公开(公告)号：US07552596B2

公开(公告)日：2009-06-30

申请号：US11025352

申请日：2004-12-27

Applicant: Timothy P. Galante ,  Sivakumar Gopalnarayanan ,  Don Alan Schuster ,  Craig R. Kersten ,  Larry Burns

Inventor： Timothy P. Galante ,  Sivakumar Gopalnarayanan ,  Don Alan Schuster ,  Craig R. Kersten ,  Larry Burns

IPC: F25B49/00 ,  F25B45/00

CPC classification number: G01K11/165 ,  F25B45/00 ,  F25B49/005 ,  F25B2345/001 ,  F25B2700/04 ,  F25B2700/2106 ,  F25B2700/2116 ,  F25B2700/21163 ,  F25D2400/36

Abstract: The sufficiency of refrigerant charge in an air conditioning system is determined by a comparison of two sensed temperatures in the system, one being the liquid line temperature and the other being either the outdoor temperature or the condenser coil temperature. In one embodiment the two sensed temperatures are displayed on respective thermochromic strips which are so calibrated and juxtaposed as to provide a visual indication, by the relative positions of the two displayed sensed temperatures, as to whether the refrigerant charge is adequate. In another embodiment, the sensed liquid line temperature is displayed by way of a plurality of LEDs and the other temperature is displayed by way of a marker on a temperature scale. If the two displayed temperatures are aligned, then the refrigerant charge is optimized, and if they are not aligned, the system is undercharged or overcharged.

Abstract translation: 空调系统中制冷剂充注的充足性取决于系统中两个感测温度的比较，一个是液体管线温度，另一个是室外温度或冷凝器盘管温度。 在一个实施例中，两个感测到的温度显示在相应的热变色条上，这些条带被如此校准并且并置，以通过两个显示的感测温度的相对位置提供关于制冷剂充注量是否足够的可视指示。 在另一个实施例中，通过多个LED显示感测到的液体线温度，另一个温度通过温度标度的标记来显示。 如果两个显示的温度对齐，则制冷剂充量被优化，如果它们不对准，则系统的充电不足或过充电。