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Patent Searching and Data


Title:
HEAT PUMP
Document Type and Number:
WIPO Patent Application WO/2018/173490
Kind Code:
A1
Abstract:
A heat pump (1), provided with an engine drive compressor (13), an electric compressor (16), an oil separator (20), an electric compressor discharge pipe (85), and an engine drive compressor discharge pipe (81). The oil separator (20) separates lubricant oil included in a refrigerant discharged by an engine drive compressor (13) and an electric compressor (16). The electric compressor discharge pipe (85) extends from the electric compressor (16) and discharges the refrigerant towards the oil separator (20). The engine drive compressor discharge pipe (81) extends from the engine drive compressor (13) and discharges the refrigerant towards the oil separator (20). At least a part of the engine drive compressor discharge pipe (81) on the upstream side, with respect to the direction in which the refrigerant is discharged, of the portion at which the engine drive compressor discharge pipe (81) merges with the electric compressor discharge pipe (85) is made of a flexible tube (82, 83).

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Inventors:
OKUDA, Norihiro (1-9, Tsurunocho, Kita-ku, Osaka-sh, Osaka 14, 〒5300014, JP)
KANAI, Hideyuki (1-9, Tsurunocho, Kita-ku, Osaka-sh, Osaka 14, 〒5300014, JP)
Application Number:
JP2018/003058
Publication Date:
September 27, 2018
Filing Date:
January 31, 2018
Export Citation:
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Assignee:
YANMAR CO., LTD. (1-32, Chayamachi Kita-ku, Osaka-sh, Osaka 11, 〒5308311, JP)
International Classes:
F25B41/00; F04B39/00; F04B39/12; F04B41/06; F25B27/00; F25B31/00
Foreign References:
JP2013250004A2013-12-12
JPS55116960U1980-08-18
JP2006250435A2006-09-21
Attorney, Agent or Firm:
KATSURAGAWA, Naoki (KATSURAGAWA INT'L PATENT OFFICE Wako Bldg, 2-2-17 Shibata, Kita-ku, Osaka-sh, Osaka 12, 〒5300012, JP)
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