Patent ID: 8833729
Filing Date: 2014-09-16
Classification: F16K,G05D

Abstract:
1. A proportional throttle valve, comprising: a valve housing having a fluid inlet, a fluid outlet, a longitudinal bore defined by an inwardly and radially facing housing wall and a longitudinal axis; a valve piston enabling an orifice function and being movably guided and engaged by said housing wall in said valve housing for movement along said longitudinal axis; and a control piston of a flow regulator being located in said valve housing and forming a metering edge of said valve piston for connecting said fluid inlet to said fluid outlet, said control piston having a first portion movably guided in and engaging a radially facing wall of an axial bore in said valve piston and a second portion extending outside said axial bore and engaging said housing wall, said metering edge being adjacent a junction of said first and second portions.