| IPC 7 English version |
| F15-F15B02114 |
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| SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 15 | FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL |
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| F 15 B | SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR (motors, turbines, compressors, blowers, pumps F01 to F04; fluid dynamics F15D; fluid clutches or brakes F16D; fluid springs F16F; fluid gearing F16H; pistons, cylinders, packing F16J; valves, taps, cocks, actuating-floats F16K; safety valves with auxiliary fluid operation of the main valve F16K 17/10; fluid-operating means for valves F16K 31/12; pipes, pipe joints F16L; lubricating F16N) |
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| Note |
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| In this subclass, the following terms are used with the meanings indicated: |
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| – | "telemotor" means a system or device in which a substantially constant amount of fluid is trapped between an input member and an output member to act as a fluid link; |
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| – | "servomotor" means a fluid-pressure actuator, e.g. a piston and cylinder, directly controlled by a valve or other device which is responsive to operation of an initial controlling member; "Servomotor" does not cover a telemotor. The initial controlling member may be adjacent to the servomotor or at a distance, and may be, for example, a hand lever. |
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| Subclass Index |
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| SUPPLYING FLUID UNDER PRESSURE |
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| INTENSIFIERS OR FLUID-PRESSURE CONVERTERS; TRANSDUCERS |
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| FLUID-PRESSURE ACTUATOR SYSTEMS |
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| Telemotors or systems related to the output of a pump |
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| Servomotors |
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| Devices for displacing a member |
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| Combinations of telemotors and servomotors; other systems; details |
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| TESTING; SAFETY |
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1/ | 00 | Installations or systems with accumulators; Supply reservoir or sump assemblies |
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1/ | 02 | . | Installations or systems with accumulators (devices damping pulsations or vibrations in fluids for use in, or in connection with, pipes or pipe systems F16L 55/04) |
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1/ | 027 | . | . | having accumulator charging devices (control of fluid pressure in general G05D 16/00) [6] |
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1/ | 033 | . | . | . | with electrical control means [6] |
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1/ | 04 | . | . | Accumulators (connection of valves to inflatable elastic bodies B60C 29/00) |
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1/ | 08 | . | . | . | using a gas cushion; Gas charging devices; Indicators or floats therefor [6] |
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1/ | 10 | . | . | . | . | with flexible separating means [6] |
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1/ | 12 | . | . | . | . | . | attached at their periphery (F15B 1/16 takes precedence) [6] |
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1/ | 14 | . | . | . | . | . | . | by means of a rigid annular supporting member [6] |
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1/ | 16 | . | . | . | . | . | in the form of a tube [6] |
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1/ | 18 | . | . | . | . | . | Anti-extrusion means [6] |
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1/ | 20 | . | . | . | . | . | . | fixed to the separating means [6] |
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1/ | 22 | . | . | . | . | Liquid port constructions [6] |
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1/ | 24 | . | . | . | . | with rigid separating means, e.g. pistons [6] |
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1/ | 26 | . | Supply reservoir or sump assemblies [6] |
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3/ | 00 | Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids |
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5/ | 00 | Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (F15B 9/00 takes precedence; for measuring or controlling G01, G05) |
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| Fluid-pressure actuator systems (systems peculiar to the control of a particular machine or apparatus covered in a single other class, see the class for such machine or apparatus) |
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| Notes |
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| (1) | This guide heading relates to the moving of members into one or more definite positions by means of fluid pressure. |
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| (2) | Pump, motor, and control features so far as not peculiar to this purpose are classified in the relevant classes. |
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7/ | 00 | Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors |
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7/ | 02 | . | Systems with continuously-operating input and output apparatus |
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7/ | 04 | . | in which the ratio between pump stroke and motor stroke varies with the resistance against the motor (in brake-actuating systems for motor vehicles B60T) |
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7/ | 06 | . | Details (F15B 15/00 takes precedence) |
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7/ | 08 | . | . | Input units; Master units |
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7/ | 10 | . | . | Compensation of the liquid content in a system (F15B 7/08 takes precedence; pressure-maintaining arrangements for brake master cylinders B60T 11/228) [5] |
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9/ | 00 | Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member |
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9/ | 02 | . | with servomotors of the reciprocatable or oscillatable type |
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9/ | 03 | . | . | with electrical control means |
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9/ | 04 | . | . | controlled by varying the output of a pump with variable capacity |
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9/ | 06 | . | . | controlled by means using a fluid jet |
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9/ | 07 | . | . | . | with electrical control means |
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9/ | 08 | . | . | controlled by valves affecting the fluid feed or the fluid outlet of the servomotor (F15B 9/06 takes precedence) |
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9/ | 09 | . | . | . | with electrical control means |
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9/ | 10 | . | . | . | in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage |
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9/ | 12 | . | . | . | in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing |
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9/ | 14 | . | with rotary servomotors |
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9/ | 16 | . | Systems essentially having two or more interacting servomotors |
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9/ | 17 | . | . | with electrical control means |
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11/ | 00 | Servomotor systems without provision for follow-up action (F15B 3/00 takes precedence) |
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11/ | 02 | . | Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member |
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11/ | 024 | . | . | by means of differential connection of the servomotor lines, e.g. regenerative circuits [6] |
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11/ | 028 | . | . | for controlling the actuating force (F15B 11/024 takes precedence) [6] |
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11/ | 032 | . | . | . | by means of fluid-pressure converters (fluid-pressure converters per se F15B 3/00) [6] |
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11/ | 036 | . | . | . | by means of servomotors having a plurality of working chambers (servomotors per se F15B 15/00) [6] |
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11/ | 04 | . | . | for controlling the speed (F15B 11/024 takes precedence) [6] |
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11/ | 042 | . | . | . | by regulating means in feed line (F15B 11/046, F15B 11/05 take precedence) [6] |
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11/ | 044 | . | . | . | by regulating means in return line (F15B 11/046, F15B 11/05 take precedence) [6] |
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11/ | 046 | . | . | . | depending on the position of the working member [6] |
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11/ | 048 | . | . | . | . | with deceleration control [6] |
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11/ | 05 | . | . | . | specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive |
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11/ | 06 | . | involving features specific to the use of a compressible medium, e.g. air, steam |
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11/ | 064 | . | . | with devices for saving the compressible medium [6] |
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11/ | 068 | . | . | with valves for gradually putting pneumatic systems under pressure [6] |
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11/ | 072 | . | . | Combined pneumatic-hydraulic systems [6] |
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11/ | 076 | . | . | . | with pneumatic drive or displacement and speed control or stopping by hydraulic braking [6] |
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11/ | 08 | . | with only one servomotor |
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11/ | 10 | . | . | in which the servomotor position is a function of the pressure |
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11/ | 12 | . | . | providing distinct intermediate positions; with step-by-step action |
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11/ | 13 | . | . | . | using chambers of predetermined volume [6] |
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11/ | 15 | . | . | with special provision for automatic return |
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11/ | 16 | . | with two or more servomotors |
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11/ | 17 | . | . | using two or more pumps [6] |
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11/ | 18 | . | . | used in combination for obtaining stepwise operation of a single controlled member |
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11/ | 20 | . | . | controlling several interacting or sequentially-operating members (fluid distribution or supply devices for the control of two or more servomotors F15B 13/06) |
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11/ | 22 | . | . | Synchronisation of the movement of two or more servomotors |
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13/ | 00 | Details of servomotor systems (F15B 15/00 takes precedence) |
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13/ | 01 | . | Locking-valves or other detent devices (associated with the actuator F15B 15/26) |
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13/ | 02 | . | Fluid distribution or supply devices characterised by their adaptation to the control of servomotors (multiple-way valves F16K 11/00) |
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13/ | 04 | . | . | for use with a single servomotor |
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13/ | 042 | . | . | . | operated by fluid pressure |
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13/ | 043 | . | . | . | . | with electrically-controlled pilot valves |
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13/ | 044 | . | . | . | operated by electrically-controlled means, e.g. solenoids, torque-motors |
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13/ | 06 | . | . | for use with two or more servomotors |
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13/ | 07 | . | . | . | in distinct sequence |
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13/ | 08 | . | . | . | Assemblies of units, each for the control of a single servomotor only |
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13/ | 10 | . | Special arrangements for operating the actuated device without using fluid pressure, e.g. for emergency use |
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13/ | 12 | . | Special measures for increasing the sensitivity of the system |
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13/ | 14 | . | Special measures for giving the operator by sense of touch the immediate response of the actuated device |
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13/ | 16 | . | Special measures for feedback |
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15/ | 00 | Fluid-actuated devices for displacing a member from one position to another (motors for continuous movement F01 to F03); Gearing associated therewith |
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15/ | 02 | . | Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member |
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15/ | 04 | . | . | with oscillating cylinder |
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15/ | 06 | . | . | for mechanically converting rectilinear movement into non-rectilinear movement |
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15/ | 08 | . | characterised by the construction of the motor unit (pistons, cylinders, packing F16J) |
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15/ | 10 | . | . | the motor being of diaphragm type (connection of valves to inflatable elastic bodies B60C 29/00; diaphragms, bellows F16J 3/00) |
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15/ | 12 | . | . | of the oscillating-vane or curved-cylinder type |
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15/ | 14 | . | . | of the straight-cylinder type |
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15/ | 16 | . | . | . | of the telescopic type |
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15/ | 17 | . | . | . | of differential-piston type |
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15/ | 18 | . | Combined units comprising both motor and pump |
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15/ | 19 | . | Pyrotechnical actuators [3] |
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15/ | 20 | . | Other details |
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15/ | 22 | . | . | for accelerating or decelerating the stroke |
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15/ | 24 | . | . | for restricting the stroke |
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15/ | 26 | . | . | Locking mechanisms |
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15/ | 28 | . | . | Means for indicating the position, e.g. end of stroke [4] |
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17/ | 00 | Combinations of telemotor and servomotor systems |
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17/ | 02 | . | in which a telemotor operates the control member of a servomotor |
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18/ | 00 | Parallel arrangements of independent servomotor systems |
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19/ | 00 | Testing fluid-pressure systems or apparatus, so far as not provided for elsewhere |
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20/ | 00 | Safety arrangements; Applications of safety devices (safety devices in general F16P); Emergency measures |
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21/ | 00 | Common features; Fluid-pressure systems, or details thereof, not covered by any preceding group |
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21/ | 02 | . | Servomotor systems with programme control derived from a store or timing device; Control devices therefor |
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21/ | 04 | . | Special measures taken in connection with the properties of the fluid, e.g. for venting, compensating for changes of viscosity, cooling, filtering, preventing churning |
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21/ | 06 | . | Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids |
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21/ | 08 | . | Servomotor systems incorporating electrically- operated control means (F15B 21/02 takes precedence) |
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21/ | 10 | . | Delay devices or arrangements (associated with fluid motors or actuators F15B 15/22) |
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21/ | 12 | . | Fluid oscillators or pulse generators (fluid oscillators predominantly used for computing or control purposes F15C 1/22, F15C 3/16) |
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21/ | 14 | . | Energy-recuperation means (for vehicles B60T 1/10) [6] |
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