抄録
This paper deals with characteristics of hydrostatic bearings, which is used in water hydraulic valves for supporting a valve spool to avoid wear and sticking of the spool to the sleeve. The hydrostatic bearings should have a sufficient spring constant for the supporting, while minimizing the leakage flow through the clearance between the spool and the sleeve. To satisfy these requirements, a strict combination of dimensions of the hydrostatic bearings and the clearance is required. Using a newly designed experimental rig, pressure distribution in the clearance and leakage through the clearance for various eccentricities are measured and compared with a computer simulation. The experimental value of supporting force is calculated integrating the measured pressure. The result of this study will be used to improve accuracy of the designing.
