- 专利标题: Renewal method of air-conditioning unit for vehicle and air-conditioning unit for vehicle
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申请号: US13813176申请日: 2010-09-10
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公开(公告)号: US09890978B2公开(公告)日: 2018-02-13
- 发明人: Masatoshi Urakawa , Shiro Takatani
- 申请人: Masatoshi Urakawa , Shiro Takatani
- 申请人地址: JP Chiyoda-Ku, Tokyo
- 专利权人: MITSUBISHI ELECTRIC CORPORATION
- 当前专利权人: MITSUBISHI ELECTRIC CORPORATION
- 当前专利权人地址: JP Chiyoda-Ku, Tokyo
- 代理机构: Buchanan Ingersoll & Rooney PC
- 国际申请: PCT/JP2010/005557 WO 20100910
- 国际公布: WO2012/032587 WO 20120315
- 主分类号: F25B45/00
- IPC分类号: F25B45/00 ; B60H1/00 ; B61D17/12 ; B61D27/00
摘要:
A renewal method of an air-conditioning unit for vehicle in which an air-conditioning unit using a former refrigerant disposed in a frame mounted on a vehicle is renewed to an air-conditioning unit using an alternative refrigerant, the renewal method including a removal step of: a removing the existing air-conditioning unit from the frame; an assembly step of disposing the new air-conditioning unit, which is configured so as to be capable of fitting in the frame, in the frame; and a filling step of filling the alternative refrigerant into the new air-conditioning unit. The circulating amount of refrigerant in the new air-conditioning unit is increased so as to be larger than that in the previous air-conditioning unit, and the heat exchange capacity per unit volume of each of the indoor heat exchanger and the outdoor heat exchanger is made larger than that before the renewal.