| 摘要 |
PURPOSE: A device for indicating pressure of refrigerant of air conditioner of automobile is provided to allow a driver or a mechanic to conveniently recognize amount of refrigerant of the air conditioner. CONSTITUTION: A device comprises an indicator(100), made of transparent material and having an indicator inlet(110) coupled to a receiver pipe(300a) connected to a receiver on one end thereof, an indicator outlet(120) coupled to an expansion valve pipe(300b) connected to an expansion valve on the other end thereof and a scale(130) carved thereon longitudinally; and an elastic body(200), placed in the indicator and having one side coupled to the indicator inlet and the other side with a discal marker(210).
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