| 摘要 |
PURPOSE:To detect the amount of refrigerant always adequately by installing rectifying grids in proximity to the upper stream side of a refrigerant amount sensor and rectifying the flow of the refrigerant. CONSTITUTION:An expanded pipe 91 is installed on the way of piping 12, 12 in which the refrigerant under refrigeration cycle moves, for example, between a liquid receiver and an expansion valve. A through-hole 92a is formed to the holder 92 screwed to this, and the lead wires 94, 94 of a vibrator 93 pass through this through-hole 92a and are sealed by a cap 95. Two recrifying grids 96a, 96b and two wire gauzes 96c, 96d are installed on the immediate upper stream side of the vibrator 93 in the expanded pipe 91. These rectifying grids 96a, 96b and wire aquezes 96c, 96d are fixed by being held pressed to the step parts 91a of the expanded pipe 91 by means of diffuser pipes 97. |
