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    • 7. 发明专利
    • Internal combustion engine and control method
    • 内燃机和控制方法
    • JP2008002272A
    • 2008-01-10
    • JP2006169666
    • 2006-06-20
    • Tokyo Gas Co Ltd東京瓦斯株式会社
    • MORIMOTO TOMOHITOMATSUI TORUSAITO JUN
    • F02D41/14F01N3/08F02D35/00F02D45/00G01N27/26
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine and its operation control method capable of performing operation control on the basis of output of a NOx sensor by solving a drift problem of the NOx sensor.
      SOLUTION: The internal combustion engine comprises the nitrogen oxide sensor (9) arranged in an exhaust gas system (8), and a control means (10) for generating a control signal which controls an amount of fuel supply or an air ratio on the basis of the output of the nitrogen oxide sensor (9). The control means (10) is configured to control the amount of fuel supply or air ratio on the basis of the output of the nitrogen oxide sensor (9) after completing calibration of the nitrogen oxide sensor (9).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种通过解决NOx传感器的漂移问题,能够基于NOx传感器的输出来进行运行控制的内燃机及其运转控制方法。 解决方案:内燃机包括布置在排气系统(8)中的氮氧化物传感器(9)和用于产生控制信号的控制装置(10),控制信号控制燃料供应量或空气比 基于氮氧化物传感器(9)的输出。 控制装置(10)被配置为在完成氮氧化物传感器(9)的校准之后,基于氮氧化物传感器(9)的输出来控制燃料供给量或空气比。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Premixed gas compression self-igniting engine
    • 先进的气体压缩自我点火发动机
    • JP2007040311A
    • 2007-02-15
    • JP2006306298
    • 2006-11-13
    • Tokyo Gas Co Ltd東京瓦斯株式会社
    • SAKURAI TERUHIROAMANO TOSHIJIMORIMOTO TOMOHITOKAWABATA YASUHARU
    • F02M31/04F02M25/07F02M31/08F02M31/083F02M31/12
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a premixed gas compression self-igniting engine wherein output and efficiency are improved by supplying a great amount of fuel thereto, without causing breakage of the engine and degradation of the durability. SOLUTION: The premixed gas compression self-igniting engine is operated with the compression and self-ignition of premixed gas of fuel gas and intake air. It comprises a heating device HC provided in one of a plurality of intake ports communicated with an engine combustion chamber for heating mixture Gp, and a sensor 5 provided in the combustion chamber for detecting the operated condition. The sensor 5 is connected to a control device C/U via a signal line 5a, and the control device C/U and the heating device HC are connected to each other via a control line 20Ca. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种预混合气体压缩自燃发动机,其中通过向其中供应大量燃料而改善输出和效率,而不会引起发动机破损和耐久性劣化。

      解决方案:预混合气体压缩自燃发动机通过燃料气体和进气的预混合气体的压缩和自点火来运行。 它包括设置在与用于加热混合物Gp的发动机燃烧室连通的多个进气口中的一个中的加热装置HC,以及设置在燃烧室中用于检测操作状态的传感器5。 传感器5通过信号线5a连接到控制装置C / U,并且控制装置C / U和加热装置HC经由控制线20Ca相互连接。 版权所有(C)2007,JPO&INPIT

    • 9. 发明专利
    • Spark ignition type gas engine
    • 火花点火式发动机
    • JP2014181660A
    • 2014-09-29
    • JP2013058011
    • 2013-03-21
    • Yanmar Co Ltdヤンマー株式会社Tokyo Gas Co Ltd東京瓦斯株式会社
    • FUKUNISHI MASAYUKIODA YUSUKEHOTTA TERUHITONISHIDA KAZUOYAMAGISHI OSAMUSATO HIROSUKEMORIMOTO TOMOHITOISHIWADA NAOHIRO
    • F02D17/04F02D19/02F02D41/22F02D43/00F02D45/00
    • Y02T10/32Y02T10/40
    • PROBLEM TO BE SOLVED: To provide a spark ignition gas engine capable of stopping the whole engine without executing a cylinder deactivating operation, in a case when accidental fire is detected in one cylinder among a plurality of cylinders due to excessive supply of a fuel gas to a combustion chamber or mixing of cooling water into the combustion chamber.SOLUTION: A spark ignition type gas engine has a cylinder deactivating operation mode for executing a cylinder deactivating operation when accidental fire of one cylinder among a plurality of cylinders is detected, to stop supply of a fuel gas corresponding to one cylinder on which the accidental fire is detected, and to continue the operation by the remaining cylinders. When a fuel gas excessive supply condition or a cooling water mixing condition is satisfied in transferring to the cylinder deactivating operation mode during the operation, the cylinder deactivating operation mode is suspended and stopped, on the other hand, when the fuel gas excessive supply condition or the cooling water mixing condition is satisfied in a state of not transferring to the cylinder deactivating operation mode during the operation, the transferring to the cylinder deactivating operation mode is forbidden.
    • 要解决的问题:为了提供一种能够停止整个发动机而不执行气缸停用操作的火花点火燃气发动机,在由于燃料气体的过量供给而在多个气缸中的一个气缸中检测到意外的火灾的情况下 燃烧室或将冷却水混合到燃烧室中。解决方案:火花点火式燃气发动机具有用于在检测到多个气缸中的一个气缸的意外发生时执行气缸停用操作的气缸停用操作模式,以停止供应 对应于检测到意外火灾的一个气缸的燃料气体,并且继续其余气缸的操作。 当在运转中转移到汽缸停用运转模式时燃料供给过度供给状态或冷却水混合条件成立时,停止停止气缸停止运转模式,另一方面,当燃料气体过量供给状态或 在操作期间在不转移到气缸停止运转模式的状态下满足冷却水混合条件,禁止转移到汽缸停用运转模式。
    • 10. 发明专利
    • Gas engine and control method
    • 燃气发动机和控制方法
    • JP2008002271A
    • 2008-01-10
    • JP2006169655
    • 2006-06-20
    • Tokyo Gas Co Ltd東京瓦斯株式会社
    • MATSUI TORUMORIMOTO TOMOHITOSETO MINORU
    • F02M21/02F02B43/04F02D19/02F02D45/00
    • Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a gas engine and a control method capable of coping with a change, even if properties of fuel gas change, by measuring a calorific value of the fuel gas, without adding an excessive facility. SOLUTION: This gas engine has a fuel gas supply system Fm, an air supply system Im and a mixing means 3 arranged in a confluent place B of the fuel gas supply system and the air supply system and mixing the fuel gas and air. A calorific value measuring means 21 for measuring a calorific value of an air-fuel mixture of the fuel gas and the air, is arranged between the mixing means and an intake port 5 of the gas engine En. A control means 30 is arranged for adjusting a fuel gas supply quantity or a valve opening on the basis of a measuring result of the calorific value measuring means. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使通过测量燃料气体的发热量,即使燃料气体的性质发生变化,也能够提供能够应对变化的燃气发动机和控制方法,而不增加过量的设备。 解决方案:该燃气发动机具有燃料气体供给系统Fm,空气供给系统Im和配置在燃料气体供给系统和供气系统的汇合地点B中的混合装置3,并将燃料气体和空气 。 用于测量燃料气体和空气的空气燃料混合物的发热量的热量测量装置21设置在混合装置和燃气发动机En的进气口5之间。 控制装置30被设置为基于热量测量装置的测量结果来调节燃料气体供应量或阀门开度。 版权所有(C)2008,JPO&INPIT