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公开(公告)号：US20240360764A1
公开(公告)日：2024-10-31
申请号：US18671288
申请日：2024-05-22
发明人： Viktor Kilchyk , Brent Merritt
CPC分类号： F01D5/02 , F01D11/02 , F05D2300/603
摘要： An impeller includes a hub. The hub has a first end and a second end and includes an impeller disk at the second end of the hub. The impeller disk includes a first annular protrusion extending from the impeller disk. A first pocket is in a radially outer side of the first annular protrusion. The impeller also includes a first preloading band positioned in the first pocket. The first preloading band encircles the radially outer side of the first annular protrusion. The impeller also includes blades connecting to a radially outer surface of the hub.
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公开(公告)号：US11988096B2
公开(公告)日：2024-05-21
申请号：US17841847
申请日：2022-06-16
发明人： Ravindra Shankar Ganiger , Neelesh Nandkumar Sarawate , Rahul Anil Bidkar , Narendra Anand Hardikar , Kevin Randall McManus , Steven Douglas Johnson , Prateek Jalan , Antonio Guijarro Valencia , Julius John Montgomery , Rodrigo Rodriguez Erdmenger , Jose Maria Rey Villazon
CPC分类号： F01D11/003 , F01D11/001 , F01D11/02 , F05D2220/323 , F05D2240/56
摘要： A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.
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3.发明公开公开(公告)号：US20240133311A1
公开(公告)日：2024-04-25
申请号：US18546534
申请日：2022-02-14
CPC分类号： F01D11/122 , F01D11/02 , F05D2230/237 , F05D2230/60
摘要： A distributor for a turbine of a turbomachine. The distributor includes a radially inner platform, a blade and a root which is coated with a track made of an abradable material. According to the invention, the distributor includes a leakage gas reintroduction duct. The duct includes an inlet through the track made of an abradable material, an outlet opening through a downstream surface of the root, and a duct intermediate portion which extends from the inlet up to the outlet. The duct intermediate portion is orientated with a tangential component.
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公开(公告)号：US11933180B2
公开(公告)日：2024-03-19
申请号：US17644630
申请日：2021-12-16
发明人： Ian Macfarlane , Eric Durocher , Guy Lefebvre
CPC分类号： F01D11/02 , F02C7/28 , F05D2220/323 , F05D2240/55
摘要： A labyrinth seal assembly comprising: an outer seal having a radially inner cavity surface, and an axial cavity surface inward of the radially inner cavity surface; a floating seal received by the outer seal so as to be movable in a radial direction relative to the outer seal, the floating seal having a radially outer seal surface spaced inwardly from the radially inner cavity surface, a radially inner surface inward of the radially outer seal surface, and an axial seal surface bearing against the axial cavity surface; and an inner seal received by the floating seal, the inner seal having a radially outer surface spaced inwardly from the radially inner surface, a first one of the radially outer surface and the radially inner surface defining one tooth projecting toward a second one of the radially outer surface and the radially inner surface to inward of the axial seal surface.
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公开(公告)号：US11813708B2
公开(公告)日：2023-11-14
申请号：US17475455
申请日：2021-09-15
发明人： Andrzej Marcin Ostrowski , Krzysztof Dynak , Michal Kowalczyk , Marek Miekus , Piotr Jerzy Steckowicz , Tomasz Michal Szewczyk
CPC分类号： B23P6/002 , B23K9/04 , F01D5/005 , F01D11/02 , F05D2230/80
摘要： A turbomachine diaphragm including a sealing section having a first end portion that extends to a second end portion through an intermediate portion; and at least one rail member including a first end section that extends from the first end portion of the sealing section to a second end section through an intermediate section having an inner surface section and an outer surface section, the second end section including multiple weld passes disposed on opposed sides of the second end section for mitigation of thermal tensions on the diaphragm, the multiple weld passes forming a cladding welded to the diaphragm, wherein the cladding includes a stainless austenitic steel.
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公开(公告)号：US20230279865A1
公开(公告)日：2023-09-07
申请号：US18197782
申请日：2023-05-16
申请人： Danfoss A/S
发明人： James Wilson , Jin Yan , Lin Xiang Sun , Ruiguo Gao , Brenden Richman
CPC分类号： F04D29/162 , F04D17/10 , F01D5/186 , F01D5/28 , F16J15/4472 , F05D2240/55 , F01D5/189 , F04D29/102 , F01D11/02
摘要： In some aspects, the techniques described herein relate to a refrigerant compressor, including: a stator; a rotor configured to rotate with respect to the stator; and at least one step seal between the rotor and the stator, wherein the step seal includes a first tooth and a second tooth extending from the rotor toward the stator, wherein a downstream surface of the first tooth and an upstream surface of the second tooth are arranged at an angle relative to one another, wherein the angle is less than 90°.
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公开(公告)号：US20230279781A1
公开(公告)日：2023-09-07
申请号：US17841847
申请日：2022-06-16
发明人： Ravindra Shankar Ganiger , Neelesh Nandkumar Sarawate , Rahul Anil Bidkar , Narendra Anand Hardikar , Kevin Randall McManus , Steven Douglas Johnson , Prateek Jalan , Antonio Guijarro Valencia , Julius John Montgomery , Rodrigo Rodriguez Erdmenger , Jose Maria Rey Villazon
CPC分类号： F01D11/003 , F01D11/02 , F01D11/001 , F05D2240/56 , F05D2220/323
摘要： A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.
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公开(公告)号：US20230272856A1
公开(公告)日：2023-08-31
申请号：US18313824
申请日：2023-05-08
申请人： ACD, LLC
发明人： Duane Bergmann , John Park , Asit Singhal , Geoff Legg
CPC分类号： F16J15/164 , F01D11/02
摘要： There is disclosed a labyrinth seal arrangement for gas turboexpanders and the like which reduces process gas losses. The labyrinth seal includes a plurality of axially spaced seal sets with teeth facing a seal member. A plurality of vent ports in between each seal set permits extraction of gradually lower pressure process gas.
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公开(公告)号：US11739654B2
公开(公告)日：2023-08-29
申请号：US17422407
申请日：2020-02-21
申请人： Danfoss A/S
发明人： Alonso Perez , Lin Xiang Sun , Jin Yan , Tianlei Li
IPC分类号： F01D11/12 , F01D11/02 , F01D15/00 , F16J15/447 , F25B31/00
CPC分类号： F01D11/122 , F01D11/02 , F01D15/005 , F16J15/447 , F25B31/00 , F05D2240/55
摘要： A compressor according to an exemplary aspect of the present disclosure includes, among other things, a rotor configured to rotate with respect to a stator, the stator having an abradable portion. At least one labyrinth seal is between the rotor and the stator, wherein the labyrinth seal comprises a plurality of teeth extending from the rotor toward the abradable portion.
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公开(公告)号：US20230193774A1
公开(公告)日：2023-06-22
申请号：US17644630
申请日：2021-12-16
发明人： Ian MACFARLANE , Eric DUROCHER , Guy LEFEBVRE
CPC分类号： F01D11/02 , F02C7/28 , F05D2220/323 , F05D2240/55
摘要： A labyrinth seal assembly comprising: an outer seal having a radially inner cavity surface, and an axial cavity surface inward of the radially inner cavity surface; a floating seal received by the outer seal so as to be movable in a radial direction relative to the outer seal, the floating seal having a radially outer seal surface spaced inwardly from the radially inner cavity surface, a radially inner surface inward of the radially outer seal surface, and an axial seal surface bearing against the axial cavity surface; and an inner seal received by the floating seal, the inner seal having a radially outer surface spaced inwardly from the radially inner surface, a first one of the radially outer surface and the radially inner surface defining one tooth projecting toward a second one of the radially outer surface and the radially inner surface to inward of the axial seal surface.
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