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公开(公告)号：US20230417632A1
公开(公告)日：2023-12-28
申请号：US18339572
申请日：2023-06-22
Applicant: ESPEC CORP.
Inventor： Haruki SETO , Yuta Moriyama , Katsuhiko Watabe , Tetsuya Okadome , Masaki Yamamoto , Takumi USUI
CPC classification number: G01M99/002 , F25B7/00 , F25B2400/0409 , F25B2400/0411
Abstract: There is provided an environmental test apparatus that can create a predetermined environment inside a test chamber, the environmental test apparatus including: the test chamber for placing a test target object; a heating portion; and a cooling portion. The cooling portion has a refrigeration circuit having a compressor, a condenser, an expansion portion, and an evaporator and in which a phase-changing refrigerant is to be circulated. The refrigeration circuit has a first bypass flow path connecting a discharge side of the condenser and a suction side of the compressor and the first bypass flow path is provided with a first flow rate control portion. A temperature measurement portion for measuring a temperature of the compressor and a controller are provided. The controller is configured to control a substantial degree of opening of the first flow rate control portion according to a detection value of the temperature measurement portion.
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公开(公告)号：US20240068930A1
公开(公告)日：2024-02-29
申请号：US18457936
申请日：2023-08-29
Applicant: ESPEC CORP.
Inventor： Hiroyuki ENOKI , Haruki SETO , Hemant Subhas NINGARADDI
CPC classification number: G01N17/002 , G05D7/0635 , G05D23/19
Abstract: A snow environment test apparatus includes an injector including a two-fluid nozzle, a temperature setting section for setting an indoor temperature, an air conditioner for cooling an inside of a test chamber, a temperature control section for controlling the air conditioner, a water flow rate setting section for setting a flow rate of water to be supplied to the injector, a water supply section for supplying water having a predetermined temperature to the injector, a snow quality selection section for selecting snow quality, a related information storage section that stores information in which a temperature in the test chamber, a flow rate of water to be supplied to the injector, a pressure of air to be supplied to the injector, and a snow quality are related with each other, and a pressure regulation section for regulating the pressure of the air to be supplied to the injector to a pressure obtained by using the information stored in the related information storage section.
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公开(公告)号：US20240111073A1
公开(公告)日：2024-04-04
申请号：US18473869
申请日：2023-09-25
Applicant: ESPEC CORP.
Inventor： Hiroyuki ENOKI , Haruki SETO
IPC: G01W1/00
CPC classification number: G01W1/00
Abstract: In a snow accretion test method, a snow accumulation step of accumulating snow on a specimen, and a snow accretion step of freezing snow accumulated on the specimen in a state where snow is not supplied to the specimen are performed. The snow accumulation step and the snow accretion step are repeatedly performed. In the snow accretion step, the ambient temperature of the specimen is adjusted to a temperature lower than the ambient temperature in the snow accumulation step.
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公开(公告)号：US20240068729A1
公开(公告)日：2024-02-29
申请号：US18457911
申请日：2023-08-29
Applicant: ESPEC CORP.
Inventor： Hiroyuki ENOKI , Haruki SETO
Abstract: A snow environment test apparatus includes a first nozzle that injects water particles, a second nozzle that injects water particles smaller in size than the water particles from the first nozzle, an air conditioner that regulates a temperature in a test chamber to a set temperature, a state selection section that sets a state of snow to be caused to fall, and a flow rate regulation valve that regulates a ratio between quantities of water to be supplied to the first nozzle and to the second nozzle for obtaining the state of the snow set by the state selection section at the set temperature as a temperature at which a snow environment is obtained.
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