| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137625210 | Rotary valve | 10 |
| 20090107569 | Valve having a rotary slide - Valve with a rotary slide. The rotary slide comprises a conduction chamber, which is connected to a first infeed and can optionally be connected to one of a plurality of outlets by changing the rotational position. The rotary slide is designed so that the when pressure is applied the area ratios ensure that a partial pressure equalization always takes place. | 04-30-2009 |
| 20090217995 | Rotary slide valve, in particular for hydraulic power assisted steering systems in motor vehicles - A rotary slide valve, in particular for hydraulic power-assisted steering systems in motor vehicles, having a control bush and a rotary slide which is adapted to rotate within the control bush about a common longitudinal axis, the rotary slide and the control bush including a plurality of control edges, of which one control edge each of the control bush forms control gaps with a nearest control edge of the rotary slide, and adjacent control gaps of supply ports for a hydraulic fluid determining a control geometry, is characterized in that the rotary slide valve has at least two different control geometries. | 09-03-2009 |
| 20140137967 | Valves Having Protective Coatings - A shear valve for use in a high performance liquid chromatography system. The shear valve includes a first valve member having a plurality of first fluid-conveying features, and a second valve member having one or more second fluid-conveying features. The second valve member is movable, relative to the first valve member, between a plurality of discrete positions such that, in each of the discrete positions, at least one of the one or more second fluid-conveying features overlaps with multiple ones of the first fluid conveying features to provide for fluid communication therebetween. At least one of the first and second valve members is at least partially coated with a protective coating that includes an adhesion interlayer and a diamond-like carbon (DLC) layer. The DLC layer is deposited on the adhesion interlayer via filtered cathodic vacuum arc (FCVA) deposition. | 05-22-2014 |
| 137625220 | Plug type | 7 |
| 20160178074 | RAPID EXHAUST VALVE FOR RAILWAY VEHICLES AND PIPING SYSTEM OF RAILWAY VEHICLE | 06-23-2016 |
| 137625230 | For plural lines | 4 |
| 20090199915 | FLUID CONTROLLER WITH MULTIPLE FLUID METERS - A fluid controller includes a first fluid meter defining a first plurality of volume chambers and a second fluid meter defining a second plurality of volume chambers. A selector assembly, disposed between the first fluid meter and the second fluid meter, includes a selector plate defining a bore and a selector valve disposed in the bore. The selector valve is adapted for rotational movement between a first position and a second position and includes a first face and an oppositely disposed second face. The selector valve defines a plurality of thru-passages that extend axially through the first and second faces and that is adapted to provide fluid communication between the first and second volume chambers in the first position. The selector valve defines a groove disposed on the second face. The groove recirculates fluid from the second plurality of volume chambers when the selector valve is in the second position. | 08-13-2009 |
| 20140076438 | Combined Changeover And Control Valve - A slim profile rotary control valve capable of independently modulating fluids into a single heat exchanger from two different and distinct systems that utilize the same type of heat transfer fluid. The valve is capable of monitoring both the supply and return fluid temperatures as well as the mass flow to enable the valve controller to optimize system's energy efficiency. It eliminates the use of multiple valves currently used in a conventional changeover system and automated control of valve positioning works much superior to existing valves. The housing and inner cylinder have tapered profiles to enable rotary sealing between the inlet and outlet ports. The housing has flow characterization profiles machined into the outlet ports thus eliminating the need for characterization disks. The rotary valve has a geometry that allows for a no flow dead zone when no heat exchange is so demanded. | 03-20-2014 |
| 20150083256 | DIRECT DRIVE ROTARY VALVE - A rotary valve comprises a bushing and a cylindrical spool rotatably received by the bushing. The rotary valve avoids redundant control edge pairs by having exactly one first supply edge pair (P-C1) for controlling a first fluid supply path, exactly one second supply edge pair (P-C2) for controlling a second fluid supply path, exactly one first return edge pair (C2-R1) for controlling a first fluid return path, and exactly one second return edge pair (C1-R2) for controlling a second fluid return path. A first angle between the first supply edge pair and the first return edge pair, and a second angle between the second supply edge pair and the second return edge pair, are each greater than or equal to 120 degrees and less than 180 degrees. Geometric simplicity is achieved by tolerating a limited degree of force imbalance in valve operation. | 03-26-2015 |
| 20150345649 | Combined Control and Flow Sensing Valve - A slim profile rotary control valve capable of independently modulating fluids into a single heat exchanger from two different and distinct systems that utilize the same type of heat transfer fluid. The valve is capable of monitoring both the supply and return fluid temperatures as well as the mass flow to enable the valve controller to optimize system's energy efficiency. It eliminates the use of multiple valves currently used in a conventional changeover system and automated control of valve positioning works much superior to existing valves. The housing and inner cylinder have tapered profiles to enable rotary sealing between the inlet and outlet ports. The housing has flow characterization profiles machined into the outlet ports thus eliminating the need for characterization disks. The rotary valve has a geometry that allows for a no flow dead zone when no heat exchange is so demanded. | 12-03-2015 |
| 137625240 | Axial and radial flow | 2 |
| 20120266988 | INTEGRATED ROTARY VALVE - A system in some embodiments includes a machine block comprising features configured to support moving machine components within a lubricating fluid, wherein the machine block includes an integral valve block configured to route the lubricating fluid through a first filter without a second filter and configured to route the lubricating fluid through the second filter without the first filter. Further embodiments include a method that includes switching circulation of a lubricant between a first filter and a second filter in response to an angular position of a valve disposed in a valve block integral to a machine block having moving components lubricated by the lubricant. | 10-25-2012 |
| 20150323086 | SINGLE AND GROUPED PRESSURE VALVES - This disclosure provides example methods, devices, and systems for a single and grouped pressure valve. In one embodiment, a pressure valve may include a housing having a first input port and a plurality of output ports and defining a cavity disposed therein; a flow coupler disposed in the cavity of the housing and having a passage transversely disposed therethrough, wherein the flow coupler is movable within the cavity of the housing; wherein a first alignment position of the flow coupler in the cavity of the housing allows fluid flow from the first input port of the housing through the passage of the flow coupler to all of the plurality of output ports of the housing; and wherein a second alignment position of the flow coupler in the cavity of the housing allows fluid flow from the first input port of the housing through the passage of the flow coupler to one of the plurality of output ports of the housing. | 11-12-2015 |
