Patent ID: 7527075
Filing Date: 2009-05-05
Classification: G05D,Y10T

Abstract:
1. Flow regulator ( 10 ) comprising a regulator housing ( 1 ) having a passage channel ( 2 ) in which there are two control devices ( 8 a , 8 b ) each having a central body ( 3 a ), surrounded by an annular throttle body ( 4 a ) made from elastic material, wherein the throttle body ( 4 a ) bounds a control gap ( 6 a ) between itself and an adjacent peripheral surface ( 5 a ) provided with control recesses ( 7 a ), which are spaced apart from each other in a circumferential direction and which are oriented in a flow direction (Pf 1 , Pf 2 ), a passage cross section of the control gap can be changed by the throttle body ( 4 a ) deforming under a pressure difference formed by a flow, the two control devices ( 8 a , 8 b ) are arranged one behind the other in a longitudinal extent of the passage channel ( 2 ), the two control devices ( 8 a , 8 b ) are constructed for at least one of different flow rates or different pressure ranges, and a first of the control devices ( 8 b ) has at least one bypass channel or a passage opening ( 11 ) for at least one of a lower flow rate or a lower pressure range, and the passage opening ( 11 ) can be opened and closed, and is opened for a higher flow rate or a higher pressure range and is closed for the lower flow rate or the lower pressure range.