F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01D
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D25/00
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
F01D25/08
Cooling; Heating; Heat-insulation