公开(公告)号：EP4350249A3

公开(公告)日：2024-06-12

申请号：EP23196704.3

申请日：2023-09-12

申请人： Sumitomo Heavy Industries, Ltd.

发明人： YOKODO, Takayuki ,  MATSUI, Takaaki

IPC分类号： F25B9/06 ,  F17C1/00 ,  F25B9/10 ,  F25B9/14 ,  F25D19/00

CPC分类号： F25B9/06 ,  F25B9/10 ,  F25B9/14 ,  F25B2309/00520130101 ,  F25B9/145 ,  F25B2700/19320130101 ,  F25B2700/193320130101

摘要： An initial cooling time of a cryocooler (10) is shortened. A method for operating a cryocooler 10 includes: connecting a second compressor 80 in series with a first compressor 12 on a high pressure line 63 or a low pressure line 64; connecting a buffer volume 70 to the low pressure line 64 via a supply valve 72; executing initial cooling for cooling an expander 14 from an initial temperature to a cryogenic temperature in a state where the second compressor 80 and the buffer volume 70 are connected to the cryocooler 10; and executing a steady operation of maintaining the expander 14 at the cryogenic temperature after the initial cooling. The execution of the initial cooling includes supplying a working gas to the expander 14 by using the first compressor 12 and the second compressor 80, and controlling the supply valve 72 to keep a pressure of the high pressure line 63 within a preset appropriate pressure range based on the measured pressure of the high pressure line 63.

公开(公告)号：EP4437237A1

公开(公告)日：2024-10-02

申请号：EP22851369.3

申请日：2022-12-23

申请人： Copeland LP

发明人： PEREVOZCHIKOV, Michael M. ,  SWALLOW, Matthew J. ,  LIU, Zheji

IPC分类号： F04D27/00 ,  F04D17/12 ,  F04D27/02 ,  F25B49/02

CPC分类号： F05D2270/30420130101 ,  F05D2270/30120130101 ,  F04D17/12 ,  F04D27/0246 ,  Y02B30/70 ,  F25B1/10 ,  F25B49/025 ,  F25B2400/1320130101 ,  F25B2600/02520130101 ,  F25B2500/1920130101 ,  F25B2600/02420130101 ,  F25B2700/15120130101 ,  F25B2700/17120130101 ,  F25B2700/19320130101 ,  F25B2600/025320130101 ,  F25B2600/02620130101 ,  F25B41/30 ,  F25B5/02 ,  F25B6/02