# US 10,371,267 B2 · Rotary adjustable orifice plate valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,267 B2 - Document ID: US10371267B2 - Status: Granted - Kind: B2 - Application number: 15/411,836 - Filed: 2017-01-20 - Published: 2018-07-26 - Granted: 2019-08-06 - Earliest claimed: 2017-01-20 - Assignees: Hamilton Sundstrand Corporation - Applicants: Hamilton Sundstrand Corporation - Inventors: August M. Coretto; Peter M. Ballard; Aaron F. Rickis - Web page: https://patentgrep.com/patent/US10371267B2 ## CPC - F16K 3/085: {the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates} - F02C 7/232: Fuel valves {(control of fuel supply by means of fuel metering valves F02C9/263)}; Draining valves or systems (valves in general F16K) - F16K 3/08: with circular plates rotatable around their centres - F16K 3/10: with special arrangements for separating the sealing faces or for pressing them together - F05D 2250/36: in inner-outer relationship, e.g. shaft-bearing arrangements - F05D 2250/411: in rotation - F05D 2250/90: Variable geometry - F05D 2260/406: through hydraulic systems - F05D 2260/85: Starting - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A valve with a rotationally adjustable flow area can include a first member defining a first wall having a first opening therein, and a second member defining a second wall having a second opening therein, the first member being rotatable relative to the second member, and flow area through the valve being defined by fluidic communication between the first opening and the second opening that varies with relative rotational position between the first member and the second member. ## Claims ### Claim 1 A rotary adjustable plate orifice valve, comprising: a housing including a first fluid path opening and a second fluid path opening; a sleeve disposed at least partially within the housing and having a sleeve opening defined by a cam surface; and a spool disposed at least partially within the sleeve and the housing and configured to rotate relative to the sleeve, the spool including: a plate face that abuts the cam surface; and a plate orifice defined in the plate face and configured to be positioned to be partially in fluid communication with the sleeve opening and to be partially blocked by the cam surface, wherein an amount of open area of the plate orifice that is in fluid communication with the sleeve opening changes as a function of a rotational position of the orifice relative to the cam surface; wherein fluid can flow between the first fluid path and the second fluid path through the plate orifice, wherein the spool extends through the sleeve opening to contact the cam surface. ### Claim 2 (depends on 1) The valve of claim 1, wherein the sleeve further includes radial openings for receiving pressure from the second fluid path at the sleeve opening. ### Claim 3 (depends on 2) The valve of claim 2, wherein a filter is disposed over the radial openings. ### Claim 4 (depends on 1) The valve of claim 1, wherein the cam surface defines a spiral shape. ### Claim 5 (depends on 1) The valve of claim 1, wherein the plate orifice is circular in cross-sectional shape. ### Claim 6 (depends on 1) The valve of claim 1, wherein the spool includes a face seal in sealing communication with the housing. ### Claim 7 (depends on 1) The valve of claim 1, further comprising a ring seal disposed around an outer diameter of the sleeve in sealing communication with the housing. ### Claim 8 (depends on 1) The valve of claim 1, wherein the spool includes a threaded end opposite the plate face. ### Claim 9 (depends on 8) The valve of claim 8, further comprising a lock nut in threaded connection with the threaded end of the spool and configured to tighten the plate face of the spool against the cam surface of the sleeve. ### Claim 10 (depends on 9) The valve of claim 9, wherein the spool includes a ring seal disposed in sealing communication with an inner diameter of the sleeve. ### Claim 11 (depends on 9) The valve of claim 9, further comprising a cap configured to connect to the sleeve at an opposite end relative to the cam surface to cover the threaded end of the spool and the lock nut disposed on the threaded end. ### Claim 12 (depends on 1) The valve of claim 1, wherein flow from the first fluid path is filtered flow according to a filtration hierarchy for fuel control. ### Claim 13 A method, comprising: rotating a spool of a valve such that a plate orifice defined in a plate face thereof is positioned relative to a cam surface of a sleeve at a predetermined rotational position to block a predetermined amount of flow area of the plate orifice, the cam surface defines a sleeve opening, wherein the spool extends through the sleeve opening to contact the cam surface. ### Claim 14 (depends on 13) The method of claim 13, further comprising locking the spool in place after position the spool and the plate orifice in the predetermined rotational position. ### Claim 15 (depends on 13) The method of claim 13, wherein locking the spool includes tightening a lock nut threadably engaged with a threaded end of the spool against an inner surface of the sleeve to compress the plate face of the spool against the cam surface. ### Claim 16 A valve with a rotationally adjustable flow area, comprising: a first member defining a first wall having a first opening therein; and a second member defining a second wall having a second opening therein, the first member being rotatable relative to the second member, and flow area through the valve being defined by fluidic communication between the first opening and the second opening that varies with relative rotational position between the first member and the second member, wherein the first member extends through the second opening to contact the first and second walls together. ### Claim 17 (depends on 16) The valve of claim 16, further comprising a housing including a first fluid path opening and a second fluid path opening, wherein the first member includes a sleeve disposed at least partially within the housing, wherein the first wall includes a cam surface, wherein the first opening is a sleeve opening defined by the cam surface, and wherein the second member includes a spool disposed at least partially within the sleeve and the housing and configured to rotate relative to the sleeve, wherein the second wall is a plate face of the spool that abuts the cam surface, and wherein the second opening includes a plate orifice defined in the plate face and positioned to be partially in fluid communication with the opening and to be partially blocked by the cam surface, wherein an amount of open area of the orifice that is in fluid communication with the sleeve opening changes as a function of a rotational position of the orifice relative to the cam surface.