IPC Classification

Class code (prefix) Descriptions Number of results
F15B 1/00 Installations or systems with accumulators; Supply reservoir or sump assemblies
F15B 1/02 Installations or systems with accumulators
F15B 1/04 Accumulators
F15B 1/08 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
F15B 1/10 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
F15B 1/12 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
F15B 1/14 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery by means of a rigid annular supporting member
F15B 1/16 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube
F15B 1/18 Anti-extrusion means
F15B 1/20 Anti-extrusion means fixed to the separating means
F15B 1/22 Liquid port constructions
F15B 1/24 Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
F15B 1/26 Supply reservoir or sump assemblies
F15B 1/027 Installations or systems with accumulators having accumulator charging devices
F15B 1/033 Installations or systems with accumulators having accumulator charging devices with electrical control means
F15B 3/00 Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
F15B 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 7/00 Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
F15B 7/02 Systems with continuously-operating input and output apparatus
F15B 7/04 Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors in which the ratio between pump stroke and motor stroke varies with the resistance against the motor
F15B 7/06 Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors - Details
F15B 7/08 Input units; Master units
F15B 7/10 Compensation of the liquid content in a system
F15B 9/00 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member
F15B 9/02 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
F15B 9/03 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type with electrical control means
F15B 9/04 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
F15B 9/06 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by means using a fluid jet
F15B 9/07 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by means using a fluid jet with electrical control means
F15B 9/08 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
F15B 9/09 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor with electrical control means
F15B 9/10 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
F15B 9/12 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor 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
F15B 9/14 Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member with rotary servomotors
F15B 9/16 Systems essentially having two or more interacting servomotors
F15B 9/17 Systems essentially having two or more interacting servomotors with electrical control means
F15B 11/00 Servomotor systems without provision for follow-up action
F15B 11/02 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
F15B 11/04 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed
F15B 11/05 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
F15B 11/06 Servomotor systems without provision for follow-up action involving features specific to the use of a compressible medium, e.g. air, steam
F15B 11/08 Servomotor systems without provision for follow-up action with only one servomotor
F15B 11/10 Servomotor systems without provision for follow-up action with only one servomotor in which the servomotor position is a function of the pressure
F15B 11/12 Servomotor systems without provision for follow-up action with only one servomotor with step-by-step action
F15B 11/13 Servomotor systems without provision for follow-up action with only one servomotor with step-by-step action using chambers of predetermined volume
F15B 11/15 Servomotor systems without provision for follow-up action with only one servomotor with special provision for automatic return
F15B 11/16 Servomotor systems without provision for follow-up action with two or more servomotors
F15B 11/17 Servomotor systems without provision for follow-up action with two or more servomotors using two or more pumps
F15B 11/18 Servomotor systems without provision for follow-up action with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member
F15B 11/20 Servomotor systems without provision for follow-up action with two or more servomotors controlling several interacting or sequentially-operating members
F15B 11/22 Synchronisation of the movement of two or more servomotors
F15B 11/024 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
F15B 11/028 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force
F15B 11/032 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force by means of fluid-pressure converters
F15B 11/036 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
F15B 11/042 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed by means in the feed line
F15B 11/044 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed by means in the return line
F15B 11/046 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed depending on the position of the working member
F15B 11/048 Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed depending on the position of the working member with deceleration control
F15B 11/064 Servomotor systems without provision for follow-up action involving features specific to the use of a compressible medium, e.g. air, steam with devices for saving the compressible medium
F15B 11/068 Servomotor systems without provision for follow-up action involving features specific to the use of a compressible medium, e.g. air, steam with valves for gradually putting pneumatic systems under pressure
F15B 11/072 Combined pneumatic-hydraulic systems
F15B 11/076 Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
F15B 13/00 SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR - Details of servomotor systems
F15B 13/01 Locking-valves or other detent devices
F15B 13/02 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
F15B 13/04 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
F15B 13/06 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
F15B 13/07 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
F15B 13/08 Assemblies of units, each for the control of a single servomotor only
F15B 13/10 Special arrangements for operating the actuated device without using fluid pressure, e.g. for emergency use
F15B 13/12 Special measures for increasing the sensitivity of the system
F15B 13/14 Special measures for giving the operator by sense of touch the immediate response of the actuated device
F15B 13/16 Special measures for feedback
F15B 13/042 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
F15B 13/043 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
F15B 13/044 Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
F15B 15/00 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
F15B 15/02 Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
F15B 15/04 Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member with oscillating cylinder
F15B 15/06 Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
F15B 15/08 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit
F15B 15/10 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type
F15B 15/12 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
F15B 15/14 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/16 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
F15B 15/17 Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
F15B 15/18 Combined units comprising both motor and pump
F15B 15/19 Pyrotechnical actuators
F15B 15/20 Other details
F15B 15/22 Other details for accelerating or decelerating the stroke
F15B 15/24 Other details for restricting the stroke
F15B 15/26 Locking mechanisms
F15B 15/28 Means for indicating the position, e.g. end of stroke
F15B 17/00 Combinations of telemotor and servomotor systems
F15B 17/02 Combinations of telemotor and servomotor systems in which a telemotor operates the control member of a servomotor
F15B 18/00 Parallel arrangements of independent servomotor systems
F15B 19/00 Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
F15B 20/00 Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
F15B 21/00 Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F15B 21/02 Servomotor systems with programme control derived from a store or timing device; Control devices therefor
F15B 21/04 Special measures taken in connection with the properties of the fluid
F15B 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
F15B 21/08 Servomotor systems incorporating electrically- operated control means
F15B 21/10 Delay devices or arrangements
F15B 21/12 Fluid oscillators or pulse generators
F15B 21/14 Energy-recuperation means
F15B 21/041 Removal or measurement of solid or liquid contamination, e.g. filtering
F15B 21/042 Controlling the temperature of the fluid
F15B 21/044 Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
F15B 21/045 Compensating for variations in viscosity or temperature
F15B 21/047 Preventing foaming, churning or cavitation
F15B 21/048 Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
F15B 21/0423 Cooling
F15B 21/0427 Heating