| Patent application number | Description | Published |
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| 20080216873 | SYSTEM AND DEVICES FOR COLLECTING AND TREATING WASTE WATER FROM ENGINE WASHING - The present invention relates to the field of washing engines, particularly using washing liquids such as water and detergent or water only, and more specifically to systems, apparatus and a mobile cart comprising such a system for collecting and treating the waste water from engine washing operations. The system comprises a collecting device for collecting waste liquid during a washing operation of the engine and a treatment device for treating waste liquid collected during said washing operation. According to an embodiment, the system is arranged on a mobile cart ( | 09-11-2008 |
| 20090260660 | METHOD AND APPARATUS FOR CLEANING A TURBOFAN GAS TURBINE ENGINE - Device for cleaning a gas turbine engine, and in particular an engine of turbofan type. The present invention further relates to a method for cleaning such an engine. The device comprises a plurality of nozzles arranged to atomize cleaning liquid in the air stream in an air inlet of the engine up-stream of a fan of the engine. According to the invention, a first nozzle is arranged at a position such that the cleaning liquid emanating from the first nozzle impinges the surfaces of the blades substantially on the pressure side; a second nozzle is arrange at a position such that the cleaning liquid emanating from the second nozzle impinges the surfaces of the blades substantially on the suction side; and a third nozzle is arranged at a position such that the cleaning liquid emanating from the third nozzle passes substantially between the blades and enters an inlet of the core engine. Thereby, the different types of fouling found on the fan and in the core engine compressor of turbofan engine can be removed in an efficient manner. | 10-22-2009 |
| 20100132745 | NOZZLE AND METHOD FOR WASHING GAS TURBINE COMPRESSORS - A nozzle for cleaning a gas turbine unit during operation. The invention further relates to a method for washing a gas turbine unit during operation. The nozzle is arranged to atomize a wash liquid in the air stream in an air intake of the gas turbine unit and comprises a nozzle body comprising an intake end for intake of said wash liquid and outlet end for exit of said wash liquid. The nozzle further comprises a number of orifices that are connected to the outlet end and respective orifice is arranged at a suitable distance from a centre axis of said nozzle body, whereby the local density of the injected wash liquid in a desired area can be increased with preserved droplet size and thereby the efficiency of the cleaning process can be significantly improved at the same time as the risk for damaging the components in the gas turbine unit is significantly reduced. | 06-03-2010 |
