Three-curvature automobile water pump impeller
A water pump impeller and curvature technology, which is applied in the field of three-curvature automotive water pump impellers, can solve the problems of poor cavitation resistance, low service life of water pump blades, easy backflow or vortex, etc., and achieve the effect of improving cavitation resistance and hydraulic efficiency
Inactive Publication Date: 2019-05-21
湖北华联泵业有限公司
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Problems solved by technology
[0002] The impeller is the core part of pump products. The blade part is a relatively complex curved surface structure. Whether the design of the impeller structure conforms to the hydrodynamic characteristics will affect the working efficiency of the pump and the energy consumption. Due to the straight blade design Backflow or vortex is easy to occur inside the water pump, so the current automobile water pumps mostly have arc-shaped blades, which are fixed on the wheel around the connection port, which is convenient to process, but the cavitation resistance is poor, the service life of the pump blades is low, and the blades need to be replaced frequently
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[0009] The present invention will be further described below in conjunction with the drawings.
[0010] Such as figure 1 , A three-curvature automobile water pump impeller, comprising a plurality of impeller blades arranged on the impeller disk, the blades start at 1 / 3 of the radius of the impeller disk from the inside to the outside, and the blades have a three-curvature structure, Including the first section 1 with the center outwards and the second section 2 with the center inwards; the curvature of the first section 1 is smaller than that of the second section 2, and there is a ratio between the first section 1 and the second section 2. The curvature of the first quarter 1 and the curvature of the second quarter 2 are both large in the third quarter 4.
[0011] Three pressure discharge holes 3 are symmetrically provided on the impeller disk, and the pressure discharge holes 3 are arranged between the second sections 2 of the two blades.
[0012] The principle of cavitation: Whe...
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The invention discloses a three-curvature automobile water pump impeller. A plurality of impeller blades arranged on an impeller disc are included and start from the 1 / 3 position of the radius of theimpeller disc from interior to exterior. Each blade is of a three-curvature structure and comprises a first joint 1 with the outward circle center and a second joint 2 with the inward circle center, wherein the curvature of the first joint 1 is smaller than that of the second joint 2, and a third joint 4 with the curvature larger than the curvature of the first joint 1 and the curvature of the second joint 2 is arranged between the first joint 1 and the second joint 2. The automobile water pump impeller is simple in structure and low in cost; design is conducted according to the flow and pressure requirements of an engine cooling system, determination is achieved after CFD is adopted for analysis, and through the unique blade structure, the anti-cavitation performance and the hydraulic efficiency of an automobile water pump are improved.
Description
Technical field [0001] The invention belongs to a cooling system relating to an automobile engine, in particular to a water pump of an automobile engine, and in particular to a three-curvature automobile water pump impeller. Background technique [0002] The impeller is the core part of pump products. The blade part is a more complicated curved surface structure. Whether the design of the impeller structure conforms to the characteristics of fluid mechanics, affects the working efficiency and energy consumption of the pump, due to the straight blade design. The water pump is prone to backflow or vortex, so the current automobile water pumps are mostly curved blades, which are fixed on the wheel disc around the connection port, which is convenient for processing, but the cavitation resistance is poor, the service life of the water pump blades is low, and the blades need to be replaced frequently . Summary of the invention [0003] The purpose of the present invention is to improve...
Claims
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IPC IPC(8): F04D29/18F04D29/66
Inventor 桂林华黄建流
Owner 湖北华联泵业有限公司