Results 31 to 40 of about 54,946 (273)
Gas-to-hydraulic power converter [PDF]
, 1982 A gas piston driven hydraulic piston pump is described in which the gas cycle is of high efficiency by injecting the gas in slugs at the beginning of each power stroke. The hydraulic piston is disposed to operate inside the as piston, and the two pistons,
Galloway, C. W.
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Non-adiabatic pumping in an oscillating-piston model
, 2012 We consider the prototypical "piston pump" operating on a ring, where a circulating current is induced by means of an AC driving. This can be regarded as a generalized Fermi-Ulam model, incorporating a finite-height moving wall (piston) and non trivial ...
Castañeda A. Dittrich T. Sinuco G. +7 more
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Experimental study of high pressure phase equilibrium of (CO2 + NO2/N2O4) mixtures [PDF]
, 2011 Experimental bubble pressure, as well as liquid density of (CO2 + NO2/N2O4) mixtures are reported at temperatures ranging from (298 to 328.45) K. Experiments were carried out using a SITEC high-pressure variable volume cell.
Camy, Séverine +2 more
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Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Shock and Vibration, 2021 An axial piston pump fault diagnosis algorithm based on empirical wavelet transform (EWT) and one-dimensional convolutional neural network (1D-CNN) is presented.
Wanlu Jiang +4 more
doaj +1 more source
ADVANCES IN THE SIMULATION OF AXIAL PISTON PUMPS
Proceedings of the JFPS International Symposium on Fluid Power, 2002 The present paper details advances attained in the modelling and simulation of axial piston pumps. The simulation environment is AMESim and new in-house developed submodels allow a quantitative appraisal of exchanged forces inside the pump. Care is devoted to the analysis and modelling of the port plate geometry that significantly contributes to the fl
MANCO', Salvatore +3 more
openaire +4 more sources
Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review
Advanced Healthcare Materials, EarlyView.Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro +8 more
wiley +1 more source
Study on mechanical efficiency of 65 ml/r fuel pump and its piston optimization
Advances in Mechanical Engineering, 2023 The 65 ml/r fuel pump proposed in this paper is a new type of large-displacement piston pump. The pump is of the roller plunger type construction. This structure enables the pump to have good performance even under high and variable speed conditions ...
Yang Ding +4 more
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Analysis of piston seals efficiency in silent pump units using analysis of deformed state of compression chamber cylindrical part [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2020 The article discusses the application of various types of seals in piston pump with low-speed long-stroke units. The calculated values of the deformations of the cylindrical part of the working chamber and the current value of the actual clearances for
D. S. Titov, S. S. Busarov, I. P. Aistov
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Overview of free-piston Stirling technology at the NASA Lewis Research Center [PDF]
, 1985 An overview of the National Aeronautics and Space Administration (NASA) Lewis Research Center (Lewis) free-piston Stirling engine activities is presented.
Slaby, J. G.
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