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IPC entry: F01D 11/20 3-dot subgroup [Version 2024.01 (current), Language EN - English]

Symbol Select IPC entry Title
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONS; TRANSPORTING
C
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CHEMISTRY; METALLURGY
D
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TEXTILES; PAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01
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ENGINES OR PUMPS
F01
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MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01B
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MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES (of rotary-piston or oscillating-piston type F01C; of non-positive-displacement type F01D; combustion engines F02; internal-combustion aspects of reciprocating-piston engines F02B 57/00, F02B 59/00; machines for liquids F03, F04; crankshafts, crossheads, connecting-rods F16C; flywheels F16F; gearings for interconverting rotary motion and reciprocating motion in general F16H; pistons, piston-rods, cylinders, for engines in general F16J)
F01C
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ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B 53/00, F02B 55/00; machines for liquids F03, F04)
F01D
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NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (combustion engines F02; machines or engines for liquids F03, F04; non-positive-displacement pumps F04D)
F01D 1/00
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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) [1, 2006.01]
F01D 3/00
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Machines or engines with axial-thrust balancing effected by working fluid [1, 2006.01]
F01D 5/00
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Blades; Blade-carrying members (nozzle boxes F01D 9/02); Heating, heat-insulating, cooling, or antivibration means on the blades or the members [1, 2006.01]
F01D 7/00
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Rotors with blades adjustable in operation; Control thereof (for reversing F01D 1/30) [1, 2006.01]
F01D 9/00
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Stators [1, 2006.01]
F01D 11/00
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Preventing or minimising internal leakage of working fluid, e.g. between stages (sealings in general F16J) [1, 2006.01]
F01D 11/02
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. by non-contact sealings, e.g. of labyrinth type (for sealing space between rotor blade tips and stator F01D 11/08) [1, 2006.01]
F01D 11/04
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. . using sealing fluid, e.g. steam [1, 2006.01]
F01D 11/06
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. . . Control thereof [1, 2006.01]
F01D 11/08
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. for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D 5/20) [1, 2006.01]
F01D 11/10
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. . using sealing fluid, e.g. steam [1, 2006.01]
F01D 11/12
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. . using a rubstrip, e.g. erodible, deformable or resiliently biased part [6, 2006.01]
F01D 11/14
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. . Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing (rotors with blades adjustable in operation F01D 7/00) [6, 2006.01]
F01D 11/16
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. . . by self-adjusting means (F01D 11/12 takes precedence) [6, 2006.01]
F01D 11/18
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. . . . using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion [6, 2006.01]
F01D 11/20
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. . . Actively adjusting tip-clearance [6, 2006.01]
F01D 11/22
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. . . . by mechanically actuating the stator or rotor components, e.g. moving shroud sections relative to the rotor [6, 2006.01]
F01D 11/24
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. . . . by selectively cooling or heating stator or rotor components [6, 2006.01]
F01D 13/00
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Combinations of two or more machines or engines (F01D 15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H) [1, 2006.01]
F01D 15/00
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Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby [1, 2006.01]
F01D 17/00
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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) [1, 2006.01]
F01D 19/00
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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) [1, 2006.01]
F01D 21/00
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Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for [1, 2006.01]
F01D 23/00
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Non-positive-displacement machines or engines with movement other than pure rotation, e.g. of endless-chain type [1, 2006.01]
F01D 25/00
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Component parts, details, or accessories, not provided for in, or of interest apart from, other groups [1, 2006.01]
F01K
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STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES (gas-turbine or jet-propulsion plants F02; steam generation F22; nuclear power plants, engine arrangements therein G21D)
F01L
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CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01M
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LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING [2]
F01N
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GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K 13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M 35/00; protecting against, or damping, noise in general G10K 11/16)
F01P
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COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K 11/00; heat-transfer, heat-exchange or heat-storage materials C09K 5/00; heat-exchange in general, radiators F28)
F02
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COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F03
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MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F04
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POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F15
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ENGINEERING IN GENERAL
F15
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FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
F16
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ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F17
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STORING OR DISTRIBUTING GASES OR LIQUIDS
F21
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LIGHTING; HEATING
F21
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LIGHTING
F22
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STEAM GENERATION
F23
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COMBUSTION APPARATUS; COMBUSTION PROCESSES
F24
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HEATING; RANGES; VENTILATING
F25
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REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
F26
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DRYING
F27
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FURNACES; KILNS, OVENS OR RETORTS [4]
F28
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HEAT EXCHANGE IN GENERAL
F41
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WEAPONS; BLASTING
F41
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WEAPONS
F42
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AMMUNITION; BLASTING
F99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
G
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PHYSICS
H
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ELECTRICITY

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