F-Term-List

F15B11/00-11/22@Z;21/14-21/14@Z

AA00
TYPE OF CONTROL; CONTROL CIRCUIT

AA01

AA02

AA03

AA04

AA05

AA06

AA07

AA08

AA09

AA10

. Controlling pressure power or torque

. . of supply pressure

. . . of variable supply pressure continuously

. . . of multistage supply pressure

. . controlling non-load or unloading

. . . stopping pumps or compressors

. . . decreasing the amount of fluids discharged from pumps or compressors

. . . decreasing pressure of pumps or compressors

. . controlling reduced pressure

. . controlling increase of pressure or power

AA12

AA13

AA14

AA16

AA17

AA18

AA20

. . controlling pressure to be constant

. . . Clamp circuits

. . . Balancing circuits

. . changing pressure according to the magnitude of load

. . changing pressure according to the position of actuators

. . changing pressure according to the working direction of actuators

. . feedback-controlling pressure

AA21

AA22

AA23

AA24

AA25

AA27

AA28

AA29

. Controlling flow rates speed or angular speed

. . Metre-in circuits

. . Meter-out circuits

. . Bleed-off circuits

. . combining a plurality of circuits

. . controlling speed to be constant including load-sensing circuits

. . . being constant regardless of temperature changes

. . . being constant regardless of working directions

AA32

AA33

AA34

AA35

. . controlling variable speeds

. . . Differential circuits

. . . changing speed according to the positions of actuators

. . . changing speed according to the magnitude of load

AA42

AA43

AA44

AA45

AA46

AA50

. . controlling acceleration including smooth acceleration

. . controlling deceleration including smooth deceleration

. . controlling slow speed

. . controlling or preventing overspeeding

. . controlling flow rates in multistage way

. . feedback-controlling speed

AA51

AA52

AA53

AA54

AA55

AA56

AA57

AA58

AA59

AA60

. Controlling positions or angles

. . controlling for positioning

. . . using mechanical stoppers

. . . feeding oil at fixed flow rates into the actuators

. . . controlling actuators by inching

. . . in multiple positions

. . . according to magnitude of pressure

. . controlling actuators for locking them to fixed positions

. . . Locking circuits

. Circuits with pilot-controlled valves

AA61

AA62

AA63

AA64

AA65

AA66

AA67

AA68

AA69

AA70

. Controlling directions

. . reciprocating actuators automatically

. . . changing strokes

. Controlling and preventing shocks

. . adjusting drive pressure

. . decreasing rigidity of drive systems

. . adjusting driven flow rates

. . adjusting resistance

. . adjusting drive torque

. . Decompression

AA71

AA72

AA73

AA74

AA75

AA76

AA77

AA78

AA79

AA80

. Control specially adapted for a plurality of actuators

. . Joining circuits

. . Dividing circuits

. . Parallel circuits

. . Series circuits

. . Tandem circuits

. . Sequencing circuits

. . Tuned circuits

. . . to the different directions

. . allowing to change or switch the types of circuits

AA81

AA82

AA83

AA85

AA86

AA87

AA88

AA90

. Controlling power

. . of constant horsepower

. . of maximum horsepower

. Control according to temperature

. Closed circuits

. Combining open circuits and closed circuits

. Circuits combining air and oil

. Others *

BB00
PURPOSE OR EFFECT

BB01

BB02

BB03

BB04

BB05

BB06

BB07

BB08

BB10

. Saving energy

. . decreasing resistance of conduits

. . using potential energy of other actuators

. . Recovering power

. Cushioning

. . at stopping

. . at starting

. . Absorbing or preventing surge pressure

. Improving stability e.g. preventing hunching or pulsations

BB11

BB12

BB13

BB14

BB15

BB16

BB17

BB19

BB20

. Preventing negative pressure or cavitations

. Preventing self-running

. Preventing actuators from jumping

. Improving responses

. Improving operation or work

. Improving reliability or durability

. Improving accuracy of control or improving controllability

. Preventing a plurality of actuators from influencing with each other

. Operating one specific actuator by priority

BB21

BB22

BB23

BB24

BB25

BB26

BB27

BB28

BB30

. Measures against temperature changes

. . against low temperatures

. Measures against foreign matter

. . releasing air

. . removing water or dehumidifying

. Measures against noise

. Reducing size weight or cost; Simplifying

. Measures for safety

. Others *

CC00
ACTUATOR

CC01

CC02

CC03

CC04

CC05

CC06

CC07

CC08

CC09

CC10

. cylindrical

. . dual-rod

. . tandem

. . energising

. . telescopic

. . single acting

. oscillating

. Motors

. . having variable capacity

. . Multiple motors

CC11

CC12

CC13

CC15

CC16

CC17

CC18

CC19

CC20

. Multiple actuators

. . having the same kinds

. . mechanically interconnected

. characterised by shapes or structures

. . coupled with or having built-in control members

. . . having control members being control valves

. having locking or brake means

. . having frictional engagement means

. having cushioning means

DA00
MAIN CIRCUIT ELEMENT (1)

DA01

DA02

DA03

DA04

DA05

DA06

DA07

DA08

. Supply sources *

. . Pumps having fixed capacity

. . Pumps having variable capacity

. . Accumulators

. . Compressors

. . having a plurality of supply sources

. . . having the same kinds of supply sources

. . . . having different capacity

DA12

DA13

DA14

DA15

DA16

DA17

DA18

DA19

DA20

. . Driving means thereof

. . . by engines

. . . by motors

. . . by fluid means

. . . manually

. . . controlling driving means

. . . having energy storing means

. . . . Mechanical means e.g. flywheels

. . . . Electrical means e.g. those for accumulating electricity

DB00
MAIN CIRCUIT ELEMENT (2)

DB01

DB02

DB03

DB04

DB05

DB06

DB07

DB08

DB09

. Control valves *

. . Pressure-control valves

. . . Relief valves

. . . . Crossover relief valves

. . . Reducing valves

. . . Sequence valves

. . . Unload valves

. . . Counter balance valves

. . . . Double counter balance valves

DB12

DB13

DB14

DB15

DB16

DB17

DB18

. . Flow control valves

. . . Throttle valves

. . . Flow regulating valves with pressure compensation means

. . . . with temperature compensation means

. . . Dividing valves

. . . . based on priority

. . . . based on equivalent amount

DB23

DB24

DB25

DB26

DB27

DB28

DB29

. . . having separate pressure-compensation valves

. . . . connected between pumps and flow control valves

. . . . connected between flow control valves and actuators

. . . . connected between flow control valves and tanks

. . . . controlling bypass passages alone

. . . . controlling main passages and bypass passages

. . . . controlling main passages alone

DB32

DB33

DB34

DB35

DB36

DB37

DB38

. . Directional control valves

. . . Check valves

. . . . pilot-controlled

. . . . . specially adapted for prefill valves

. . . Deceleration valves

. . . Shuttle valves

. . . Flushing valves

DB43

DB44

DB45

DB46

DB47

DB48

DB49

DB50

. . . Switching valves

. . . . Two-port types

. . . . Three-port types

. . . . Four-port types

. . . . Multi-port types

. . . . having two positions

. . . . having three positions

. . . . having multiple positions

DB53

DB54

DB55

DB56

DB57

DB58

DB59

DB60

. . . . Types of passages at the neutral positions

. . . . . Closed centre

. . . . . Open centre

. . . . . ABR connections

. . . . . PAR connections

. . . . . PR connections

. . . . . PAB connections

. . . . . having throttles

DB63

DB64

DB65

DB66

DB68

. . . having functions for controlling flow rates including servo valves

. . . having functions for controlling pressure including servo valves

. . . having switching valves composed of a plurality of valves

. . . Valves discharging air rapidly

. . Logic valves or equivalents thereof

DB72

DB73

DB74

DB75

DB76

DB77

DB78

DB79

DB80

. . Types of control valves

. . . Poppet valves

. . . Rotary valves

. . . Spool valves

. . . characterised by shapes or structures

. . . . hollow and cylindrical

. . . . having other built-in valves

. . . . having holes or passages in the valves

. . . characterised by shapes or structures of valve seats

DB82

DB86

DB87

. . with variable settings

. characterised by piping

. . characterised by joints

DC00
MAIN CIRCUIT ELEMENT (3)

DC01

DC02

DC03

DC04

DC05

DC06

DC07

DC08

DC09

DC10

. Other circuit elements *

. . Accumulators other than supply sources

. . Filters

. . Coolers

. . Heaters

. . Intensifiers

. . Converters between air and oil

. . Means for draining or dehumidifying

. . Silencers

. . Lubricators

EE00
ELEMENT OF OPERATION MEANS

EE01

EE02

EE03

EE04

EE05

EE06

EE07

EE08

. Fluid means *

. . having control valves

. . . Pressure-control valves

. . . . Relief valves

. . . . Reducing valves

. . . Flow control valves

. . . . Throttle valves

. . . . . with pressure compensation

EE12

EE13

EE14

EE15

EE16

EE17

EE18

. . . Directional control valves

. . . . Check valves

. . . . Shuttle valves

. . . . Switching valves

. . . . . having two ports and two positions

. . . . . having three ports and two positions

. . . . . having functions for controlling flow rate including servo valves

EE22

EE23

EE24

EE25

EE26

. . having supply sources for pilot pressure

. . . having pilot pressure generated by external loads

. . having accumulators

. . having filters

. . changing settings

EE31

EE32

EE33

EE34

EE35

EE36

EE37

EE38

EE39

EE40

. Electrical or magnetic means *

. . having timers or delay circuits

. . having memory circuits

. . . storing or generating functional relationships

. . having calculation means

. . having computers

. . characterised by driving signals *

. . . Digital signals

. . . PWM signals

. . wireless

EE41

EE42

EE44

. Mechanical means *

. . using cams

. Optical means

FF00
DETECTION OR INDICATION MEANS

FF01

FF02

FF03

FF04

FF05

FF06

FF07

FF08

FF09

FF10

. Objects to be detected or indicated *

. . Working conditions of actuators

. . Positions of actuators

. . Speeds of actuators

. . Operating conditions of control valves

. . Flow rates

. . Pressure

. . . Discharge pressure of pumps

. . . Pilot pressure

. . Number of revolutions or speeds of pumps drive sources or the like

FF11

FF12

FF13

FF14

FF15

FF16

FF17

FF18

FF19

. Detecting means *

. . Electrical or magnetic means

. . . Limit switches or pressure switches

. . . Potentiometers

. . . Rotary encoders

. . Fluid means

. . Mechanical means

. . . using cams

. . Optical means

FF21

FF22

FF23

FF25

. Indicating means *

. . Sounds

. . Vision

. . specially adapted for warning

GG00
DRIVING MEANS

GG01

GG02

GG03

GG04

GG05

GG06

GG07

GG08

GG09

. Fluids *

. . Oil

. . Air including gases

. . . Negative pressure

. Resetting or back-up means

. . Loads e.g. weights or springs

. . Manual operation

. . Electrical or magnetic means

. . Other fluids

HH00
UNIT OF FLUID-PRESSURE CIRCUIT

HH01

HH02

HH03

HH04

HH05

HH06

HH07

HH08

HH09

HH10

. having manifold blocks

. . composed of a plurality of members

. having intermediate blocks or subplates

. having valve blocks

. . having built-in valves

. . having replaceable valves

. . having connected or built-in pumps

. . combined with actuators

. . characterised by arranging or accumulating a plurality of valve blocks

. having endplates

HH11

HH12

HH13

HH14

HH15

HH16

HH17

HH18

HH19

. characterised by means for connecting blocks *

. . with bolts or nuts

. . characterised by engaging parts

. having sealing means between blocks

. characterised by mounting blocks to supports

. characterised by forms or arrangement of passages

. . formed by layering plural members

. . having members for closing passages

. . having means for changing passages

HH21

HH22

HH23

HH25

HH26

HH27

HH29

HH30

. characterised by connecting piping or wiring to blocks

. having wiring in blocks

. characterised by arrangement of block ports

. Materials of blocks *

. Transparent blocks

. Methods for manufacturing blocks

. Unitising apparatus

. Others *

JJ00
USE

JJ01

JJ02

JJ03

JJ04

JJ05

JJ06

JJ07

JJ08

JJ09

JJ10

. Civil-engineering or construction machines

. . Power shovels

. Forging rolling machines e.g. presses

. Die-casting machines

. Injection-moulding machines

. Manipulators or robots

. Cargo conveyers

. . Cranes

. . Forklifts

. . Elevators

JJ11

JJ12

JJ13

JJ14

JJ15

JJ16

JJ17

JJ20

. Aircraft

. Vehicles (Other relevant places take precedence.)

. . Clutches

. . Brakes

. . Power steering

. Ships

. Agricultural machines

. Others *

3H089	FLUID-PRESSURE CIRCUITS (1)
	F15B11/00 -11/22@Z;21/14-21/14@Z