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1. 发明授权

US09828947B2 Fuel gas supply method and supply unit for gas engine 有权
公开(公告)号：US09828947B2
公开(公告)日：2017-11-28
申请号：US13881210
申请日：2011-08-22
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02D41/30 , F02M21/02 , F02D19/06 , F02M21/04 , F02D19/02 , F02D41/00
CPC分类号： F02M21/0284 , F02D19/023 , F02D19/0642 , F02D19/0647 , F02D23/02 , F02D41/0007 , F02D41/0027 , F02D41/30 , F02D41/3094 , F02D41/345 , F02M21/0215 , F02M21/0218 , F02M21/023 , F02M21/0245 , F02M21/0248 , F02M21/04 , Y02T10/32 , Y02T10/44
摘要： In a gas engine provided with a gas supply pipe (35) branching into a supercharger-side gas supply pipe (33) and a cylinder-side gas supply pipe (37), a supercharger-side gas adjusting valve (43) and a cylinder-side gas adjusting valve (45) for controlling flow rates of passages, when the gas concentration of the fuel gas changes, the cylinder-side gas adjusting valve is controlled first to keep the output of the gas engine constant and then the supercharger-side gas adjusting valve is controlled to achieve the fuel gas flow rate Q1 based on the constant flow ratio by means of a gas supply controller (63), while maintaining the flow rate ratio Q1/Q2 at a constant value where Q1 is a fuel gas flow rate in the supercharger-side gas supply pipe and Q2 is a fuel gas flow rate in the cylinder-side gas supply pipe.

2. 发明授权

US09217398B2 Gas engine having intercooler 有权
标题翻译：燃气发动机具有中冷器
公开(公告)号：US09217398B2
公开(公告)日：2015-12-22
申请号：US13701190
申请日：2011-06-27
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02G3/00 , F02M31/20 , F02M33/04 , F02B29/04 , F02M21/02 , F02B37/00 , F02D19/02 , F02M21/04
CPC分类号： F02M31/20 , F02B29/0406 , F02B29/0468 , F02B37/00 , F02D19/027 , F02M21/0215 , F02M21/0284 , F02M21/047 , F02M33/04 , Y02T10/146 , Y02T10/32
摘要： In a gas engine 1 that uses a gas having a lower specific gravity than air and has a pre-mixing device before a turbocharger, a pre-mixed gas mixture compressed by a turbocharger 3 is cooled by an intercooler 4 located downstream of the turbocharger 3 in the intake system. Condensed water produced as the gas is cooled and the pre-mixed gas mixture discharged with the condensed water are separated into condensed water, air, and fuel gas in a vapor-liquid separator 7. The fuel gas is returned to the intake system upstream of the turbocharger 3, while the condensed water is discharged to atmosphere.
摘要翻译：在使用比空气比重低的气体并且在涡轮增压器之前具有预混合装置的燃气发动机1中，由涡轮增压器3压缩的预混合气体混合物被位于涡轮增压器3下游的中间冷却器4冷却在进气系统。作为气体产生的冷凝水被冷却，并且用冷凝水排出的预混合气体混合物在气 - 液分离器7中分离成冷凝水，空气和燃料气体。燃料气体返回到进气系统涡轮增压器3，同时冷凝的水被排放到大气中。

3. 发明申请

US20130067913A1 GAS ENGINE HAVING INTERCOOLER 有权
标题翻译：燃气发动机
公开(公告)号：US20130067913A1
公开(公告)日：2013-03-21
申请号：US13701190
申请日：2011-06-27
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02M31/20 , F02B37/00
CPC分类号： F02M31/20 , F02B29/0406 , F02B29/0468 , F02B37/00 , F02D19/027 , F02M21/0215 , F02M21/0284 , F02M21/047 , F02M33/04 , Y02T10/146 , Y02T10/32
摘要： In a gas engine 1 that uses a gas having a lower specific gravity than air and has a pre-mixing device before a turbocharger, a pre-mixed gas mixture compressed by a turbocharger 3 is cooled by an intercooler 4 located downstream of the turbocharger 3 in the intake system. Condensed water produced as the gas is cooled and the pre-mixed gas mixture discharged with the condensed water are separated into condensed water, air, and fuel gas in a vapor-liquid separator 7. The fuel gas is returned to the intake system upstream of the turbocharger 3, while the condensed water is discharged to atmosphere.
摘要翻译：在使用比空气比重低的气体并且在涡轮增压器之前具有预混合装置的燃气发动机1中，由涡轮增压器3压缩的预混合气体混合物被位于涡轮增压器3下游的中间冷却器4冷却在进气系统。作为气体产生的冷凝水被冷却，并且用冷凝水排出的预混合气体混合物在气 - 液分离器7中分离成冷凝水，空气和燃料气体。燃料气体返回到进气系统涡轮增压器3，同时冷凝的水被排放到大气中。

4. 发明授权

US09267425B2 Air supply device of gas engine 有权
标题翻译：燃气发动机供气装置
公开(公告)号：US09267425B2
公开(公告)日：2016-02-23
申请号：US13979021
申请日：2011-09-30
申请人： Hajime Suzuki , Yuuichi Shimizu , Hideki Nishio
发明人： Hajime Suzuki , Yuuichi Shimizu , Hideki Nishio
IPC分类号： F02B29/04 , F02B37/12 , F02D9/02 , F02M21/02 , F02M35/108 , F02D41/00 , F02B37/00 , F02B37/18
CPC分类号： F02B37/12 , F02B29/0406 , F02B37/00 , F02B37/18 , F02D9/02 , F02D19/02 , F02D41/0007 , F02D2200/0402 , F02D2200/0414 , F02D2200/0416 , F02D2200/703 , F02M21/0215 , F02M21/0227 , F02M31/13 , F02M35/108 , F02N19/04 , F02N19/06 , Y02T10/126 , Y02T10/144 , Y02T10/32
摘要： An air supply device of a gas engine having a turbocharger includes a first intake passage configured to guide the mixture of outdoor air and unpurified gas into the turbocharger, a second intake passage configured to guide indoor air into the turbocharger, a filter configured to remove a solid impurity in the unpurified gas which is disposed in the first intake passage, a first damper capable of opening and closing the first intake passage disposed on the downstream side of the filter in the first intake passage, a heating unit for heating the indoor air disposed in the second intake passage, a second damper capable of opening and closing the second intake passage disposed on the downstream side of the heating unit in the second intake passage, and a damper control device configured to control the opening degree of each of the first and second dampers.
摘要翻译：具有涡轮增压器的燃气发动机的供气装置包括：第一进气通道，其构造成将室外空气和未净化气体的混合物引导到涡轮增压器中;第二进气通道，其构造成将室内空气引导到涡轮增压器中;滤清器，设置在第一进气通道中的未纯化气体中的固体杂质，能够打开和关闭设置在第一进气通道中的过滤器的下游侧的第一进气通道的第一阻尼器，设置在室内空气中的室内空气的加热单元在第二进气通道中，具有能够打开和关闭设置在第二进气通道中的加热单元的下游侧的第二进气通道的第二阻尼器，以及阻尼控制装置，其构造成控制第一和第二个阻尼器

5. 发明授权

US09086022B2 Gas engine 有权
标题翻译：燃气发动机
公开(公告)号：US09086022B2
公开(公告)日：2015-07-21
申请号：US13695562
申请日：2011-05-18
申请人： Yuuichi Shimizu , Hajime Suzuki , Hideki Nishio
发明人： Yuuichi Shimizu , Hajime Suzuki , Hideki Nishio
IPC分类号： F02D23/00 , F02B33/44 , F02B43/00 , F02D29/06 , F02B19/10 , F02M21/02 , F02D19/02 , F02D19/10
CPC分类号： F02D29/06 , F02B19/1004 , F02D19/023 , F02D19/025 , F02D19/027 , F02D19/10 , F02M21/0215 , Y02T10/125 , Y02T10/32 , Y02T10/36
摘要： A gas engine includes a generator coupled to an output shaft thereof, an intake passage to which a low-concentration methane gas (VAM gas) derived from mine venting is supplied, and a gas mixing unit mixing a high-concentration methane gas (CMM gas) to the low-concentration methane gas midway along the intake passage, so that a gas mixture of the low-concentration methane gas and the high-concentration methane gas is supplied to and burnt in a combustion chamber. A turbocharger is provided in the intake passage upstream of the gas mixing unit, and in the intake passage upstream of the turbocharger, is provided a mixture ratio adjusting unit adjusting a mixture ratio of the low-concentration methane gas and the air. The temperature or flow rate of intake gas flowing into the turbocharger is kept in a constant range by an intake controller.
摘要翻译：燃气发动机包括联接到其输出轴的发电机，供给来自排气的低浓度甲烷气体（VAM气体）的进气通道和混合高浓度甲烷气体（CMM气体）到进气通道中间的低浓度甲烷气体，使得低浓度甲烷气体和高浓度甲烷气体的混合气体被供给到燃烧室中并燃烧。涡轮增压器设置在气体混合单元上游的进气通道中，并且在涡轮增压器上游的进气通道中设置有调节低浓度甲烷气体和空气的混合比的混合比调节单元。流入涡轮增压器的进气的温度或流量由进气控制器保持在一定范围。

6. 发明授权

US08485158B2 Method to control a gas engine system thereof 有权
标题翻译：控制其燃气发动机系统的方法
公开(公告)号：US08485158B2
公开(公告)日：2013-07-16
申请号：US12597755
申请日：2008-11-20
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02M69/04
CPC分类号： F02D19/027 , F02D19/023 , F02D23/00 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D2200/0612 , F02M21/0215 , F02M21/0284 , F02M21/047 , Y02T10/144 , Y02T10/32
摘要： A method to control a gas engine system is disclosed, whereby the engine can be operated with an air-fuel-ratio controlled with high precision, even in using a low calorific fuel-gas that is prone to vary in calorific value; the engine system includes: a first gas line toward each cylinder via a first gas valve from a gas supply source line, the first gas valve regulating flow rates of the fuel-gas through a gas compressor on the line; a second gas line toward suction air, the line being branched from the gas supply source line and the line being provided with a gas air mixer and a second gas valve on the line. In the case when the fuel-gas is of a low calorific value or where the output of the engine is high, a part of the fuel-gas is supplied to the engine through the first and second lines. The mixer forms a mixture of a prescribed mixing ratio that is leaner than a lower limit of flammability of the fuel-gas, while the remaining fuel-gas through the first line is supplied to the mixture just before each cylinder so that a final prescribed air fuel ratio is formed.In the case when the calorific value of the fuel-gas is high, or of high engine output, the whole fuel-gas can be supplied only through the first gas line.
摘要翻译：公开了一种控制燃气发动机系统的方法，即使在使用容易发生变化的低热量燃料气体的情况下，发动机也能以高精度的空燃比运转，发动机系统包括：第一气体管线，经由第一气体阀从气体供应源线路朝向每个气缸，第一气体阀调节燃料气体通过管线上的气体压缩机的流量; 朝向吸入空气的第二气体管线，其从气体供应源管线分支，并且管线在管线上设置有气体空气混合器和第二气体阀。在燃料气体的发热量低或者发动机输出高的情况下，一部分燃料气体通过第一和第二管路供给到发动机。混合器形成比燃料气体的燃烧性更低的规定混合比例的混合物，而通过第一管路的剩余燃料气体恰好在每个气缸之前供应到混合物，使得最终规定的空气形成燃料比。在燃料气体的发热量高或发动机输出高的情况下，只能通过第一气体管线供给整个燃料气体。

7. 发明申请

US20100126170A1 METHOD TO CONTROL A GAS ENGINE SYSTEM THEREOF 有权
标题翻译：控制其发动机系统的方法
公开(公告)号：US20100126170A1
公开(公告)日：2010-05-27
申请号：US12597755
申请日：2008-11-20
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02D23/00 , F02M21/04 , F02B43/00 , F02M21/02
CPC分类号： F02D19/027 , F02D19/023 , F02D23/00 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D2200/0612 , F02M21/0215 , F02M21/0284 , F02M21/047 , Y02T10/144 , Y02T10/32
摘要： A method to control a gas engine system is disclosed, whereby the engine can be operated with an air-fuel-ratio controlled with high precision, even in using a low calorific fuel-gas that is prone to vary in calorific value; the engine system includes: a first gas line toward each cylinder via a first gas valve from a gas supply source line, the first gas valve regulating flow rates of the fuel-gas through a gas compressor on the line; a second gas line toward suction air, the line being branched from the gas supply source line and the line being provided with a gas air mixer and a second gas valve on the line. In the case when the fuel-gas is of a low calorific value or where the output of the engine is high, a part of the fuel-gas is supplied to the engine through the first and second lines. The mixer forms a mixture of a prescribed mixing ratio that is leaner than a lower limit of flammability of the fuel-gas, while the remaining fuel-gas through the first line is supplied to the mixture just before each cylinder so that a final prescribed air fuel ratio is formed.In the case when the calorific value of the fuel-gas is high, or of high engine output, the whole fuel-gas can be supplied only through the first gas line.
摘要翻译：公开了一种控制燃气发动机系统的方法，即使在使用容易发生热值变化的低热量燃料气体的情况下，发动机也能以高精度的空燃比运转，发动机系统包括：第一气体管线，经由第一气体阀从气体供应源线路朝向每个气缸，第一气体阀调节燃料气体通过管线上的气体压缩机的流量; 朝向吸入空气的第二气体管线，其从气体供应源管线分支，并且管线在管线上设置有气体空气混合器和第二气体阀。在燃料气体的发热量低或者发动机输出高的情况下，一部分燃料气体通过第一和第二管路供给到发动机。混合器形成比燃料气体的燃烧性更低的规定混合比例的混合物，而通过第一管路的剩余燃料气体恰好在每个气缸之前供应到混合物，使得最终规定的空气形成燃料比。在燃料气体的发热量高或发动机输出高的情况下，只能通过第一气体管线供给整个燃料气体。

8. 发明申请

US20130220278A1 FUEL GAS SUPPLY METHOD AND SUPPLY UNIT FOR GAS ENGINE 有权
标题翻译：燃气发动机燃料供应方式及供应单位
公开(公告)号：US20130220278A1
公开(公告)日：2013-08-29
申请号：US13881210
申请日：2011-08-22
申请人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
发明人： Hideki Nishio , Hajime Suzuki , Yuuichi Shimizu
IPC分类号： F02D41/30
CPC分类号： F02M21/0284 , F02D19/023 , F02D19/0642 , F02D19/0647 , F02D23/02 , F02D41/0007 , F02D41/0027 , F02D41/30 , F02D41/3094 , F02D41/345 , F02M21/0215 , F02M21/0218 , F02M21/023 , F02M21/0245 , F02M21/0248 , F02M21/04 , Y02T10/32 , Y02T10/44
摘要： In an gas engine provided with a gas supply pipe 35 branching into a supercharger-side gas supply pipe 33 and a cylinder-side gas supply pipe 37, a supercharger-side gas adjusting valve 43 and a cylinder-side gas adjusting valve 45 for controlling flow rates of passages, when gas concentration of the fuel gas changes, the cylinder-side gas adjusting valve 45 is controlled first to keep the output of the gas engine constant and then the supercharger-side gas adjusting valve 43 is controlled to achieve the fuel gas flow rate Q1 based on the constant flow ratio by means of a gas supply controller 63, while maintaining the flow rate ratio Q1/Q2 at a constant value where Q1 is a fuel gas flow rate in the supercharger-side gas supply pipe 33 and Q2 is a fuel gas flow rate in the cylinder-side gas supply pipe 37
摘要翻译：在具有分流到增压器侧气体供给管33和气缸侧气体供给管37的气体供给管35的气体发动机中，增压侧气体调节阀43和气缸侧气体调节阀45 当燃料气体的气体浓度变化时，首先控制气缸侧气体调节阀45以保持气体发动机的输出恒定，然后控制增压器侧气体调节阀43以实现燃料通过气体供给控制器63，基于恒定流量比的气体流量Q1，同时将流量比Q1 / Q2保持在恒定值，其中Q1是增压器侧气体供给管33中的燃料气体流量， Q2是气缸侧气体供给管37的燃料气体流量

9. 发明授权

US08347861B2 Method to control a gas engine and a gas engine system thereof 有权
标题翻译：控制燃气发动机及其燃气发动机系统的方法
公开(公告)号：US08347861B2
公开(公告)日：2013-01-08
申请号：US12450920
申请日：2008-11-20
申请人： Yuuichi Shimizu , Hideki Nishio , Hajime Suzuki
发明人： Yuuichi Shimizu , Hideki Nishio , Hajime Suzuki
IPC分类号： F02D41/00 , F02M37/00 , F02M61/00
CPC分类号： F02M25/0809 , F02B37/18 , F02D19/023 , F02D23/00 , F02D41/0027 , F02M21/0284 , Y02T10/144 , Y02T10/32
摘要： In a gas engine system, air fed through a turbocharger is mixed with fuel gas flowing through a fuel gas supply line and supply into a combustion chamber is controlled. In case that the fuel gas has a low calorie or the engine output power is high, a portion of the fuel gas is diverged from the fuel gas supply line, and the flow rate thereof is set to a constant rate less than that of the diverged side fuel gas. The diverging fuel gas is fed into the combustion chamber through a divergence control valve while the remainder of the fuel gas is fed into the fuel flow control valve. In case that the fuel gas has a high calorie or the engine output power is low, the divergence control valve is closed so as to feed the fuel gas only into the gas supply main pipe.
摘要翻译：在燃气发动机系统中，通过涡轮增压器供给的空气与流过燃料气体供应管线的燃料气体混合，并且供应到燃烧室被控制。在燃料气体具有低卡路里或发动机输出功率高的情况下，燃料气体的一部分从燃料气体供给管线分叉，并且其流量被设定为比分流的燃料气体的流量的恒定速率侧燃气。发散的燃料气体通过发散控制阀进入燃烧室，而剩余的燃料气体被供给到燃料流量控制阀中。在燃料气体具有高卡路里或发动机输出功率低的情况下，发散控制阀关闭，以将燃料气体仅供给到供气主管中。

10. 发明授权

US08215284B2 Micro-pilot injection ignition type gas engine 有权
标题翻译：微型点火式点火式燃气发动机
公开(公告)号：US08215284B2
公开(公告)日：2012-07-10
申请号：US12450452
申请日：2008-11-20
申请人： Hajime Suzuki , Hideki Nishio , Yuuichi Shimizu
发明人： Hajime Suzuki , Hideki Nishio , Yuuichi Shimizu
IPC分类号： F02B19/00 , F02M7/00 , F02M69/04 , F01L1/34
CPC分类号： F02D41/06 , F02B77/08 , F02B77/085 , F02D19/061 , F02D19/0623 , F02D19/0631 , F02D19/10 , F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/0087 , F02D41/1454 , F02D41/1475 , F02D41/3047 , Y02T10/36
摘要： What is disclosed is a micro-pilot injection ignition type gas engine, whereby an air fuel ratio control in starting the engine is executed with enhanced precision, by means of introducing skip-firing intermittent operations which reflect the engine operation conditions, while an idling time span can be shortened or omitted.The engine includes: a gas valve that opens and closes a fuel-gas passage in front of each cylinder, so as to arbitrarily control the throat area as well as the opening-closing time span of the gas valve; an engine speed detecting unit to detect the engine speed; a combustion diagnosis unit to detect an engine combustion state through a cylinder pressure distribution along elapsed time, as to each cylinder; an opening-closing control unit as to the gas valve, so as to control the intermittent opening-closing of the gas valve according to the levels of the detected engine speed as well as the cylinder pressure distribution; whereby, in starting the engine, the intermittent opening-closing of the gas-valve enables at least one skip-firing mode that brings an enhanced fuel-supply pressure-pulsation with which a relatively large amount of fuel-gas is supplied per engine cycle with firing so that the air fuel-gas ratio of each cylinder reaches a prescribed target value.
摘要翻译：公开的是一种微型引燃式点火式燃气发动机，其中，通过引入反映发动机运转状况的跳动间歇运转，同时空转时间，以更高的精度执行起动发动机的空燃比控制跨度可以缩短或省略。发动机包括：燃气阀，其在每个气缸前面打开和关闭燃料气体通道，以便任意地控制喉部区域以及气阀的打开 - 关闭时间跨度; 发动机转速检测单元，用于检测发动机转速; 燃烧诊断单元，用于通过沿着每个气缸的经过时间的气缸压力分布来检测发动机燃烧状态; 关于气阀的开闭控制单元，以根据检测到的发动机转速的水平以及气缸压力分布来控制气阀的间歇开闭; 由此，在启动发动机时，气阀的间歇开闭使得能够进行至少一个跳跃燃烧模式，其提供燃料供应压力脉动，其中每个发动机循环提供相对大量的燃料气体进行点火，使得各气缸的空气燃料气体比达到规定的目标值。

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