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Class Information
Number: 137/101
Name: Fluid handling > Self-proportioning or correlating systems > Self-proportioning flow systems > Flow comparison or differential response > Flow dividers (e.g., reversely acting controls)
Description: Systems in which a flow is divided into a plurality of flow paths and the ratio between the flow in each branch maintained in response to means sensing differences in flow or pressure in each branch by throttling one branch an amount equal to the amount the other branch is opened.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8464740 Combustor fuel control systems with flow divider assemblies Jun. 18, 2013
8397739 N-channel flow ratio controller calibration Mar. 19, 2013
7553120 Hydraulic control unit for the arms of a grip and grip including said hydraulic unit Jun. 30, 2009
7072743 Semiconductor manufacturing gas flow divider system and method Jul. 4, 2006
7063100 Flow regulator with pressure relief combination valve Jun. 20, 2006
6857441 Fluid metering device Feb. 22, 2005
6662817 Gas-line system for semiconductor-manufacturing apparatus Dec. 16, 2003
6651688 Divider-combiner valve Nov. 25, 2003
6591850 Method and apparatus for fluid flow control Jul. 15, 2003
6345959 Pump with integral pilot operated priority pressure regulating valve Feb. 12, 2002
6289917 Proportional flow divider valve Sep. 18, 2001
6164310 Priority type flow dividing valve Dec. 26, 2000
5472009 Fluid regulator Dec. 5, 1995
5411050 Capacity fuse valve May. 2, 1995
5377717 Hydraulic flow control valve assemblies Jan. 3, 1995
5293952 Hydraulic fluid supply system for an installation in a motor vehicle having power assisted steering with a pressure regulation value connected to the main and secondary circuits Mar. 15, 1994
5285641 Flow dividing pump Feb. 15, 1994
5255700 Capacity fuse valve Oct. 26, 1993
5165233 Charge pressure priority valve Nov. 24, 1992
4924900 Adjustable ratio mixing valve May. 15, 1990
4917138 Priority flow control valve for hydraulic power circuits Apr. 17, 1990
4877057 Pressure equalizing valve Oct. 31, 1989
4858515 Priority valve for hydraulic installations Aug. 22, 1989
4807657 Automatic fluid flow regulator Feb. 28, 1989
4756330 Flow divider valve Jul. 12, 1988
4738330 Hydraulic drive system for use with vehicle power steering pump Apr. 19, 1988
4691730 Constant percentage flow divider Sep. 8, 1987
4665939 Priority control for hydraulic consumers May. 19, 1987
4658850 Flow control valve with switching valve Apr. 21, 1987
4655250 Open center unloading valve Apr. 7, 1987
4625747 Pressure responsive flow divider valve for servo-powered steering devices Dec. 2, 1986
4625748 Safety arrangement for power assisted steerings Dec. 2, 1986
4622992 Reaction control valve Nov. 18, 1986
4616671 Valve with flow force compensator Oct. 14, 1986
4579044 Two-speed shift valve Apr. 1, 1986
4566477 Fluid flow control apparatus Jan. 28, 1986
4564038 Hydraulic flow divider/integrator with regulating slide valves with single control edge for two or more consumers Jan. 14, 1986
4564039 Hydraulic differential locking device with adjustable sensitivity Jan. 14, 1986
4556078 Priority valve Dec. 3, 1985
4552168 Stabilizer for priority flow divider valve Nov. 12, 1985
4543976 Control valves for vehicle hydraulic systems Oct. 1, 1985
4541451 Priority valve Sep. 17, 1985
4510963 Proportional-flow electrohydraulic control Apr. 16, 1985
4503876 Control valve for vehicle hydraulic systems Mar. 12, 1985
4495961 Flow divider Jan. 29, 1985
4488569 Apparatus with staged pressure differential for controlling fluid flow Dec. 18, 1984
4465089 Flow divider and combiner for traction circuits Aug. 14, 1984
4446697 Hydraulic fan drive system including variable displacement pump May. 8, 1984
4440453 Hydraulic system for a vehicle Apr. 3, 1984
4420934 Automotive vehicle hydraulic system Dec. 20, 1983

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