Method of controlling bypass flow and article employing same

F - Mech Eng,Light,Heat,Weapons – 16 – K

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F16K 31/00 (2006.01) F16K 7/00 (2006.01) F16K 17/34 (2006.01) G05D 7/01 (2006.01)

Patent

CA 1100013

76-CON-365 APPLICATION OF: LAWRENCE A. KOLZE FOR: METHOD OF CONTROLLING BYPASS FLOW AND ARTICLE EMPLOYING SAME ABSTRACT A flow control device having a bypass flow feature effective for achieving controlled flow at relatively low pressure differentials. A resilient flow control member having a recessed, downstream face is contained within a cylindrical fluid chamber defined by a housing having an inlet and outlet passageway. A plurality of lobes formed around the periphery of the flow control member permit bypass flow through the circumferential spaces between lobes and the internal diameter of the fluid chamber. The flow control member has a centrally located orifice axially aligned with the inlet and outlet passageways of the housing. A plurality of projections are formed on the downstream face of the control member and are located near the outer periphery thereof while another set of projections, also located on the downstream face of the control member, are spaced closely adjacent the orifice therethrough. The inner group of projections coacts with the resilient flow control member as it deflects axially to provide and maintain a predetermined bypass flow characteristic across a wide range of differential pressures.

315118

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