Flow divider valve assembly
AssigneeZahnradfabrik Friedrichshafen AG
InventorDieter Burckhardt
Life of this patent
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Abstract
The ratio between flow rates of divided flow streams established by a flow divider valve is selectively changed through a manually adjustable control valve to establish in adjusted ratio that is maintained constant for any adjusted position of the control valve. The relative flow areas of throttling passages are adjusted by the control valve to establish a predetermined pressure differential causing a corresponding change in restricted flow areas through which the divided flow streams are conducted under the constant flow rate ratio.
Claims5
A flow divider valve assembly having an inlet (2), distributor outlets (3 and 4), a valve housing (1) connected to the inlet and outlets, an operating piston device (10) within the valve housing including pressure chambers (21 and 22) respectively connected by restricted passages (30 and 31) to the distributor outlets, compensating chamber means (23 and 24) connected to said pressure chambers for shifting the operating piston device to maintain a constant ratio between the flow rates of the divided flow streams delivered to said distributor outlets, the improvement residing in a control valve (5) floatingly mounted in the valve housing having a central portion connected to the inlet, valve adjusting means (17-20) connected to the central portion of the control valve for displacement thereof to an adjusted position, supply conduits (8 and 9) connecting the two pressure chambers of the operating piston device to said control valve, and throttling passage means (6 and 7) located upstream of said supply conduits for conducting the divided flow of fluid from the inlet to the supply conduits.
Dependencies are inferred from the claim text.