CN105626570A - Hydrogen turbine pump - Google Patents
Hydrogen turbine pump Download PDFInfo
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- CN105626570A CN105626570A CN201410592881.0A CN201410592881A CN105626570A CN 105626570 A CN105626570 A CN 105626570A CN 201410592881 A CN201410592881 A CN 201410592881A CN 105626570 A CN105626570 A CN 105626570A
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- turbine
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- hydrogen
- turbine pump
- air inlet
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Abstract
The invention belongs to a turbine pump, and relates to a hydrogen turbine pump, in particular to a novel long-stroke high-reliability ultra-high-speed hydrogen turbine pump for energy resources of a hydraulic servo system. The hydrogen turbine pump comprises a shell assembly, an air inlet assembly, a shaft assembly and a sealing assembly, and the air inlet assembly is fixed to one side of the shell assembly; the shaft assembly is rotationally fixed into the shell assembly; and the sealing assembly is fixed to the shell assembly, and the shaft assembly penetrates the sealing assembly. The height of turbine blades is smaller, and the centrifuge tensile stress of roots of the blades is greatly improved in the ultra-high-speed working process; and exhausted gas is reutilized, heat is brought away in time through low-temperature hydrogen in a spiral exhaust duct and heat exchange of liquid in a bearing cavity, and the working stability and the working reliability of the hydrogen turbine pump and a using object of the hydrogen turbine pump are greatly improved.
Description
Technical field
The present invention relates to a kind of hydrogen turbine pump, be specifically related to a kind of highly reliable ultrahigh speed hydrogen turbine pump of the novel long-range of the Hydrauservo System energy.
Background technology
The highly reliable ultrahigh speed hydrogen turbine pump of long-range is the core drive element in the Hydrauservo System energy, specifically, it is exactly that this device utilizes the hydrogen drawn in the high pressure hydrogen or gas cylinder drawn in liquid-propellant rocket engine to drive turbine ultrahigh speed to rotate, turbine Driven by Coaxial tangent pump impeller, low pressure liquid in servosystem is sucked by tangent pump impeller, thrown away by high speed centrifugation effect, then coordinate the peripheral jet mouth in servosystem or mechanism that the kinetic energy of liquid is converted to pressure energy. High pressure liquid drives actuator carries out action.
Because turbine is in long-time ultrahigh speed work process, frictional heat due to the stirring of bearing and mechanical dynamic seal, lubricating cooling oil (namely Hydrauservo System working media) temperature in bearing bore can rise to more than 200 DEG C at short notice, (life-span of bearing and the life-span of mechanical dynamic seal are very big with operating ambient temperature relation to greatly reduce the stability of turbine pump work and reliability, additionally, the operating accuracy of Hydrauservo System and reliability also with working media temperature correlation).
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydrogen turbine pump, and a kind of structure of concrete offer is relatively reliable, it is possible to adapt to the hydrogen turbine pump of longer working time.
For solving above-mentioned technical problem, one hydrogen turbine pump of the present invention, this device includes housing unit, air intake assembly, the axle module that can rotate relative to housing unit, black box, air intake assembly is fixed on housing unit side, axle module be arranged in housing unit, axle module is through black box; It is cased with black box between housing unit and axle module; Form turbine chamber between housing unit and air intake assembly, between housing unit and axle module, form bearing bore.
The side of described housing unit has the spiral exhaust connected with turbine chamber, and spiral exhaust entrance connects with turbine chamber, and the end of the spiral exhaust outlet side of housing unit has the screwed hole and oil outlet that connect with bearing bore.
Described spiral exhaust exit circumference has graphite grazing groove.
The opposite side of described housing unit has the soft graphite groove of the screwed hole for installing black box and fixing flexible graphite.
Described axle module includes axle, is cased with the turbine disk, half-turn bearing, neck bush, angular contact ball bearing, tangent pump impeller outside axle successively; Between the turbine disk and double; two interior half-turn bearing, interval is arranged, and all fits between neck bush and double; two interior half-turn bearing, angular contact ball bearing, fits between angular contact ball bearing and tangent pump impeller.
Described air intake assembly includes turbine lid, inlet suction port, air inlet ring, and air inlet ring is fixed on turbine lid; Inlet suction port is fixed on turbine lid and air inlet ring.
Described turbine covers and is provided with Laval nozzle on air inlet ring, and Laval nozzle is between turbine lid and air inlet ring.
Described inlet suction port is made up of air inlet tube, flange, and the end of air inlet tube is provided with flange, and flange has graphite grazing groove.
Described black box includes seal casinghousing, static components, the soft graphite compression embedded static components that is cased with of spring sealed housing, the embedded soft graphite that is cased with of static components, is cased with compression spring between static components and capsule body.
It is provided with sealing ring between described seal casinghousing and static components.
The Advantageous Effects of the present invention is in that: turbo blade height is relatively low, and compared with the turbine pump of ad eundem output, blade height reduces 25%. The reduction of blade height greatly increases the centrifugal tension of ultrahigh speed (85000rpm) work process Leaf root, centrifugal tension improves 25%, make turbo blade structure in the course of the work relatively reliable, it is possible to adapt to the longer working time; Aerofluxus recycles, the turbine pump of past version, be all by acting after gas directly empty, the hydrogen turbine pump of this version, being emptied by the spiral exhaust on turbine shroud by high-speed low temperature hydrogen after driving turbine acting, spiral exhaust is wrapped in the outer rim of turbine pump shaft system bearing bore again; By low temperature hydrogen in spiral exhaust and in bearing bore liquid heat exchange and take away heat in time, make hydrogen turbine pump in long-time (more than 600s) work process, in bearing bore, (in Hydrauservo System, part working media can be circulated working media temperature through hydrogen turbine pump bearing bore not over 70 DEG C, therefore temperature namely working media temperature in bearing bore), thus drastically increase hydrogen turbine pump and use stability and the reliability of the work of object Hydrauservo System.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydrogen turbine pump provided by the present invention;
Fig. 2 is the structural representation 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 representation of inlet suction port provided by the present invention;
Fig. 6 is the structural representation of air inlet ring provided by the present invention;
Fig. 7 is the left view of air inlet ring provided by the present invention;
Fig. 8 is the structural representation of turbine pump shaft module provided by the present invention;
Fig. 9 is the structural representation 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 representation of rotating ring provided by the present invention;
Figure 12 is the structural representation of neck bush provided by the present invention;
Figure 13 is the structural representation of tangent pump impeller provided by the present invention;
Figure 14 is the structural representation of black box provided by the present invention;
Figure 15 is the structural representation of seal casinghousing provided by the present invention;
Figure 16 is the structural representation of static components provided by the present invention;
Figure 17 is the structural representation of guider screw provided by the present invention;
Figure 18 is the structural representation of compression spring provided by the present invention;
Figure 19 is the structural representation of hydrogen turbine pump housing unit provided by the present invention;
Figure 20 is hydrogen turbine pump housing right view provided by the present invention;
Figure 21 is hydrogen turbine pump housing left view provided by the present invention;
Figure 22 is the structural representation of flow-limiting nozzle provided by the present invention;
Figure 23 is the structural representation 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, 2 is air intake assembly, 3 is black box, 4 is the turbine disk, 5 is copper packing, 6 is the first plug, 7 is graphite-seal ring, 8 is connecting bolt, 9 is flexible graphite sealing ring, 10 is rotating ring, 11 is sealing ring, 12 is baffle ring, 13 is double, two interior half-turn bearings, 14 is axle module, 15 is copper packing, 16 is neck bush, 17 is angular contact ball bearing, 18 is axle, 19 is flexible member, 20 is the first adjustment pad, 21 is tangent pump impeller, 22 is the second adjustment pad, 23 is lock-screw, 24 is studs, 25 is turbine lid, 26 is Laval nozzle, 27 is inlet suction port, 28 is air inlet tube, 29 is graphite grazing annular groove, 30 is flange, 31 is air inlet ring, 33 is seal casinghousing, 35 is static components, 39 is soft graphite, 40 is guider screw, 41 compression springs, 42 is spiral exhaust import, 43 is spiral exhaust, 44 export for spiral exhaust, 45 screwed holes, 46 is outage, 47 is screw hole, 48 is soft graphite groove, 49 is bolt hole, 50 is bolt hole, 51 is graphite grazing groove, 52 is flow-limiting nozzle, 53 is switching pump head, 54 is the second plug, 55 is screwed hole, 56 is peripheral jet mouth, 57 is turbine chamber, 58 is bearing bore.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As it is shown in figure 1, a kind of hydrogen turbine pump of the present invention, this device includes housing unit 1, air intake assembly 2, axle module 14, black box 3. Air intake assembly 2 is fixed on housing unit 1 side; It is internal that axle module 14 is arranged on housing unit 1; Black box 3 is installed between housing unit 1 and axle module 14, it is achieved the turbine chamber 57 of housing unit 1 and the sealing of bearing bore 58.
As shown in Fig. 1,2,3,4,5,6,7,23, air intake assembly 2 includes turbine lid 25, inlet suction port 27, air inlet ring 31. Turbine lid 25 has two Laval nozzles 26. Air inlet ring 31 is the semicircle column jecket cut open, and air inlet ring 31 is welded on turbine lid 25 lateral wall, and air inlet ring 31 wraps up Laval nozzle 26 position, and one end of air inlet ring 31 seals, and the other end of air inlet ring 31 welds with one end of inlet suction port 27. Inlet suction port 27 is made up of the air inlet tube 28 being integrally machined, flange 30, and the end of air inlet tube 28 is provided with flange 30, and flange 30 circumferentially has graphite grazing groove 29, and graphite grazing groove 29 is used for being tightly connected high-pressure air source. The turbine lid 25 of air intake assembly 2 is fixedly attached on the sidewall of housing unit 1 by connecting bolt 8, studs 24, and the junction between air intake assembly 2 and housing unit 1 is sealed by flexible graphite sealing ring 9. Air intake assembly 2 center is provided with the cylindrical drum extended laterally, one end of the axle of axle module 14 is inserted in inside this cylindrical drum, it is provided with plug 6 in the outside of the cylindrical drum of air intake assembly 2, is threaded connection between plug 6 and air intake assembly 2, sealed by copper packing 5 between plug 6 and air intake assembly 2.
As shown in Fig. 8,9,10,11,12,13, axle module 14 includes axle 18, the turbine disk 4, rotating ring 10, o RunddichtringO 11, double; two interior half-turn bearing 13, neck bush 16, angular contact ball bearing 17, tangent pump impeller 21, adjusts pad 20. The turbine disk 4 and both unified entirety it is cased with, for monoblock type turbine rotor outside one end of axle 18. Axle 18 is cased with rotating ring 10 outside the position of the contiguous turbine disk 4. Axle 18 is cased with outside the position of contiguous rotating ring 10 double; two interior half-turn bearing 13. Axle 18 is cased with neck bush 16 outside the position of the double; two interior half-turn bearing 13 of next-door neighbour. Axle 18 is close to outside the position of neck bush 16 and is cased with angular contact ball bearing 17. Axle 18 is cased with outside adjacent corners contact ball bearing 17 position tangent pump impeller 21, and is threadably secured between tangent pump impeller 21 with axle 18 and is connected. By tangent pump impeller 21 being applied screw-down torque, the rotating ring 10 on axle module 14, o RunddichtringO 11, double; two interior half-turn bearing 13, neck bush 16, angular contact ball bearing 17 are fastened on axle 18.
The blade height of the turbine disk 4 is 8-12mm, between angular contact ball bearing 17 and tangent pump impeller 21, is each provided with the first adjustment pad 20 between rotating ring 10 and double; two interior half-turn bearing 13, is interference fits between neck bush 16 and axle 18. Axle module 14, in operation process, adjusts pad 20 by adjusting between rotating ring 10 and double; two interior half-turn bearing 13 first and then adjusts the decrement between rotating ring 10 and static components 35; Adjust pad 20 by first in the middle of adjustment angular contact ball bearing 17 and tangent pump impeller 21 and then adjust the gap between tangent pump impeller 21 and housing unit 1. Axle module 14 is supported by double; two interior half-turn bearings 13, angular contact ball bearing 17, and is installed in housing unit 1. Axle module 14 applies axial pre tightening force by the outer ring of flexible member 19 diagonal angle contact ball bearing 17, the outer ring of double; two interior half-turn bearings 13 is spacing by adjusting baffle ring 12, adjusting baffle ring 12 with housing unit 1 is interference fits, adjusting baffle ring 12 by black box 3, it is spacing, black box 3 is fixed on housing unit 1 by lock-screw 23. It is bearing bore 58 in the middle of double; two interior half-turn bearings 13, angular contact ball bearing 17, on the housing unit 1 of bearing bore 58 bottom porose when needed in order to install speed probe, when need not measure rotating speed, this hole is sealed by the second plug 54, copper packing 15, is threadably secured and is connected between the second plug 54 and housing unit 1.
As shown in Figure 14,15,16,17,18, the gas of the lubricating fluid of bearing bore 58 with turbine chamber 57 is separated by black box 3. Black box 3 includes seal casinghousing 33, static components 35, soft graphite 39, compression spring 41 and O-ring seals 11. The embedded static components 35 that is cased with of seal casinghousing 33, the embedded soft graphite 39 that is cased with of static components 35, it is cased with compression spring 41 between static components 35 and capsule body 33. It is provided thrust by the compression spring 41 being positioned in seal casinghousing 33 by static components 35, realizes axially movable circular motion can only to occur between static components 35 and seal casinghousing 33 by guider screw 40. Seal casinghousing 33 inner circumferential and static components 35 contact position are provided with the seal groove for installing O-ring seals 11, in order to install O-ring seals 11, and being provided with for installing O-ring seals 11 seal groove of seal casinghousing 33 external circumferential.
As shown in Figure 19,20,21,22, there is coaxial cylindrical hole in the middle of housing unit 1, for the placement location of axle module 14; Right side is turbine chamber 57, for the operating position of the turbine disk 4. The side of housing unit 1 has spiral exhaust 43, the spiral exhaust entrance 42 of spiral exhaust 43 is connected with turbine chamber 57, spiral exhaust outlet 42 occurs 180 �� of spirals to curve relative to spiral exhaust entrance 44, spiral exhaust outlet 44 is docked with the connector of servo control mechanism or switching pump head 53, and spiral exhaust exports 44 place's circumferences and has graphite grazing groove 51. Housing unit 1 closes on the end of spiral exhaust 43 side and has screwed hole 45 and oil outlet 46, flow-limiting nozzle 52 is installed in screwed hole 45, the through hole at flow-limiting nozzle 52 center is connected with bearing bore 58 by circular hole, low pressure oil enters in bearing bore 58 by the through hole at flow-limiting nozzle 52 center, it is achieved the lubrication to bearing bore 58; Low pressure oil is discharged from bearing bore 58 by outage 46. The opposite side of housing unit 1 has the soft graphite groove 48 for the screwed hole 47 and fixing flexible graphite 39 installing black box 3. Housing unit 1 realizes the connection between housing unit 1 and air intake assembly 2 by bolt hole 50, connecting bolt 8, the connection of hydrogen turbine pump and the screwed hole 55 of the switching pump head 53 of servo control mechanism is realized by bolt hole 49, realize the connection with mechanical dynamic seal assembly 3 by screw hole 47, realize the installation of sealed graphite 39 between mechanical dynamic seal and housing unit 1 by soft graphite groove 48.
A kind of hydrogen turbine pump work process provided by the present invention: the air inlet tube 28 of air intake assembly 2 is connected with high-pressure air source by pipeline, and flange 30, graphite grazing groove 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 is entered into Laval nozzle 26 by the air inlet tube 28 of air intake assembly 2, air inlet ring 31 and is expanded acceleration, impacts in the turbine disk 4 on the blade of the turbine disk, drives the turbine disk 4 high speed rotating. Low temperature hydrogen after acting is flowed by the part helix of the axle module 14 that the spiral exhaust 43 on housing unit 1 is installed in housing unit 1 and is taken away heat, 180 �� turn round is there occurs relative to spiral shell shape exhaust passage import 42 owing to spiral exhaust exports 44, namely spiral exhaust 43 is installed the helical flow of axle module 14 in housing unit 1 and takes away heat, improves the operating ambient temperature of axle module 14. Spiral exhaust outlet 44 is docked with the screwed hole of servo control mechanism switching pump head 53, and by placing flexible graphite sealing ring 7 in the graphite grazing groove 51 of spiral shell shape Vent passageway 44 circumference to external seal. The hydrogen of spiral exhaust outlet 44 discharge is by the turbine disk 4 Driven by Coaxial tangent pump impeller 21, and tangent pump impeller 21 exports the actuator to servo control mechanism by peripheral jet mouth 56 after will be located in switching pump head 53 intracavity low pressure oil acting supercharging; During supercharging, 45 pressure of switching pump head 53 connection increase, and low pressure oil flows into bearing bore, and by 46 streams to other pipelines.
Claims (10)
1. a hydrogen turbine pump, it is characterized in that: this device includes housing unit (1), air intake assembly (2), the axle module (14) that can rotate relative to housing unit (1), black box (3), air intake assembly (2) is fixed on housing unit (1) side, axle module (14) be arranged in housing unit (1), axle module (14) through black box (3); Black box (3) it is cased with between housing unit (1) and axle module (14); Form turbine chamber (57) between housing unit (1) and air intake assembly (2), between housing unit (1) and axle module (14), form bearing bore (58).
2. a kind of hydrogen turbine pump according to claim 1, it is characterized in that: the side of described housing unit (1) has the spiral exhaust (43) connected with turbine chamber (57), spiral exhaust (43) entrance connects with turbine chamber (57), and the end of spiral exhaust (43) outlet side of housing unit (1) has the screwed hole (45) and oil outlet (46) that connect with bearing bore (58).
3. a kind of hydrogen turbine pump according to claim 2, it is characterised in that: described spiral exhaust (43) exit circumference has graphite grazing groove (51).
4. a kind of hydrogen turbine pump according to claim 3, it is characterised in that: the opposite side of described housing unit (1) has the soft graphite groove (48) of the screwed hole (47) for installing black box (3) and fixing flexible graphite (39).
5. a kind of hydrogen turbine pump according to any one of claim 1 to 4, it is characterized in that: described axle module (14) includes axle (18), axle (18) is cased with outward the turbine disk (4), half-turn bearing (13), neck bush (16), angular contact ball bearing (17), tangent pump impeller (21) successively; Between the turbine disk (4) and double; two interior half-turn bearing (13), interval is arranged, neck bush (16) and double; two interior half-turn bearing (13), angular contact ball bearing are all fitted between (17), fit between angular contact ball bearing (17) and tangent pump impeller (21).
6. a kind of hydrogen turbine pump according to claim 5, it is characterized in that: described air intake assembly (2) includes turbine lid (25), inlet suction port (27), air inlet ring (31), air inlet ring (31) is fixed on turbine lid (25); Inlet suction port (27) is fixed on turbine lid (25) and air inlet ring (31).
7. a kind of hydrogen turbine pump according to claim 6, it is characterized in that: described turbine lid (25) is provided with Laval nozzle (26) on air inlet ring (31), and Laval nozzle (26) is positioned between turbine lid (25) and air inlet ring (31).
8. a kind of hydrogen turbine pump according to claim 7, it is characterized in that: described inlet suction port (27) is made up of air inlet tube (28), flange (30), the end of air inlet tube (28) is provided with flange (30), and flange (30) has graphite grazing groove (29).
9. a kind of hydrogen turbine pump according to claim 8, it is characterized in that: described black box (3) includes seal casinghousing (33), static components (35), soft graphite (39) compression spring (41) seal casinghousing (33) is embedded is cased with static components (35), the embedded soft graphite (39) that is cased with of static components (35), is cased with compression spring (41) between static components (35) and capsule body (33).
10. a kind of hydrogen turbine pump according to claim 9, it is characterised in that: it is provided with sealing ring (11) between described seal casinghousing (33) and static components (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592881.0A CN105626570B (en) | 2014-10-29 | 2014-10-29 | A kind of hydrogen turbine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592881.0A CN105626570B (en) | 2014-10-29 | 2014-10-29 | A kind of hydrogen turbine pump |
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| Publication Number | Publication Date |
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| CN105626570A true CN105626570A (en) | 2016-06-01 |
| CN105626570B CN105626570B (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410592881.0A Active CN105626570B (en) | 2014-10-29 | 2014-10-29 | A kind of hydrogen turbine pump |
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| CN (1) | CN105626570B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939722A (en) * | 2017-11-30 | 2018-04-20 | 北京航天动力研究所 | A kind of oxyhydrogen engine turbine pump is spring-loaded automatic disengaging dynamic sealing device |
| 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 |
| CN108019293A (en) * | 2016-10-31 | 2018-05-11 | 北京精密机电控制设备研究所 | A kind of multistage reentry type turbine |
| 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 |
| CN111855103A (en) * | 2020-08-13 | 2020-10-30 | 北京星际荣耀空间科技有限公司 | Mechanical seal detection device |
Citations (4)
| 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 |
-
2014
- 2014-10-29 CN CN201410592881.0A patent/CN105626570B/en active Active
Patent Citations (4)
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108019293A (en) * | 2016-10-31 | 2018-05-11 | 北京精密机电控制设备研究所 | A kind of multistage reentry type turbine |
| CN107939722A (en) * | 2017-11-30 | 2018-04-20 | 北京航天动力研究所 | A kind of oxyhydrogen engine turbine pump is spring-loaded automatic disengaging dynamic sealing device |
| 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 |
| CN111855103A (en) * | 2020-08-13 | 2020-10-30 | 北京星际荣耀空间科技有限公司 | Mechanical seal detection device |
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| CN105626570B (en) | 2018-08-21 |
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