This chapter presents characteristics of positive displacement pumps and centrifugal pumps. The effects of viscosity, specific gravity, and system resistance on performance are described. Flow from a positive displacement (PD) pump can be produced either through rotary or reciprocating action. Rotary ...
Generation and propagation of fluid-borne pressure ripple in fluid power systems caused by a pump (1st report, experimental determination of transfer matri... All positive displacement pumps generate a flow ripple which interacts with the wave transmission characteristics of the connected circuit to pro...
pasteregimeresulthinderedsettlingvelocitieshighpressuregradients.hinderedsettlingvelocityallowspastesconventionalslurrytransporta-tiohvelocitieshighpressuregradientswithinpipelinegenerallynecessitatepositivedisplacementpumps.velocityprofiletypicalBingham-typepastecentralcoremovesconstantvelocity,whilevelocityprofilearoundvaryrelativeshear...
This study conducts a fluid analysis of multistage designs for a Roots pump, a type of positive displacement pump applied in blower and vacuum pumps. After a rotor profile is generated based on a mathematical model of a rotor, a three-dimensional numeric
Dynamic Response Analysis of the Bi-Tandem Axial Piston Pump with Dual-Loop Positive Flow Control under Pressure Disturbance The bi-tandem axial piston pump is an indispensable powerhouse in high-pressure and high-power engineering hydraulic systems, with its output flow response... ZY Sun,Q Zeng...
The main contents of this dissertation are shown as follows:① Based on the definition of suction capacity of positive displacement machine,the screw pump suction capacity calculation model has been set up. The impacts of screw speed, screw helix angle, the transmission medium, etc., on the ...
apositive displacement pump, an electric pump for engine 容积式泵浦,一个电泵浦为引擎[translate] aJohn Laurinitis 约翰Laurinitis[translate] a一个永不背叛的女孩 Never betrays girl[translate] abut most of all love give you memories you could never forget! 正在翻译,请等待... ...
26 investigated the relationship between the deformation of crushed gangue and the stress level and gradation characteristics through lateral compression tests. The research findings indicate that the stress of crushed gangue exhibits exponential growth with increasing strain, and there is a positive ...
摘要 The variable displacement pump,driven by engine which is used as the power source in traditional hydraulic excavator,... 收藏 全部来源 求助全文 知网 journal.yeyanet.com.cn 相似文献 参考文献 Studies on Ha...
In one embodiment, a positive displacement pump is in communication with the controller and is adjusted to vary the fluid flow rate through the orifice in a programmed sequence, representing a range of fluid velocities through the orifice. The microcontroller receives the vibration data from the sen...