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1. 发明专利

JP5296658B2 Refrigerant circuit 有权
公开(公告)号：JP5296658B2
公开(公告)日：2013-09-25
申请号：JP2009251050
申请日：2009-10-30
申请人：ヤンマー株式会社
发明人：啓二杉森 , 良和大田 , 恭子野村
IPC分类号： F25B49/02 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To provide a refrigerant circuit having a configuration in which a plurality of compressors are provided in parallel in the common refrigerant circuit and capable of sensing a backflow of a discharged refrigerant in the state where the compressor during operation and the compressor during stop are mixed. SOLUTION: The refrigerant circuit 1 includes a control device 10 detecting a sensed pressure PH of a discharge route 12, a sensed pressure PL of a suction route 11, sensed temperatures TD1, TD2 on discharge sides of the respective compressors 21, 22 and a sensed temperature TS in the suction route 11, calculating a theoretical refrigerant discharge temperature TDt based on compressor efficiency, determining whether the sensed temperature TD1 on the discharge side of the compressor 21 during operation is abnormally higher than the theoretical refrigerant discharge temperature TDt, outputting instruction to stop all of the compressors 21, 22 during operation when it is determined that the sensed temperature TD1 is abnormally higher than the theoretical refrigerant discharge temperature TDt, determining whether the sensed pressures PL, PH of the discharge route 12 and the suction route 11 reach a pressure equalization state for a predetermined time without opening a bypass valve 23 after the stop instruction, and determining that a refrigerant backflow occurs when it is determined that the sensed pressures PL, PH reach the pressure equalization state. COPYRIGHT: (C)2011,JPO&INPIT

2. 发明专利

JP4549205B2 Engine driven heat pump 有权
公开(公告)号：JP4549205B2
公开(公告)日：2010-09-22
申请号：JP2005067507
申请日：2005-03-10
申请人：ヤンマー株式会社
发明人：伸一大塚 , 啓二杉森 , 正彦藤井
IPC分类号： F25B27/02 , F24F11/02 , F25B27/00
CPC分类号： Y02A30/274 , Y02B30/52 , Y02P80/152
摘要： PROBLEM TO BE SOLVED: To reduce loss of refrigerant pressure and to supply proper amounts of refrigerant to an outdoor heat exchanger and an engine waste heat recovering unit, in an engine driven heat pump comprising the engine waste heat recovering unit to increase heating capacity. SOLUTION: In this engine driven heat pump, the outdoor heat exchanger 4 and the engine waste heat recovering unit 15 are arranged in parallel, thus the influence by pressure loss of the engine waste heat recovering unit 15 is reduced and the lowering of the refrigerant circulating amount can be prevented. Further the supply of refrigerant to the outdoor heat exchanger 4 and the engine waste heat recovering unit 15 is properly controlled. That is, an expansion valve 6 for the outdoor heat exchanger is controlled on the basis of a first superheating degree of a suction piping before a compressor, on the other hand, an expansion valve 12 for the engine waste heat recovering unit is controlled on the basis of a second superheating degree of downstream of the engine waste heat recovering unit. The second superheating degree is determined to be higher than the first superheating degree by more than a prescribed value, and the refrigerant of proper amount in response to the outside air as a heat source of the outdoor heat exchanger 4 is controlled to divisionally flow to the engine waste heat recovering unit 15. COPYRIGHT: (C)2006,JPO&NCIPI

3. 发明专利

JP5663345B2 圧縮機の異常検知機能を備えた冷媒回路有权
标题翻译：制冷剂回路，其包括压缩机的异常检测功能
公开(公告)号：JP5663345B2
公开(公告)日：2015-02-04
申请号：JP2011038689
申请日：2011-02-24
申请人：ヤンマー株式会社
发明人：弘樹成安 , 弘樹成安 , 和樹岩村 , 和樹岩村 , 啓二杉森 , 啓二杉森
IPC分类号： F25B49/02

4. 发明专利

JP5033029B2 Gas engine control unit 有权
公开(公告)号：JP5033029B2
公开(公告)日：2012-09-26
申请号：JP2008075776
申请日：2008-03-24
申请人：ヤンマー株式会社
发明人：哉中村 , 啓二杉森 , 健一福田 , 真吾米倉 , 志郎谷原
IPC分类号： F02D19/02 , F02D41/02 , F02D41/04 , F02M21/04
CPC分类号： F02D19/023 , F02D19/022 , F02D41/0027 , F02D41/0097 , F02D41/1498 , F02D2200/101 , F02D2200/1012 , F02M21/0239 , F02M21/047 , Y02T10/32

5. 发明专利

JP5123017B2 Engine system monitoring equipment 有权
公开(公告)号：JP5123017B2
公开(公告)日：2013-01-16
申请号：JP2008075784
申请日：2008-03-24
申请人：ヤンマー株式会社
发明人：秀喜金井 , 啓二杉森 , 哉中村
IPC分类号： F01M11/10 , F02D45/00

6. 发明专利

JP5074255B2 Gas engine control unit 有权
公开(公告)号：JP5074255B2
公开(公告)日：2012-11-14
申请号：JP2008075785
申请日：2008-03-24
申请人：ヤンマー株式会社
发明人：哉中村 , 啓二杉森 , 健一福田 , 真吾米倉 , 志郎谷原
IPC分类号： F02D41/04 , F02B43/00 , F02D19/02 , F02D41/14 , F02D45/00 , F02M21/02
CPC分类号： Y02T10/32

7. 发明专利

JP4274598B2 The outdoor unit of the engine heat pump 失效
公开(公告)号：JP4274598B2
公开(公告)日：2009-06-10
申请号：JP14967998
申请日：1998-05-29
申请人：ヤンマー株式会社
发明人：大介中井 , 雅樹井上 , 武生井村 , 良和大田 , 豊博後藤 , 啓二杉森 , 智樹林 , 和敏稲吉 , 尚茄子川 , 康祐角谷
IPC分类号： F24F5/00 , F25B27/00

8. 发明专利

JP4257351B2 Engine driven heat pump 有权
公开(公告)号：JP4257351B2
公开(公告)日：2009-04-22
申请号：JP2006215047
申请日：2006-08-07
申请人：ヤンマー株式会社
发明人：寛彦延原 , 弘樹成安 , 啓二杉森 , 正彦藤井
IPC分类号： F25B47/02 , F24F11/02 , F25B27/00 , F25B27/02
CPC分类号： Y02A30/274 , Y02P80/152
摘要： PROBLEM TO BE SOLVED: To present a state determination and its timing of transferring to defrosting operation reduced in influence on original operation, in the defrosting operation of an engine-driven type heat pump. SOLUTION: This engine-driven type heat pump 1 has a defrosting operation mode of evaporating a refrigerant not evaporated by an indoor heat exchanger 6 by a waste heat recovery unit 7, by stopping the refrigerant inflow or restricting the refrigerant inflow to the indoor heat exchanger 6, and comprises therefore the ordinary defrosting setting of transferring to the defrosting operation mode when determining frosting of an outdoor heat exchanger 5, the heating emphasizing setting severer in a transfer condition to the defrosting operation mode than the ordinary defrosting setting, and the stopping time defrosting setting of transferring to the defrosting operation mode only when stopping air-conditioning operation. COPYRIGHT: (C)2008,JPO&INPIT

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