A machine for making liquid or semi-liquid products comprises: a first container adapted to contain a first liquid or semi-liquid basic product; a first stirrer, mounted inside the first container; a second container connected to the first container to receive therefrom the first liquid or semi-liquid basic product; a pipe connecting the first container to the second container; a second stirrer, mounted inside the second container; a pump, having a first inlet duct, connected to the first container in order to draw the first liquid or semi-liquid basic product, a second, air inlet duct, and an outlet connected to the connecting pipe, the pump being also configured to mix the first liquid or semi-liquid basic product with air by compression.

The evaporator (1) of a refrigeration cycle machine, comprising at least a first container (2) and at least a second container (3) housed within the first container (2), the first container (2) and the second container (3) having opposite surfaces configured and arranged to form in cooperation with one another a channel (6) for the circulation of the coolant fluid used in the refrigeration cycle.

Disclosed herein are methods, systems, and apparatuses for producing frozen comestible products with entrained gas. The systems and apparatuses may function for long periods of time without cleaning. The systems and apparatuses may be used in producing soft-serve products entrained with a gas including soft-serve ice cream, soft-serve frozen yogurt, frozen pureed fruit, sorbet, soft-serve frozen custard, and other foods capable of being made into soft-serve products. An overrun control module, which may include a gas regulator or a pressure switch, may regulate quantities of a freezable comestible mixture and a compressed gas that pass through to an accumulator, where the gas becomes entrained in (e.g., dissolves in or becomes suspended in) the freezable comestible mixture. The freezable comestible mixture entrained with a gas may pass to the freezing chamber, which produces a frozen comestible product entrained with a gas. The system may be maintained at a state of overpressurization to reduce or eliminate environmental air and environmental contaminants from entering the system, which may increase the amount of time between cleanings.

Provided is a cooling chamber, cooling system and an appliance for producing cooled edible products, such as ice cream, sorbets, frozen yogurt, foamed cooled drinks, etc.

A cooling control device comprises a compressor, a condenser, a material reservoir evaporator, a freezing cylinder refrigeration inlet conduit, and a freezing cylinder refrigeration outlet conduit. An outlet end of the condenser is connected to a condenser outlet pipe. The condenser outlet pipe is in communication with three branch pipes, which are a freezing cylinder refrigeration pipe, a material reservoir pre-cooling pipe and a material reservoir freshness-preserving pipe arranged in parallel. The freezing cylinder refrigeration pipe is in communication with the freezing cylinder refrigeration inlet conduit. The material reservoir pre-cooling pipe and the material reservoir freshness-preserving pipe are in communication with an inlet end of the material reservoir evaporator. An outlet end of the material reservoir evaporator and the freezing cylinder refrigeration outlet conduit are respectively in communication with the compressor. The cooling control device can separate a pre-cooling mode and a freshness-preserving mode for a material reservoir.

The stirring apparatus includes a stirring beater configured to be coaxially disposed in a mixing chamber of a freezing cylinder in a rotatable manner for pushing a mixture flowed in the mixing chamber in an inner spiral manner, and one or more scraper blades. The stirring beater includes one or more helical stirring paddles supported by a central frame and spirally extended along a length of the mixing chamber. The one or more scraper blades are mounted along the one or more helical stirring paddles respectively to define a helical diameter matching with an inner diameter of the mixing chamber of the freezing cylinder such that each of the one or more scraper blades is capable of scrapping against an inner surface of the freezing cylinder while a rotation of the stirring beater within the mixing chamber of the freezing cylinder

A machine for making liquid or semi-liquid food products, includes: a first processing container for processing a liquid or semi-liquid base product and defining a processing chamber; a stirrer for mixing the product in the first processing container; a thermal system including a heat exchanger, associated with the first processing container; a drive and control unit, connected to the stirrer and to the thermal system to control them; a user interface including a display and a selection control configured to rotate and/or to be moved in at least one direction, the user interface being configured to allow selections to be made and, being connected to the control unit, to send commands for controlling the thermal system and the stirrer.

A machine for making liquid/semi-liquid food products includes a container for the product; a dispenser connected to the container which allows or inhibits dispensing of the product; a mixing stirrer rotatable about an axis of rotation and mounted inside the container; a thermal system including a circuit with a heat exchanger fluid and an evaporator operatively associated with the container and including an inlet aperture for the fluid, a discharge aperture for the fluid, a first tubular element and a second tubular element coaxial with the first tubular element and having an axial direction of extension and a radial direction of extension, the second tubular element extending along an axial direction parallel to the axis of rotation and being disposed inside the first tubular element to define an annular chamber for circulating the fluid and defined by at least one microchannel, the microchannel having a hydraulic diameter of 3-13 mm.

A method of using a frozen food product dispensing machine includes producing, by the frozen food product dispensing machine, a frozen food product, and dispensing, by the frozen food product dispensing machine, the frozen food product through a nozzle passage of a nozzle coupled to the frozen food product dispensing machine. The nozzle defines a food product inlet fluidly coupled to the frozen food product dispensing machine and a food product outlet. The nozzle passage extends between the food product inlet and the food product outlet. The method includes introducing, by a cleaning fluid source, a cleaning fluid into the nozzle passage through a cleaning fluid inlet in the nozzle. The cleaning fluid inlet is fluidly coupled to the nozzle passage between the food product inlet and the food product outlet.

A sealed pressurized food dispensing system with self-cleaning features that can include a food processing apparatus that includes a cylinder having an inlet for receiving a food ingredient; a faceplate coupled to the cylinder, that defines a dispense bore and a bypass passage having a first open end; a blocking cap coupled to the faceplate to block the dispensing of product from within the cylinder; and a pump having an inlet fluidly coupled to a connection element and an outlet fluidly coupled to the inlet of the cylinder, where connection of the connection element to the source of cleaning fluid will result in the pumping of cleaning fluid into the food dispensing cylinder, though the cylinder into the blocking cap, and through the blocking cap into the bypass passage.