FI-MainGroup/Facet-Choice

  • F22B1/00
  • Methods of steam generation characterised by form of heating method HB CC 3L031
  • F22B3/00
  • Other methods of steam generation; Steam boilers not provided for in other groups of this subclass HB CC 3L031
  • F22B5/00
  • Steam boilers of drum type, i.e. without internal furnace or fire tubes, the boiler body being contacted externally by flue gas HB CC 3L032
  • F22B7/00
  • Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body HB CC 3L032
  • F22B9/00
  • Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body HB CC 3L032
  • F22B11/00
  • Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes HB CC 3L032
  • F22B13/00
  • Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body HB CC 3L032
  • F22B15/00
  • Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally HB CC 3L032
  • F22B17/00
  • Water-tube boilers of horizontally-inclined type i.e. the water-tube sets being inclined slightly with respect to the horizontal plane HB CC 3L032
  • F22B19/00
  • Water-tube boilers of combined horizontally-inclined type and vertical type, i.e. water-tube boilers of horizontally-inclined type having auxiliary water-tube sets in vertical or substantially-vertical arrangement HB CC 3L032
  • F22B21/00
  • Water-tube boilers of vertical or steeply-inclined type i.e. the water-tube sets being arranged vertically or substantially vertically HB CC 3L032
  • F22B23/00
  • Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilaterial abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an outer unilaterally-closed tube HB CC 3L032
  • F22B25/00
  • Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes HB CC 3L032
  • F22B27/00
  • Instantaneous or flash steam boilers HB CC 3L032
  • F22B29/00
  • Steam boilers of forced-flow type HB CC 3L032
  • F22B31/00
  • Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus HB CC 3L032
    Steam-generation plants; Control systems
  • F22B33/00
  • Steam-generation plants, e.g. comprising steam boilers of different types in mutual association HB CC 3L032
  • F22B35/00
  • Control systems for steam boilers (for regulating feed-water supply F22D 5/00; for controlling superheat temperature F22G 5/00) HB CC 3L021

  • F22B37/00
  • Component parts or details of steam boilers HB CC 3L033
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