Dual, concentric poppet valves, in order to the ratio of two fluid flows via an operating range of a valve opening to be kept substantially constant

摘要

The dual, concentric plate valve with:a housing (45) with an internal bore (55) and a sealing surface (56), which surrounds the inner bore;a first component (46), which in the inner bore (55) is axially displaceable relative to the housing (45) is mounted, wherein the first component is a first sealing surface (70), which is arranged such that it tightly to the housing surface (56) can be moved towards and away from the a first annular gap with a variable surface (o₁) to define between them, and the first component (46) in a concentric internal bore (72) having a second sealing surface (71), which surrounds the inner bore;a second component (48), which in the inner bore (72) of the first component to the coaxial movement relative to this internal bore is displaceable, the second component consists of a sealing surface (83) which, for the movement towards and away from the second sealing surface (71) of the first component (46) is arranged to a second annular gap with a variable surface (o₂) between them...