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    • 4. 发明公开
    • REFRIGERATION-TYPE CHILLER
    • EP4307073A1
    • 2024-01-17
    • EP22791466.0
    • 2022-03-24
    • SMC Corporation
    • ADACHI Makoto
    • G05D23/00G05D23/19F25B1/00
    • [Object] To provide a refrigeration-type chiller suited to gradually changing the temperature of a load to a target temperature over a given period of time.
      [Solution] The chiller includes a coolant circuit 3 that supplies a coolant to a load 2, a refrigeration circuit 4 that adjusts the temperature of the coolant, and a control unit 6 that controls the chiller as a whole. The control unit 6 includes a temperature setting unit 33 that sets, as an adjustment target temperature, the temperature of the coolant for causing the load 2 to be at a target temperature, a time setting unit 34 that sets an adjustment time during which to change the temperature of the coolant to the adjustment target temperature, an arithmetic unit 35 that calculates a gradient of temperature change as a target temperature gradient from the adjustment target temperature and the adjustment time, and a temperature control unit 36 that adjusts the opening degrees of first and second electronic expansion valves 24 and 28 so that the temperature of the coolant changes in accordance with the target temperature gradient.
    • 7. 发明公开
    • EJECTOR AND VACUUM GENERATING DEVICE INCLUDING THE SAME
    • EP4105495A3
    • 2023-01-25
    • EP22177127.2
    • 2022-06-03
    • SMC Corporation
    • MATSUMURA, Kenichi
    • F04F5/16F04F5/18F04F5/14F04F5/20F04F5/46F04F5/52
    • [Object] To provide an ejector and a vacuum generating device that are capable of reducing an installation space for a switching valve, the ejector, and a pipe and reducing the time and effort for an assembly work.
      [Solution] An ejector 20 includes an ejector body 21 having an internal passage 27 and a negative-pressure generating mechanism 22 including a nozzle unit 23 that ejects compressed air and a diffuser unit 24 that generates a negative pressure by using compressed air ejected by the nozzle unit 23. The ejector body has a first attachment surface 20a to which a valve body 41 of a switching valve 40 is fixedly attached and a second attachment surface 20b to which a base body 18 of the manifold base 10 is fixedly attached. The first attachment surface has a first inflow port 28a for supplying compressed air to the negative-pressure generating mechanism by being connected to a first output port A of the switching valve, and this port communicates with the nozzle unit through a supply passage 28. The second attachment surface has a negative-pressure supply port 29c for outputting a negative pressure to the outside by being connected to a negative-pressure inflow port of the manifold base, and this port communicates with the diffuser unit through a negative-pressure communication passage 29.
    • 8. 发明公开
    • EJECTOR AND VACUUM GENERATING DEVICE INCLUDING THE SAME
    • EP4105495A2
    • 2022-12-21
    • EP22177127.2
    • 2022-06-03
    • SMC Corporation
    • MATSUMURA, Kenichi
    • F04F5/16F04F5/18
    • [Object] To provide an ejector and a vacuum generating device that are capable of reducing an installation space for a switching valve, the ejector, and a pipe and reducing the time and effort for an assembly work.
      [Solution] An ejector 20 includes an ejector body 21 having an internal passage 27 and a negative-pressure generating mechanism 22 including a nozzle unit 23 that ejects compressed air and a diffuser unit 24 that generates a negative pressure by using compressed air ejected by the nozzle unit 23. The ejector body has a first attachment surface 20a to which a valve body 41 of a switching valve 40 is fixedly attached and a second attachment surface 20b to which a base body 18 of the manifold base 10 is fixedly attached. The first attachment surface has a first inflow port 28a for supplying compressed air to the negative-pressure generating mechanism by being connected to a first output port A of the switching valve, and this port communicates with the nozzle unit through a supply passage 28. The second attachment surface has a negative-pressure supply port 29c for outputting a negative pressure to the outside by being connected to a negative-pressure inflow port of the manifold base, and this port communicates with the diffuser unit through a negative-pressure communication passage 29.