Wet biofuel compression ignition
    1.
    发明授权

    公开(公告)号:US11608799B2

    公开(公告)日:2023-03-21

    申请号:US17569873

    申请日:2022-01-06

    摘要: A compression ignition engine system allows use of hydrous fuels, in particular hydrous biofuels, with high water content (e.g., 20-85% water). The hydrous fuel is pressurized, and also preferably heated via the engine's exhaust gas, to increase its enthalpy, and is then directly injected into the engine cylinder(s) near top dead center. The system provides brake thermal efficiency increases of 20% or more versus a comparable system using conventional diesel fuel, while allowing the use of inexpensive undistilled or lightly distilled biofuels.

    ENGINE SYSTEM
    3.
    发明申请

    公开(公告)号:US20170138315A1

    公开(公告)日:2017-05-18

    申请号:US15297896

    申请日:2016-10-19

    摘要: An engine system is provided that includes a cylinder, an exhaust flow part, a purifying system, a water injector for injecting supercritical/subcritical water into the cylinder, a water supply passage connected with the water injector and for supplying the water, a first temperature increasing device disposed at a position of the exhaust flow part and for increasing a water temperature, and a second temperature increasing device including a part of the exhaust flow part and a part of the water supply passage, and for increasing a water temperature. The first device increases the water temperature when an exhaust gas temperature passing through the position of the exhaust flow part exceeds a reference temperature. The second device increases the water temperature when an exhaust gas temperature passing through the part of the exhaust flow part is above a water temperature passing the part of the water supply passage.

    Engine system
    5.
    发明授权

    公开(公告)号:US09915230B2

    公开(公告)日:2018-03-13

    申请号:US15297896

    申请日:2016-10-19

    摘要: An engine system is provided that includes a cylinder, an exhaust flow part, a purifying system, a water injector for injecting supercritical/subcritical water into the cylinder, a water supply passage connected with the water injector and for supplying the water, a first temperature increasing device disposed at a position of the exhaust flow part and for increasing a water temperature, and a second temperature increasing device including a part of the exhaust flow part and a part of the water supply passage, and for increasing a water temperature. The first device increases the water temperature when an exhaust gas temperature passing through the position of the exhaust flow part exceeds a reference temperature. The second device increases the water temperature when an exhaust gas temperature passing through the part of the exhaust flow part is above a water temperature passing the part of the water supply passage.

    CONTROL SYSTEM OF ENGINE
    6.
    发明申请

    公开(公告)号:US20170138314A1

    公开(公告)日:2017-05-18

    申请号:US15297978

    申请日:2016-10-19

    摘要: A control system of an engine including a cylinder and a fuel injector, the fuel mixing with air to form a mixture gas and combusting inside the cylinder is provided, which includes a water injector for injecting supercritical water or subcritical water into the cylinder, and a controller. Within a high engine speed operating range, the controller controls the water injector to inject the one of supercritical water and subcritical water into the cylinder for a given period including a top dead center of the cylinder on compression stroke, such that when an injection amount of the one of supercritical water and subcritical water reaches half of a given injection amount, a crank angle of the engine corresponds to a retarding side of the top dead center, the given injection amount being a total amount of the supercritical water or subcritical water injected for the given period.

    Internal combustion engines
    8.
    发明授权

    公开(公告)号:US10113513B2

    公开(公告)日:2018-10-30

    申请号:US15022944

    申请日:2014-09-22

    申请人: Hydro-Ject, LLC

    摘要: An internal combustion engine includes a combustion chamber. The chamber includes a body that is movable in the chamber to vary the chamber volume and contains a catalyst. First valving is operable to admit an intake gas into the chamber and second valving connected with an aqueous fluid supply system is operable to admit an aqueous fluid and a steam reforming fuel into the chamber. A controller is configured to cause the second valving to admit a aqueous fluid and an amount of the steam reforming fuel into the chamber and when a predetermined condition exists in the chamber during compression of the intake gas to absorb heat generated by the compression of the intake gas in the presence of the catalyst to promote a steam reformation process to separate hydrogen from the steam reforming fuel or the aqueous fluid.