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公开(公告)号：US12139805B2
公开(公告)日：2024-11-12
申请号：US17368993
申请日：2021-07-07
Inventor： Osamu Sakai , Hidenobu Wakita , Atsuo Okaichi
IPC: C25B9/67 , C01B3/38 , C25B1/04 , H01M8/04007 , H01M8/0656
Abstract: A hydrogen system includes a compressor that includes an electrolyte membrane, an anode on a first primary surface of the electrolyte membrane, a cathode on a second primary surface of the electrolyte membrane, and a voltage applicator that applies a voltage between the anode and the cathode, the compressor producing compressed hydrogen by causing the voltage applicator to apply a voltage between the anode and the cathode to move hydrogen in hydrogen-containing-gas containing steam supplied to the anode to the cathode via the electrolyte membrane; a supply path through which the hydrogen-containing-gas containing steam to be supplied to the anode flows; a cooling mechanism disposed in the supply path; and a heat exchanger disposed in the supply path, the heat exchanger exchanging heat between the hydrogen-containing-gas flowing through the supply path upstream of the cooling mechanism and the hydrogen-containing-gas flowing through the supply path downstream of the cooling mechanism.
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公开(公告)号：US10385836B2
公开(公告)日：2019-08-20
申请号：US15181560
申请日：2016-06-14
Inventor： Atsuo Okaichi , Mio Furui
Abstract: A reciprocating compressor of the disclosure includes a cylinder, a piston, a space for compressing gas, a discharge port for discharging the compressed gas from the space, a discharge valve, and a supplying port for supplying liquid that is different in kind from the gas. The cylinder has an axis extending in a direction of gravity. The piston is disposed to be reciprocable along the axis inside the cylinder. The space is constituted above the piston by being surrounded by the piston and an inner peripheral surface of the cylinder. The inner peripheral surface of the cylinder includes a straight portion and a throttle portion. The throttle portion is constituted such that an inner diameter of the cylinder decreases toward the discharge valve.
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公开(公告)号：US09891003B2
公开(公告)日：2018-02-13
申请号：US14936174
申请日：2015-11-09
Inventor： Takumi Hikichi , Osao Kido , Atsuo Okaichi , Osamu Kosuda
CPC classification number: F28D7/0008 , F01K25/08 , F22B1/18 , F28F27/00 , Y02E20/14
Abstract: A CHP system includes a combustor as a heat source, a Rankine cycle apparatus, a second heat exchanger, and a thermal fluid flow path. The Rankine cycle apparatus includes, as an evaporator, a first heat exchanger that absorbs thermal energy from combustion gas (thermal fluid). The second heat exchanger absorbs thermal energy from the combustion gas and transfers the thermal energy to a heat medium. The first heat exchanger and the second heat exchanger are disposed in the thermal fluid flow path. The thermal fluid flow path includes a first flow path that allows the combustion gas to reach the first heat exchanger directly from the combustor and a second flow path that allows the combustion gas to reach the second heat exchanger directly from the combustor.
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公开(公告)号：US11515546B2
公开(公告)日：2022-11-29
申请号：US17028009
申请日：2020-09-22
Inventor： Kosuke Yamauchi , Takehito Goto , Tomoya Kamata , Yuichi Mikami , Tomohiro Kuroha , Atsuo Okaichi , Yoichiro Tsuji , Yuji Okuyama
IPC: H01M4/90 , H01M4/86 , H01M8/1213 , H01M8/0612 , H01M8/1226 , H01M8/1246 , H01M8/1253 , H01M8/12 , C01F11/00 , G01N27/407 , C01G25/00
Abstract: A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZr1-x1M1x1O3 (M1 represents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A° to less than 0.880 A°, and 0
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公开(公告)号：US10550486B2
公开(公告)日：2020-02-04
申请号：US15423586
申请日：2017-02-03
Inventor： Yuuichi Yakumaru , Atsuo Okaichi
IPC: C25B9/08 , C25B1/02 , F04B45/047 , B01D53/32 , H01M8/04 , H01M8/10 , H01M8/06 , H01M8/04119 , H01M8/1018 , H01M8/0662
Abstract: An electrochemical hydrogen pump includes: an electrolyte membrane; a cathode catalyst layer provided on one principal surface of the electrolyte membrane; an anode catalyst layer provided on the other principal surface of the electrolyte membrane; a pair of separators which include gas flow paths and which are provided so as to sandwich the cathode catalyst layer and the anode catalyst layer; and a voltage application portion applying a voltage between the cathode catalyst layer and the anode catalyst layer. In the electrochemical hydrogen pump, the one principal surface is disposed at an upper side in the gravity direction, and the cathode catalyst layer has a hydrophilic property.
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Patent Agency Ranking
公开(公告)号：US10364708B2
公开(公告)日：2019-07-30
申请号：US14732195
申请日：2015-06-05
Inventor： Takumi Hikichi , Osao Kido , Atsuo Okaichi , Masaya Honma , Masanobu Wada , Osamu Kosuda
Abstract: A Rankine cycle apparatus includes a pump, an evaporator, an expander, a condenser, and an internal heat exchanger. The internal heat exchanger allows heat exchange to take place between a working fluid discharged from the expander and a working fluid discharged from the pump. A temperature of the working fluid at an inlet of the expander is set so that a temperature of the working fluid at an outlet of the expander be higher than a saturation temperature on a high-pressure side of the cycle.
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公开(公告)号：US09638066B2
公开(公告)日：2017-05-02
申请号：US14792272
申请日：2015-07-06
Inventor： Masaya Honma , Atsuo Okaichi , Osao Kido , Takumi Hikichi , Masanobu Wada , Osamu Kosuda
CPC classification number: F01K17/02 , F01K7/16 , F01K15/00 , F22B1/1869 , F22B21/24 , F28D7/0075 , Y02E20/14
Abstract: A Rankine cycle apparatus includes a pump, an evaporator, an expander, and a condenser. The evaporator has a plurality of heat transfer tubes arranged in rows in a flow direction of a high-temperature fluid to be heat-exchanged with a working fluid. The heat transfer tube located in a most upstream row in the flow direction of the high-temperature fluid is defined as a most upstream heat transfer tube. For example, the most upstream heat transfer tube forms an inlet of the evaporator so that the working fluid flows into the evaporator through the inlet and first passes through the most upstream heat transfer tube.
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公开(公告)号：US20150107252A1
公开(公告)日：2015-04-23
申请号：US14395694
申请日：2014-01-08
Inventor： Atsuo Okaichi , Osao Kido , Takumi Hikichi , Osamu Kosuda , Masaya Honma , Masanobu Wada
Abstract: A Rankine cycle apparatus (1A) of the present disclosure includes a main circuit (10), a heat exchange portion (HX), a bypass flow path (20), a flow rate-adjusting mechanism (3), and a pair of temperature sensors (7A). The main circuit (10) is formed by an expander (11), a condenser (13), a pump (14), and an evaporator (15) that are circularly connected in this order. The heat exchange portion (HX) is located in the main circuit (10) at a position between an outlet of the expander (11) and an inlet of the pump (14). The bypass flow path (20) branches from the main circuit (10) at a position between an outlet of the evaporator (15) and an inlet of the expander (11), and joins to the main circuit (10) at a position between the outlet of the expander (11) and an inlet of the heat exchange portion (HX). The flow rate-adjusting mechanism (3) adjusts the flow rate of the working fluid in the bypass flow path (20). The pair of temperature sensors (7A) detects temperatures of the working fluid at two positions spaced from each other in a flow direction of the working fluid.
Abstract translation: 本公开的兰金循环装置（1A）包括主电路（10），热交换部（HX），旁通流路（20），流量调节机构（3），以及一对温度 传感器（7A）。 主回路（10）由依次循环连接的膨胀机（11），冷凝器（13），泵（14）和蒸发器（15）构成。 热交换部（HX）位于主回路（10）的膨胀机（11）的出口与泵（14）的入口之间的位置。 旁通流路20在蒸发器15的出口与膨胀机11的入口之间的位置处从主回路10分支，并在主回路10之间的位置连接。 膨胀机（11）的出口和热交换部分（HX）的入口。 流量调节机构（3）调节旁通流路（20）中的工作流体的流量。 一对温度传感器（7A）检测在工作流体的流动方向上彼此间隔的两个位置处的工作流体的温度。
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公开(公告)号：US09964000B2
公开(公告)日：2018-05-08
申请号：US14675874
申请日：2015-04-01
Inventor： Takumi Hikichi , Osao Kido , Atsuo Okaichi , Noriyoshi Nishiyama , Yoshio Tomigashi , Masaaki Konoto , Osamu Kosuda , Subaru Matsumoto , Tetsuya Matsuyama
Abstract: A combined heat and power system according the present disclosure includes a Rankine cycle apparatus including an evaporator that heats a working fluid by heat exchange between the working fluid and a heat source medium, an expansion machine that converts expansion power of the working fluid into rotational power, and a condenser that cools the working fluid by heat exchange between the working fluid and a heat medium, and a thermal circuit for using the heat medium heated by the condenser. An expansion volume ratio of the expansion machine is equal to or less than an expansion ratio in a theoretical Rankine cycle determined based on a state of a temperature and a pressure of the working fluid at a discharge port of the expansion machine and a state of a temperature and a pressure of the working fluid at a suction port of the expansion machine.
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公开(公告)号：US09869208B2
公开(公告)日：2018-01-16
申请号：US14730284
申请日：2015-06-04
Inventor： Osamu Kosuda , Atsuo Okaichi , Osao Kido , Takumi Hikichi , Takahiro Nakamura
IPC: F01K13/02 , F22B21/24 , F22B1/16 , F01K25/08 , F22B21/26 , F22B37/10 , F01K7/16 , F01K9/00 , F01K13/00 , F01K15/00 , F01K17/02
CPC classification number: F01K13/02 , F01K7/16 , F01K9/003 , F01K13/003 , F01K15/00 , F01K17/02 , F01K25/08 , F22B1/16 , F22B21/24 , F22B21/26 , F22B37/103 , Y02E20/14
Abstract: An evaporator which heats working fluid with high-temperature fluid to evaporate the working fluid includes: a working fluid channel which is arranged in a flow direction of the high temperature fluid and through which the working fluid flows; and a temperature sensor which is provided for the working fluid channel. A part of the working fluid channel is exposed to outside of a housing of the evaporator, and the temperature sensor is provided in the part of the working fluid channel exposed to the outside of the housing of the evaporator in a region other than an inlet of the working fluid channel into which the working fluid flows from the outside of the evaporator and other than an outlet of the working fluid channel through which the working fluid flows out of the evaporator. The output value of the temperature sensor is used to adjust the temperature of the working fluid in the evaporator.
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