Results 91 to 100 of about 296,793 (263)

Aerodynamic performance of conventional and advanced design labyrinth seals with solid-smooth abradable, and honeycomb lands [PDF]

open access: yes
Labyrinth air seal static and dynamic performance was evaluated using solid, abradable, and honeycomb lands with standard and advanced seal designs. The effects on leakage of land surface roughness, abradable land porosity, rub grooves in abradable lands,
Cox, D. M., Holle, G. F., Stocker, H. L.
core   +1 more source

Numerical Investigation on Windback Seals Used in Aero Engines

open access: yesAerospace, 2018
Seals are considered one of the most important flow elements in turbomachinery applications. The most traditional and widely known seal is the labyrinth seal but in recent years other types like the brush or carbon seals were introduced since they ...
Michael Flouros   +3 more
doaj   +1 more source

Experimental rotordynamic coefficient results for teeth-on-rotor and teeth-on-stator labyrinth gas seals [PDF]

open access: yes
An experimental test facility is used to measure the rotordynamic coefficients of teeth-on-rotor and teeth-on-stator labyrinth gas seals. Direct damping coefficients are presented for these seals for the first time.
Childs, Dara W., Scharrer, Joseph K.
core   +1 more source

High speed, self-acting, face-contact shaft seal has low leakage and very low wear [PDF]

open access: yes, 1972
Design adds gas thrust bearing to face of conventional face seal. Bearing lifts seal's carbon face out of contact after startup and establishes thin gas film between sealing surfaces.
Johnson, R. L., Ludwig, L. P., Zuk, J.
core   +1 more source

A model for the space shuttle main engine high pressure oxidizer turbopump shaft seal system [PDF]

open access: yes
A simple static model is presented which solves for the flow properties of pressure, temperature, and mass flow in the Space Shuttle Main Engine pressure Oxidizer Turbopump Shaft Seal Systems. This system includes the primary and secondary turbine seals,
Paxson, Daniel E.
core   +1 more source

Studi Numerik Pengaruh Variasi Jarak Antar Gigi, Tinggi Gigi, Tekanan Inlet dan Kecepatan Putaran Poros Turbin ORC Pada Refrigerant R123 yang Melewati Labyrinth Seal Tipe Balance Drum

open access: yesJurnal Teknik ITS, 2013
ORC (Organic Rankine Cycle) merupakan salah satu inovasi sistem pembangkit tenaga yang memanfaatkan panas bumi dengan fluida yang mampuĀ  menguap pada tekanan dan temperatur rendah.
Fajar Kurnianto, Prabowo Prabowo
doaj  

Effects of Four Types of Pre-swirls on the Leakage, Flow Field, and Fluid-Induced Force of the Rotary Straight-through Labyrinth Gas Seal

open access: yesChinese Journal of Mechanical Engineering, 2019
The labyrinth seal in turbomachinery is a key element that restricts leakage flow among rotor-stator clearances from high-pressure regions to low-pressure regions.
Qingfeng Wang, Lidong He
doaj   +1 more source

Prediction of force coefficients for labyrinth seals [PDF]

open access: yes
The development of a linear model for the prediction of labyrinth seal forces and on its comparison to available stiffness data is presented. A discussion of the relevance of fluid damping forces and the preliminary stages of a program to obtain data on ...
Czajkowski, E.   +2 more
core   +1 more source

Damping seal for turbomachinery [PDF]

open access: yes, 1985
A damping seal between a high speed rotor member and stator member that separates pressurized fluid compartments is described. It is characterized by the rotor member having a smooth outer surface and the stator member having its bore surface roughened ...
Vonpragenau, G. L.
core   +1 more source

High stability design for new centrifugal compressor [PDF]

open access: yes
It is essential that high-performance centrifugal compressors be free of subsynchronous vibrations. A new high-performance centrifugal compressor has been developed by applying the latest rotordynamics knowledge and design techniques: (1) To improve the ...
Kanki, H.   +6 more
core   +1 more source

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