Patents Assigned to SHINWA CONTROLS CO., LTD.
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Publication number: 20240060688Abstract: A fluid temperature control system according to an embodiment cools a fluid by means of a multiple refrigeration apparatus including a high-temperature-side refrigerator, a medium-temperature-side refrigerator and a low-temperature-side refrigerator. The medium-temperature-side refrigerator in the multiple refrigeration apparatus has a medium-temperature-side first evaporator and a medium-temperature-side second evaporator. A high-temperature-side evaporator of the high-temperature-side refrigerator and a medium-temperature-side condenser of the medium-temperature-side refrigerator constitute a first cascade condenser. The medium-temperature-side second evaporator of the medium-temperature-side refrigerator and a low-temperature-side condenser of the low-temperature-side refrigerator constitute a second cascade condenser. The medium-temperature-side refrigerant and the low-temperature-side refrigerant are the same refrigerant.Type: ApplicationFiled: January 26, 2021Publication date: February 22, 2024Applicant: SHINWA CONTROLS CO., LTDInventors: Masakatsu YAMAWAKI, Teiichirou UEDA
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Publication number: 20240003441Abstract: Provided are a three-way valve for flow rate control and a temperature control device, which have improved sealing performance at a sealed portion at which a valve body is rotatably sealed against a fluid having a low temperature of about ?85° C. as compared to a case without sealing means for sealing an end portion of the valve body on a side closer to drive means so that the end portion is rotatable with respect to a valve main body, the sealing means having a substantially U-shaped cross section and being made of a synthetic resin, and being urged in an opening direction by a spring member made of a metal.Type: ApplicationFiled: November 30, 2021Publication date: January 4, 2024Applicant: SHINWA CONTROLS CO., LTD.Inventor: Ryoji ICHIYAMA
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Publication number: 20240003442Abstract: Provided are a three-way valve for flow rate control and a temperature control device, in which operation malfunction of drive means due to a fluid having a low temperature of about ?85° C. is suppressed as compared to a case in which driving force transmission means and joining means do not form a heat-transfer suppressing portion that is made of a material having a thermal conductivity smaller than a thermal conductivity of a material of a valve main body and a valve body and suppresses transfer of heat to the drive means. The driving force transmission means and the joining means are made of a material such as zirconia, which has a thermal conductivity smaller than a thermal conductivity of the valve main body and the valve body, and form a heat-transfer suppressing portion that suppresses transfer of heat to the drive means.Type: ApplicationFiled: November 30, 2021Publication date: January 4, 2024Applicant: SHINWA CONTROLS CO., LTD.Inventor: Ryoji ICHIYAMA
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Publication number: 20230417331Abstract: Provided are a three-way valve for flow rate control and a temperature control device, which have improved sealing performance against a fluid having a low temperature of about ?85° C. as compared to a case in which a pressure applying portion does not include a communication member having a cylindrical shape with both end portions in a longitudinal direction sealed by sealing means including a coating member, which has a substantially U-shaped cross section and is made of a synthetic resin, and is urged in an opening direction by a spring member made of a metal.Type: ApplicationFiled: November 30, 2021Publication date: December 28, 2023Applicant: SHINWA CONTROLS CO., LTD.Inventors: Koji MATSUDA, Ryoji ICHIYAMA, Shigehiko ONO
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Publication number: 20230376054Abstract: A temperature-controlled fluid circulation apparatus includes a flow path through which a fluid controlled by a temperature control unit is circulated via a fluid supply target; a three-way valve in the flow path downstream of the fluid supply target and upstream of a temperature control position by the temperature control unit, a part between two out of three ports constituting a part of the flow path; and a bypass flow path branching from the flow path downstream of the temperature control position by the temperature control unit and upstream of the fluid supply target, to be connected to one remaining port out of the three ports of the three-way valve. A pressure of the fluid flowing through the flow path at a position that is downstream of the fluid supply target and upstream of the three-way valve is detected by a pressure sensor.Type: ApplicationFiled: October 22, 2021Publication date: November 23, 2023Applicant: SHINWA CONTROLS CO., LTDInventors: Masakatsu YAMAWAKI, Teiichirou UEDA, Katsutoshi SAKAI, Shuya MATSUBAYASHI
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Publication number: 20230333575Abstract: A flowrate control device includes: a storing unit that stores opening degree characteristic of a flowrate regulating valve; an inputting unit that inputs a target flowrate of the fluid flowing out from the flowrate regulating valve, and a flowrate change velocity to reach the target flowrate; a detecting unit that detects, from when the control of the flowrate to the target flowrate is started, the flowrate of the fluid flowing out from the flowrate regulating valve at a predetermined cycle; and an opening-degree regulating unit that regulates an opening degree of the flowrate regulating valve. The opening-degree regulating unit determines a difference between a detected flowrate detected by the detecting unit and a planned flowrate in the course of achieving the target flowrate, the planned flowrate corresponding to the detected flowrate and being defined by the flowrate change velocity and the number of detection executed by the detecting unit.Type: ApplicationFiled: August 6, 2021Publication date: October 19, 2023Applicant: SHINWA CONTROLS CO., LTD.Inventors: Katsutoshi SAKAI, Yuki FUKUZAWA
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Publication number: 20230221736Abstract: A flow rate control device includes a flowmeter that detects a flow rate of a fluid discharged from a fluid machine driven by a motor, and a controller that changes a frequency of a drive input voltage for driving the motor. The controller stores a tuning frequency table recording relationships between a plurality of difference ranges each of which defines a range to which an absolute value of a difference between the flow rate of the fluid and the target flow rate belongs by a lower limit value and an upper limit value of the range, and a plurality of tuning frequencies defined correspondingly to the respective difference ranges. The controller decides, based on a difference between the flow rate of the fluid and the target flow rate and the tuning frequency table, the tuning frequency corresponding to the difference between the converted flow rate and the target flow rate.Type: ApplicationFiled: June 16, 2021Publication date: July 13, 2023Applicant: SHINWA CONTROLS CO., LTDInventor: Toru IKEGAMI
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Publication number: 20230219335Abstract: A laminating system according to one embodiment includes: a film sticking-and-cutting device that sticks a film fed from a roll to a workpiece, and cuts the film at a position where the film is not overlapped with the workpiece; and a laminator that receives the workpiece delivered from the film sticking-and-cutting device, and presses the film stuck to the workpiece to the workpiece to join the film to the workpiece. The film sticking-and-cutting device includes a cooling unit that cools the workpiece or the film, before the film is cut. The laminating system may further includes a cooling device that cools the film by supplying air to the film on the workpiece delivered from the laminator, and a film peeling device that peels a layer from the film on the workpiece.Type: ApplicationFiled: June 8, 2022Publication date: July 13, 2023Applicant: SHINWA CONTROLS CO., LTDInventors: Michio TAKAYAMA, Ayumi MORIMUNE, Yousuke IKEDA
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Publication number: 20230221735Abstract: A flow rate control device according to one embodiment includes: a flowmeter that repeatedly generates a pulse signal based on flow of a fluid discharged from a fluid machine driven by a brushless motor or AC motor, such that a pulse width of the pulse signal is inversely proportional to a flow rate of the fluid; an FV converter that makes frequency-voltage conversion of the pulse signal and generates a voltage value corresponding to the pulse signal; and a controller that changes a frequency of a drive input voltage for driving the brushless motor or AC motor based on a difference between a converted flow rate of the fluid converted based on the voltage value generated by the FV converter and a preset target flow rate.Type: ApplicationFiled: June 16, 2021Publication date: July 13, 2023Applicant: SHINWA CONTROLS CO., LTDInventor: Toru IKEGAMI
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Patent number: 11605549Abstract: An air conditioner includes a blower unit to blow air at a predetermined amount, a cooling unit arranged downstream of the blower unit in an air flowing direction, a compressor which is operated at a variable operating frequency so that a revolving speed thereof is adjustable, a condenser, and a cooling coil connected in this order by pipes to circulate a heating medium to cool blown air with a heating unit arranged on a downstream side of the cooling unit in the air flowing direction in which the blown air is heated by a heater, and a control unit controls the operating frequency of the compressor and includes a compressor control part which adjusts the revolving speed of the compressor such that the operating frequency of the compressor is decreased by a predetermined frequency when an output of the heating unit exceeds a first threshold value.Type: GrantFiled: September 25, 2019Date of Patent: March 14, 2023Assignee: Shinwa Controls Co., Ltd.Inventors: Shunji Yamaguchi, Takuya Ishimatsu, Humiyuki Hosoi
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Patent number: 11566820Abstract: A fluid temperature control system cools a fluid by means of a multiple refrigeration apparatus including a high-temperature-side refrigerator (100), a medium-temperature-side refrigerator (200) and a low-temperature-side refrigerator (300). The medium-temperature-side refrigerator (200) in the multiple refrigeration apparatus has a medium-temperature-side first evaporator (204) and a medium-temperature-side second evaporator (224). A high-temperature-side evaporator (104) of the high-temperature-side refrigerator (100) and a medium-temperature-side condenser (202) of the medium-temperature-side refrigerator (200) constitute a first cascade condenser (CC1). The medium-temperature-side second evaporator (224) of the medium-temperature-side refrigerator (200) and a low-temperature-side condenser (302) of the low-temperature-side refrigerator (300) constitute a second cascade condenser (CC2). The medium-temperature-side refrigerant and the low-temperature-side refrigerant are the same refrigerant.Type: GrantFiled: January 25, 2021Date of Patent: January 31, 2023Assignee: Shinwa Controls Co., Ltd.Inventors: Masakatsu Yamawaki, Teiichirou Ueda
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Patent number: 11555619Abstract: An air conditioner according to the present invention includes: an air flow path through which air flows; a temperature control unit that controls a temperature of air in the air flow path; a humidifier capable of supplying vapor to the air flow path; a blower that has a suction port connected to a downstream opening of the air flow path, and a discharge port from which air sucked from the suction port is discharged; a chamber that has a communication port connected to the discharge port, and a plurality of duct connection ports configured to be connectable to ducts so as to let out air coming from the discharge port through the ducts; and a baffle plate part 8 disposed in the chamber, the baffle plate part overlapping at least partly with the discharge port when seen along a flow direction of air passing through the discharge port.Type: GrantFiled: February 5, 2018Date of Patent: January 17, 2023Assignee: Shinwa Controls Co., Ltd.Inventors: Hideaki Furumoto, Kazushige Takahira
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Publication number: 20220395939Abstract: The diaphragm boss is fixed such that the shaft part and the enlarged-diameter part are exposed upwardly. The diaphragm member is held with an air suction force by a robot arm apparatus having an air suction part such that the small-diameter concave part and the large-diameter concave part are exposed downwardly. By controlling the robot arm apparatus, the diaphragm member is brought into contact with the diaphragm boss while tilting an axis of the diaphragm member with respect to an axis of the diaphragm boss. By controlling the robot arm apparatus, the small-diameter concave part and/or the large-diameter concave part of the diaphragm member are pressed against the diaphragm boss while rotating the diaphragm member around the axis of he diaphragm boss, so that the enlarged-diameter part is fitted into the large-diameter concave part and the shaft part is fitted into the small-diameter concave part.Type: ApplicationFiled: December 16, 2020Publication date: December 15, 2022Applicant: SHINWA CONTROLS CO., LTDInventor: Hirotaka IKEGAMI
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Publication number: 20220381485Abstract: A hydrogen cooling apparatus according to an embodiment includes: a binary refrigeration unit including a high-temperature-side refrigerator and a low-temperature-side refrigerator; and a hydrogen-cooling-fluid circulation unit. The binary refrigeration unit cools a hydrogen cooling fluid circulated by the hydrogen-cooling-fluid circulation unit by means of a low-temperature-side evaporator of the low-temperature-side refrigerator.Type: ApplicationFiled: October 6, 2020Publication date: December 1, 2022Applicant: SHINWA CONTROLS CO., LTDInventors: Minoru UCHIDA, Ryo MORIYA, Hitoya MITSUDUKA, Shigeo AOKI, Toshiki HIGUMA
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Patent number: 11480258Abstract: Provided is a flow rate control valve capable of suppressing leakage of a fluid when the flow rate control valve completely closes a valve port as compared to a flow rate control valve that does not include a gap reducing portion being provided so as to partially reduce a gap between a valve body and a member opposed to the valve body, and a temperature control device using the flow rate control valve.Type: GrantFiled: April 17, 2018Date of Patent: October 25, 2022Assignee: SHINWA CONTROLS CO., LTD.Inventors: Shigehiko Ono, Katsumichi Hiraoka
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Publication number: 20220307749Abstract: A temperature control system according to one embodiment includes: a refrigeration apparatus in which a compressor, a condenser, an expansion valve and an evaporator are connected in this order for circulating a refrigerant; a fluid circulation apparatus that causes a fluid to be heat-exchanged in the evaporator, then sends the fluid to a temperature control object, and again causes the fluid having passed through the temperature control object to be heat-exchanged in the evaporator, the fluid circulation apparatus having a heater at a position downstream of the temperature control object and upstream of the evaporator; and a control apparatus.Type: ApplicationFiled: August 6, 2021Publication date: September 29, 2022Applicant: SHINWA CONTROLS CO., LTDInventors: Masakatsu YAMAWAKI, Isamu SASAKI, Katsutoshi SAKAI, Keisuke SATO
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Patent number: 11402135Abstract: In a first fluid circulation device, a heat exchanger, a tank that stores a first fluid liquefied by the heat exchanger, a first fluid pump that pumps the first fluid stored in the tank, a heater that heats the first fluid pumped from the first fluid pump, and a first fluid supply unit to which the first fluid is supplied from the heater are connected by a first pipe. A second fluid circulation device includes a cooler that cools a second fluid, causes the second fluid having been cooled by the cooler to circulate through a second pipe, and returns the second fluid to the cooler. The second pipe is connected to the heat exchanger and is connected to the tank and the first fluid pump, and the second fluid cools the first fluid in the heat exchanger, the tank, and the first fluid pump.Type: GrantFiled: August 29, 2018Date of Patent: August 2, 2022Assignee: Shinwa Controls Co., LtdInventors: Teiichirou Ueda, Yasuhiro Naohara
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Patent number: 11391497Abstract: A refrigeration apparatus includes first and second refrigeration circuits, and a supercooling circuit. The supercooling circuit includes a supercooling bypass flow path which communicates a part of the first refrigeration circuit positioned on the downstream side of the condenser and on the upstream side of the first expansion valve, to a compressor on the first refrigeration circuit; a supercooling control valve; and a supercooling heat exchanger disposed on the downstream side of the supercooling control valve in the supercooling bypass flow path. The supercooling heat exchanger is configured to cool the refrigerant flowing through a part of the first refrigeration circuit, on the downstream side of a connection position to the supercooling bypass flow path. The second refrigeration circuit includes: a branch flow path which branches from a part of the first refrigeration circuit, on the upstream side of the connection position to the supercooling bypass flow path.Type: GrantFiled: May 11, 2018Date of Patent: July 19, 2022Assignee: Shinwa Controls Co., LtdInventors: Takuya Saho, Satoru Kuwahata, Hitoya Mitsuduka
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Patent number: 11391382Abstract: A diaphragm having an outer surface of a bottom wall that closes a cylindrical circumferential wall constituting a main valve disc part forms a contact surface to be in contact with a valve seat. An annular groove is formed in an inner circumferential portion of a membrane part protruding from the circumferential wall. The groove is concaved to the other axial side from the one axial side, and a sectional shape of the groove is arcuate. A surface of the inner circumferential portion and a surface of the outer circumferential portion in the membrane part are coplanar, the surfaces facing the other axial side. An axial thickness of the outer circumferential portion is ?-? an axial thickness of the main valve disc part, and a minimum axial thickness of the inner circumferential portion is ¼-? the axial thickness of the outer circumferential portion.Type: GrantFiled: August 29, 2018Date of Patent: July 19, 2022Assignee: Shinwa Controls Co., LtdInventor: Hidemitsu Ooka
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Patent number: 11378303Abstract: The present invention provides a humidifier capable of preventing water generated by dew condensation of vapor from being combined with air, so that an air humidity can be stably controlled. A humidifier according to the present invention includes a storage tank that stores water, the storage tank being opened upward, a heater that heats the water in the storage tank, and a guide plate that is disposed above the storage tank, on at least one of one side and the other side in a first direction extending along a horizontal direction with respect to a center of the storage tank. The guide plate extends in an inclined manner such that an upper part thereof is positioned closer to the center of the storage tank in the first direction than a lower part thereof.Type: GrantFiled: November 8, 2017Date of Patent: July 5, 2022Assignee: Shinwa Controls Co., LtdInventors: Isamu Sasaki, Kazushige Takahira