Fuel metering valve with porous element

摘要: A fuel metering valve has a housing bore between an inlet and outlet which supportingly receives movable element including imperforate end plate annular, porous metal for regulating flow the outlet; includes axial reference surface thereon to overlap prevent therebetween. When is initially opened low rate position, moved with respect interpose predetermined planar extent of material limited fluid established by area interstices in rather than dimensional relationships walls outlet.