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    Process of controlling operation in a multi-cylinder engine
    1.
    发明授权
    Process of controlling operation in a multi-cylinder engine 有权

    公开(公告)号：US10215125B2

    公开(公告)日：2019-02-26

    申请号：US15403373

    申请日：2017-01-11

    申请人： Caterpillar Motoren GmbH & Co. KG

    发明人： Eike Joachim Sixel ,  Andre Schmidt ,  Adam Stubbs ,  Kai Ruschmeyer ,  Christian Hoffmann

    IPC分类号： F02D41/30 ,  F02D41/12 ,  F02D17/02 ,  F02D41/00 ,  F02B75/18 ,  F02D41/06 ,  F02D41/08 ,  F02D13/06

    摘要： A process of controlling operation in a multi-cylinder engine either during start of operation or low-load conditions is disclosed. The process may include skipping a supply of fuel in a first set of cylinders of the multi-cylinder engine for a pre-defined number of multiple working cycles. The process may further include supplying fuel-air mixture to a second set of cylinders of the multi-cylinder engine for the pre-defined number of multiple working cycles. The process may also include executing combustion of the fuel-air mixture supplied to the second set of cylinders for the pre-defined number of multiple working cycles. In addition the process may include either changing a selection of cylinders included in the first set of cylinders and the second set of cylinders respectively, or switching the supply of fuel, after the pre-defined number of multiple working cycles, from the second set of cylinders to the first set of cylinders.

    GAS OR DUAL FUEL ENGINE
    2.
    发明申请
    GAS OR DUAL FUEL ENGINE 有权
    燃气或双燃料发动机

    公开(公告)号：US20150252738A1

    公开(公告)日：2015-09-10

    申请号：US14641154

    申请日：2015-03-06

    申请人： Caterpillar Motoren GmbH & Co. KG

    发明人： Eike SIXEL ,  Adam Stubbs ,  Aradhita Subirkumar Chakrabarty ,  Daniel Wester ,  Rodney Stazicker ,  Michael Andrew Snopko ,  Arvind Sivasubramanian

    IPC分类号： F02D19/06

    CPC分类号： F02D19/0607 ,  F02D19/0626 ,  F02D41/0025 ,  F02D41/005 ,  F02D41/0085 ,  F02D41/0087 ,  F02D41/401 ,  F02D2200/0618 ,  F02D2200/1002 ,  F02D2250/18 ,  F02D2250/32 ,  Y02T10/36 ,  Y02T10/44 ,  Y02T10/47

    摘要： A method of operating a gas or dual fuel engine having a plurality of cylinders, includes monitoring a characteristic of each of the plurality of cylinders during operation of the gas or dual fuel engine. The method also includes detecting a pre-ignition condition associated with one or more cylinders of the plurality of cylinders based on the monitored characteristic. The method further includes reducing fuel supply to the one or more cylinders having the pre-ignition condition. The fuel supply to remaining cylinders of the plurality of cylinders is increased, to maintain a constant power output of the gas or dual fuel engine. The method further includes adjusting an amount of air supplied to each of the plurality of cylinders based on the increased amount of fuel supplied to the remaining cylinders, to maintain an air-to-fuel ratio within a desired range.

    摘要翻译： 一种操作具有多个气缸的气体或双燃料发动机的方法，包括在气体或双燃料发动机的操作期间监测多个气缸中的每一个的特性。 该方法还包括基于所监测的特性来检测与多个气缸中的一个或多个气缸相关联的预点火状态。 该方法还包括减少具有预燃条件的一个或多个气缸的燃料供给。 增加了对多个气缸的剩余气缸的燃料供应，以保持气体或双燃料发动机的恒定功率输出。 该方法还包括基于提供给剩余气缸的燃料量的增加来调节供应到多个气缸中的每一个的空气量，以将空气燃料比保持在期望的范围内。