公开(公告)号：US3667247A

公开(公告)日：1972-06-06

申请号：US3667247D

申请日：1970-07-10

Applicant: CONTROLS CO OF AMERICA

Inventor： PROCTOR ROBERT H

IPC: F25B41/06 ,  F25B41/04

CPC classification number: F25B41/062 ,  F25B2341/0683 ,  F25B2500/15 ,  F25B2600/21

Abstract: Refrigerant flows from the compressor and condenser to the evaporator by a thermostatic expansion valve having its pressure and temperature sensing points in the suction line downstream of the evaporator outlet control valve which regulates the evaporator pressure relatively independently of the suction line conditions. When the compressor capacity significantly exceeds evaporator capacity this system provides additional compressor cooling at low suction pressures. The expansion valve may be the bulbless type or the externally equalized type. The outlet control valve may respond to refrigerant temperature at the coil outlet, or to fin temperature, or may be an evaporator pressure regulator valve.

Abstract translation: 制冷剂通过恒温膨胀阀从压缩机和冷凝器流向蒸发器，该恒温膨胀阀的蒸发器出口控制阀下游的吸入管线中具有压力和温度检测点，其相对于吸入管线条件调节蒸发器压力。 当压缩机容量显着超过蒸发器容量时，该系统在低抽吸压力下提供额外的压缩机冷却。 膨胀阀可以是无球型或外部均衡型。 出口控制阀可以响应于线圈出口或散热片温度下的制冷剂温度，或者可以是蒸发器压力调节阀。