Results 91 to 100 of about 17,651 (213)

Automotive Stirling engine development program [PDF]

open access: yes
The major accomplishments were the completion of the Basic Stirling Engine (BSE) and the Stirling Engine System (SES) designs on schedule, the approval and acceptance of those designs by NASA, and the initiation of manufacture of BSE components.
Cronin, M.   +8 more
core   +4 more sources

Experimental investigation in axial piston pumps barrel dynamics

open access: yes, 2009
It is known that an axial piston pump barrel experiences small oscillations due to forces acting over it. Cavitation als o occurs in many cases, damaging the plate and barrel sliding surfaces and therefore reducing the volumetric and overall efficiency of the pump.
Bergadà Granyó, Josep Maria   +3 more
openaire   +1 more source

Dynamic Modeling of Inner Processes in Piston (Axial) Pump with Fluid Flow Regulation

open access: yesМеханика машин, механизмов и материалов, 2008
The model mathematics for estimation design parameters of piston (axial) pump with servosystem is proposed. The possibility of estimation influence parameters of pump and servosystem on dynamic features oft hydraulic drive.
M.I. Zhilevich, V.S. Shevchenko
doaj  

Condition monitoring of axial piston pumps based on machine learning-driven real-time CFD simulation

open access: yesEngineering Applications of Computational Fluid Mechanics
Condition monitoring of axial piston pumps is essential for the stable and safe operation of the entire hydraulic system in various electro-hydraulic equipment.
Wentao Wang   +3 more
doaj   +1 more source

Pump for delivering heated fluids [PDF]

open access: yes, 1973
A thermomechanical pump particularly suited for use in pumping a warming fluid obtained from an RTG (Radioisotope Thermal Generator) through science and flight instrumentation aboard operative spacecraft is described.
Sabelman, E. E.
core   +1 more source

Gear Pump Versus Variable Axial Piston Pump in Electro-Hydrostatic Servoactuators

open access: yesActuators
This paper presents a comparison of some different configurations of electro-hydrostatic actuators (EHA). The gear pump EHA has a simpler mechanical configuration, but the electronic power command circuits and the electric motor are in high demand due to
Alexandru Dumitrache   +4 more
doaj   +1 more source

Liquid Rocket Engine Turbopump Rotating-shaft Seals [PDF]

open access: yes
A monograph is organized and presents, for effective use in design, the significant experience and knowledge accumulated in development and operational programs to date.
Burcham, R. E., Keller, R. B., Jr.
core   +1 more source

Lubrication, Friction and Wear Characteristics of Textured Surface Slipper Pairs in Axial Piston Pumps

open access: yesLubricants
The study investigates the impact of textured surface parameters and pump operating parameters on the friction performance of slipper pairs in axial piston pumps.
Bin Bian   +5 more
doaj   +1 more source

Model reference adaptive control of axial piston pump

open access: yesIOP Conference Series: Earth and Environmental Science
Abstract The paper is devoted to synthesis and implementation of a model reference adaptive controller (MRAC) for real-time displacement volume regulation of an axial piston pump. The controller of the developed real-time system evaluates control signal values applied to the proportional spool valve.
A Mitov, Ts Slavov, J Kralev, Il Angelov
openaire   +1 more source

Development and demonstration of flueric sounding rocket motor ignition [PDF]

open access: yes
An analytical and experimental program is described which established a flueric rocket motor ignition system concept incorporating a pneumatic match with a simple hand pump as the only energy source.
Marchese, V. P.
core   +1 more source

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