F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES AND 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. Attention is drawn to the notes preceding class F01, especially as regards the definitions of "reaction type" and "impulse type".
  2. The subject-matter of this sub-class comprises:
    1. non-positive-displacement engines for elastic fluids, e.g. steam turbines,
    2. non-positive-displacement engines for liquids and elastic fluids,
    3. non-positive-displacement machines for elastic fluids,
    4. non-positive-displacement machines for liquids and elastic fluids.
 F01D 1/00
Non-positive-displacement machines or engines, e.g. steam turbines (with working-fluid 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 contra-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 G10)
 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; regulating or controlling, see the relevant groups; combinations of two or more pumps F04; fluid gearing F16H)
 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
·  Sensing elements
 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
 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
·  Bearings arrangement or adaptations (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