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31. 发明公开

EP0835413A4 MIXED REFRIGERANT CRYOGENIC VAPOR COMPRESSION CYCLE 失效
标题翻译：与混合制冷剂低温蒸汽压缩电路
公开(公告)号：EP0835413A4
公开(公告)日：2001-11-14
申请号：EP96923365
申请日：1996-06-21
申请人： APD CRYOGENICS INC
发明人： LONGSWORTH RALPH CADY , BOIARSKY MIKHAIL J , KHATRI AJAY
IPC分类号： F25B1/00 , C09K5/04 , F17C13/00 , F25B9/00 , F25B41/06 , F25B19/00
CPC分类号： F25B9/006 , F17C13/006 , F17C2221/012 , F17C2221/017 , F17C2221/038 , F17C2223/0161 , F17C2223/033 , Y02E60/321
摘要： A closed cycle cryogenic refrigerating system (10) with a fixed restrictor (28) operates with a compressor inlet (22) pressure in a range of 0.1 Mpa and 2.5 Mpa. A basic cryogenic refrigerant mixture is used to which is added approximately 3 % to 25 % of helium, hydrogen and/or neon. A ratio of refrigerant density at the inlet of the fixed restrictor (28) between steady-state operation and operation at the beginning of cool-down is in an approximate range of 7 to 17. Relatively rapid cool-down is achieved and evaporator (3) temperature is maintained in an approximate range of 70K to 120K.

32. 发明授权

EP0650574B1 CRYOGENIC REFRIGERATOR WITH SINGLE STAGE COMPRESSOR 失效
标题翻译：带单级压缩机的低温冰箱
公开(公告)号：EP0650574B1
公开(公告)日：1999-10-27
申请号：EP94915944.6
申请日：1994-04-29
申请人： APD CRYOGENICS INC.
发明人： LONGSWORTH, Ralph, C.
IPC分类号： F25B19/02
CPC分类号： F25B9/02 , F25B9/006 , F25B31/004 , F25B2400/12
摘要： A closed cycle refrigerating system for cryogenic temperatures using a single stage compressor (12) with a refrigerant comprising a gas mixture. The refrigerating system includes a heat exchanger (28) having a throttling orifice (34) which is arranged to provide refrigeration, and a single stage oil lubricated compressor (12) for compressing the refrigerant. The compressor is typically of the rolling piston type. The refrigerant is a mixture of at least one cryogenic gas having a normal boiling point below 120 degrees K and at least two other gases having normal boiling point temperatures below 300 degrees K different from each other and from said one gas. There is also included means (18) for cooling the compressed refrigerant and for circulating the cooled refrigerant to the heat exchanger and its throttling orifice and then back to the compressor. The system does not require any cascaded heat exchangers or intermediate phase separators.
摘要翻译：一种用于使用单级压缩机（12）的低温温度闭合循环制冷系统以及包括气体混合物的制冷剂。该制冷系统包括具有布置成提供制冷的节流孔（34）的热交换器（28）和用于压缩制冷剂的单级油润滑压缩机（12）。压缩机通常是滚动活塞式的。制冷剂是至少一种具有低于120K的标准沸点的低温气体和至少两种具有彼此不同的低于300K的标准沸点温度的其他气体与所述一种气体的混合物。还包括用于冷却压缩制冷剂并用于将冷却制冷剂循环到热交换器及其节流孔并然后返回到压缩机的装置（18）。该系统不需要任何级联热交换器或中间相分离器。

33. 发明公开

EP0650574A4 CRYOGENIC REFRIGERATOR WITH SINGLE STAGE COMPRESSOR. 失效
标题翻译： TIEFSTTEMPERATURKÄLTEANLAGEMIT EINSTUFIGEM VERDICHTER。
公开(公告)号：EP0650574A4
公开(公告)日：1998-01-21
申请号：EP94915944
申请日：1994-04-29
申请人： APD CRYOGENICS INC
发明人： LONGSWORTH RALPH C
IPC分类号： F25B1/00 , F25B9/00 , F25B9/02 , F25B31/00 , F25B19/02
CPC分类号： F25B9/02 , F25B9/006 , F25B31/004 , F25B2400/12
摘要： A closed cycle refrigerating system for cryogenic temperatures using a single stage compressor (12) with a refrigerant comprising a gas mixture. The refrigerating system includes a heat exchanger (28) having a throttling orifice (34) which is arranged to provide refrigeration, and a single stage oil lubricated compressor (12) for compressing the refrigerant. The compressor is typically of the rolling piston type. The refrigerant is a mixture of at least one cryogenic gas having a normal boiling point below 120 degrees K and at least two other gases having normal boiling point temperatures below 300 degrees K different from each other and from said one gas. There is also included means (18) for cooling the compressed refrigerant and for circulating the cooled refrigerant to the heat exchanger and its throttling orifice and then back to the compressor. The system does not require any cascaded heat exchangers or intermediate phase separators.
摘要翻译：一种用于使用单级压缩机（12）的低温温度闭合循环制冷系统以及包括气体混合物的制冷剂。该制冷系统包括具有布置成提供制冷的节流孔（34）的热交换器（28）和用于压缩制冷剂的单级油润滑压缩机（12）。压缩机通常是滚动活塞式的。制冷剂是至少一种具有低于120K的标准沸点的低温气体和至少两种具有彼此不同的低于300K的标准沸点温度的其他气体与所述一种气体的混合物。还包括用于冷却压缩制冷剂并用于将冷却制冷剂循环到热交换器及其节流孔并然后返回到压缩机的装置（18）。该系统不需要任何级联热交换器或中间相分离器。

34. 发明公开

EP0811134A1 VIBRATIONALLY ISOLATED CRYOGENIC DEVICE 失效
标题翻译：振动隔离低温装置
公开(公告)号：EP0811134A1
公开(公告)日：1997-12-10
申请号：EP96906641.0
申请日：1996-02-26
申请人： APD CRYOGENICS INC.
发明人： HILL, Dennis , LONGSWORTH, Ralph, C.
IPC分类号： G01R33 , F17C13 , F25B9 , F25D19 , G01J5
CPC分类号： F17C13/006 , F17C2223/0161 , F17C2227/0337 , F25D19/006 , G01J5/061
摘要： A cryogenic cold head (18) in a canister (14) is partially surrounded by an isolation mass (32). An open portion of the mass (32) permits access for connection of a vapor compression refrigeration unit (22) to the cold head (18), which is highly conductive. Straps (34) of braided copper suspend the isolation mass (32) from the cold head (18), made cold by the refrigeration unit (22). A temperature differential between the cold head (18) and a device-mounting interface (38) on the isolation mass (32) is preferably less than 2.5K per watt of heat transferred. For further vibration isolation, the device (12) is separated from the isolation mass (32) by another braided strap (24) and supported in the canister (14) by struts (16).
摘要翻译：罐（14）中的低温冷头（18）被隔离块（32）部分地包围。质量块（32）的开口部分允许进入蒸气压缩制冷单元（22）到高度导电的冷头（18）的连接。编织铜带（34）将隔离块（32）从冷头（18）悬挂下来，由冷却单元（22）冷却。冷头（18）与隔离质量块（32）上的设备安装接口（38）之间的温度差优选小于2.5K每瓦传递的热量。为了进一步振动隔离，装置（12）通过另一编织带（24）与隔离质量块（32）分离并且通过支柱（16）支撑在罐（14）中。

35. 发明授权

EP0167161B1 Parallel wrapped tube heat exchanger 失效
标题翻译：平行缠绕管热交换器
公开(公告)号：EP0167161B1
公开(公告)日：1989-11-08
申请号：EP85108285.9
申请日：1985-07-04
申请人： APD CRYOGENICS INC.
发明人： Longsworth, Ralph Cady , Steyert, William Albert
IPC分类号： F25B9/02 , F25J1/02
CPC分类号： F28F13/08 , F25B9/02 , F25B2500/01 , F25J5/002 , F25J2215/30 , F25J2270/912 , F25J2290/42 , F25J2290/44

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