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公开(公告)号:US4995792A
公开(公告)日:1991-02-26
申请号:US399261
申请日:1989-08-28
IPC分类号: F04C29/02
CPC分类号: F04C29/02
摘要: Decreased lubricity of lubricating oil (36) in a compressor utilized in a vapor compression refrigeration system as well as decreases in thermal efficiency of such a system during start-up are avoided in a compressor structure including a housing (10) containing a compressing mechanism (28), (40) therein, an outlet (34) for the compression mechanism, an inlet (30), (32) for gas to compressed to the compressing mechanism (28), and a sump (24) within the housing (10) for containing the lubricant (36). A conduit (54), (60), (62), (64), (66) is utilized to direct compressed gas from the outlet (34) into heat exchange relation with the lubricant (36) within the sump (24) to drive any refrigerant in solution in the lubricant out of solution so as to improve lubricity and maintain system efficiency.
摘要翻译: 在包括压缩机构的壳体(10)的压缩机结构中,避免了在蒸汽压缩制冷系统中使用的压缩机中的润滑油(36)的润滑性降低以及起动时这种系统的热效率的降低, 28),(40),用于压缩机构的出口(34),用于压缩到压缩机构(28)的气体的入口(30),(32))以及壳体(10)内的贮槽 )用于容纳润滑剂(36)。 管道(54),(60),(62),(64),(66)用于将来自出口(34)的压缩气体引导到与贮槽(24)内的润滑剂(36)的热交换关系 将润滑剂中溶液中的任何制冷剂从溶液中驱出,以提高润滑性并保持系统效率。
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公开(公告)号:US4869071A
公开(公告)日:1989-09-26
申请号:US172420
申请日:1988-03-24
CPC分类号: B64D13/00 , F25B1/10 , B64D2013/0614
摘要: A cooling system is disclosed for a pod (20) of an aircraft. The cooling system includes an air circulation loop (28) for supplying cooled air to an air input (32) of the pod to cool a load disposed in the pod and for receiving air discharged from an air discharge (34, 35) to the pod which has absorbed heat from the pod. A cooling apparatus (30) is disposed in the loop which is activated to cool air flowing in the loop prior to application to the pod. A fan (48) is located in the air circulation loop between the cooling apparatus and the air discharge (35) which is activated to blow discharged air toward the cooling apparatus when the aircraft is operated in a first portion of the flight envelope. A ram air supply (44) supplies ram air in response to flight of the aircraft. A valve (46), which is coupled to the ram air supply and to the loop blocks the supply of ram air to the loop in response to the aircraft being in the first portion of the flight envelope and supplies ram air to the loop when the aircraft is outside the first portion of the flight envelope. A controller (38), responsive to a temperature sensor (52) sensing air temperature of air supplied to the pod controls the activation of the cooling apparatus in response to the sensing of a temperature above a predetermined temperature when the aircraft is operating in the first portion of the flight envelope.
摘要翻译: 公开了用于飞机的舱(20)的冷却系统。 冷却系统包括用于将冷却的空气供应到舱的空气输入端(32)的空气循环回路(28),用于冷却设置在舱内的负载,并用于接收从空气排放口(34,35)排放到舱 这已经从荚中吸收了热量。 冷却装置(30)设置在环中,其被激活以在施加到荚之前冷却在环中流动的空气。 风扇(48)位于冷却装置和空气排放口(35)之间的空气循环回路中,当飞行器在飞行信封的第一部分中操作时,该空气循环被致动以将排出的空气吹向冷却装置。 冲压空气供应(44)为飞机的飞行提供冲压空气。 联接到冲压空气供应器和回路的阀门(46)响应于飞行器处于飞行包线的第一部分中而阻塞向环路供应的冲压空气,并且当冲程空气供应到空气环 飞机在飞行信封的第一部分之外。 响应于感测供应到舱的空气温度的温度传感器(52)的控制器(38)响应于当飞行器在第一个操作时响应于高于预定温度的温度的感测来控制冷却设备的启动 飞行信封的一部分。
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