| 摘要 |
<p>Pressure- and flow-regulating valve for automatic- or semiautomatic-cycle lubricating systems, principally characterized by being provided with a longitudinal bore subdivided into three aligned sections: in the intermediate section whereof there is coupled, with guided axial sliding, a piston element whose straight section has an area smaller than that of the intermediate bore section so as to permit oil to flow between the piston and the wall of the intermediate bore section; by the lower end of the piston terminating in an axial rod whose diameter is smaller than that of the piston to permit insertion of a coil spring around said rod; there being provided that the rod terminates in a spherical cap, intended to plug the last section of the longitudinal bore communicating with oil discharge when oil flows toward lubrication circuit and to re-open it when oil flow is interrupted.</p> |
