Results 231 to 240 of about 4,574 (288)
Brush seals and common issues in brush seal applications [PDF]
, 2012 Brush seals are receiving wider acceptance with growing number of successful turbomachinery sealing applications over the past couple of decades. Due to their complaint nature these seals can recover from large transient rotor interference occurrences without any appreciable sustained damage or permanent performance loss. They are formed by a multitude
Akşit, Mahmut Faruk
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Evaluation of Brush Seal Performance for Oil Sealing Applications
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2003 Oil sealing at high speeds is one of the major problems engineers should address in turbomachinery design. High temperatures faced in oil sumps in aircraft engines, and large seal sizes typical in land based turbine applications further complicate the problem.
Akşit, Mahmut Faruk +4 more
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Design considerations towards the construction of hybrid floating brush seal (HFBS)
Tribology International, 2004 The hybrid floating brush seal (HFBS) represents an advance in brush seal technology by combining brush seal and film riding face seal technologies to create a hybrid seal that allows both axial and radial excursions of the sealed shaft without damage to
F K Choy
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Study of the Brush Seal Design and Test Technology
Applied Mechanics and Materials, 2011 Design and test technologies for brush seal are summarized in this paper. Test process under static and dynamic states for brush seal is introduced.
Ling He
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Experimental and theoretical rotordynamic stiffness coefficients for a three-stage brush seal
Mechanical Systems and Signal Processing, 2012 Experimental and theoretical results are presented for a multistage brush seal. Experimental stiffness is obtained from integrating circumferential pressure distribution measured in seal cavities.
Pugachev, A.O.;Deckner, M.
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Porosity Modeling of Brush Seals
Journal of Tribology, 1997A new model for predicting leakage flows through the bristle pack of brush seals is developed. In the model, the bristle pack is treated as a porous medium. Good agreement is demonstrated between predictions from a one-dimensional form of the model and a wide range of experimental data available from the literature, for seals with a bristle pack to ...
Chew, JW, Hogg, SI
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Insights Into Frictional Brush Seal Hysteresis
Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, 2023Abstract Brush seals offer a superior sealing effectiveness compared to labyrinth seals. However, widespread use of brush seals is constrained by deleterious behaviors such as pressure-stiffening and hysteresis. For the latter, the bristles bend during the shaft incursion process and do not fully recover during the shaft retraction ...
Phan, Hien +2 more
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48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012
The use of Brush Seals continues to expand in both the Power Generation and the Aerospace markets and we continue to learn more about their functionality. This paper continues on from our previous papers and in particular AIAA 2002-3794 which examines, analytically and experimentally the effects of Hysteresis.
Peter Crudgington +3 more
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The use of Brush Seals continues to expand in both the Power Generation and the Aerospace markets and we continue to learn more about their functionality. This paper continues on from our previous papers and in particular AIAA 2002-3794 which examines, analytically and experimentally the effects of Hysteresis.
Peter Crudgington +3 more
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50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014
A brush seal for use between a rotating component and a stationary component in a turbomachine is disclosed. The brush seal according to embodiments of this invention includes a set of bristles having a fixed end and a free end, wherein the fixed end is attached to the rotating component with a mechanical clamping element and the free end extends ...
Xiaoqing Zheng +4 more
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A brush seal for use between a rotating component and a stationary component in a turbomachine is disclosed. The brush seal according to embodiments of this invention includes a set of bristles having a fixed end and a free end, wherein the fixed end is attached to the rotating component with a mechanical clamping element and the free end extends ...
Xiaoqing Zheng +4 more
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Multiple Brush Seals in Series
Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 1997Rolls-Royce has identified phenomena associated with aeroelastic instability of brush seal bristles, when multiple seals are operated in series at high pressure loading. This paper gives a general overview of test experience to date. A brush seal test facility commissioned by Rolls-Royce at Oxford University is described, along with results from double
Aideen T. O’Neill +4 more
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