| 摘要 |
a)This installation comprises a freezing device composed of a cylindrical chamber forming a double envelope inside which turns a stirring means consisting of an Archimedean screw provided at its periphery with scraper-blades, an expansion (whipping) device supplied with non-expanded (non-whipped) product and expansion (whipping) gas and supplying the freezing device. b)Installation characterised in that the expansion (whipping) device consists of a part of the conduit 15, 100, 101, 102 equipped with a nozzle 105 for injecting air, having microperforations. <IMAGE>
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