Results 111 to 120 of about 18,474 (162)
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The Performance of an Axial-Flow Pump
Proceedings of the Institution of Mechanical Engineers, 1956Tests were made on an 11-inch diameter axial-flow propeller pump with impeller and guide blades designed for free vortex conditions, using as a basis the modified aerofoil theory. The best overall efficiency obtained was 82 per cent. Apart from head-flow and efficiency characteristics, measurements were made of velocities and yaw angles within the ...
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The Design of Axial Flow Pumps
Journal of Fluids Engineering, 1956Abstract A design procedure for axial-flow pump impellers is presented that accounts for induced interference effects in the prediction of performance. Induced interference velocities at an impeller blade have been calculated using a three-dimensional model that includes the effects of the other blades and of the total downstream ...
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CONE FLOW AND AXIAL FLOW PUMPS
1993This chapter describes cone flow and axial flow pumps. For low heads up to about 40 m per stage and for type numbers above about 3000, cone flow and axial flow pumps may be used. In general, these pumps have vertical spindles and are arranged to draw water directly from a well or sump, for example, mixed flow pump.
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ASAIO Journal, 1995
From an engineering point of view, the suitable revolution number for high efficiency operation of an axial flow pump is known. A multistage axial flow pump is a useful tool for reducing revolution number with a high efficiency axial flow pump. A two stage (25) axial flow pump designed at a 5 L/min flow rate and a 100 mmHg pressure head was evaluated ...
Yoshinari Wakisaka +12 more
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From an engineering point of view, the suitable revolution number for high efficiency operation of an axial flow pump is known. A multistage axial flow pump is a useful tool for reducing revolution number with a high efficiency axial flow pump. A two stage (25) axial flow pump designed at a 5 L/min flow rate and a 100 mmHg pressure head was evaluated ...
Yoshinari Wakisaka +12 more
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[The design of axial flow pump].
Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, 2002Axial flow pump has been the hot point of the research field of circulatory support. This article has outlined the basic principle of its design and the methodology of its experimental study, and explained that excellent engineer design, avoiding turbulence, cavitation and wake, and reducing the destroy of red blood cells were the goal to get in design
E, Chen, X, Yu, W, Ding
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ASAIO journal (American Society for Artificial Internal Organs : 1992), 2003
Each year, thousands of cardiac patients await healthy donor hearts for transplantation. Due to the current shortage of donor hearts (approximately 2300 per year), these patients often require supplemental circulatory support until a transplant becomes available. This supplemental support is often provided by a mechanical heart pump or left ventricular
Xinwei, Song +6 more
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Each year, thousands of cardiac patients await healthy donor hearts for transplantation. Due to the current shortage of donor hearts (approximately 2300 per year), these patients often require supplemental circulatory support until a transplant becomes available. This supplemental support is often provided by a mechanical heart pump or left ventricular
Xinwei, Song +6 more
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Submersible axial-flow pumps for dredges
Hydrotechnical Construction, 19951. For the first time in Russia a submersible axial-flow dredge pump was developed and tested for installation as a first-stage pump on dredges to reduce the negative pressure before the hold dredge pump and to increase its positive suction head. 2.
S. P. Ogorodnikov +2 more
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Modeling of Recirculation in Axial Flow Pumps
1992The object of this paper is to qualitatively point out the critical flow rate corresponding to recirculation in the axial pumps. This situation is reached when the global flow rate of the machine decreases from the nominal value Qm to a first critical value Qk corresponding to the cancellation of the flow rate at the hub.
R. Noguera +3 more
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Numerical study on the impeller of an axial flow blood pump
2011 4th International Conference on Biomedical Engineering and Informatics (BMEI), 2011Continuous flow rotary blood pumps have been developed for decades due to the limited heart donors. Both axial and centrifugal flow types have been developed. In this study, an axial flow blood pump is studied, and the main focus is on the impeller optimization. Totally, nine impeller designs have been studied.
Leok Poh Chua, Boyang Su
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A Study of the Theory of Axial-Flow Pumps
Journal of Fluids Engineering, 1945Abstract The essential aim of this paper is to present the theory of axial-flow pump runners in as simple a form as possible. The results are fairly conclusive in so far as the determination of the flow conditions in individual cylindrical stream surfaces is considered. In addition, it has been found possible to eliminate the controversy
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