Abstract: A fluid transfer system for transferring fluid from a reservoir to a receiving device having a through flow device adapted to receive fluid from the reservoir and transfer fluid through the system or measure the amount of fluid being transferred from the reservoir to the receiving device, a controllable shut-off valve arranged upstream of the receiving device, and a controlling unit that controls at least the state of the shut-off valve. The present invention relates in particular to a fluid transfer system and methods of transferring fluid from a reservoir to a receiving device and controlling the state of the state of the shut-off valve so that the pressure of fluid being fed to the receiving device is above a first pre-selected pressure limit (Pmin) so that the delivered amount corresponds to a demand.

Abstract: The present invention provides a mixing device (1) for mixing urea with a gas, said urea being preferably dissolved in a fluid preferably water and said gas being preferably air. The mixing device comprises preferably a urea inlet (10) and a gas inlet (12) for feeding respectively urea and the gas into a mixing chamber (20) of the mixing device (4), and an outlet (14) for outlet of the mix of urea and gas from the mixing chamber (20), these inlets (10,12) and outlet (14) may preferably have a stream wise extension and runs preferably into the mixing chamber (20) and the outlet (14) originates preferably from the mixing chamber (20). Preferably, at least the gas inlet (12) for feeding air into the mixing chamber is designed so that depositing of urea crystals on selected surfaces of the said inlet is substantially (typically in the sense that deposited crystals does not clog the inlet) or totally avoided.

Abstract: The present invention relates to the field of atomizing fluids. Some embodiments described herein relate to a nozzle for atomization of one fluid in an exhaust system of a combustion engine or gas turbine, the nozzle comprising an inlet and two or more outlets, arranged so that fluid streams discharged from the two or more outlets impinge at a distance from the two or more outlets so that the fluid streams discharged from at least two of the two or more outlets impinge each other at a specified angle in the range of 70° to 95° so as to provide a spray by atomization of the fluid. The fluid streams may e.g. have a cross section in the order of 0.005 to 0.05 mm2 before impingement.

Abstract: The present invention relates to a fluid transfer system and method for transferring fluid from a reservoir (2) and to (a) delivery device typically being (a) nozzle. The present invention relates in particular to transferring urea in highly accurate metered amounts from a reservoir (2) to a nozzle (5) arranged within an exhaust system (4) of a combustion engine (1) or combustion engines.

Abstract: The present invention relates to a nozzle for atomization of one or more fluids by letting two streams of fluid impinge. In a nozzle according to the invention the fluid is divided in a number of streams each given kinetic energy. The amount of kinetic energy given to streams is so that when the streams impinge at conditions where substantial opposite directed velocity components of the streams exist the streams will break up into a spray having a small droplet size.