Patent ID: 9376931
Filing Date: 2016-06-28
CPC Classification: F01D,F04D,F05D

Claim Text:
1. A turbomachine passage cleaning system comprising: a first airflow passage having a first inlet configured and disposed to fluidly connect to a compressor portion, a first outlet configured and disposed to fluidly connect to a turbine portion, and a first intermediate portion that extends between the first inlet and the first outlet; a first strainer arranged in the first intermediate portion; a second airflow passage fluidly coupled to the first airflow passage, the second airflow passage having a second inlet arranged upstream of the first inlet, a second outlet arranged downstream of the first outlet, and a second intermediate portion that extends between the second inlet and the second outlet; a second strainer arranged in the second intermediate portion; a first valve arranged in the first intermediate portion upstream from the first strainer and downstream from the first inlet; a second valve arranged in the second intermediate portion upstream from the second strainer and downstream from the second inlet, the first and second valves being selectively operated to control fluid flow into respective ones of the first and second airflow passages to filter air passing from a turbomachine compressor portion to a turbomachine turbine portion; and a steam injection system selectively fluidly coupled to one of the first and second airflow passages through a valve arraged downstream of the first and second strainers, the steam injection system delivering a flow of steam through the one of the first and second airflow passages toward a turbine portion of the turbomachine.