Patents by Inventor Honglong Zhou

Honglong Zhou 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).

  • Exhaust gas aftertreatment system for diesel engine and method of detecting abnormal injection
    Patent number: 10851695
    Abstract: Disclosed is an exhaust gas aftertreatment system (1) for a diesel engine, the exhaust gas aftertreatment system comprising: a treatment agent tank (2) for storing an exhaust gas treatment agent; a metering injection module (4), with the injection of the metering injection module (4) being controlled with a determined duty ratio signal according to a desired injection amount; a supply module (3) connected between the treatment agent tank (2) and the metering injection module (4) for supplying the exhaust gas treatment agent to the metering injection module (4); an exhaust gas treatment agent pipe (6) connected between the metering injection module (4) and the supply module (3); a pressure sensor for measuring the system pressure in the exhaust gas treatment agent pipe (6); and a controller (7); wherein the controller (7) is configured to receive a system pressure signal from the pressure sensor during injection of the metering injection module (4), and detect an injection abnormality of the metering injection
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 1, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Yujiang Xu, Ling Li, Honglong Zhou, Siwei Dong
  • EXHAUST GAS AFTERTREATMENT SYSTEM FOR DIESEL ENGINE AND METHOD OF DETECTING ABNORMAL INJECTION
    Publication number: 20190316504
    Abstract: Disclosed is an exhaust gas aftertreatment system (1) for a diesel engine, the exhaust gas aftertreatment system comprising: a treatment agent tank (2) for storing an exhaust gas treatment agent; a metering injection module (4), with the injection of the metering injection module (4) being controlled with a determined duty ratio signal according to a desired injection amount; a supply module (3) connected between the treatment agent tank (2) and the metering injection module (4) for supplying the exhaust gas treatment agent to the metering injection module (4); an exhaust gas treatment agent pipe (6) connected between the metering injection module (4) and the supply module (3); a pressure sensor for measuring the system pressure in the exhaust gas treatment agent pipe (6); and a controller (7); wherein the controller (7) is configured to receive a system pressure signal from the pressure sensor during injection of the metering injection module (4), and detect an injection abnormality of the metering injection
    Type: Application
    Filed: December 16, 2016
    Publication date: October 17, 2019
    Inventors: Yujiang Xu, Ling Li, Honglong Zhou, Siwei Dong