Freezing cylinder beater

A frozen product dispensing apparatus (20) comprises a refrigeration system (50) and a freezing cylinder (52). A source (42) of the product or precursors of the product is coupled to an inlet (124) of the freezing cylinder. An outlet valve (38) has an open condition for discharging product from the freezing cylinder. A beater assembly (53) is within the freezing cylinder and has an axis (502) and an outer helical member (152). A motor (62) is coupled to the beater assembly for driving rotation of the beater assembly about the axis so that when driving said rotation in a first direction (530), the outer helical member drives product (540) toward the outlet valve. The beater further comprises an inner helical member (200; 300; 400) within the outer helical member. 种冷冻产品配制设备(20)包括制冷系统(50)和冷冻缸(52)。所述产品或所述产品的先质的料源(42)耦合到所述冷冻缸的入口(124)。出口阀(38)具有用于从所述冷冻缸排放产品的打开状态。搅拌器组件(53)处于所述冷冻缸内并且具有轴(502)及外螺旋构件(152)。电动机(62)耦合到所述搅拌器组件以用于驱动所述搅拌器组件绕所述轴的旋转，使得当沿第方向(530)驱动所述旋转时，所述外螺旋构件朝向所述出口阀驱动产品(540)。所述搅拌器进步包括处于所述外螺旋构件内的内螺旋构件(200；300；40