1987-02-01

Damage Modes and Protective System for Automobile Cooler Cycle 870034

As the use of automobiles spreads throughout the world, not only the ratio of car air conditioner use but also in the regions in which they are used is increasing. Therefore, the car air conditioner must now be durable enough to withstand many widely different environments.
This paper reports our findings on air conditioner cycle movement in relation to the amount of refrigerant used. It also establishes a protective system against the failure mode under each of the various environments.
In particular, an automatic sensing device is introduced which tells the proper refrigerant level and guards against human error in gas charging.

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