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27 June, 2017

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Hydraulic pump lowers the noise level

01 May, 2001

Hydraulic pump lowers the noise level

Kawasaki has developed a medium-to-high-pressure hydraulic pump with a patented rotating group technology designed to reduce pressure pulsations in the fluid, and thus noise levels. The output flow pulsation of the K3VL pump is said to be essentially sinusoidal with a negligible high-frequency content, resulting in noise levels typically 5dB(A) lower than standard pump designs.

Noise is further reduced by the large surface area and hydrostatic bearing of the pillow-type support mechanism, which are said to reduce frictional loading and vibration. The open circuit, axial piston pumps have a rated pressure capability up to 320 bar. Solid pistons are designed to reduce dead volume under compression, and thereby raise volumetric efficiency. Opposed piston stroking reduces lateral deflections and swash plate loading. The pumps are available in displacements from 45-140 cc/rev, with a range of ISO and SAE inputs shafts, mounting flanges and through drives.




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