent to a downstream end of the first canister and a nozzle positioned to inject reductant into the first canister upstream of the hydrolysis catalyst. A particulate collection device, which may be catalyzed to promote NOX reduction in the presence of the reductant, can be disposed within a second canister of the aftertreatment system adjacent to an upstream end thereof. An exhaust conduit can extend from the downstream end of the first canister to the upstream end of the second canister. An interior volume within the exhaust conduit can extend from an upstream end adjacent to and in fluid communication with the hydrolysis catalyst to a downstream end adjacent to and in fluid communication with the particulate collection device.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: Caterpillar Inc
    Inventors: Amy E. Fischer, Matthew E. Leustek, Justin W. McMenamy, Brandon T. Shull, Ronald G. Silver