Patents Assigned to ULEMCO LTD.
  • Operating a compression ignition engine fuelled with a combination of a hydrocarbon fuel and hydrogen
    Patent number: 11092092
    Abstract: The invention concerns a method of operating a compression ignition engine (10) fuelled with a combination of a hydrocarbon fuel and hydrogen. The method comprises: during a cold start, fuelling the engine with the hydrocarbon fuel alone, or with the hydrocarbon fuel and a reduced proportion of hydrogen compared with warm miming conditions, and increasing the proportion of hydrogen used to fuel the engine as it warms up whilst running.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 17, 2021
    Assignee: ULEMCO LTD
    Inventors: Paul Turner, Trevor Jasper
  • Emission Control in an Engine Fuelled with a Combination of a Hydrocarbon Fuel and Hydrogen
    Publication number: 20210131368
    Abstract: The invention concerns a method of control of NOx emission from an internal combustion engine fueled with a mixture of a hydrocarbon fuel and hydrogen. The method comprises reducing the hydrogen content of the fuel mixture at high engine loads.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 6, 2021
    Applicant: ULEMCO LTD.
    Inventors: Paul Turner, Trevor Jasper
  • Operating a Compression Ignition Engine Fuelled with a Combination of a Hydrocarbon Fuel and Hydrogen
    Publication number: 20210131361
    Abstract: The invention concerns a method of operating a compression ignition engine (10) fuelled with a combination of a hydrocarbon fuel and hydrogen. The method comprises: during a cold start, fuelling the engine with the hydrocarbon fuel alone, or with the hydrocarbon fuel and a reduced proportion of hydrogen compared with warm miming conditions, and increasing the proportion of hydrogen used to fuel the engine as it warms up whilst running.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 6, 2021
    Applicant: ULEMCO LTD
    Inventors: Paul Turner, Trevor Jasper
  • Leak Detection in a Hydrogen Fuelled Vehicle
    Publication number: 20210047971
    Abstract: The invention concerns a method of detecting hydrogen leakage from a power plant installation using hydrogen as fuel. A rate of supply of hydrogen to the power plant (“the supply rate”) is determined. A rate of change of mass of hydrogen in the tank arrangement (“the rate of mass change”) is determined. The supply rate is compared with the rate of mass change to determine whether leakage is taking place.
    Type: Application
    Filed: January 18, 2019
    Publication date: February 18, 2021
    Applicant: ULEMCO LTD.
    Inventors: Paul Turner, Trevor Jasper