Importance

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Abstract

Method for the control of the flow rate of refrigerating fluid in ice cream making machines comprising a vapour-compression refrigerating circuit provided as a minimum with a compressor, a condenser, an evaporator and a main valve for injecting refrigerating fluid into the said evaporator, the method comprising the following steps: measuring the temperature-pressure values of the fluid at the outlet of the evaporator; tapping off, on the basis of the measurement taken in the first step, a flow of hot gas at the outlet of the compressor; and sending this tapped-off flow of gas to a point downstream of the main refrigerating fluid injection valve. This method is carried out by means of an apparatus comprising at least one tapping-off line that takes a flow of gas from the outlet of this compressor and sends it to a zone of this circuit situated between the main valve and the evaporator, means are provided on this line to control and monitor this tapped-off flow of gas.

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First Claim