RU2014121916A - LOW PRESSURE COMPRESSOR SHAFT ROTOR SECTION OF TURBO-REACTIVE ENGINE (OPTIONS) - Google Patents
LOW PRESSURE COMPRESSOR SHAFT ROTOR SECTION OF TURBO-REACTIVE ENGINE (OPTIONS) Download PDFInfo
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- RU2014121916A RU2014121916A RU2014121916/06A RU2014121916A RU2014121916A RU 2014121916 A RU2014121916 A RU 2014121916A RU 2014121916/06 A RU2014121916/06 A RU 2014121916/06A RU 2014121916 A RU2014121916 A RU 2014121916A RU 2014121916 A RU2014121916 A RU 2014121916A
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Abstract
1. Секция вала ротора с лопатками компрессора низкого давления (КНД) турбореактивного двигателя (ТРД), включающего корпус с проточной частью, характеризующаяся тем, что выполнена в качестве второй секции вала ротора по ходу воздушного потока в КНД и включает диск третьей ступени и снабженную фланцем цилиндрическую проставку, при этом секция выполнена неразборной, причем диск выполнен в виде моноэлемента, включающего обод, переходящий в кольцевое полотно, усиленное ступицей, снабженной центральным отверстием, а обод диска снабжен со стороны, обращенной к проточной части, системой пазов для соединения с лопатками ротора, причем продольная ось каждого из пазов указанного диска третьей ступени образует с осью ротора в проекции на условную осевую плоскость, нормальную к радиусу, проведенному через центральную точку оси паза, угол α, определенный в диапазоне значений α=(19÷28)°, а пазы равномерно разнесены по периметру диска с угловой частотой Y=(6,7÷11,5) [ед./рад], при этом обод указанного диска выполнен с возрастающим по направлению потока рабочего тела радиусом с градиентом радиального расширения G, определенным в диапазонегде Rи R- максимальный и минимальный радиусы внешней поверхности обода диска, а B- осевая ширина обода диска.2. Секция вала ротора по п. 1, отличающаяся тем, что обод диска третьей ступени асимметрично соединен с полотном с образованием разноплечих кольцевых конических наклонных полок, тыльная из которых превышает ширину фронтальной не менее чем в 1,7 раза, при этом радиус диска от оси вала ротора до верха обода в средней плоскости полотна диска составляет (0,54÷0,77) от радиуса периферийного контура проточн1. Section of the rotor shaft with the blades of the low-pressure compressor (LPC) of a turbojet engine (TRD), comprising a housing with a flow part, characterized in that it is made as the second section of the rotor shaft along the air flow in the LPC and includes a disk of the third stage and equipped with a flange a cylindrical spacer, while the section is made non-separable, the disk being made in the form of a single element including a rim turning into an annular web reinforced by a hub provided with a central hole, and the disk rim is equipped with a side s, facing the flow part, with a system of grooves for connecting with the rotor blades, and the longitudinal axis of each of the grooves of the specified third stage disk forms with the rotor axis in the projection on the conditional axial plane normal to the radius drawn through the center point of the groove axis, angle α, defined in the range of values α = (19 ÷ 28) °, and the grooves are evenly spaced around the perimeter of the disk with an angular frequency Y = (6.7 ÷ 11.5) [units / rad], while the rim of the specified disk is made with increasing the direction of flow of the working fluid with a radius and gradient radially expansion G, defined in the range where R and R are the maximum and minimum radii of the outer surface of the disk rim, and B is the axial width of the disk rim. 2. The rotor shaft section according to claim 1, characterized in that the rim of the third-stage disk is asymmetrically connected to the web with the formation of different-shouldered annular conical inclined shelves, the back of which exceeds the front width by at least 1.7 times, while the radius of the disk from the shaft axis the rotor to the top of the rim in the middle plane of the blade web is (0.54 ÷ 0.77) from the radius of the peripheral contour flow
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2014121916/06A RU2573417C2 (en) | 2014-05-30 | 2014-05-30 | Turbojet engine low-pressure compressor rotor shaft (versions) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2014121916/06A RU2573417C2 (en) | 2014-05-30 | 2014-05-30 | Turbojet engine low-pressure compressor rotor shaft (versions) |
Publications (2)
Publication Number | Publication Date |
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RU2014121916A true RU2014121916A (en) | 2015-12-10 |
RU2573417C2 RU2573417C2 (en) | 2016-01-20 |
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RU2014121916/06A RU2573417C2 (en) | 2014-05-30 | 2014-05-30 | Turbojet engine low-pressure compressor rotor shaft (versions) |
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Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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SU785529A1 (en) * | 1979-02-05 | 1980-12-07 | Предприятие П/Я Р-6838 | Axial turbomachine impeller |
SU1348563A1 (en) * | 1986-06-30 | 1987-10-30 | И. К. Попов | Attachment unit of axial compressor blade |
RU2162782C2 (en) * | 1996-10-04 | 2001-02-10 | Гололобов Олег Александрович | Method of turbomachine manufacture and grinding machine for its embodiment |
CN202209313U (en) * | 2011-09-19 | 2012-05-02 | 哈尔滨汽轮机厂有限责任公司 | First-level blade of gas compressor used for high-power gas turbine |
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2014
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RU2573417C2 (en) | 2016-01-20 |
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