-
公开(公告)号：US20170218980A1
公开(公告)日：2017-08-03
申请号：US15492281
申请日：2017-04-20
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tibor URAC
CPC classification number: F04D29/667 , F01D5/045 , F01D5/046 , F02C6/08 , F04D29/284 , F04D29/321
Abstract: A compressor rotor of a gas turbine engine includes a rotor body having a face adapted to face an adjacent rotor. The rotor body extends radially between an outer peripheral rim surface and an inner rim surface. The inner rim surface defines a bore of the rotor body. A plurality of blades extends radially from the outer peripheral rim surface. A plurality of anti-vortex fins extends axially from the face of the rotor body facing the adjacent rotor. The plurality of anti-vortex fins forms a plurality of open radial passageways. The plurality of anti-vortex fins extends axially to a predetermined thickness such that, when assembled with the second rotor, axial extremities of the plurality of anti-vortex fins being in close proximity with the adjacent rotor and the adjacent rotor closes the radial passageways. A method of providing a first rotor for assembly with a second facing rotor of a compressor rotor assembly is also presented.
-
公开(公告)号：US20160186865A1
公开(公告)日：2016-06-30
申请号：US15066463
申请日：2016-03-10
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Richard A. KOSTKA , Dean CARPENTER , Tibor URAC , Adam LOGAN , Aaron GREY
IPC: F16J15/44
CPC classification number: F16J15/445 , F01D11/003 , F01D11/02 , F01D11/025 , F16J15/164 , F16J15/346 , F16J15/441 , F16J15/443 , Y10T29/49716
Abstract: A controlled gap seal device is adapted to surround a shaft with an annular seal element. A ring is positioned on an outer surface of the seal element, the ring adapted to modify a diametrical dimension of the seal element by thermally expanding/contracting as a function of temperature variations. A housing assembly has an interior enclosing the seal element and the ring, with the seal configured to be generally stationary in the interior. The housing assembly has an air inlet and air outlet in fluid communication with a surrounding environment for directing a flow of gas from the surrounding environment onto the ring to controllably cool and shrink the ring. A method for modifying a diameter of a controlled gap seal relative to the shaft is also provided.
Abstract translation: 受控间隙密封装置适于围绕具有环形密封元件的轴。 环位于密封元件的外表面上，该环适于通过热膨胀/收缩作为温度变化的函数来改变密封元件的直径尺寸。 壳体组件具有封闭密封元件和环的内部，其中密封构造成在内部基本上是静止的。 壳体组件具有与周围环境流体连通的空气入口和空气出口，用于将来自周围环境的气体流引导到环上以可控制地冷却和收缩环。 还提供了一种用于改变相对于轴的受控间隙密封件的直径的方法。
-
公开(公告)号：US20220268285A1
公开(公告)日：2022-08-25
申请号：US17180262
申请日：2021-02-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tibor URAC , Bernard CHOW
Abstract: A centrifugal compressor, has: an impeller; and a housing including: a shroud extending between a first end and a second end; a structural member having an outer end securable to a casing of the gas turbine engine, an inner end of the structural member intersecting the rear side of the shroud; and a reinforced region at the location where the structural member and the rear side of the shroud intersect, a thickness of the reinforced region in a direction normal to the gaspath side greater than a nominal thickness of the shroud, the reinforced region defining a curved surface extending from a first location on the structural member to a second location on the rear side of the shroud, a portion of the curved surface having a radius that increases from a first radius to a second radius at the second location.
-
公开(公告)号：US20210180467A1
公开(公告)日：2021-06-17
申请号：US16713493
申请日：2019-12-13
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tibor URAC
Abstract: An abradable layer for a rotor case of a gas turbine engine has a base of a high density abradable material axially spanning a central portion of the blade tip and having shallow annular pockets of a less durable abradable material of a lower density axially spanning the leading and trailing edges of the blade tip.
-
公开(公告)号：US20210156272A1
公开(公告)日：2021-05-27
申请号：US16692178
申请日：2019-11-22
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tammy YAM , Tibor URAC , Paul AITCHISON
Abstract: A vane configured to be disposed in a gas path defined in part by an inner surface of a case of a gas turbine engine is provided. The vane comprises a vane body configured to extend through an aperture in the case and a vane head disposed at an end of the vane body. The vane head has an abutting surface configured to contact an outer surface of the case when the vane body extends through the aperture, and a groove configured to receive a sealing member. The groove opens to the abutting surface and is outwardly open relative to an inner region surrounded by the groove. The groove has an inner seating surface that hinders movement of the sealing member toward the abutting surface and can facilitate installation of the vane in the engine.
-
Patent Agency Ranking
公开(公告)号：US20210054762A1
公开(公告)日：2021-02-25
申请号：US16660990
申请日：2019-10-23
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Richard IVAKITCH , Tibor URAC
Abstract: A fancase surrounds a set of fan blades mounted for rotation about a central axis of a turbine engine. The fancase has an annular casing structure having an inner wall defining an outer flow boundary surface of a gaspath. An annular recess is defined in the inner wall. A metallic bumper is disposed in the annular recess and bonded to the annular casing structure for limiting fan orbiting during fan unbalanced conditions.
-
公开(公告)号：US20200072243A1
公开(公告)日：2020-03-05
申请号：US16543897
申请日：2019-08-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tibor URAC , Esther LEUNG
Abstract: A variable guide vane (VGV) apparatus has a variable guide vane (VGV) rotatable about a vane rotation axis. An actuating arm is mounted to the VGV. The actuating arm has a fork defining a slot for receiving a drive pin. The slot has a curved contour configured to act as a vane angle schedule adjustment.
-
公开(公告)号：US20200072074A1
公开(公告)日：2020-03-05
申请号：US16543887
申请日：2019-08-19
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Tibor URAC , Esther LEUNG
Abstract: A variable guide vane (VGV) apparatus has a variable guide vane (VGV) rotatable about a vane rotation axis. An actuating arm is mounted to the VGV. The actuating arm has a fork defining a slot for receiving a drive pin. The slot is profiled to accommodate angular misalignment between the pin and the fork throughout a range of motion of the associated pin along the slot.
-
公开(公告)号：US20190107123A1
公开(公告)日：2019-04-11
申请号：US15726819
申请日：2017-10-06
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Thomas VEITCH , Farid ABRARI , Ernest ADIQUE , Daniel FUDGE , Kari HEIKURINEN , Paul STONE , Ignatius THERATIL , Peter TOWNSEND , Tibor URAC
Abstract: A fan for a gas turbine engine comprises blades distributed around a hub. The blades include first and second blades, having geometric parameters and/or material properties that differ from each other to frequency mistune the fan. The blades are distributed about the hub with at least one second blade between adjacent first blades. The leading edge of the airfoil of the second blades is disposed axially aft of the corresponding leading edge of the first blades in at least a portion of the blade span.
-
公开(公告)号：US20190085708A1
公开(公告)日：2019-03-21
申请号：US15707133
申请日：2017-09-18
Applicant: PRATT & WHITNEY CANADA CORP.
Inventor： Thomas VEITCH , Farid ABRARI , Ernest ADIQUE , Paul AITCHISON , Daniel FUDGE , Kari HEIKURINEN , Paul STONE , Tibor URAC
CPC classification number: F01D5/288 , F01D5/141 , F01D5/16 , F01D5/26 , F05D2220/3216 , F05D2230/90 , F05D2240/301 , F05D2260/961 , F05D2300/133 , F05D2300/143 , F05D2300/16
Abstract: A compressor rotor for a gas turbine engine has blades circumferentially distributed around and extending a span length from a central hub. The blades include alternating first and second blades having airfoils with corresponding geometric profiles. The airfoil of the first blade has a coating varying in thickness relative to the second blade to provide natural vibration frequencies different between the first and the second blades.
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.021 seconds)
