A production apparatus for a liquid containing gas bubbles includes a casing, a pump unit, and a gas bubble-mixing unit. The casing is provided with a main flow channel for a liquid, the main flow channel having a liquid inflow port and a liquid outflow port. The pump unit is disposed in the main flow channel and pumps the liquid to the liquid outflow port from the liquid inflow port. The gas bubble-mixing unit includes a first choke portion that is disposed in the main flow channel and has an inner diameter decreased and a gas supply channel that supplies the first choke portion with a gas.

A heat engine having a circuit system which conducts a fluid and which may include at least one evaporation device for evaporating the fluid, at least one compression device for compressing the fluid, at least one condensation device for condensing the fluid, an accumulation device for accumulating the fluid and a further fluid, which can be added to the fluid by means of the compression device, can be accumulated, and at least one expansion for expanding the fluid. The accumulation device may include a mixing device for mixing the fluid and the further fluid to form an emulsion. A method for operating such a heat engine is also provided.

An apparatus and a method for providing active agent compositions from fluid is provided. The apparatus and method allow providing release agents, mold release agents, or lubricants in various compositions, for example anti-tack agents for compounds for the rubber manufacturing or processing industries. A mixing system for providing active agent compositions from fluid includes a mixing assembly and a control device, the mixing assembly including a conveyor and a plurality of pipe assemblies. The mixing assembly is controlled using the control device.