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公开(公告)号：US11754010B2
公开(公告)日：2023-09-12
申请号：US17632409
申请日：2019-08-22
发明人： Mitsuhiro Izumi
CPC分类号： F02D41/1454 , F02D35/021 , F02D41/0027 , F02D41/1441 , F02D41/1461 , F02D2250/36
摘要： A fuel combustion apparatus 2 according to the present invention includes: a combustion cylinder 4; a fuel feed unit 6 that introduces a swirling flow of an air-fuel mixture into the combustion cylinder; an ignition unit 10 including an igniter 32 located in the combustion cylinder 4; an ion detection unit 12 including a detector 40 located in the combustion cylinder 4; and a control unit 14 that adjusts a mixing ratio of the fuel based on a detection result obtained by the ion detection unit 12. Preferably, the fuel is ammonia. Preferably, the detector 40 is located in the vicinity of the igniter 32.
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公开(公告)号：US20210126464A1
公开(公告)日：2021-04-29
申请号：US17078023
申请日：2020-10-22
发明人： Hirofumi KONISHI , Hideaki SOUMA
摘要： In a power conditioner, a DC-DC converter outputs an output of a first power source for which reverse power flow is permitted to a DC supply line, and a bidirectional DC-DC converter discharges an output of a second power source for which reverse power flow is not permitted to the DC supply line and, on the other hand, charges power of the DC supply line to the second power source. A DC-AC inverter converts DC power of the DC supply line to AC power and outputs the converted power to outside. When a power consumption of a load exceeds a rated output of the DC-AC inverter and a power generation amount of the first power source exceeds the rated output of the DC-AC inverter, a portion of surplus power of the first power source is charged to the second power source.
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公开(公告)号：US20210021141A1
公开(公告)日：2021-01-21
申请号：US16932740
申请日：2020-07-18
摘要： In a storage system including a plurality of battery units, the charge/discharge amounts of the battery units are determined by predetermined computation using the state of charge (SOC). The predetermined computation includes allocating a larger discharge amount to a battery unit higher in SOC, out of the battery units, in the discharge mode, and allocating a larger charge amount to a battery unit lower in SOC, out of the battery units, in the charge mode.
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公开(公告)号：US20210194270A1
公开(公告)日：2021-06-24
申请号：US16995535
申请日：2020-08-17
发明人： Hideaki SOUMA
IPC分类号： H02J7/34 , H02J3/38 , H02M3/158 , H02M7/5387 , H02J7/00
摘要： A storage battery unit connected to a power conditioner, the storage battery unit includes an enclosure, a storage battery for storing a direct current power, and a DC/DC converter for performing a charging-and-discharging of the storage battery. The enclosure has such a configuration that the enclosure does not include a DC/AC inverter for converting an output from the DC/DC converter to an alternate current power, and that the enclosure has the storage battery and the DC/DC converter.
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公开(公告)号：US20230392572A1
公开(公告)日：2023-12-07
申请号：US18175814
申请日：2023-02-28
发明人： Mitsuhiro IZUMI
IPC分类号： F02P5/15
CPC分类号： F02P5/1502
摘要： An ignition device is used in an internal combustion engine that uses a flame-retardant fuel. The ignition device includes a spark plug, a discharge circuit, and a control unit. The spark plug is placed in a cylinder of the internal combustion engine. The discharge circuit induces a high voltage in the spark plug, to thereby discharge the spark plug. The control unit controls a timing at which the spark plug is discharged by the discharge circuit. The control unit causes the discharge circuit to discharge the spark plug a plurality of times while a piston performs a reciprocating operation once in the cylinder. As a result, even when a flame-retardant fuel is used for the internal combustion engine, the ignition rate of the fuel can be enhanced.
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公开(公告)号：US11233403B2
公开(公告)日：2022-01-25
申请号：US17039162
申请日：2020-09-30
发明人： Hirofumi Konishi , Hideaki Souma
IPC分类号： H02J7/00 , H02J3/38 , H02M7/5387
摘要： The grid interconnection system is provided with a switching unit configured to switch a connection destination of an interconnection terminal of a first power conditioner and a load, between a power grid and a self-standing terminal of a second power conditioner, and a connection controller configured to execute, on the switching unit, first control for connecting the power grid to the interconnection terminal of the first power conditioner and the load in a non-power outage of the power grid, and second control for connecting the self-standing terminal of the second power conditioner to the interconnection terminal of the first power conditioner and the load in a power outage of the power grid.
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公开(公告)号：US20210167604A1
公开(公告)日：2021-06-03
申请号：US17039162
申请日：2020-09-30
发明人： Hirofumi KONISHI , Hideaki SOUMA
IPC分类号： H02J3/38 , H02M7/5387 , H02J7/00
摘要： The grid interconnection system is provided with a switching unit configured to switch a connection destination of an interconnection terminal of a first power conditioner and a load, between a power grid and a self-standing terminal of a second power conditioner, and a connection controller configured to execute, on the switching unit, first control for connecting the power grid to the interconnection terminal of the first power conditioner and the load in a non-power outage of the power grid, and second control for connecting the self-standing terminal of the second power conditioner to the interconnection terminal of the first power conditioner and the load in a power outage of the power grid.
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公开(公告)号：US12104790B2
公开(公告)日：2024-10-01
申请号：US17629608
申请日：2020-01-10
发明人： Mitsuhiro Izumi , Tsutomu Kusuhara
CPC分类号： F23N5/02 , F23K5/00 , F23N2239/04
摘要： An ammonia combustion method for combusting ammonia gas in a combustion chamber 4 includes steps of separating and producing hydrogen gas from ammonia gas, supplying the separated and produced hydrogen gas into the combustion chamber 4, combusting the hydrogen gas by performing an ignition discharge on the hydrogen gas supplied into the combustion chamber 4, and igniting the ammonia gas in the combustion chamber 4 from the combusted hydrogen gas.
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公开(公告)号：US20230417210A1
公开(公告)日：2023-12-28
申请号：US18175827
申请日：2023-02-28
发明人： Mitsuhiro IZUMI , Hiroyuki KIMURA
CPC分类号： F02P3/02 , F02P9/002 , F02M21/0215 , F02M21/0209
摘要： An internal combustion engine ignition device includes; a transformer including a primary coil and a secondary coil that are electromagnetically coupled; an energization control unit that controls energization of the primary coil; a first spark plug electrically connected between a high-voltage terminal of the secondary coil and ground; and a second spark plug electrically connected between a low-voltage terminal of the secondary coil and the ground. The first spark plug and the second spark plug are placed in one same combustion chamber of an internal combustion engine. Thus, discharge occurs in the two spark plugs, so that a fuel can be more certainly ignited. Further, residual energy of the first spark plug and residual energy of the second spark plug offset each other, which enables rapid convergence of residual energy.
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公开(公告)号：US20220243914A1
公开(公告)日：2022-08-04
申请号：US17629608
申请日：2020-01-10
发明人： Mitsuhiro IZUMI , Tsutomu KUSUHARA
摘要： An ammonia combustion method for combusting ammonia gas in a combustion chamber 4 includes steps of separating and producing hydrogen gas from ammonia gas, supplying the separated and produced hydrogen gas into the combustion chamber 4, combusting the hydrogen gas by performing an ignition discharge on the hydrogen gas supplied into the combustion chamber 4, and igniting the ammonia gas in the combustion chamber 4 from the combusted hydrogen gas.
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