Patents by Inventor Randy Cvelbar

Randy Cvelbar 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).

  • Patent number: 11193412
    Abstract: An automotive exhaust aftertreatment system includes a reagent mixer. The reagent mixer includes a mixer body and doser that injects a reagent into the mixer body. The reagent mixer mixes an exhaust gases and the reagent prior to the exhaust gases being discharged from the reagent mixer.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: December 7, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: Randy Cvelbar, Eduardo Alano, Amee Bhatt, Amaresh Rakkasagi
  • Publication number: 20210095587
    Abstract: An automotive exhaust aftertreatment system includes a reagent mixer. The reagent mixer includes a mixer body and doser that injects a reagent into the mixer body. The reagent mixer mixes an exhaust gases and the reagent prior to the exhaust gases being discharged from the reagent mixer.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 1, 2021
    Inventors: Randy Cvelbar, Eduardo Alano, Amee Bhatt, Amaresh Rakkasagi
  • Patent number: 10933387
    Abstract: The present disclosure relates to mixing devices included in automotive exhaust treatment systems. More particularly, the present disclosure relates to reducing agent mixers for mixing reducing agents with exhaust streams to induce a chemical reaction between the reducing agent and exhaust gasses to reduce Nitrous Oxides (NOx) in the exhaust gas. Reducing agent mixers in accordance with the present disclosure include reducing agent delivery devices for conducting reducing agents into an internal mixing space through which exhaust gasses flow.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 2, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Randy Cvelbar
  • Patent number: 10683787
    Abstract: An automotive exhaust aftertreatment system includes an onboard ammonium carbamate reactor. The onboard ammonium carbamate reactor is coupled to a diesel emission fluid reservoir also included in the system and is configured to generate aqueous ammonium carbamate solution from diesel emission fluid. A hybrid heating system for use with the ammonium carbamate reactor is provided in this disclosure.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: June 16, 2020
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: John Rohde, Edward Kinnaird, Madhuri Gandikota, Randy Cvelbar, Eric Ker
  • Publication number: 20200149450
    Abstract: An automotive exhaust aftertreatment system includes an onboard ammonium carbamate reactor. The onboard ammonium carbamate reactor is coupled to a diesel emission fluid reservoir also included in the system and is configured to generate aqueous ammonium carbamate solution from diesel emission fluid. A hybrid heating system for use with the ammonium carbamate reactor is provided in this disclosure.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Inventors: John Rohde, Edward Kinnaird, Madhuri Gandikota, Randy Cvelbar, Eric Ker
  • Publication number: 20190201854
    Abstract: The present disclosure relates to mixing devices included in automotive exhaust treatment systems. More particularly, the present disclosure relates to reducing agent mixers for mixing reducing agents with exhaust streams to induce a chemical reaction between the reducing agent and exhaust gasses to reduce Nitrous Oxides (NOx) in the exhaust gas. Reducing agent mixers in accordance with the present disclosure include reducing agent delivery devices for conducting reducing agents into an internal mixing space through which exhaust gasses flow.
    Type: Application
    Filed: October 21, 2016
    Publication date: July 4, 2019
    Inventor: Randy CVELBAR
  • Publication number: 20130334328
    Abstract: A dual-valve reverse poppet thermostat for use in a vehicle cooling system. The thermostat includes a cup having a temperature sensitive element that actuates a piston causing the piston to move axially upwards. Movement of the piston initiates the gradual opening of a preliminary valve to initiate coolant flow and equalize pressure to open a main valve. The preliminary valve and main valve are biased towards a closed position by biasing spring members.
    Type: Application
    Filed: February 8, 2012
    Publication date: December 19, 2013
    Applicant: Caltherm Corporation
    Inventors: Marty Iwamuro, Curtis Hicks, Randy Cvelbar, Jeremiah Hendren, John Rohde, Bruce Abel