公开(公告)号：US20080053125A1

公开(公告)日：2008-03-06

申请号：US11844553

申请日：2007-08-24

申请人： Ryosuke SATAKE ,  Masaaki TONEGAWA ,  Tomohiro YUASA ,  Tokumi TSUGAWA

发明人： Ryosuke SATAKE ,  Masaaki TONEGAWA ,  Tomohiro YUASA ,  Tokumi TSUGAWA

IPC分类号： F25B41/04

CPC分类号： F25B41/062 ,  F25B9/008 ,  F25B40/00 ,  F25B2309/061 ,  F25B2500/18 ,  F25B2500/26 ,  F25B2600/2505 ,  F25B2700/21174

摘要： To provide an expansion device which shortens cool down time when an automotive air conditioner is started under a high-load condition. An expansion device having a differential pressure control valve is configured such that a temperature-sensing actuator (shape-memory alloy spring) is disposed at an refrigerant outlet of the expansion device, and when an air conditioner is started under a high-load condition in which the temperature of refrigerant at the refrigerant outlet is high, the shape-memory alloy spring senses the high temperature, to urge a spring determining a valve-opening point of the differential pressure control valve, whereby the differential pressure control valve is opened in advance or placed in a state capable of opening in response to a very low differential pressure, thereby making it possible to cause refrigerant to flow at a large flow rate until the temperature of refrigerant at the refrigerant outlet is lowered to a temperature assumed when the air conditioner functions.

摘要翻译： 提供一种在高负载条件下启动汽车空调时缩短冷却时间的膨胀装置。 具有差压控制阀的膨胀装置被构造为使得温度感应致动器（形状记忆合金弹簧）设置在膨胀装置的制冷剂出口处，并且当空调在高负载条件下启动时 制冷剂出口处的制冷剂的温度高，形状记忆合金弹簧感测高温，促使确定差压控制阀的开阀点的弹簧，由此差压控制阀预先打开 或放置在能够响应于非常低的压差而打开的状态，从而使制冷剂能够以大的流量流动，直到制冷剂出口处的制冷剂的温度降低到当空调器 功能。