WebAug 1, 2024 · Spherical pump has a ball-in-socket contact pattern between piston and cylinder. Therefore, traditional Hertz contact theory is not applicable and fractal theory is employed to investigate the conformal contact between piston and cylinder in this paper. The asperities contact on roughness surface is regarded as Hertz contact and friction ... WebJul 18, 2024 · The Spherical Valve Spherical valves are designed similar to ball & cage valves in regard to the radiused seating surface but without the bulk & weight of the entire …
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WebOct 1, 2016 · Micro pump, as the core component of micro flow control system, is the key to the research of micro fluidic system. This article presents a new type of spherical micro pump, and investigates the ... WebNov 24, 2016 · Spherical pump (a) sectional schematic (b) 3D view (c) prototype. Generally, the piston, rotary disc and cylinder body consist of different material due to their applications, working media and cost constraints, etc. The most common materials are stainless steel, bronze and engineering plastic such as polyetheretherketone (PEEK). Two … lower sodium beef broth
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WebFeb 28, 2024 · For spherical pumps, engineering plastics such as polyetheretherketone (PEEK) can be utilized to fabricate pistons in order to improve the tribological performances. 11 –14 Surface roughness is another key parameter affecting the tribological regime of hydraulic pumps. 9 Zhu et al. 9 studied the effects of surface topography on low-speed ... WebThe SP Board™ means Big savings on Energy bills, Enhanced Safety, Versatility, Very low maintenance costs and because it uses energy efficiently, a reduction in Carbon … WebMay 7, 2024 · The theoretical contact model between a piston and a cylinder is established based on its structural and operational properties, to obtain the maximum contact force quantitatively. The effects of different structural parameters and working pressures on the contact force are analyzed and discussed. lower sodium lunch meat options