CN114483604B - Bidirectional flow dividing impeller capable of axially and radially guiding flow - Google Patents

Bidirectional flow dividing impeller capable of axially and radially guiding flow Download PDF

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Publication number
CN114483604B
CN114483604B CN202210002223.6A CN202210002223A CN114483604B CN 114483604 B CN114483604 B CN 114483604B CN 202210002223 A CN202210002223 A CN 202210002223A CN 114483604 B CN114483604 B CN 114483604B
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China
Prior art keywords
flow
axial
impeller
radial
mounting
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Active
Application number
CN202210002223.6A
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Chinese (zh)
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CN114483604A (en
Inventor
韩春江
钟仁志
袁军
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Xinlei Compressor Co Ltd
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Xinlei Compressor Co Ltd
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Publication of CN114483604A publication Critical patent/CN114483604A/en
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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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/053—Shafts
    • 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
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/30—Vanes
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • F04D29/386—Skewed blades
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model discloses a bidirectional flow-dividing impeller capable of guiding flow axially and radially, which is characterized by comprising an impeller disc, wherein a radial flow-guiding surface is arranged on the impeller disc, the radial flow-guiding surface is a rotating surface, radial flow-dividing blades are arranged on the radial flow-guiding surface, a mounting center hole is formed in the axis of the impeller disc, an axial flow impeller is arranged in the mounting center hole, the axial flow impeller comprises a mounting seat and axial flow blades which are arranged in a cylindrical array around the mounting seat, the outer ends of the axial flow blades are fixed on the wall of the mounting center hole, and a flow-distributing part corresponding to the axial flow blades is arranged at the tail end of the mounting center hole. The utility model has the advantages of being capable of dividing and providing radial air flow and axial air flow, preventing the axial center of the centrifugal impeller from gathering air, providing stable axial air flow and providing possibility for the heat dissipation of the axial air flow in the motor.

Description

Bidirectional flow dividing impeller capable of axially and radially guiding flow
Technical Field
The utility model relates to the technical field of impeller structures, in particular to a bidirectional flow dividing impeller capable of guiding flow axially and radially.
Background
In the prior art, the centrifugal impeller is generally of a radial structure, and is thrown out radially after air is introduced into the structure, whether the centrifugal impeller is a vacuum pump or an air compressor, the centrifugal impeller is usually used by matching a volute and an impeller with a motor, the air is directly discharged from the volute after the air is introduced into the impeller, and air flow does not pass through the motor, so that the cooling efficiency of the motor is lower. And when the complete radial centrifugal impeller conveys a medium with higher output gas content, the axis of the impeller is easy to collect gas, so that equipment surge and even cutoff are caused.
In the Chinese patent literature, the patent with the authority of CN214145916U in 2021, 9 and 7 is entitled "impeller for foam delivery pump", and the application discloses an impeller for foam delivery pump, comprising a rear cover plate and a blade arranged on the front end surface of the rear cover plate; the circumference of the front end face of the rear cover plate is provided with short blades and long blades which are alternately arranged, the short blades and the long blades extend inwards and anticlockwise spirally from the outer side of the front end face of the rear cover plate, and the inner side of each short blade on the rear cover plate is axially provided with an exhaust hole respectively; the long vane includes a centrifugal section at an outer end and a suction section at an inner end. The defects are that: 1. the exhaust hole is far away from the center of the impeller, and the exhaust capacity is not reliable; 2. the hole-shaped structure of the exhaust hole is not beneficial to air intake and exhaust, and stable and reliable axial airflow cannot be formed.
Disclosure of Invention
Based on the defects in the prior art, the utility model provides the bidirectional flow dividing impeller capable of axially and radially guiding flow, which can divide and provide radial air flow and axial air flow, can prevent the axial center of the centrifugal impeller from gathering air, can provide stable axial air flow and can provide possibility for heat dissipation of the axial air flow in the motor.
In order to achieve the above object, the present utility model adopts the following technical scheme.
The bidirectional flow distribution impeller is characterized by comprising an impeller disc, wherein a radial flow distribution surface is arranged on the impeller disc, the radial flow distribution surface is a rotary surface, radial flow distribution blades are arranged on the radial flow distribution surface, an installation center hole is formed in the axis of the impeller disc, an axial flow impeller is arranged in the installation center hole and comprises an installation seat and axial flow blades which are arranged in a cylindrical array around the installation seat, the outer ends of the axial flow blades are fixed on the wall of the installation center hole, and flow distribution parts corresponding to the axial flow blades are arranged at the tail ends of the installation center hole. Radial air flow and axial air flow can be provided in a split mode, air gathering of the axis of the centrifugal impeller can be prevented, stable axial air flow can be provided, and heat dissipation of the axial air flow in the motor is possible.
Preferably, the axial flow blade comprises a connecting end face and two opposite guide curved surfaces, wherein the connecting end face is attached to the hole wall of the installation center hole, the upper end and the lower end of the two guide curved surfaces are intersected in an acute angle, and the edges of the outer ends of the two guide curved surfaces are respectively intersected with the edges of the connecting end face. The acute angles of the two diversion curved surfaces are intersected to form a reliable diversion angle, so that wind resistance is reduced, the diversion curved surfaces are reliably diversion, and the stability and reliability of axial airflow are ensured.
Preferably, the mounting seat is cylindrical in shape, the mounting seat is coaxial with the mounting center hole, and the upper edge and the lower edge of the axial flow blade are parallel to each other. The cylindrical mounting seat is convenient to set and form, is favorable for controlling the coaxiality of the mounting center hole, and the axial flow blades with the upper end edge and the lower end edge being parallel are provided with very reliable connecting surfaces from top to bottom for the mounting center hole, so that the connection reliability of the axial flow blades and the mounting center hole is improved.
Preferably, the middle parts of the two diversion curved surfaces are bent towards the same side outside the axial flow blade. The axial flow blades have strong airflow cutting capability and small wind resistance.
Preferably, the installation center hole adopts a round blind hole, the axial flow blades are provided with four flow distribution grooves which are positioned on the bottom surface of the installation center hole, and the flow distribution grooves are provided with four corresponding axial flow blades. The axial flow blades are stably connected, the installation center hole and the distribution groove are used as axial flow channels, the axial direction wind guiding is stable, and the axial air flow can be changed to the rear of the axial flow impeller.
Preferably, the upper edge and the lower edge of the axial flow blade are perpendicular to the axis of the mounting seat. The connection surface and the connection strength of the axial flow blade and the axial seat are ensured.
Preferably, the generatrix of the radial flow guiding surface is arc-shaped, the tangent line at the upper end of the generatrix of the radial flow guiding surface is parallel to the axis of the mounting seat, and the tangent line at the lower end of the generatrix of the radial flow guiding surface is perpendicular to the axis of the axial flow seat. Besides the circular arc shape, an elliptic arc or hyperbolic arc shape can be adopted to ensure the centrifugal effect of the radial flow guiding surface of the impeller disc, ensure the stability of radial airflow, and the circular arc shape has the advantage of convenient processing.
Preferably, the axis of the distributing groove is spirally arranged, and the spiral direction of the axis of the distributing groove is the same as the bending direction of the lower end of the axial flow blade. The spiral flow distribution guide is provided, so that axial air flow is convenient to enter the motor shaft along the flow distribution groove.
Preferably, the mounting seat and the impeller disc are internally and thoroughly provided with a mounting through hole, the tail end of the mounting through hole is provided with a mounting groove which is matched with a motor shaft of a motor matched with the bidirectional shunt impeller, the mounting through hole is internally provided with a connecting screw rod, the tail end of the connecting screw rod is fixed with the motor shaft, and the outer end of the connecting screw rod is tightly propped against the guide cap; the lower end of the distributing groove is communicated into the mounting groove, and the tangent line of the lower end of the distributing groove is vertical to the axis of the mounting groove. The runner hole and the inlet hole are formed in the motor shaft, the inlet hole extends out of the side wall of the motor shaft, the air guide is combined through the inlet hole and the distribution groove, the distribution groove is elliptical, the assembly accuracy of the inlet hole can be reduced, the axial air flow can stably flow into the runner hole, and smoothness of the axial runner is facilitated.
The utility model has the following beneficial effects: radial air flow and axial air flow can be provided in a split manner, air gathering at the axis of the centrifugal impeller can be prevented, stable axial air flow can be provided, and heat dissipation of the axial air flow in the motor is possible; the axial airflow and the radial airflow are very stable, and the structural reliability is high; the axial airflow is stable and reliable, the wind resistance is small, and the matching of the axial flow impeller and the runner hole is reliable.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the present utility model.
Fig. 2 is an internal cross-sectional view of the embodiment shown in fig. 1.
Fig. 3 is a top view of the axial flow impeller of the embodiment shown in fig. 1.
Fig. 4 is a schematic structural view of the axial flow impeller of the embodiment shown in fig. 1.
Fig. 5 is a schematic structural view of a second embodiment of the present utility model.
In the figure: the impeller disc 1 is provided with a central hole 4 for radial flow diversion blades 3 of the flow guiding surface 2, an axial flow impeller 5 mounting seat 6, a flow guiding curved surface 8 of the axial flow impeller 7, a flow distributing groove 10 on the connecting end surface 9, a through hole 11 for connecting a screw 12, a flow guiding cap 13, a flow channel hole 15 of a motor shaft 14, a flow channel hole 16 and an annular groove 17.
Detailed Description
The utility model is further illustrated in the following, in conjunction with the accompanying drawings and specific embodiments.
In the case of example 1,
as shown in fig. 1 to 4, the bidirectional flow-dividing impeller capable of guiding flow in both axial direction and radial direction comprises an impeller disc 1, wherein a radial flow-guiding surface 2 is arranged on the impeller disc 1, the radial flow-guiding surface is a revolution surface, and a generatrix of the radial flow-guiding surface 2 adopts a quarter arc shape. The tangential line of the upper end of the generatrix of the radial flow guiding surface 2 is parallel to the axis of the mounting seat 6. The tangent line of the lower end of the radial flow guiding surface bus is perpendicular to the axis of the axial flow seat. The radial flow guiding surface 2 is provided with radial flow dividing blades 3, the axis of the impeller plate 1 is provided with a mounting central hole 4, the mounting central hole 4 adopts a circular through hole, the tail end of the mounting central hole 4 is provided with a flow distributing part corresponding to the axial flow blades 7, and in the embodiment, the flow distributing part is the end hole wall of the mounting central hole. The installation center hole 4 is internally provided with an axial flow impeller 5, the axial flow impeller 5 comprises an installation seat 6 and axial flow blades 7 which are arranged around the axial direction cylindrical array of the installation seat 6, the axial flow blades 7 are provided with four, and the outer ends of the axial flow blades are fixedly arranged on the wall of the installation center hole 4. The axial flow blade 7 comprises a connecting end face 9 and two opposite diversion curved surfaces 8, wherein the connecting end face 9 is attached to the hole wall of the installation center hole, the upper end and the lower end of the two diversion curved surfaces 8 are intersected in an acute angle, and the axial section of the axial flow blade 7 is crescent. The outer edges of the two guide curved surfaces 8 are intersected with the edge of the connecting end surface 9. The connecting end surfaces 9 of the four axial flow blades 7 are overlapped with the hole wall of the installation center hole 4. The bending directions of the two diversion curved surfaces 8 are the same. The shape of the mounting seat 6 is cylindrical, the mounting seat 6 and the mounting center hole 4 are coaxially arranged, and the upper end edge and the lower end edge of the axial flow blade 7 are arranged in parallel. The upper end edge and the lower end edge of the axial flow blade 7 are perpendicular to the axis of the mounting seat 6.
In the case of example 2,
as shown in fig. 5, embodiment 2 differs from embodiment 1 in that: the installation center hole 4 adopts a round blind hole, the hole bottom of the installation center hole 4 is in a semicircular spherical shape, and the hole bottom of the spherical shape and the installation seat are in smooth transition. The tail end of the installation center hole 4 is provided with a flow distribution part corresponding to the axial flow blades 7. The flow distribution part is a flow distribution groove 10 positioned at the bottom surface of the installation center hole, and the flow distribution groove is provided with four corresponding axial flow blades 7. The axis of the distributing groove is spirally arranged, and the spiral angle is not more than 30 degrees, so that the processing of the distributing groove is facilitated. The spiral direction of the axis of the distributing groove is the same as the bending direction of the lower end of the axial flow blade 7. The cross section of the distributing groove is elliptical, and the cross section of the distributing groove gradually decreases from top to bottom. The installation seat 6 and the impeller disc 1 are internally and thoroughly provided with an installation through hole, the tail end of the installation through hole 11 is provided with an installation groove, the installation groove is matched with a motor shaft of a motor matched with the bidirectional shunt impeller, the installation through hole is internally provided with a connecting screw rod 12, and the tail end of the connecting rod is locked and fixed with the motor shaft through threads. The outer end screw cap of the connecting screw rod is tightly propped with a diversion cap 13; the lower end of the distributing groove is communicated into the mounting groove, and the tangent line of the lower end of the distributing groove is vertical to the axis of the mounting groove. The motor shaft 14 is provided with a runner hole 15 and a feed hole 16, the runner hole is arranged along the axis of the motor shaft, the feed hole extends to the side wall of the motor shaft, the side wall of the motor shaft is provided with an annular groove 17 corresponding to the feed hole, the annular groove is used for reliably guiding the air flow led out by the distributing groove into the runner hole, the reliability of the axial flow is improved, and the heat dissipation inside the motor can be completed through the axial flow.
The radial flow guiding surface 2 on the impeller plate 1 is matched with the radial flow dividing blades 3 to form a radial centrifugal impeller to provide radial air flow, the mounting seat 6 and the axial flow blades 7 form the axial flow impeller 5 to finish the axial guiding of the air flow at the axis of the impeller plate 1, so that the axial flow guiding device can divide and provide radial air flow and axial air flow, prevent the axial center of the centrifugal impeller from gathering air, provide stable axial air flow and provide possibility for the heat dissipation of the axial air flow in the motor.

Claims (8)

1. The utility model provides a can both axial and radial two-way reposition of redundant personnel impeller of equal water conservancy diversion, a serial communication port, including impeller dish (1), be equipped with radial diversion face (2) on impeller dish (1), radial diversion face (2) are the revolution face, be equipped with radial diversion blade (3) on radial diversion face (2), the axis department of impeller dish (1) is equipped with installation centre bore (4), be equipped with axial impeller (5) in installation centre bore (4), axial impeller (5) include mount pad (6) and around axial blade (7) of mount pad (6) axial cylinder array setting, the outer end of axial blade (7) is fixed on the pore wall of installation centre bore (4), the tail end of installation centre bore (4) is equipped with the portion of joining in marriage that is equipped with of corresponding axial blade (7), installation centre bore (4) adopt circular blind hole, axial blade (7) are equipped with four, join in marriage the portion of joining in marriage and are for being located the joining in marriage chute (10) of installation centre bore (4) bottom surface, join in marriage chute (10) are equipped with four of corresponding axial blade (7).
2. The bidirectional flow dividing impeller capable of axially and radially guiding flow according to claim 1, wherein the axial flow blade (7) comprises a connecting end face (9) and two opposite flow guiding curved faces (8), the connecting end face is attached to the hole wall of the installation center hole (4), the upper end and the lower end of the two flow guiding curved faces (8) are intersected at an acute angle, and the edges of the outer ends of the two flow guiding curved faces (8) are respectively intersected with the edges of the connecting end face (9).
3. A bidirectional impeller according to claim 1 or 2, characterized in that the mounting base (6) is cylindrical in shape, the mounting base (6) is coaxial with the mounting central hole (4), and the upper and lower edges of the axial flow blades (7) are parallel to each other.
4. A bidirectional diverter impeller capable of diversion in both axial and radial directions according to claim 2 characterized in that the middle parts of the two diversion curves (8) are curved to the same side outside the axial flow blades (7).
5. A bidirectional impeller according to claim 2, characterized in that the upper and lower edges of the axial blades (7) are perpendicular to the axis of the mounting (6).
6. The bidirectional flow dividing impeller capable of guiding both axially and radially according to claim 1, wherein the generatrix of the radial flow guiding surface (2) is arc-shaped, the tangent line at the upper end of the generatrix of the radial flow guiding surface (2) is parallel to the axis of the axial flow seat, and the tangent line at the lower end of the generatrix of the radial flow guiding surface (2) is perpendicular to the axis of the axial flow seat.
7. The bidirectional flow distribution impeller capable of axially and radially guiding flow according to claim 1, wherein the axis of the flow distribution groove (10) is spirally arranged, and the spiral direction of the axis of the flow distribution groove (10) is the same as the bending direction of the lower end of the axial flow blade (7).
8. The bidirectional flow-dividing impeller capable of guiding flow axially and radially according to claim 1, wherein a mounting through hole (11) is formed in the mounting seat (6) and the impeller disc (1) in a penetrating manner, a mounting groove is formed in the tail end of the mounting through hole (11), the mounting groove is matched with a motor shaft (14) of a motor matched with the bidirectional flow-dividing impeller, a connecting screw rod (12) is arranged in the mounting through hole (11), the tail end of the connecting screw rod is fixed with the motor shaft (14), and a flow-guiding cap (13) is tightly propped against the outer end of the connecting screw rod (12); the lower end of the distributing groove (10) is communicated into the mounting groove, and the tangent line of the lower end of the distributing groove (10) is vertical to the axis of the mounting groove.
CN202210002223.6A 2021-12-06 2022-01-04 Bidirectional flow dividing impeller capable of axially and radially guiding flow Active CN114483604B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202123111294X 2021-12-06
CN202123111294 2021-12-06

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Publication Number Publication Date
CN114483604A CN114483604A (en) 2022-05-13
CN114483604B true CN114483604B (en) 2023-10-27

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2035712A1 (en) * 2006-06-30 2009-03-18 Qinetiq Limited Centrifugal impeller
CN102971540A (en) * 2010-07-14 2013-03-13 罗伯特·博世有限公司 Fan module
CN104514738A (en) * 2014-12-26 2015-04-15 广州科光机械有限公司 Centrifugal fan with axial-flow impeller
CN105179281A (en) * 2015-10-12 2015-12-23 珠海格力电器股份有限公司 Fan and air conditioning system comprising same
CN105298877A (en) * 2015-11-19 2016-02-03 株洲联诚集团有限责任公司 Centrifugal axial flow fan
CN105370618A (en) * 2015-11-16 2016-03-02 蔡少波 Tapered axial flow centrifugal compressor
CN109578326A (en) * 2018-11-30 2019-04-05 中国航发湖南动力机械研究所 Centrifugal impeller and centrifugal compressor
CN112268008A (en) * 2020-10-14 2021-01-26 广东顺威精密塑料股份有限公司 Combined fan

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2035712A1 (en) * 2006-06-30 2009-03-18 Qinetiq Limited Centrifugal impeller
CN102971540A (en) * 2010-07-14 2013-03-13 罗伯特·博世有限公司 Fan module
CN104514738A (en) * 2014-12-26 2015-04-15 广州科光机械有限公司 Centrifugal fan with axial-flow impeller
CN105179281A (en) * 2015-10-12 2015-12-23 珠海格力电器股份有限公司 Fan and air conditioning system comprising same
CN105370618A (en) * 2015-11-16 2016-03-02 蔡少波 Tapered axial flow centrifugal compressor
CN105298877A (en) * 2015-11-19 2016-02-03 株洲联诚集团有限责任公司 Centrifugal axial flow fan
CN109578326A (en) * 2018-11-30 2019-04-05 中国航发湖南动力机械研究所 Centrifugal impeller and centrifugal compressor
CN112268008A (en) * 2020-10-14 2021-01-26 广东顺威精密塑料股份有限公司 Combined fan

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