# US 11,306,842 B2 · ACCV and a method for manufacturing the same

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- Number: US 11,306,842 B2
- Document ID: US11306842B2
- Status: Granted
- Kind: B2
- Application number: 16/384,161
- Filed: 2019-04-15
- Published: 2020-01-23
- Granted: 2022-04-19
- Earliest claimed: 2018-07-19
- Assignees: Hamilton Sundstrand Corporation
- Applicants: Hamilton Sundstrand Corporation
- Inventors: Zbigniew Minta; Sergey Mironets
- Web page: https://patentgrep.com/patent/US11306842B2

## CPC

- F01D 11/24: by selectively cooling-heating stator or rotor components
- F16K 27/00: Construction of housing (methods for welding housings B23K); Use of materials therefor
- F01D 17/145: {by means of valves, e.g. for steam turbines (valves in general F16K)}
- F16K 49/00: Means in or on valves for heating or cooling (heating or cooling of pipes or pipe systems F16L53/00; thermal insulation in connection with pipes or pipe systems F16L59/16)
- F16K 49/005: {Circulation means for a separate heat transfer fluid}
- F28F 7/02: Blocks traversed by passages for heat-exchange media {(F28D7/0008 takes precedence)}
- F05D 2230/30: with deposition of material
- F05D 2230/53: by integrally manufacturing a component, e.g. by milling from a billet or one piece construction
- F05D 2240/15: Heat shield
- F28F 2270/00: Thermal insulation; Thermal decoupling
- Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft
- Y10T 137/6416: With heating or cooling of the system
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- 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)}
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An active clearance control valve (ACC Valve) includes a valve housing with a thermal shield provided externally to said housing, wherein said valve housing and said thermal shield have been integrally formed as one component. This may be achieved using additive manufacturing methods. Cooling channels and/or ribs may also be provided on or in the thermal shield.

## Claims

### Claim 1

A method of making an active clearance control valve (ACC Valve) for a gas turbine engine comprising:
integrally forming, as one component, a valve housing and a thermal shield external to said housing; and
printing one or more ribs onto said thermal shield, said ribs thereby forming a first cooling channel (800) that extends between said valve housing (700) and said thermal shield (200);
wherein said one or more ribs are printed so as to extend helically between a first end of the valve housing to a second end of the valve housing.

### Claim 2 (depends on 1)

The method of claim 1, further comprising forming a plurality of cooling channels between said valve housing and said thermal shield.

### Claim 3

A method of making an active clearance control valve (ACC Valve) for a gas turbine engine comprising:
integrally forming via an additive manufacturing method, as one component, a valve housing and a thermal shield external to said housing; and
printing one or more ribs onto said thermal shield, said ribs thereby forming a first cooling channel that extends between said valve housing and said thermal shield;
wherein said first cooling channel is provided so as to extend helically between a first end of the valve housing to a second end of the valve housing.

### Claim 4

An active clearance control valve (ACC Valve) for a gas turbine comprising:
a valve housing; and
a thermal shield provided externally to said housing;
wherein said valve housing and said thermal shield have been integrally formed as one component via an additive manufacturing method;
wherein said thermal shield comprises one or more ribs provided thereon, said one or more ribs thereby forming a first cooling channel (800) that extends between said valve housing (700) and said thermal shield (200);
wherein said first cooling channel is provided so as to extend helically between a first end of the valve housing to a second end of the valve housing.