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A Less Invasive Approach to Axial Flow Pump Insertion
The Journal of Heart and Lung Transplantation, 2008Implantation of a HeartMate II or a Jarvik 2000 FlowMaker left ventricular assist system (LVAS) usually involves a mid-line sternotomy and the use of cardiopulmonary bypass (CPB). In patients with numerous co-morbid conditions, however, surgical trauma may be minimized by implanting the LVAS via a minimally invasive approach, preferably without CPB.In ...
I.D. Gregoric +7 more
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Flow Characteristics of High-Efficient Axial Flow Pump System
ASME 2015 Power Conference, 2015Three-dimensional flow-fields in a high-efficient axial flow pump system were simulated by CFD to further study the internal flow characteristics. The internal flow patterns of the pump system were obtained at large, small and optimum operating conditions.
Chao Liu, Fan Yang, Yan Jin, Hua Yang
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AXIAL FLOW PUMP-ENERGIZED ARTIFICIAL HEART
1983Publisher Summary This chapter describes a new type artificial heart pump that uses a unidirectional rotating impeller and variable pitch blades that will eventually be driven by two D.C. brushless motors. The system will be powered by an external electrical coil that energizes an implantable secondary coil.
C.Wm. Hall, O.M. Anderson
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NPSHr Optimization of Axial-Flow Pumps
Journal of Fluids Engineering, 2008The two-step method for optimizing net positive suction head required (NPSHr) of axial-flow pumps is proposed in this paper. First, the NPSHr at the impeller tip is optimized with impeller diameter based on experimental data of 2D cascades in available wind tunnels.
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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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[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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Axial-flow polymer bridge pump with hydrodynamic bearings
Journal of Artificial OrgansA portable axial-flow polymer bridge pump with hydrodynamic bearings has been developed for bridge-to-bridge use. The pump is inexpensive to manufacture and disposable. It weighs 185 g and was verified to have a lifetime of 3 months with silent operation.
Takashi, Yamane +4 more
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Shaft Failure of Large Axial Flow Pumps
Journal of the Power Division, 1976Failure of shafts driving large axial flow pumps was found to be caused by intake flow pattern. Extensive tests on prototype pump and laboratory model were used to identify and correct the problem. Strains measured on the shaft during pump operation showed the existence of a cyclic bending moment sufficiently large to cause a fatigue failure.
Christopher A. Gardner, Howard T. Hill
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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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