Class / Patent application number | Description | Number of patent applications / Date published |
251281000 | BALANCED VALVES | 20 |
20120145936 | Mixed Water Control Valve Having a Water Pressure Balance Function to Stabilize Water Temperature - A mixed water control valve for a faucet includes a valve housing, a control unit, and a balance unit. The valve housing has a mounting seat which has a receiving chamber and two water inlet holes. The balance unit includes a fixed sleeve secured in the receiving chamber, a pressure regulating sleeve movably mounted in the fixed sleeve, a balance baffle mounted in the pressure regulating sleeve, and two elastic members each mounted in the pressure regulating sleeve and each biased between the balance baffle and the mounting seat. Thus, the balance baffle is compressed between the elastic members which provide a buffering force to counteract a larger pressure applied on the balance baffle, so that the pressure regulating sleeve is moved smoothly and stably without producing resonant noise in the faucet. | 06-14-2012 |
251282000 | Reciprocating | 13 |
20080265199 | ZERO LEAKAGE BALANCE VALVE SYSTEM - A valve assembly for a hydraulic device. The valve assembly has a valve seat within a valve passageway used in combination with a spool. The spool has a first section wherein a flexible element is disposed within a cavity of the first section such that in a first position the spool and specifically the flexible element engages the valve seat to provide zero leakage from the valve passageway into a tank passageway. Additionally, the spool is designed to have an additional section at a second end to provide equal sealing areas at both the first and second ends of the spool to balance the forces within the valve passageway. | 10-30-2008 |
20100243936 | VALVE - A valve for use in connection with oil production and gas production comprising a valve housing ( | 09-30-2010 |
20110240897 | Pressure Limiting And Suction Valve Unit - A pressure limiting and suction valve unit includes a valve closing body including a valve closing face, which, together with a first valve seat lying opposite the valve closing face, forms a first sealing seat for sealing off a first pressure region from a second pressure region, a second valve seat defining a valve closing body orifice, the valve closing body orifice, together with a closing head formed on an axially movable valve pin, forms a second sealing seat for sealing off the second pressure region from the first pressure region, a spring plate connected to the valve pin and movable axially together with the valve pin, a first closing spring which is tension-mounted between the spring plate and the valve closing body and prestresses the valve pin against the second valve seat formed on the valve closing body, and a second closing spring which prestresses a valve subassembly against the first valve seat, wherein the valve pin is guided sealingly in at least one first guide portion formed in the valve closing body, wherein the second valve seat and the first guide portion are configured to be arranged on different sides of the second pressure region with respect to the direction of movement of the valve pin, wherein the first guide portion is configured to separate a volume connected to the first pressure region from one of the second pressure region and a volume connected to the second pressure region, and wherein a cross-sectional area of the first guide portion is configured to define a surface of a valve pin, said surface being acted upon by the pressure of the second pressure region, is smaller than a cross-sectional area of the second valve seat. | 10-06-2011 |
20110266479 | Hydraulic valve - The invention relates to a hydraulic valve for oscillating-motor camshaft adjuster The valve has a bush and a hollow piston with a piston bottom. The piston is axially movable within the bush by means of an actuator against the force of a screw-type pressure spring. The actuator is applied to the piston bottom. A sleeve secured in the bush is disposed inside the hollow piston and can be displaced relative to the piston. The wall of this sleeve has at least one through-opening, which leads to at least one opening of the hollow piston, which opening can guide a supply pressure (P) applied inside the sleeve alternatively to two sets of pressure chambers of the oscillating-motor camshaft adjuster. The sleeve has a sleeve bottom that seals off the inside space of hollow piston. | 11-03-2011 |
20130087729 | TWO SPOOL ENERGY SAVER VALVE - An energy saver valve includes a first spool ( | 04-11-2013 |
20130240769 | BALANCING VALVE - The invention provides a balancing valve. The balancing valve ( | 09-19-2013 |
20140131606 | Dummy Undersea Hydraulic Coupling Member - A dummy undersea hydraulic coupling member protects an opposing undersea hydraulic coupling member when the hydraulic lines are not operating. The dummy undersea hydraulic coupling member has a water displacement expansion chamber with a piston in the chamber that allows trapped water and/or air to move from the receiving chamber into the water displacement expansion chamber during connection of the dummy coupling member to the opposing coupling member. The piston has both a primary seal and a secondary, hydrostatic seal for preventing seawater from entering the portion of the water displacement expansion chamber that is contacted by the primary seal. | 05-15-2014 |
20140175315 | FLOW-ADJUSTING VALVE - A flow-adjusting valve including a valve base and a valve rod. The valve base has arranged within a valve cavity thereof a valve opening. The valve rod opens or shuts the valve opening. The valve rod is tube-shaped, and the lower part thereof is a cylinder. The valve base has arranged at circumferential positions around the valve opening a sealing stepped surface. A lower end face of the valve rod is sealedly in contact with or disengaged from the sealing stepped surface. Furthermore, the valve opening has protruding upwards along the axial direction thereof a sleeve protrusion part. The sealing stepped surface is arranged within the sleeve protrusion part. The structure of flow-adjusting valve on the one hand balances a refrigerant pressure exerted along the axial direction of the valve rod while on the other hand improves the service life and sealing performance of the valve rod. | 06-26-2014 |
20140252258 | HYDRAULIC VALVE - A valve formed with a valve sleeve formed with at least a first port, at least a second port and a pressure-compensated valve tappet movable between a closed position and at least one open position. The valve tappet is formed as two parts that move relative one another and are acted upon relative to one another by a hydrostatic pressure present at the first port. | 09-11-2014 |
20150083954 | PRESSURE EQUALIZING VALVE - A gate valve includes a body with a flow passage intersected by a gate cavity and a gate with an axis, the gate being axially movable in the gate cavity between a gate closed position and a gate open position. A lifting device is in engagement with a stein of the gate to move the gate to the gate open position. A port extends from a first external surface of the gate to a second external surface of the gate. A seal member is mechanically connected to the filling device, the seal member being moveable in response to axial movement of the lifting device between a seal open position where fluids can flow through the port and a seal closed position where the seal member blocks fluids from flowing through the port. | 03-26-2015 |
20160068145 | BALANCE VALVE AND VACUUM BOOSTER - The subject disclosure provides a balance valve and a vacuum booster. The balance valve includes a valve seat ( | 03-10-2016 |
20160076669 | BALANCED GLOBE VALVE ASSEMBLY - A balanced globe valve assembly includes a housing having an inlet and an outlet and a cage disposed within the housing between the inlet and the outlet. The cage includes a valve seat and at least one port formed therein. The balanced globe valve assembly further includes a valve member disposed within the cage and coupled to the housing. The valve member is movable within the cage between an open position in which the valve member is spaced from the valve seat and a closed position in which the valve member is seated within the valve seat so that the valve member blocks the at least one port. The valve member has a small opening formed therein to balance the valve member. A method of controlling a flow of fluid through a balanced globe valve assembly is further disclosed. | 03-17-2016 |
20160123478 | SLIDE VALVE - A slide valve is described, in particular, for an automatic transmission for motor vehicles. The slide valve includes a valve slide displaceable in a sliding channel and at least two adjacent connecting channels. The sliding channel and the valve slide are configured so that the valve slide in an opened slide position establishes a fluid connection between the two adjacent connecting channels, and the valve slide in the opened slide position is guided in a section of the sliding channel between the adjacent connecting channels. | 05-05-2016 |
251283000 | Rotary | 6 |
20080302991 | FORCE BALANCED BUTTERFLY PROPORTIONAL HOT GAS VALVE - A force balanced butterfly proportional hot gas valve is configured to receive pressurized gas from a pressurized gas source and to selectively divert the pressurized gas to one or both of two outlet nozzles. The valve includes a primary inlet, a flow passage coupled to the primary inlet, a portion of the flow passage formed into a power jet structure, a diffuser, first and second outlet nozzles coupled to the flow passage, and a butterfly element disposed at least partially within the flow passage and moveable therein to selectively divert gas flow to the first, second or both first and second outlet nozzles simultaneously. | 12-11-2008 |
20140138566 | CONTROL VALVE TRIM - Provided is a control valve trim, including a plug having a plurality of sections arranged in series along a longitudinal axis, wherein each of the plurality of sections has a diameter that is greater than the diameter of the preceding section, and a plurality of slots in the surface of each of the plurality of sections, and a liner, wherein the plug is disposed internal to the liner. | 05-22-2014 |
20140183395 | Rotary Ceramic Valve - A rotary ceramic tube valve is disclosed. The valve may have an outer shell and an inner ported cylinder which move in relation to each other of open and close ports on the valve. By turning the inner ported cylinder in relation to the outer shell, different orifices in the outer tube may be opened or closed. By coating the inner surface of the outer tube and the outer surface of the inner ported cylinder with a ceramic coating, friction in the valve may be reduced resulting in longer life, less heat generation, tighter tolerances and more reliable long term operation. Further, inner rotor | 07-03-2014 |
20140299806 | SHUT-OFF VALVE - A shut-off valve is provided. The shut-off valve includes a valve body having an inlet and an outlet, and a shut-off element, which is arranged in the valve body and through which a shut-off element through-channel is formed, which ends at its two ends in two mutually spaced first openings in an outer surface of the shut-off element. The shut-off element is movable between a shut-off position, in which the shut-off element blocks a fluid flow, and a flow position, in which the shut-off element allows a fluid flow between the inlet and the outlet of the valve body through the shut-off element through-channel. The shut-off element includes a first pressure-compensation channel opening with an inner end into the shut-off element through-channel, and the valve body includes a second pressure-compensation channel. | 10-09-2014 |
20150053879 | AUTOMATIC BALANCING BALL VALVE - An automatic balancing valve is described provided with a valve body having at least one inlet channel and an outlet channel for a heat transfer fluid, wherein the flow regulation is carried out by a ball shutter having an axial through channel with axis perpendicular to the rotation axis of the ball. The ball valve has at least one radial channel aligned with the rotation axis of the ball and is connected to the axial through channel. The radial channel has an outlet port having a circular cross-section which hydraulically connects the axial through channel of the ball with the outlet channel of the valve. | 02-26-2015 |
20150076382 | BUTTERFLY VALVE ARRANGEMENT - A butterfly valve with a housing having a bypass passage located within the housing of the valve. The passage extends from the normal flow path through the valve, either side of the butterfly valve plate so as to provide an alternative flow path. A cavity is located between distal ends of the passage. A valve head, located in the cavity is configured and arranged to be movable within the cavity between a closed position in which, the distal ends of the passage are fluidly disconnected through the passage and an open position in which the distal ends of the passage are fluidly connected through the passage. | 03-19-2015 |