PL3964716T3 - Wnęka części wylotowej wirnika z recyrkulacją przepływu - Google Patents

Wnęka części wylotowej wirnika z recyrkulacją przepływu

Info

Publication number
PL3964716T3
PL3964716T3 PL21195617.2T PL21195617T PL3964716T3 PL 3964716 T3 PL3964716 T3 PL 3964716T3 PL 21195617 T PL21195617 T PL 21195617T PL 3964716 T3 PL3964716 T3 PL 3964716T3
Authority
PL
Poland
Prior art keywords
cavity
flow recirculation
exducer
impeller
impeller exducer
Prior art date
Application number
PL21195617.2T
Other languages
English (en)
Inventor
Hien Duong
Original Assignee
Pratt & Whitney Canada Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pratt & Whitney Canada Corp. filed Critical Pratt & Whitney Canada Corp.
Publication of PL3964716T3 publication Critical patent/PL3964716T3/pl

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PL21195617.2T 2020-09-08 2021-09-08 Wnęka części wylotowej wirnika z recyrkulacją przepływu PL3964716T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17/013,991 US11268536B1 (en) 2020-09-08 2020-09-08 Impeller exducer cavity with flow recirculation

Publications (1)

Publication Number Publication Date
PL3964716T3 true PL3964716T3 (pl) 2025-06-23

Family

ID=77710443

Family Applications (1)

Application Number Title Priority Date Filing Date
PL21195617.2T PL3964716T3 (pl) 2020-09-08 2021-09-08 Wnęka części wylotowej wirnika z recyrkulacją przepływu

Country Status (4)

Country Link
US (1) US11268536B1 (pl)
EP (1) EP3964716B1 (pl)
CA (1) CA3123121A1 (pl)
PL (1) PL3964716T3 (pl)

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* Cited by examiner, † Cited by third party
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US11187247B1 (en) * 2021-05-20 2021-11-30 Florida Turbine Technologies, Inc. Gas turbine engine with active clearance control
CN115628132B (zh) * 2022-11-01 2025-04-25 中国航发湖南动力机械研究所 可调节的压气机环腔引气结构
WO2024163441A1 (en) * 2023-01-31 2024-08-08 Ohio State Innovation Foundation Ported shroud centrifugal compressor
US20260036133A1 (en) * 2024-08-02 2026-02-05 Pratt & Whitney Canada Corp. Aircraft gas turbine engine impeller with a trailing edge that is non-linear or angled or irregularly-shaped
US12504024B1 (en) 2025-05-15 2025-12-23 Honeywell International Inc. Diffusers, gas turbine engines comprising the same, and methods for operation thereof

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Also Published As

Publication number Publication date
EP3964716A1 (en) 2022-03-09
CA3123121A1 (en) 2022-03-08
US11268536B1 (en) 2022-03-08
EP3964716B1 (en) 2025-03-19
US20220074423A1 (en) 2022-03-10

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