Abstract: A method and a high-pressure system for determining a flow control variable of a fluid flow flowing through a high-pressure-side high-pressure pump outlet of a high-pressure pump are provided. An externally arranged ultrasonic measuring device measures a flow speed of a fluid flow flowing through a pipe of the high-pressure-side high-pressure pump outlet. A use of an ultrasonic measuring device is provided for determining a flow value to be achieved of a fluid flow flowing through a thick-walled pipe. The ultrasonic measuring device is arranged on the outside on the thick-walled pipe of the high-pressure pump outlet. The pipe has a ratio of the internal diameter to the external diameter of 1:1.5 to 1:5. The ultrasonic measuring device dynamically measures the flow speed of the fluid flow and transmits this measured flow speed to an evaluation unit to compute a current flow value and the flow control variable.

Abstract: The present disclosure concerns a spring device with a piston and a housing into which the piston can be introduced in a movement direction. A cavity is formed between the piston and the housing, in which cavity a compressible solid body spring is arranged that consists of a solid body that can be compressed by the piston. At least one surface of the piston that faces the solid body spring is conical or concave. The disclosure furthermore concerns a securing device comprising such a spring device and the use thereof, in particular for a container closing plug.

Abstract: A device for high-pressure treatment of goods in a sealable high-pressure chamber may include a holding frame that holds the high-pressure chamber during pressurization, a closure having a sealing plug for sealing the high-pressure chamber, a hydraulic drive for moving the closure relative to the pressure chamber, and a support device that is movable between an end face of the high-pressure chamber and the holding frame and transmits force between the closure and the holding frame during pressurization. Axial forces acting on the sealing plug from the pressure may be absorbed by a force-transmission device configured as a semicircular disk. The semicircular disk may have an end face that faces the high-pressure chamber and a holder for a hydraulic cylinder. The semicircular disk may form a part of the outer shell of the hydraulic cylinder bearing the hydraulic pressure.

Abstract: The present disclosure concerns a spring device with a piston and a housing into which the piston can be introduced in a movement direction. A cavity is formed between the piston and the housing, in which cavity a compressible solid body spring is arranged that consists of a solid body that can be compressed by the piston. At least one surface of the piston that faces the solid body spring is conical or concave. The disclosure furthermore concerns a securing device comprising such a spring device and the use thereof, in particular for a container closing plug.

Abstract: A method for the high-pressure treatment of a product, such as packaged food, for example, may involve subjecting the product to a pressure medium in a high-pressure chamber and then lowering the pressure built up in the high-pressure chamber. The lowering of the pressure may take place in one or more phases, and at least in one of the phases the lowering of the pressure is controlled based on a second parameter, which is determined based on a first parameter recorded during pressure buildup. A system for performing such high-pressure treatment may generally include a first device for supplying a pressure chamber with a high-pressure medium and a second device for lowering the pressure in the pressure chamber.

Abstract: The present disclosure relates to a high-pressure valve for use in an installation for the high-pressure treatment of products in a high-pressure chamber, wherein the products, acted on by a high-pressure medium, are treated at a pressure of up to 10 000 bar.

Abstract: The invention relates to a support ring arrangement for a high-pressure seal which is provided, along with said support ring arrangement, for an axially slidable or pivotable container closure ( ) mounted in a cylindrical section of a high-pressure container, said high-pressure seal radially sealing the cylindrical section of the high pressure container with the aid of said support ring arrangement, and a maximum pressure of up to 10,000 bar being exerted, by means of a fluid, onto said support ring arrangement and high-pressure seal.

Abstract: The invention relates to a device for high-pressure treatment of goods in a sealable high-pressure chamber, having a holding frame in which the high-pressure chamber (2) is held during pressurization, a withdrawing device with which the high-pressure chamber (2) can be withdrawn laterally from the holding frame, at least one closure on the end face having a sealing plug (3a, 3b) for the high-pressure chamber (2), at least one hydraulic drive for moving the closure (3a, 3b) on the end face into the pressure container, a line system with connections with which the high-pressure medium is conveyed into the high-pressure chamber and, after treatment, conveyed back out again, a support device (6a, 6b) which is arranged so as to be moveable between the end faces of the high-pressure chamber (2) and the holding frame and transmits the force between the container closure and holding frame during pressurisation, wherein the axial forces acting on the sealing mechanism from the treatment pressure are absorbed by means

Abstract: The present disclosure relates to a high-pressure valve for use in an installation for the high-pressure treatment of products in a high-pressure chamber, wherein the products, acted on by a high-pressure medium, are treated at a pressure of up to 10 000 bar.

Abstract: The invention relates to a support ring arrangement for a high-pressure seal which is provided, along with said support ring arrangement, for an axially slidable or pivotable container closure ( ) mounted in a cylindrical section of a high-pressure container, said high-pressure seal radially sealing the cylindrical section of the high pressure container with the aid of said support ring arrangement, and a maximum pressure of up to 10,000 bar being exerted, by means of a fluid, onto said support ring arrangement and high-pressure seal.

Abstract: The invention relates to a method for suspending and introducing solid matter in a high-pressure process, for example colorant pigments in a high-pressure process, in which a supercritical fluid is used as the process medium and a pressure in excess of 150 bar prevails. According to the invention, the suspension of the solid matter takes place at a low-pressure in a completely separate suspension method. In the latter, the solid matter is suspended or partially dissolved in a non-critical, liquid gas. The pressure in said suspension method is less than 90% of the critical pressure of the liquid gas. The suspension is introduced into the high-pressure process by means of a pump.