CN105626570B - A kind of hydrogen turbine pump - Google Patents

A kind of hydrogen turbine pump Download PDF

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Publication number
CN105626570B
CN105626570B CN201410592881.0A CN201410592881A CN105626570B CN 105626570 B CN105626570 B CN 105626570B CN 201410592881 A CN201410592881 A CN 201410592881A CN 105626570 B CN105626570 B CN 105626570B
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China
Prior art keywords
turbine
housing unit
hydrogen
turbine pump
air intake
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CN201410592881.0A
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CN105626570A (en
Inventor
张淑敏
胡丽国
周海平
郝小龙
郭军刚
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China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
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China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
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Abstract

The invention belongs to a kind of turbine pumps, are related to a kind of hydrogen turbine pump, and in particular to a kind of Hydrauservo System energy highly reliable ultrahigh speed hydrogen turbine pump of novel long-range.The device includes housing unit, air intake assembly, shafting component, seal assembly, and air intake assembly is fixed on housing unit side;The rotation of shafting component is fixed on inside housing unit;Seal assembly is fixed on housing unit and shafting component passes through seal assembly.Turbo blade height is relatively low, greatly increases the centrifugation tensile stress of root of blade in the ultrahigh speed course of work;Exhaust recycles, and takes away by the heat exchange of liquid in low temperature hydrogen in spiral exhaust and bearing bore and in time heat, greatly improves hydrogen turbine pump and its stability and reliability using object work.

Description

A kind of hydrogen turbine pump
Technical field
The present invention relates to a kind of hydrogen turbine pumps, and in particular to a kind of Hydrauservo System energy is highly reliable with novel long-range Ultrahigh speed hydrogen turbine pump.
Background technology
The highly reliable ultrahigh speed hydrogen turbine pump of long-range is the core drive element in the Hydrauservo System energy, specific next It says, is exactly that the device utilizes the hydrogen driving turbine drawn in the high pressure hydrogen or gas cylinder drawn in liquid-propellant rocket engine Ultrahigh speed rotates, turbine Driven by Coaxial tangent line impeller of pump, and tangent line impeller of pump sucks the low pressure liquid in servo-drive system, passes through height Fast centrifugal action is thrown away, then coordinates the peripheral jet mouth in servo-drive system or mechanism that the kinetic energy of liquid is converted to pressure Energy.High pressure liquid drives actuator is acted.
Because turbine is in the long-time ultrahigh speed course of work, due to the agitation of bearing and the frictional heat of mechanical dynamic seal, Lubricating cooling oil (namely Hydrauservo System working media) temperature in bearing bore can rise to 200 DEG C or more in a short time, Greatly reduce the stability and reliability (service life of bearing and the service life of mechanical dynamic seal and working environment temperature of turbine pump work Degree relationship is very big, in addition, the operating accuracy of Hydrauservo System and reliability are also related to working media temperature).
Invention content
The technical problem to be solved in the present invention is to provide a kind of hydrogen turbine pump, it is relatively reliable specifically to provide a kind of structure, It is adapted to the hydrogen turbine pump of longer working time.
In order to solve the above technical problems, a kind of hydrogen turbine pump of the present invention, the device include housing unit, air intake assembly, It can be fixed on housing unit side relative to shafting component, the seal assembly that housing unit rotates, air intake assembly, shafting component In housing unit, shafting component passes through seal assembly;It is cased with seal assembly between housing unit and shafting component;Shell Turbine chamber is formed between component and air intake assembly, and bearing bore is formed between housing unit and shafting component.
The side of the housing unit is provided with the spiral exhaust being connected to turbine chamber, and spiral exhaust enters Mouthful be connected to turbine chamber, the end of the spiral exhaust outlet side of housing unit be provided with the threaded hole being connected to bearing bore and Oil outlet.
The spiral exhaust exit is circumferentially provided with graphite grazing slot.
The other side of the housing unit is provided with the threaded hole for installing seal assembly and fixes the soft of soft graphite Property graphite cuvette.
The shafting component includes axis, is cased with the turbine disk successively outside axis, half-turn bearing, neck bush, angular contact ball bearing, cuts Line impeller of pump;Be spaced setting between the turbine disk and double interior half-turn bearings, neck bush with it is double in half-turn bearings, angular contact ball bearing it Between be bonded, be bonded between angular contact ball bearing and tangent line impeller of pump.
The air intake assembly includes turbine lid, inlet suction port, into compression ring, is fixed on turbine into compression ring and covers;Inlet suction port Be fixed on turbine lid with into compression ring.
The turbine is covered into Laval nozzle is equipped on compression ring, and Laval nozzle is located at turbine lid and between compression ring.
The inlet suction port is made of air inlet tube, flange, and the end of air inlet tube is equipped with flange, and graphite is provided on flange Seal groove.
The seal assembly include seal casinghousing, static components, soft graphite compressed spring seal casinghousing it is embedded be cased with it is quiet Ring assemblies, static components are nested with flexible graphite, compressed spring are cased between static components and capsule body.
Sealing ring is equipped between the seal casinghousing and static components.
The beneficial technical effect of the present invention lies in:Relatively low, the turbine pump phase with ad eundem output power of turbo blade height Compare, blade height reduces 25%.The reduction of blade height greatly increases in ultrahigh speed (85000rpm) course of work The centrifugation tensile stress of root of blade, centrifugation tensile stress improve 25% so that and structure is relatively reliable during the work time for turbo blade, It is adapted to the longer working time;Exhaust recycles, and the turbine pump of past structure type is all that the gas after doing work is direct Emptying, the hydrogen turbine pump of this structure type will drive the high-speed low temperature hydrogen after turbine acting to pass through the spiral shell on turbine shroud Rotation shape exhaust passage empties again, and spiral exhaust is wrapped in the outer rim of turbine pump shafting bearing bore;Pass through spiral exhaust The heat exchange of liquid and heat is taken away in time so that hydrogen turbine pump is for a long time in channel in low temperature hydrogen and bearing bore In (600s or more) course of work, working media temperature does not exceed 70 DEG C and (divides the work in the middle part of Hydrauservo System and make in bearing bore Medium can be recycled by hydrogen turbine pump bearing bore, therefore temperature namely working media temperature in bearing bore), thus greatly The stability and reliability that ground is improved hydrogen turbine pump and its worked using object Hydrauservo System.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of hydrogen turbine pump provided by the present invention;
Fig. 2 is the structural schematic diagram of air intake assembly provided by the present invention;
Fig. 3 is the front view of turbine end cap provided by the present invention;
Fig. 4 is the rearview of turbine end cap provided by the present invention;
Fig. 5 is the structural schematic diagram of inlet suction port provided by the present invention;
Fig. 6 is the structural schematic diagram provided by the present invention into compression ring;
Fig. 7 is the left view provided by the present invention into compression ring;
Fig. 8 is the structural schematic diagram of turbine pump shafting component provided by the present invention;
Fig. 9 is the structural schematic diagram of monoblock type turbine rotor provided by the present invention;
Figure 10 is the left view of monoblock type turbine rotor provided by the present invention;
Figure 11 is the structural schematic diagram of rotating ring provided by the present invention;
Figure 12 is the structural schematic diagram of neck bush provided by the present invention;
Figure 13 is the structural schematic diagram of tangent line impeller of pump provided by the present invention;
Figure 14 is the structural schematic diagram of seal assembly provided by the present invention;
Figure 15 is the structural schematic diagram of seal casinghousing provided by the present invention;
Figure 16 is the structural schematic diagram of static components provided by the present invention;
Figure 17 is the structural schematic diagram of guider screw provided by the present invention;
Figure 18 is the structural schematic diagram of compressed spring provided by the present invention;
Figure 19 is the structural schematic diagram of hydrogen turbine pump case component provided by the present invention;
Figure 20 is hydrogen turbine pump case right view provided by the present invention;
Figure 21 is hydrogen turbine pump case left view provided by the present invention;
Figure 22 is the structural schematic diagram of flow-limiting nozzle provided by the present invention;
Figure 23 is the structural schematic diagram of Laval nozzle provided by the present invention
Figure 24 is switching pump head provided by the present invention and peripheral jet mouth structure schematic diagram.
In figure:1 is housing unit, and 2 be air intake assembly, and 3 be seal assembly, and 4 be the turbine disk, and 5 be copper packing, and 6 is stifled for first Head, 7 be graphite-seal ring, and 8 be connection bolt, and 9 be flexible graphite sealing ring, and 10 be rotating ring, and 11 be sealing ring, and 12 be baffle ring, 13 be half-turn bearings in double, and 14 be shafting component, and 15 be copper packing, and 16 be neck bush, and 17 be angular contact ball bearing, and 18 be axis, 19 It is the first adjustment gasket for elastic element, 20,21 be tangent line impeller of pump, and 22 be second adjustment gasket, and 23 be lock-screw, and 24 are Studs, 25 be turbine lid, and 26 be Laval nozzle, and 27 be inlet suction port, and 28 be air inlet tube, and 29 be graphite-seal ring Slot, 30 be flange, and 31 is into compression rings, and 33 be seal casinghousing, and 35 be static components, and 39 be soft graphite, and 40 be guider screw, 41 Compressed spring, 42 be spiral exhaust import, and 43 be spiral exhaust, and 44 export for spiral exhaust, 45 Threaded hole, 46 be outage, and 47 be screw hole, and 48 be soft graphite slot, and 49 be bolt hole, and 50 be bolt hole, and 51 is close for graphite Sealing groove, 52 be flow-limiting nozzle, and 53 be switching pump head, and 54 be the second plug, and 55 be threaded hole, and 56 be peripheral jet mouth, and 57 be turbine Chamber, 58 be bearing bore.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of hydrogen turbine pump of the present invention, which includes housing unit 1, air intake assembly 2, shafting group Part 14, seal assembly 3.Air intake assembly 2 is fixed on 1 side of housing unit;Shafting component 14 is mounted on inside housing unit 1;It is close Sealing assembly 3 is installed between housing unit 1 and shafting component 14, realizes the close of turbine chamber 57 and the bearing bore 58 of housing unit 1 Envelope.
As shown in Fig. 1,2,3,4,5,6,7,23, air intake assembly 2 includes turbine lid 25, inlet suction port 27, into compression ring 31.Whirlpool Laval nozzle 26 there are two being opened on wheel cap 25.It is the semicircle column tube splitted into compression ring 31, turbine lid 25 is welded in into compression ring 31 On lateral wall, and 26 position of Laval nozzle is wrapped up into compression ring 31, is sealed into one end of compression ring 31, into the another of compression ring 31 End and one end of inlet suction port 27 are welded.Inlet suction port 27 is made of air inlet tube 28, the flange 30 being integrally machined, air inlet tube 28 end is equipped with flange 30, graphite grazing slot 29 is circumferentially provided on flange 30, graphite grazing slot 29 is for being tightly connected High-pressure air source.The turbine lid 25 of air intake assembly 2 is fixedly attached to the side wall of housing unit 1 by connection bolt 8, studs 24 On, the junction between air intake assembly 2 and housing unit 1 is sealed by flexible graphite sealing ring 9.2 center of air intake assembly is equipped with One end of the cylindrical drum extended outward, the axis of shafting component 14 is inserted in cylindrical drum inside, the cylindrical drum of air intake assembly 2 It is equipped with plug 6 in outside, is connected through a screw thread between plug 6 and air intake assembly 2, passes through copper packing between plug 6 and air intake assembly 2 5 sealings.
As shown in Fig. 8,9,10,11,12,13, shafting component 14 includes axis 18, the turbine disk 4, rotating ring 10, o type sealing rings 11, double interior half-turn bearings 13, neck bush 16, angular contact ball bearing 17, tangent line impeller of pump 21, adjust pad 20.One end of axis 18 It is outer to be cased with the turbine disk 4 and the unified entirety of the two one, it is monoblock type turbine rotor.The position housing of the neighbouring turbine disk 4 on axis 18 There is rotating ring 10.Half-turn bearing 13 in double is cased on axis 18 outside the position of neighbouring rotating ring 10.Close to double interior half-turn bearings 13 on axis 18 Position outside be cased with neck bush 16.Close to being cased with angular contact ball bearing 17 outside the position of neck bush 16 on axis 18.It is neighbouring on axis 18 Tangent pump impeller 21, and the company of being threadably secured between tangent line impeller of pump 21 and axis 18 are cased with outside 17 position of angular contact ball bearing It connects.By applying screw-down torque by rotating ring 10, o types sealing ring 11, the double interior half-turns on shafting component 14 to tangent line impeller of pump 21 Bearing 13, neck bush 16, angular contact ball bearing 17 are fastened on axis 18.
The blade height of the turbine disk 4 is 8-12mm, between angular contact ball bearing 17 and tangent line impeller of pump 21, rotating ring 10 with it is double It is each provided with the first adjustment gasket 20 between interior half-turn bearing 13, coordinates for transition between neck bush 16 and axis 18.Shafting component 14 in operation process, by adjusting the first adjustment gasket 20 between rotating ring 10 and double interior half-turn bearings 13 and then adjusts rotating ring Decrement between 10 and static components 35;By adjusting the first adjustment among angular contact ball bearing 17 and tangent line impeller of pump 21 Gap between gasket 20 and then adjustment tangent line impeller of pump 21 and housing unit 1.Shafting component 14 by double interior half-turn bearings 13, Angular contact ball bearing 17 supports, and is installed in housing unit 1.Shafting component 14 passes through 19 diagonal contact ball bearing of elastic element 17 outer ring applies axial pre tightening force, and the outer ring of double interior half-turn bearings 13 limits by adjusting baffle ring 12, adjusts baffle ring 12 and shell Body component 1 coordinates for transition, and adjustment baffle ring 12 limits it by seal assembly 3, and seal assembly 3 is fixed by lock-screw 23 Onto housing unit 1.It is bearing bore 58, the shell of 58 lower part of bearing bore among double interior half-turn bearings 13, angular contact ball bearing 17 There is hole when needed to install speed probe on component 1, when need not measure rotating speed, which passes through the second plug 54, copper Pad 15 seals, and connection is threadably secured between the second plug 54 and housing unit 1.
As shown in Figure 14,15,16,17,18, seal assembly 3 divides the lubricating fluid of bearing bore 58 and the gas of turbine chamber 57 It opens.Seal assembly 3 includes seal casinghousing 33, static components 35, soft graphite 39, compressed spring 41 and O-ring seals 11.Sealing Shell 33 is embedded to be cased with static components 35, and static components 35 are nested with flexible graphite 39, static components 35 and capsule body 33 it Between be cased with compressed spring 41.Static components 35 provide pressing force by the compressed spring 41 being positioned in seal casinghousing 33 to it, By guider screw 40 realize can only be axially movable between static components 35 and seal casinghousing 33 by circular motion cannot occur. 33 inner circumferential of seal casinghousing is equipped with the seal groove for installing O-ring seals 11 with 35 contact position of static components, to pacify O-ring seals 11 are filled, 33 external circumferential of seal casinghousing is equipped with for installing 11 seal groove of O-ring seals.
As shown in Figure 19,20,21,22, there is coaxial cylindrical hole among housing unit 1, is the placement position of shafting component 14 It sets;Right side is turbine chamber 57, is the operating position of the turbine disk 4.The side of housing unit 1 is provided with spiral exhaust 43, spiral shell The spiral exhaust entrance 42 of rotation shape exhaust passage 43 is connected with turbine chamber 57, and spiral exhaust outlet 42 is opposite 180 ° of spirals occur in spiral exhaust entrance 44 to curve, spiral exhaust outlet 44 is pumped with servo mechanism or switching First 53 connector docking, spiral exhaust export and are circumferentially provided with graphite grazing slot 51 at 44.Housing unit 1 closes on spiral The end of 43 side of shape exhaust passage is provided with threaded hole 45 and oil outlet 46, and flow-limiting nozzle 52, flow-limiting nozzle 52 are installed in threaded hole 45 The through-hole at center is connected to by circular hole with bearing bore 58, and low pressure oil is entered by the through-hole at 52 center of flow-limiting nozzle in bearing bore 58, Realize the lubrication to bearing bore 58;Low pressure oil is discharged by outage 46 from bearing bore 58.The other side of housing unit 1 It is provided with the soft graphite slot 48 of the threaded hole 47 and fixed soft graphite 39 for installing seal assembly 3.Housing unit 1 passes through spiral shell Keyhole 50, connection bolt 8 realize the connection between housing unit 1 and air intake assembly 2, and hydrogen turbine pump is realized by bolt hole 49 With the connection of the threaded hole 55 of the switching pump head 53 of servo mechanism, the company with mechanical dynamic seal component 3 is realized by screw hole 47 It connects, the installation of sealed graphite 39 between mechanical dynamic seal and housing unit 1 is realized by soft graphite slot 48.
A kind of hydrogen turbine pump course of work provided by the present invention:The air inlet tube 28 of air intake assembly 2 by pipeline with High-pressure air source is connected to, and the flange 30, graphite grazing slot 29 on the air inlet tube 28 of air intake assembly 2 realize the connection to high-pressure air source And sealing.High pressure hydrogen, which enters Laval nozzle 26 by the air inlet tube 28 of air intake assembly 2, into compression ring 31 and expands, to be added Speed impacts in the turbine disk 4 on the blade of the turbine disk, drives 4 high speed rotation of the turbine disk.Low temperature hydrogen after acting passes through shell The part helix for the shafting component 14 that spiral exhaust 43 on component 1 is installed in housing unit 1 flows and takes away heat Amount, since 180 ° of turn, i.e. spiral shape has occurred relative to spiral shell shape exhaust passage import 42 in spiral exhaust outlet 44 Exhaust passage 43 helical flow of installation axle module 14 and takes away heat in housing unit 1, improves shafting component 14 Operating ambient temperature.Spiral exhaust outlet 44 is docked with the threaded hole of servo mechanism switching pump head 53, and by spiral shell Flexible graphite sealing ring 7 is placed in the circumferential graphite grazing slot 51 of shape Vent passageway 44 to external seal.Spiral exhaust is logical The hydrogen of 44 discharge of road outlet will be located at switching pump head by 4 Driven by Coaxial tangent line impeller of pump 21 of the turbine disk, tangent line impeller of pump 21 After the acting supercharging of 53 intracavitary low pressure oils, pass through the actuator of the output of peripheral jet mouth 56 to servo mechanism;When supercharging, pump head of transferring 45 pressure of 53 connections increase, and low pressure oil flows into bearing bore, and flows to other pipelines by 46.

Claims (9)

1. a kind of hydrogen turbine pump, it is characterised in that:The device include housing unit (1), air intake assembly (2), can be with respect to shell Shafting component (14), the seal assembly (3) of body component (1) rotation, air intake assembly (2) are fixed on housing unit (1) side, shafting Component (14) is mounted in housing unit (1), and shafting component (14) passes through seal assembly (3);Housing unit (1) and shafting component (14) seal assembly (3) is cased between;Turbine chamber (57), housing unit are formed between housing unit (1) and air intake assembly (2) (1) bearing bore (58) is formed between shafting component (14);
The side of the housing unit (1) is provided with the spiral exhaust (43) being connected to turbine chamber (57), spiral shape row Gas channel (43) entrance is connected to turbine chamber (57), and the end of spiral exhaust (43) outlet side of housing unit (1) is opened There are the threaded hole (45) being connected to bearing bore (58) and oil outlet (46).
2. a kind of hydrogen turbine pump according to claim 1, it is characterised in that:The spiral exhaust (43) goes out It is circumferential at mouthful to be provided with graphite grazing slot (51).
3. a kind of hydrogen turbine pump according to claim 2, it is characterised in that:The other side of the housing unit (1) It is provided with the soft graphite slot (48) of the threaded hole (47) and fixed soft graphite (39) for installing seal assembly (3).
4. a kind of hydrogen turbine pump according to any one of claim 1 to 3, it is characterised in that:The shafting component (14) include axis (18), axis (18) is cased with the turbine disk (4), half-turn bearing (13), neck bush (16), angular contact ball bearing successively outside (17), tangent line impeller of pump (21);The turbine disk (4) and it is double in be spaced between half-turn bearing (13) and be arranged, neck bush (16) with it is double in Half-turn bearing (13), angular contact ball bearing are bonded between (17), between angular contact ball bearing (17) and tangent line impeller of pump (21) Fitting.
5. a kind of hydrogen turbine pump according to claim 4, it is characterised in that:The air intake assembly (2) includes turbine lid (25), inlet suction port (27), into compression ring (31), be fixed on turbine lid (25) into compression ring (31);Inlet suction port (27) is fixed on Turbine lid (25) with into compression ring (31).
6. a kind of hydrogen turbine pump according to claim 5, it is characterised in that:The turbine lid (25) is into compression ring (31) It is equipped with Laval nozzle (26), Laval nozzle (26) is located at turbine lid (25) and between compression ring (31).
7. a kind of hydrogen turbine pump according to claim 6, it is characterised in that:The inlet suction port (27) is by air inlet tube (28), flange (30) forms, and the end of air inlet tube (28) is equipped with flange (30), and flange is provided with graphite grazing slot on (30) (29)。
8. a kind of hydrogen turbine pump according to claim 7, it is characterised in that:The seal assembly (3) includes capsul Body (33), static components (35), soft graphite (39) compressed spring (41) seal casinghousing (33) are embedded to be cased with static components (35), Static components (35) are nested with flexible graphite (39), and compressed spring is cased between static components (35) and capsule body (33) (41)。
9. a kind of hydrogen turbine pump according to claim 8, it is characterised in that:The seal casinghousing (33) and static components (35) sealing ring (11) is equipped between.
CN201410592881.0A 2014-10-29 2014-10-29 A kind of hydrogen turbine pump Active CN105626570B (en)

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CN105626570B true CN105626570B (en) 2018-08-21

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CN108019293B (en) * 2016-10-31 2020-07-28 北京精密机电控制设备研究所 Multistage reentrant formula turbine
CN108005912A (en) * 2016-10-31 2018-05-08 北京精密机电控制设备研究所 A kind of high back pressure big flow highway turbine pump
CN107939722B (en) * 2017-11-30 2024-02-09 北京航天动力研究所 Spring-loaded automatic release type dynamic sealing device for oxyhydrogen engine turbopump
CN108120043A (en) * 2018-01-23 2018-06-05 河南理工大学 A kind of air vacuum spray penetration refrigerating plant and its method for realizing deep refrigerating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132594A (en) * 1961-07-12 1964-05-12 Thompson Ramo Wooldridge Inc Liquid hydrogen turbopump
US3307359A (en) * 1963-06-26 1967-03-07 North American Aviation Inc Turbopump assembly
US5403165A (en) * 1992-11-30 1995-04-04 Societe Europeenne De Propulsion Compact high power turbopump for a rocket engine
RU2526996C1 (en) * 2013-02-20 2014-08-27 Открытое акционерное общество "Конструкторское бюро химавтоматики" Solid-propellant rocket engine turbopump unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132594A (en) * 1961-07-12 1964-05-12 Thompson Ramo Wooldridge Inc Liquid hydrogen turbopump
US3307359A (en) * 1963-06-26 1967-03-07 North American Aviation Inc Turbopump assembly
US5403165A (en) * 1992-11-30 1995-04-04 Societe Europeenne De Propulsion Compact high power turbopump for a rocket engine
RU2526996C1 (en) * 2013-02-20 2014-08-27 Открытое акционерное общество "Конструкторское бюро химавтоматики" Solid-propellant rocket engine turbopump unit

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