Results 21 to 30 of about 116 (106)
Experimental study and numerical analysis of vacuum thermal characteristics of brush DC motor
Energy Storage and Saving, 2023 Brush direct current (DC) motors have several qualities that make them very attractive for space flight applications. Considering the high reliability requirements of aerospace missions, the thermal characteristics and thermal failure of the brush DC ...
Tao Li +3 more
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Aerospace, 2018 Reducing losses in the secondary air system of gas and steam turbines can significantly increase the efficiency of such machines. Meanwhile, brush seals are a widely used alternative to labyrinth seals.
Manuel Hildebrandt +4 more
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Technology and equipment of preventing gas overrun in drilling operation of outburst coal seam
Meikuang Anquan, 2021 Aiming at the problem of gas gushing hole during the construction of through layer drilling(hydraulic punching), the factors that easily cause gas overrun in the working space during the hydraulic punching operation are analyzed and determined.
HAO Dian, LI Xuechen, WEI Peijin
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Brush Seal Performance and Durability Issues Based on T-700 Engine Test Results
International Journal of Rotating Machinery, 1995 The integrity and performance of brush seals have been established. Severe bench and engine tests have shown high initial wear or rub-in rates, material smearing at the interface, and bristle and rub-runner wear, but the brush seals did not fail.
R. C. Hendricks
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发电技术ObjectivesIn order to obtain the refined leakage flow of brush seal and reveal its sealing mechanism, the mathematical model of the leakage flow characteristics of brush seals based on the bristle pack staggered tube bundle model was established ...
SONG Pengfei +4 more
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Bidirectional Brush Seals [PDF]
Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 1997 Presented is a study of the use of a set of I.D./O.D. bidirectional brush seals to reduce the leakage losses in a wave rotor. Relative to the baseline configuration, data indicate the use of brush seals enhanced wave rotor efficiency from 36 to 45 percent at low leakages (small rotor endwall gap spacings) and from 15 to 33 percent at high leakages ...
Robert C. Hendricks +3 more
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AIP Advances, 2021 The leakage characteristics and hysteresis effect were experimentally studied on three test pieces of a low hysteresis brush seal with bristle lay angles of 40°, 45°, and 50°.
Yaping Hu +5 more
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A CLINICAL CASE OF APPLICATION OF «ICON-INFILTRANT» SYSTEM IN THERAPEUTIC DENTISTRY
Проблеми екології та медицини, 2021 Modern scientific and technological progress offers a new standard of treatment of odontopathology - infiltration of enamel with resins to seal cracks, chips and to level the surface in the affected area.
N.M. Brailko +4 more
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Mathematical model of brush seals for gas turbine engines: A nonlinear analytical solution
Advances in Mechanical Engineering, 2021 Presented herein is a mathematical model employing differential equations formulation for brush seals used in gas turbine engines. These components are used to seal the bearing chamber from the environment and reduce the loss of lubricant in the ...
Amin Changizi +3 more
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Investigating the frictional force distributions and inter-stage imbalance of a two-stage brush seal
AIP Advances, 2020 Although a two-stage brush seal (TSBS) plays an important role in gas turbine machinery, few studies have investigated the complex flow and tip frictional force distributions of the TSBS.
Jie Yang +3 more
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