Abstract: A self adjusting gear pump (10) for an ice cream freezer and a control unit (20) for adaptively controlling the closing pressure (PCLOSE) of a pump for an ice cream freezer. The gear pump system comprises a pump casing (11), an inlet (12) for receiving a liquid food product of ice cream mix, an outlet (15) for transferring the ice cream mix into a freezing cylinder (41) of the ice cream freezer (40), wherein the pump (10) is closed by supplying a closing air pressure onto a moveable pump cover (16) of the pump via at least one hole (191, 192) provided straight through the pump casing (11), thereby moving said moveable pump cover (16) against the star wheel (14) and a control unit (20) for supplying a calculated closing air pressure (PCLOSE) to the pump by means of the air pressure regulator (100).

Abstract: An ice cream production apparatus comprises a control unit, a freezer, a freezer outlet pump and a piping system provided from the freezer to one or more ice cream outlet nozzles downstream the freezer, can assume at least two operational modes. The first operational mode is a production mode. The second operational mode is a pre-production mode comprising the steps of freezing the ice cream in the freezer such that the ice cream obtains a pre-production viscosity value being equal to or higher than a production viscosity value, and pumping the frozen ice cream into the piping system at a pre-production outlet flow being smaller than a production outlet flow. The pre-production mode is used for cooling the piping system and the ice cream outlet nozzles before operating the ice cream production apparatus in the production mode.

Abstract: A self adjusting gear pump (10) for an ice cream freezer and a control unit (20) for adaptively controlling the closing pressure (PCLOSE) of a pump for an ice cream freezer. The gear pump system comprises a pump casing (11), an inlet (12) for receiving a liquid food product of ice cream mix, an outlet (15) for transferring the ice cream mix into a freezing cylinder (41) of the ice cream freezer (40), wherein the pump (10) is closed by supplying a closing air pressure onto a moveable pump cover (16) of the pump via at least one hole (191, 192) provided straight through the pump casing (11), thereby moving said moveable pump cover (16) against the star wheel (14) and a control unit (20) for supplying a calculated closing air pressure (PCLOSE) to the pump by means of the air pressure regulator (100).

Abstract: A through-flow freezer is disclosed comprising a freezing cylinder, an inlet pipe, an inlet blocking device, an air inlet, an outlet pipe and an outlet blocking device, wherein, at least in one operational mode of the through-flow freezer, the inlet blocking device and the outlet blocking device are closed such that a certain amount of mix and a certain amount of air substantially corresponding to a desired overrun in the freezing cylinder can be entrapped in the freezing cylinder by introducing air via the air inlet. Furthermore, a method for starting up a through-flow freezer is disclosed comprising the step of adding air through the air inlet until a certain amount of mix and a certain amount of air substantially corresponding to a desired overrun is entrapped in the freezing cylinder and a certain cylinder pressure is reached in the freezing cylinder before starting the cooling of the freezing cylinder.

Abstract: An ice cream production apparatus comprises a control unit, a freezer, a freezer outlet pump and a piping system provided from the freezer to one or more ice cream outlet nozzles downstream the freezer, can assume at least two operational modes. The first operational mode is a production mode. The second operational mode is a pre-production mode comprising the steps of freezing the ice cream in the freezer such that the ice cream obtains a pre-production viscosity value being equal to or higher than a production viscosity value, and pumping the frozen ice cream into the piping system at a pre-production outlet flow being smaller than a production outlet flow. The pre-production mode is used for cooling the piping system and the ice cream outlet nozzles before operating the ice cream production apparatus in the production mode.

Abstract: A through-flow freezer is disclosed comprising a freezing cylinder, an inlet pipe, an inlet blocking device, an air inlet, an outlet pipe and an outlet blocking device, wherein, at least in one operational mode of the through-flow freezer, the inlet blocking device and the outlet blocking device are closed such that a certain amount of mix and a certain amount of air substantially corresponding to a desired overrun in the freezing cylinder can be entrapped in the freezing cylinder by introducing air via the air inlet. Furthermore, a method for starting up a through-flow freezer is disclosed comprising the step of adding air through the air inlet until a certain amount of mix and a certain amount of air substantially corresponding to a desired overrun is entrapped in the freezing cylinder and a certain cylinder pressure is reached in the freezing cylinder before starting the cooling of the freezing cylinder.