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90R075KA1NN80R4S1D03GBA171724 piston pump

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90R075KA1NN80R4S1D03GBA171724 piston pump

SERIES : 90R/90L
BRAND : Sauer Danfoss
Model Code : 90-R-075-KA-1-NN-80-R-4-S1-D-03-GBA-17-17-24
Model No.ldent No. : 83014185
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    1. Product Details
    2. Applicable Scene

    The exploration and utilization of low-gravity environments, such as those found on the Moon and Mars, present unique engineering challenges. One of the critical components for machinery operating in these extraterrestrial settings is the hydraulic oil pump. Hydraulic systems are widely used in aerospace applications for their efficiency and reliability, but their performance can be significantly affected by the reduced gravitational forces. This article explores the strategies for optimizing hydraulic oil pumps for low-gravity environments.
    90-R-075-KA-1-NN-80-R-4-S1-D-03-GBA-17-17-24
    90R075KA1NN80R4S1D03GBA171724
    Understanding the behavior of hydraulic fluids in low-gravity conditions is essential. In Earth’s gravity, hydraulic fluids settle, allowing for a consistent flow and pressure throughout the system. However, in low-gravity environments, fluids do not behave in the same manner; they tend to form bubbles and can create unpredictable flow patterns due to the absence of gravitational pull to maintain pressure and direction. Consequently, optimizing pump design and fluid dynamics becomes crucial.
    90R075 hydraulic pump
    83014185
    One of the first strategies is to modify the design of hydraulic pumps to ensure reliable performance in low-gravity conditions. Gear pumps, for instance, can be adjusted to have tighter tolerances and more robust seals to reduce the risk of cavitation and fluid loss. Additionally, diaphragm pumps may be employed as they can maintain a more consistent flow without being significantly affected by the lack of gravity. These pump types can also be designed to incorporate self-priming features, which are beneficial for environments where fluid may not settle predictably.
    Another important factor to consider is the selection of hydraulic fluids. Traditional hydraulic oils may not perform optimally in low-gravity settings. Researchers are exploring specialized fluids with lower viscosities that can minimize the effects of low gravity on fluid behavior. These fluids should also possess properties like non-volatile characteristics and a wide temperature range to ensure reliability in the extreme conditions often encountered on celestial bodies.

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