公开(公告)号：US4083195A

公开(公告)日：1978-04-11

申请号：US788325

申请日：1977-04-18

申请人： Daniel E. Kramer ,  Israel Kramer ,  Harold Kramer ,  Lawrence C. Board ,  Ram Kumar Chopra ,  William Micai

发明人： Daniel E. Kramer ,  Israel Kramer ,  Harold Kramer ,  Lawrence C. Board ,  Ram Kumar Chopra ,  William Micai

IPC分类号： F25B31/00 ,  F25B41/04 ,  F25B47/02 ,  F25B41/00 ,  F25B47/00

CPC分类号： F25B31/004 ,  F25B41/04 ,  F25B47/022

摘要： A compression type refrigeration system including at least one frosting evaporator positioned to refrigerate air. The evaporator has a liquid refrigerant inlet to which is connected an expansion valve. The evaporator also has a hot gas inlet; a liquid line supplies liquid to the expansion valve; a branch in the liquid line controlled by a solenoid valve connects to the hot gas inlet. The condensing unit, which includes compressor, condenser, receiver and re-evaporator, are valve-controlled so that during refrigeration, discharge gas from the compressor flows through the condenser, receiver, liquid line and expansion valve seriatim, but during defrost, gas from the compressor bypasses the condenser and flows instead from the compressor through the receiver, liquid line and hot gas inlet of the evaporator seriatim.

摘要翻译： 一种压缩式制冷系统，包括至少一个结霜蒸发器，其定位成冷却空气。 蒸发器具有液体制冷剂入口，其连接有膨胀阀。 蒸发器还具有热气入口; 液体管线向膨胀阀供应液体; 由电磁阀控制的液体管路中的分支件连接到热气体入口。 包括压缩机，冷凝器，接收器和再蒸发器在内的冷凝单元被阀控制，使得在制冷期间，来自压缩机的排出气体流过冷凝器，接收器，液体管线和膨胀阀，但在除霜期间，来自 压缩机绕过冷凝器，通过接收器，液体管线和蒸发器的热气体入口代替压缩机流动。