Patent ID: 6216741
Filing Date: 2001-04-17
Classification: F16K,G05D

Abstract:
A device for limiting the flow rate of a liquid, comprising:a substantially tubular and rotation-symmetrical housing defining an inlet opening and an outlet opening for the liquid;a substantially rotation-symmetrical first body, with the first body having a widest peripheral part, wherein the first body is guided for axial displacement and urged toward the inlet opening by a spring, and wherein the widest peripheral part of the first body is located at a distance from an inner wall of the housing; anda substantially annular second body disposed in a stationary position on the inner wall of the housing and defining a gap with the first body,wherein as liquid flow increases through the device the first body moves toward the second body to reduce a passage size of the gap defined by the first body and the second body, andwherein the first body and the second body are formed such that liquid flow in the device reverses direction at least once in an axial direction through the device.