RU95106843A - Device for axial unloading of rotor of turbine pump unit - Google Patents

Device for axial unloading of rotor of turbine pump unit

Info

Publication number
RU95106843A
RU95106843A RU95106843/06A RU95106843A RU95106843A RU 95106843 A RU95106843 A RU 95106843A RU 95106843/06 A RU95106843/06 A RU 95106843/06A RU 95106843 A RU95106843 A RU 95106843A RU 95106843 A RU95106843 A RU 95106843A
Authority
RU
Russia
Prior art keywords
rotor
turbine
tna
axial
unloading
Prior art date
Application number
RU95106843/06A
Other languages
Russian (ru)
Other versions
RU2099567C1 (en
Inventor
А.И. Дмитренко
В.К. Першин
Original Assignee
Конструкторское бюро химавтоматики
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Конструкторское бюро химавтоматики filed Critical Конструкторское бюро химавтоматики
Priority to RU95106843A priority Critical patent/RU2099567C1/en
Publication of RU95106843A publication Critical patent/RU95106843A/en
Application granted granted Critical
Publication of RU2099567C1 publication Critical patent/RU2099567C1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K9/00Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/42Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
    • F02K9/44Feeding propellants
    • F02K9/46Feeding propellants using pumps
    • F02K9/48Feeding propellants using pumps driven by a gas turbine fed by propellant combustion gases or fed by vaporized propellants or other gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

FIELD: pump engineering. SUBSTANCE: device has multi- stage pump, turbine, rotor, unloading space of the impeller with a control member, axial space in the control member, drain space downstream of the unloading space, and rotor seal that separates the spaces of the turbine and pump. The drain space is connected with the inlet of the impeller of the second stage through openings provided in the impellers and ring passageway defined by the shaft and hubs of the impellers. There is a ring projection on the housing from the side of the turbine disk at its periphery. The projection and the end face of the turbine form an axial space. The projection and the separating seal of the rotor form the unloading space. The value of the axial space, when the rotor is shifted in the direction to the turbine, is equal to the axial stroke of the rotor. EFFECT: enhanced efficiency. 2 dwg

Claims (1)

Устройство относится к турбонасосным агрегатам (ТНА) кислородно-водородных ЖРД. Устройство может быть использовано в ТНА ЖРД, работающих на высококипящих компонентах топлива, а также в водородных ТНА ядерных двигателей. Устройство для осевой разгрузки ротора турбонасосного агрегата, содержит многоступенчатый насос, турбину, ротор, разгрузочную полость крыльчатки с регулирующим элементом, осевой зазор в регулирующем элементе полость слива после разгрузочной полости и уплотнение ротора, разделяющее полости турбины и насоса. Полость слива соединена с входом крыльчатки второй степени с помощью отверстий в крыльчатках и кольцевого канала, образованного валом и ступицами крыльчаток, а в корпусе со стороны диска турбины в периферийной его части выполнен кольцевой выступ, образующий совместно с торцом диска турбины осевой зазор, а с разделительным уплотнением ротора - разгрузочную полость, при этом величина осевого зазора при смещенном в сторону турбины роторе равна осевому ходу ротора. Применение данного устройства повышает экономичность и надежность ТНА и обеспечивает живучесть конструкции при нарушении функционирования ее составных частей и агрегатов двигателя. Использование данного устройства не требует новых технологических приемов, применения новых инструментов и особых условий эксплуатации, не увеличивает трудоемкость и длительность изготовления и осуществляется общеизвестными приемами изготовления и сборки ТНА.The device relates to turbopump units (TNA) of oxygen-hydrogen LRE. The device can be used in TNA LPREs operating on high-boiling fuel components, as well as in hydrogen TNA of nuclear engines. A device for axial unloading of a rotor of a turbopump assembly, comprises a multistage pump, a turbine, a rotor, an impeller unloading cavity with a regulating element, an axial clearance in the regulating element, a drain cavity after the unloading cavity, and a rotor seal separating the turbine and pump cavities. The drain cavity is connected to the inlet of the impeller of the second degree by means of holes in the impellers and an annular channel formed by the shaft and hubs of the impellers, and an annular protrusion is made in the housing from the side of the turbine disk in its peripheral part, forming an axial clearance together with the end face of the turbine disk, and with a separation the rotor seal is an unloading cavity, while the axial clearance when the rotor is biased towards the turbine is equal to the axial travel of the rotor. The use of this device increases the efficiency and reliability of the TNA and ensures the survivability of the structure in case of malfunction of its components and engine assemblies. The use of this device does not require new technological methods, the use of new tools and special operating conditions, does not increase the complexity and duration of manufacture and is carried out by well-known techniques for the manufacture and assembly of TNA.
RU95106843A 1995-04-28 1995-04-28 Device for axial unloading of rotor of turbine pump unit RU2099567C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95106843A RU2099567C1 (en) 1995-04-28 1995-04-28 Device for axial unloading of rotor of turbine pump unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95106843A RU2099567C1 (en) 1995-04-28 1995-04-28 Device for axial unloading of rotor of turbine pump unit

Publications (2)

Publication Number Publication Date
RU95106843A true RU95106843A (en) 1997-02-20
RU2099567C1 RU2099567C1 (en) 1997-12-20

Family

ID=20167247

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95106843A RU2099567C1 (en) 1995-04-28 1995-04-28 Device for axial unloading of rotor of turbine pump unit

Country Status (1)

Country Link
RU (1) RU2099567C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767870B3 (en) * 1997-08-27 2000-10-20 G Predpr K Bjurokhimicheskoi A TURBOPOMPE GROUP
FR2779769B1 (en) * 1999-08-18 2000-10-20 G Predpr K Bjurokhimicheskoi A TURBOPOMPE GROUP
FR2779770A1 (en) * 1999-08-18 1999-12-17 G Predpr K Bjurokhimicheskoi A Turbo pump with multistage pump assembly
FR2779771A1 (en) * 1999-08-18 1999-12-17 G Predpr K Bjurokhimicheskoi A Turbo pump with multistage pump and turbine assemblies
DE102008022966B4 (en) * 2008-05-09 2014-12-24 Siemens Aktiengesellschaft rotary engine
RU2641994C1 (en) * 2016-10-10 2018-01-23 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения имени П.И. Баранова" Device for balance of rotor axial pressure of turbomachine

Also Published As

Publication number Publication date
RU2099567C1 (en) 1997-12-20

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