Turbo-machine arrangement
    1.
    发明授权

    公开(公告)号:US12006951B2

    公开(公告)日:2024-06-11

    申请号:US17861748

    申请日:2022-07-11

    IPC分类号: F04D29/58 F04D25/06

    摘要: A turbo-machine arrangement having a compressor section comprising a compressor shaft, an electric machine having a shaft, the compressor shaft is coaxial to the shaft. The compressor shaft is coupled to the electric machine shaft. The electric machine and compressor section are arranged in a common housing and mounted via bearings. The housing having a supply line via which uncompressed working medium is supplied, a discharge line, via which compressed working medium is discharged, and an ejector, supplied via a first connection with working medium at a first pressure level for drawing in working medium at a lower second pressure level via a second connection. A mixture formed in the ejector is supplied to the electric machine and/or another assembly to be cooled via a third connection.

    Exhaust gas after-treatment system of an engine designed as gas engine or dual-fuel engine, engine and method for operating the same

    公开(公告)号:US11719147B2

    公开(公告)日:2023-08-08

    申请号:US17986857

    申请日:2022-11-14

    发明人: Klaus Strobl

    IPC分类号: F01N13/08 F01N3/20 F01N3/24

    摘要: The exhaust gas after-treatment system of an engine configured as a gas engine or as a dual-fuel engine includes a catalyst, that can be flowed through by exhaust gas, a control tube extending through a recess in the catalyst, which control tube is movable relative to the catalyst and is flowable through by exhaust gas, and an actuator which is equipped to move the control tube relative to the catalyst dependent on at least one operating condition of the engine and/or at least one operating condition of the exhaust gas after-treatment system such that in a first relative position of the control tube relative to the catalyst, the catalyst can be flowed through by exhaust gas but not the control tube, and in a second relative position of the control tube relative to the catalyst, the control tube can be flowed through by the exhaust gas but not the catalyst.

    Method for operating an electric island power network

    公开(公告)号:US11637445B2

    公开(公告)日:2023-04-25

    申请号:US17178221

    申请日:2021-02-17

    IPC分类号: H02J13/00 H02J3/38 H02J1/14

    摘要: A method for operating an electric island power network having a renewable energy generation plant, a conventional energy generation plant, an energy store, and an energy consumer, includes: defining first operating parameters for the network for when a frequency and/or voltage of the network is outside defined limits; operating the network using the first operating parameters causing the frequency and voltage of the network to both be within the defined limits; defining second operating parameters for the network after the expiration of a defined time span over which the frequency and voltage have remained within the defined limits, the second operating parameters being defined such that operating the network using the second operating parameters causes the network to operate cost-optimally. If verified that the second operating parameters ensure that the frequency and voltage remain within the defined limits, operation using the second operating parameters is maintained. Otherwise, it is discontinued.

    FUEL SUPPLY SYSTEM OF AN ENGINE DESIGNED AS GAS ENGINE OR DUAL-FUEL ENGINE AND ENGINE

    公开(公告)号:US20230036725A1

    公开(公告)日:2023-02-02

    申请号:US17869450

    申请日:2022-07-20

    IPC分类号: F02M51/06

    摘要: A fuel supply system of an engine designed as a gas engine or dual-fuel engine, has at least one solenoid valve. The solenoid valve is designed for introducing gas fuel into charge air or into a charge air line leading to at least one cylinder of the engine. The respective solenoid valve includes a valve body and an actuator with at least one magnetic plate and with at least one coil for actuating the valve body. The at least one solenoid valve of the solenoid valve is formed out of a corrosion-resistant material or is coated with a corrosion-resistant material.

    Method and control device for operating a common-rail fuel supply system

    公开(公告)号:US11220986B2

    公开(公告)日:2022-01-11

    申请号:US15931319

    申请日:2020-05-13

    摘要: A method for operating a common-rail fuel supply system of an internal combustion engine includes determining, dependent on an operating point of the engine, a set point rate of delivery of the high-pressure pumping device, and a set point pressure for the pressure storage system under high pressure, determining, dependent on a deviation between the set point pressure and an actual pressure in the pressure storage system, for a first part quantity of the throttle valves a closed-loop control portion for the position of the respective throttle valve, and activating the first part quantity of the throttle valves with the closed-loop control portion in addition to open-loop control for only the respective throttle valve of the first part quantity of the throttle valves. The, or each, throttle valve of a second part quantity of the throttle valves is exclusively activated with the open-loop control portion.

    DUAL-FUEL INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20210404427A1

    公开(公告)日:2021-12-30

    申请号:US17357318

    申请日:2021-06-24

    IPC分类号: F02M37/00 F02M43/02 F02M43/04

    摘要: A dual-fuel internal combustion engine includes: cylinders for combusting a first liquid fuel having a first ignitability in a first operating mode, and a second liquid fuel having a second lesser ignitability, in a second operating mode; a main injection system including a main injector for each cylinder, for feeding the first liquid fuel to the respective cylinders in the first operating mode and for feeding the second liquid fuel to the respective cylinders in the second operating mode; and a pilot injection system including a pilot injector for each cylinder, via which the first liquid fuel can is feedable to the respective cylinders in the second operating mode for igniting the second liquid fuel. The main and pilot injection systems are coupled such that in the second operating mode the first liquid fuel, is feedable to the respective main injector as a working fluid and/or a barrier fluid.

    GAS SUPPLY SYSTEM FOR A GAS ENGINE OR DUAL-FUEL ENGINE AND METHOD FOR OPERATING THE SAME

    公开(公告)号:US20210396187A1

    公开(公告)日:2021-12-23

    申请号:US17351599

    申请日:2021-06-18

    IPC分类号: F02D19/06

    摘要: A gas supply system, having a gas regulating station for supplying an engine with gaseous fuel and a double-walled gas line extending from the gas regulating station to the engine, which comprises an inner and an outer pipe, in a gas fuel operating mode the inner pipe is flowed through by the gaseous fuel towards an engine-side end of the double-walled gas line, an inert gas purging line, and a first shut-off valve assigned to the inert gas purging line. In a purging mode inert gas can be fed to the outer pipe at the gas regulating station-side, which inert gas flows through the outer pipe in the direction of the engine-side end of the double-walled gas line, where it passes into the inner pipe and flows via the inner pipe towards the gas regulating station-side end of the double-walled gas line.

    Valve seat ring of a gas exchange valve and gas exchange valve

    公开(公告)号:US11193402B2

    公开(公告)日:2021-12-07

    申请号:US17097938

    申请日:2020-11-13

    IPC分类号: F01L3/02 F01L3/12 F01L3/22

    摘要: A valve seat ring for a gas exchange valve of a cylinder of an internal combustion engine includes: a one-part or multi-part main body defining a through-flow opening; and a valve seat region arranged on a portion of the main body in the region of the through-flow opening, a surface of the valve seat region forming a valve seat for a valve body of the gas exchange valve. At least into the main body at least one recess is introduced, which is at least partly filled with a solder material.

    Capacitive ignition system
    10.
    发明授权

    公开(公告)号:US10815955B2

    公开(公告)日:2020-10-27

    申请号:US13742407

    申请日:2013-01-16

    摘要: A capacitive ignition system for an internal combustion engine includes a voltage converter which has two primary terminals and two secondary terminals a primary voltage source has two voltage source terminals (A+, A−) which are connected in each instance to one of the primary terminals so that a primary circuit is formed; a switch which is incorporated within the primary circuit and a controller so that the switch can be closed and opened; a first control device constructed to actuate the controller in accordance with an ignition pattern for closing and/or opening; an electrical capacitance (C1, C2) within the primary circuit; and a second control device (25) constructed to maintain constant a voltage rise at the secondary terminals, which occurs in order to reach the ignition voltage, as the ignition energy requirement of an ignition device connected to the secondary terminals changes.