F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES OR PUMPS
 F01
MACHINES OR ENGINES IN GENERAL (combustion engines F02; machines for liquids F03, F04); ENGINE PLANTS IN GENERAL; STEAM ENGINES
 F01D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
 F01D

Note(s)

  1. This subclass covers:
    • non-positive-displacement engines for elastic fluids, e.g. steam turbines;
    • non-positive-displacement engines for liquids and elastic fluids;
    • non-positive-displacement machines for elastic fluids;
    • non-positive-displacement machines for liquids and elastic fluids.
  2. Attention is drawn to the Notes preceding class F01, especially as regards the definitions of "reaction type" and "impulse type".
 F01D 1/00
Non-positive-displacement machines or engines, e.g. steam turbines (with working-fluid flows in opposite axial directions for balancing axial thrust F01D 3/02; with other than pure rotation F01D 23/00; turbines characterised by their use in special steam systems, cycles, or processes, regulating devices therefor F01K)
 F01D 1/02
·  with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines (of reaction type F01D 1/18)
 F01D 1/04
·  ·  traversed by the fluid substantially axially
 F01D 1/06
·  ·  traversed by the fluid substantially radially
 F01D 1/08
·  ·  ·  having inward flow
 F01D 1/10
·  ·  having two or more stages subjected to working-fluid flow without essential intermediate pressure change, i.e. with velocity stages (F01D 1/12 takes precedence)
 F01D 1/12
·  ·  with repeated action on same blade ring
 F01D 1/14
·  ·  ·  traversed by the fluid substantially radially
 F01D 1/16
·  ·  characterised by having both reaction stages and impulse stages
 F01D 1/18
·  of reaction type (with pressure/velocity transformation exclusively in rotor F01D 1/32)
 F01D 1/20
·  ·  traversed by the fluid substantially axially
 F01D 1/22
·  ·  traversed by the fluid substantially radially
 F01D 1/24
·  characterised by counter-rotating rotors subjected to same working-fluid stream without intermediate stator blades or the like
 F01D 1/26
·  ·  traversed by the fluid substantially axially
 F01D 1/28
·  ·  traversed by the fluid substantially radially
 F01D 1/30
·  characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of blades (combinations of machines or engines F01D 13/00)
 F01D 1/32
·  with pressure/velocity transformation exclusively in rotor
 F01D 1/34
·  characterised by non-bladed rotor, e.g. with drilled holes (sirens G10K 7/00)
 F01D 1/36
·  ·  using fluid friction
 F01D 3/00
Machines or engines with axial-thrust balancing effected by working fluid
 F01D 3/02
·  characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
 F01D 3/04
·  axial thrust being compensated by thrust-balancing dummy piston or the like
 F01D 5/00
Blades; Blade-carrying members (nozzle boxes F01D 9/02); Heating, heat-insulating, cooling, or antivibration means on the blades or the members
 F01D 5/02
·  Blade-carrying members, e.g. rotors (rotors of non-bladed type F01D 1/34; stators F01D 9/00)
 F01D 5/04
·  ·  for radial-flow machines or engines
 F01D 5/06
·  ·  Rotors for more than one axial stage, e.g. of drum or multiple-disc type; Details thereof, e.g. shafts, shaft connections
 F01D 5/08
·  ·  Heating, heat-insulating, or cooling means
 F01D 5/10
·  ·  Antivibration means
 F01D 5/12
·  Blades (blade roots F01D 5/30; rotors with blades adjustable in operation F01D 7/00; stator blades F01D 9/02)
 F01D 5/14
·  ·  Form or construction (selecting particular materials, measures against erosion or corrosion F01D 5/28)
 F01D 5/16
·  ·  ·  for counteracting blade vibration
 F01D 5/18
·  ·  ·  Hollow blades; Heating, heat-insulating, or cooling means on blades
 F01D 5/20
·  ·  ·  Specially-shaped blade tips to seal space between tips and stator
 F01D 5/22
·  ·  Blade-to-blade connections, e.g. by shrouding
 F01D 5/24
·  ·  ·  using wire or the like
 F01D 5/26
·  ·  Antivibration means not restricted to blade form or construction or to blade-to-blade connections
 F01D 5/28
·  ·  Selecting particular materials; Measures against erosion or corrosion
 F01D 5/30
·  Fixing blades to rotors; Blade roots
 F01D 5/32
·  ·  Locking, e.g. by final locking-blades or keys
 F01D 5/34
·  Rotor-blade aggregates of unitary construction
 F01D 7/00
Rotors with blades adjustable in operation; Control thereof (for reversing F01D 1/30)
 F01D 7/02
·  having adjustment responsive to speed
 F01D 9/00
Stators (non-fluid guiding aspects of casings, regulating, controlling, or safety aspects, see the relevant groups)
 F01D 9/02
·  Nozzles; Nozzle boxes; Stator blades; Guide conduits
 F01D 9/04
·  ·  forming ring or sector
 F01D 9/06
·  Fluid supply conduits to nozzles or the like
 F01D 11/00
Preventing or minimising internal leakage of working fluid, e.g. between stages (sealings in general F16J)
 F01D 11/02
·  by non-contact sealings, e.g. of labyrinth type (for sealing space between rotor blade tips and stator F01D 11/08)
 F01D 11/04
·  ·  using sealing fluid, e.g. steam
 F01D 11/06
·  ·  ·  Control thereof
 F01D 11/08
·  for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D 5/20)
 F01D 11/10
·  ·  using sealing fluid, e.g. steam
 F01D 13/00
Combinations of two or more machines or engines (F01D 15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H; regulating or controlling, see the relevant groups)
 F01D 13/02
·  Working-fluid interconnection of machines or engines
 F01D 15/00
Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby (regulating or controlling, see the relevant groups; aspects predominantly concerning driven devices, see the relevant classes for the devices)
 F01D 15/02
·  Adaptations for driving vehicles, e.g. locomotives (arrangement in vehicles, see the relevant vehicle classes)
 F01D 15/04
·  ·  the vehicles being waterborne vessels
 F01D 15/06
·  Adaptations for driving, or combinations with, hand-held tools or the like
 F01D 15/08
·  Adaptations for driving, or combinations with, pumps
 F01D 15/10
·  Adaptations for driving, or combinations with, electric generators
 F01D 15/12
·  Combinations with mechanical gearing (driven by multiple engines F01D 13/00)
 F01D 17/00
Regulating or controlling by varying flow (for reversing F01D 1/30; by varying rotor blade position F01D 7/00; specially for starting F01D 19/00; shutting-down F01D 21/00; regulating or controlling in general G05)
 F01D 17/02
·  Arrangement of sensing elements (sensing elements per se, see the relevant subclasses)
 F01D 17/04
·  ·  responsive to load
 F01D 17/06
·  ·  responsive to speed
 F01D 17/08
·  ·  responsive to condition of working fluid, e.g. pressure
 F01D 17/10
·  Final actuators (valves in general F16K)
 F01D 17/12
·  ·  arranged in stator parts
 F01D 17/14
·  ·  ·  varying effective cross-sectional area of nozzles or guide conduits
 F01D 17/16
·  ·  ·  ·  by means of nozzle vanes
 F01D 17/18
·  ·  ·  varying effective number of nozzles or guide conduits
 F01D 17/20
·  Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted (sensing elements alone F01D 17/02; final actuators alone F01D 17/10)
 F01D 17/22
·  ·  the operation or power assistance being predominantly non-mechanical
 F01D 17/24
·  ·  ·  electrical
 F01D 17/26
·  ·  ·  fluid, e.g. hydraulic
 F01D 19/00
Starting of machines or engines; Regulating, controlling, or safety means in connection therewith (warming-up before starting F01D 25/10; turning or inching gear F01D 25/34)
 F01D 19/02
·  dependent on temperature of component parts, e.g. of turbine casing
 F01D 21/00
Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
 F01D 21/02
·  Shutting-down responsive to overspeed
 F01D 21/04
·  responsive to undesired position of rotor relative to stator, e.g. indicating such position
 F01D 21/06
·  ·  Shutting-down
 F01D 21/08
·  ·  Restoring position
 F01D 21/10
·  responsive to unwanted deposits on blades, in working-fluid conduits, or the like
 F01D 21/12
·  responsive to temperature
 F01D 21/14
·  responsive to other specific conditions
 F01D 21/16
·  Trip gear
 F01D 21/18
·  ·  involving hydraulic means
 F01D 21/20
·  Checking operation of shut-down devices
 F01D 23/00
Non-positive-displacement machines or engines with movement other than pure rotation, e.g. of endless-chain type
 F01D 25/00
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
 F01D 25/02
·  De-icing means for engines having icing phenomena
 F01D 25/04
·  Antivibration arrangements
 F01D 25/06
·  ·  for preventing blade vibration (means on blade-carrying members or blades F01D 5/00)
 F01D 25/08
·  Cooling (of machines or engines in general F01P); Heating; Heat insulation (of blade-carrying members, of blades F01D 5/00)
 F01D 25/10
·  ·  Heating, e.g. warming-up before starting
 F01D 25/12
·  ·  Cooling
 F01D 25/14
·  ·  Casings modified therefor (double casings F01D 25/26)
 F01D 25/16
·  Arrangement of bearings; Supporting or mounting bearings in casings (bearings per se F16C)
 F01D 25/18
·  Lubricating arrangements (of machines or engines in general F01M)
 F01D 25/20
·  ·  using lubrication pumps
 F01D 25/22
·  ·  using working fluid or other gaseous fluid as lubricant
 F01D 25/24
·  Casings (modified for heating or cooling F01D 25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M)
 F01D 25/26
·  ·  Double casings; Measures against temperature strain in casings
 F01D 25/28
·  Supporting or mounting arrangements, e.g. for turbine casing
 F01D 25/30
·  Exhaust heads, chambers, or the like
 F01D 25/32
·  Collecting of condensation water; Drainage
 F01D 25/34
·  Turning or inching gear
 F01D 25/36
·  ·  using electric motors