Invention Grant
US08479526B2 Refrigerant charging method for refrigeration device having carbon dioxide as refrigerant
有权
具有二氧化碳作为制冷剂的制冷装置的制冷剂填充方法
- Patent Title: Refrigerant charging method for refrigeration device having carbon dioxide as refrigerant
- Patent Title (中): 具有二氧化碳作为制冷剂的制冷装置的制冷剂填充方法
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Application No.: US12374166Application Date: 2007-07-18
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Publication No.: US08479526B2Publication Date: 2013-07-09
- Inventor: Hiromune Matsuoka , Toshiyuki Kurihara
- Applicant: Hiromune Matsuoka , Toshiyuki Kurihara
- Applicant Address: JP Osaka
- Assignee: Daikin Industries, Ltd.
- Current Assignee: Daikin Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors
- Priority: JP2006-199707 20060721
- International Application: PCT/JP2007/064187 WO 20070718
- International Announcement: WO2008/010519 WO 20080124
- Main IPC: F25B45/00
- IPC: F25B45/00
Abstract:
A refrigerant charging method for an air conditioning device in which carbon dioxide is used as a refrigerant includes a connecting step and a refrigerant charging step. In the connecting step, a cylinder containing the refrigerant is connected to a space in the air conditioning device intended to be charged by the refrigerant. A heater is interposed between the cylinder and the air conditioning device. In the refrigerant charging step, the refrigerant is moved to the intended charging space from the cylinder, via the heater. In the refrigerant charging step, further, the refrigerant that has exited the cylinder is heated by the heater so that a specific enthalpy of the refrigerant when it enters the intended charging space will be 430 kJ/kg or higher.
Public/Granted literature
- US20100000237A1 REFRIGERANT CHARGING METHOD FOR REFRIGERATION DEVICE HAVING CARBON DIOXIDE AS REFRIGERANT Public/Granted day:2010-01-07
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