KR20220119829A - Impeller for water pump - Google Patents

Impeller for water pump Download PDF

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Publication number
KR20220119829A
KR20220119829A KR1020210023152A KR20210023152A KR20220119829A KR 20220119829 A KR20220119829 A KR 20220119829A KR 1020210023152 A KR1020210023152 A KR 1020210023152A KR 20210023152 A KR20210023152 A KR 20210023152A KR 20220119829 A KR20220119829 A KR 20220119829A
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KR
South Korea
Prior art keywords
impeller
seal
axial direction
blades
water pump
Prior art date
Application number
KR1020210023152A
Other languages
Korean (ko)
Inventor
김민우
박남용
김대환
박진우
Original Assignee
지엠비코리아 주식회사
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Application filed by 지엠비코리아 주식회사 filed Critical 지엠비코리아 주식회사
Priority to KR1020210023152A priority Critical patent/KR20220119829A/en
Publication of KR20220119829A publication Critical patent/KR20220119829A/en

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    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to an impeller for a water pump, and more specifically, to an impeller for a water pump which can reduce pressure applied to a seal by passing cooling water in an axial direction of the impeller. The impeller for a water pump according to the present invention comprises: a mounting unit which has a through-hole formed to be coupled to a rotating shaft; a plurality of blades which are arranged in a circumferential direction, and protrude radially from the outer peripheral surface of the mounting part to pressurize a fluid flowing in the axial direction and discharge the fluid radially; and a disc which connects the end of the blade from an upper portion of the blade, and has an inflow hole formed so that the fluid guided from the impeller cover can be supplied to the blades in the axial direction. The fluid entering from the inflow hole can pass through the blades in the axial direction. According to the present invention, low-pressure cooling water introduced from the impeller cover through the inflow hole of the disc in the axial direction passes through the blades, and is supplied to the seal located below the impeller. Therefore, the present invention can reduce the pressure applied to the seal since low-pressure cooling water is supplied to the seal, thereby preventing leakage through the seal.

Description

워터펌프용 임펠러{Impeller for water pump}Impeller for water pump

본 발명은 워터펌프용 임펠러에 대한 것으로서, 더욱 상세하게는 냉각수를 임펠러의 축방향으로 통과시켜 씰에 가해지는 압력을 줄일 수 있는 워터펌프용 임펠러에 대한 것이다. The present invention relates to an impeller for a water pump, and more particularly, to an impeller for a water pump capable of reducing the pressure applied to a seal by passing cooling water in the axial direction of the impeller.

차량용 워터펌프 임펠러는 냉각수를 순환시키는 역할을 한다. The vehicle water pump impeller serves to circulate the coolant.

도 7에 도시된 종래의 임펠러(100)의 경우, 원판(110)의 상면부에 베인(120)이 방사상으로 형성된다. 이 경우, 임펠러(100)가 고속회전하면 냉각수가 베인(120)을 따라 배출되면서 임펠러(100) 외주면에 고압이 발생된다. 원판(110)의 하부와 씰(200) 사이의 공간이 냉각수가 배출되는 공간과 연통되어 있으므로 임펠러(100) 외주면에 발생된 고압은 화살표 A와 같이 임펠러(100) 하부에 장착된 씰(200)에 가해지게 된다. 그래서 씰(200)을 통하여 누수가 발생한다는 문제점이 있었다. In the case of the conventional impeller 100 shown in FIG. 7 , the vanes 120 are radially formed on the upper surface of the disk 110 . In this case, when the impeller 100 rotates at a high speed, a high pressure is generated on the outer peripheral surface of the impeller 100 while cooling water is discharged along the vane 120 . Since the space between the lower part of the disc 110 and the seal 200 is in communication with the space where the coolant is discharged, the high pressure generated on the outer peripheral surface of the impeller 100 is the seal 200 mounted on the lower part of the impeller 100 as shown by the arrow A. will be applied to Therefore, there was a problem that water leakage occurs through the seal 200 .

등록특허 제10-0613469호 (등록일 2006.08.09)Registered Patent No. 10-0613469 (Registration Date 2006.08.09) 등록특허 제10-0633868호 (등록일 2006.10.04)Registered Patent No. 10-0633868 (Registration Date 2006.10.04)

본 발명은 상기의 문제점을 해결하기 위한 것이다. 본 발명은 유체를 임펠러의 축방향으로 통과시켜 씰에 가해지는 압력을 줄일 수 있는 워터펌프용 임펠러를 제공하는 것을 목적으로 한다. The present invention is to solve the above problems. An object of the present invention is to provide an impeller for a water pump capable of reducing pressure applied to a seal by passing a fluid in the axial direction of the impeller.

본 발명에 따른 워터펌프용 임펠러는 회전축에 결합되기 위한 관통홀이 형성된 장착부와, 축방향으로 유입되는 유체를 반경방향으로 가압하여 배출시키도록 상기 장착부의 외주면에서 일단이 반경방향으로 돌출되게 원주방향을 따라 복수개 배치된 날개와, 임펠러 커버에서 안내되는 유체가 축방향을 따라 상기 날개로 공급될 수 있게 유입홀이 형성되어 상기 날개의 상부에서 상기 날개의 일단을 결합시키는 원판을 포함하며, 상기 유입홀에서 유입되는 유체를 축방향으로 상기 날개를 통과시킬 수 있다. The impeller for a water pump according to the present invention includes a mounting part having a through hole for coupling to a rotating shaft, and one end of the mounting part radially protruding from the outer circumferential surface of the mounting part to pressurize and discharge the fluid flowing in the axial direction in the radial direction. A plurality of blades disposed along the wing, and an inlet hole is formed so that the fluid guided from the impeller cover can be supplied to the blades along the axial direction, and a disk coupling one end of the blades at the top of the blades, the inflow A fluid flowing in from the hole may pass through the wing in an axial direction.

본 발명에 의하면, 원판의 유입홀을 통하여 임펠라 커버에서 축방향으로 유입되는 저압의 냉각수가 날개를 통과하여 임펠러 하부에 위치한 씰로 공급된다. 그래서 저압의 냉각수가 씰에 공급되므로 씰에 가해지는 압력을 줄여 씰을 통하여 누수되는 것을 방지할 수 있다. According to the present invention, the low-pressure coolant flowing in the axial direction from the impeller cover through the inlet hole of the disk passes through the blades and is supplied to the seal located at the lower part of the impeller. Therefore, since low-pressure coolant is supplied to the seal, the pressure applied to the seal can be reduced to prevent leakage through the seal.

도 1은 본 발명에 따른 워터펌프용 임펠러의 일 실시예의 사시도이고,
도 2는 도 1의 실시예를 다른 방향에서 바라본 사시도이고,
도 3은 도 1의 평면도이고,
도 4는 도 3의 A-A' 방향에서 바라본 단면도이고,
도 5는 도 1의 배면도이고,
도 6은 도 1의 실시예가 적용된 워터펌프의 단면도이고,
도 7은 종래의 임펠러가 적용된 워터펌프의 단면도이다. 1 is a perspective view of an embodiment of an impeller for a water pump according to the present invention;
2 is a perspective view of the embodiment of FIG. 1 viewed from another direction;
Figure 3 is a plan view of Figure 1,
4 is a cross-sectional view viewed from the direction AA' of FIG. 3,
Figure 5 is a rear view of Figure 1,
6 is a cross-sectional view of the water pump to which the embodiment of FIG. 1 is applied;
7 is a cross-sectional view of a water pump to which a conventional impeller is applied.

도 1 내지 도 6을 참조하여 본 발명에 따른 워터펌프용 임펠러의 일 실시예를 설명한다. An embodiment of an impeller for a water pump according to the present invention will be described with reference to FIGS. 1 to 6 .

본 발명의 일 실시예에 따른 워터펌프용 임펠러(10)는 장착부(11)와, 날개(13)와, 원판(15)을 포함한다. The impeller 10 for a water pump according to an embodiment of the present invention includes a mounting portion 11 , a wing 13 , and a disk 15 .

장착부(11)는 회전축(20)에 결합되기 위한 관통홀(12)이 형성된다. The mounting part 11 is formed with a through hole 12 for being coupled to the rotation shaft 20 .

날개(13)는 축방향으로 유입되는 냉각수를 반경방향으로 가압하여 배출시키는 역할을 한다. 이를 위하여 날개(13)는 장착부(11)의 외주면에서 일단(13a)이 반경방향으로 돌출되어 원주방향을 따라 복수개 배치된다. The wing 13 serves to radially pressurize and discharge the coolant flowing in the axial direction. To this end, the wings 13 are arranged in plurality along the circumferential direction with one end 13a protruding from the outer circumferential surface of the mounting part 11 in the radial direction.

원판(15)은 유입홀(16)이 형성되어 날개(13)의 상부에서 날개(13)의 일단(13a)을 결합시킨다. 그래서 유입홀(16)이 형성되어 있으므로 임펠러 커버(미도시)에서 안내되는 냉각수는 축방향을 따라 유입홀(16)을 통하여 날개(13)를 통과한다. The disk 15 is formed with an inlet hole 16 to couple one end 13a of the wing 13 at the upper portion of the wing 13 . Therefore, since the inlet hole 16 is formed, the coolant guided by the impeller cover (not shown) passes through the blade 13 through the inlet hole 16 along the axial direction.

종래의 임펠러(100)의 경우, 도 7에 도시된 바와 같이, 원판(110)의 상면부에 베인(120)이 방사상으로 형성된다. 이 경우, 임펠러(100)가 고속회전하면 냉각수가 베인(120)을 따라 배출되면서 임펠러(100) 외주면에 고압이 발생된다. 원판(110)의 하부와 씰(200) 사이의 공간이 냉각수가 배출되는 공간과 연통되어 있으므로 임펠러(100) 외주면에 발생된 고압은 화살표 A와 같이 임펠러(100) 하부에 장착된 씰(200)에 가해지게 된다. 그래서 씰(200)을 통하여 누수가 발생한다는 문제점이 있었다. In the case of the conventional impeller 100 , as shown in FIG. 7 , the vanes 120 are radially formed on the upper surface of the disk 110 . In this case, when the impeller 100 rotates at a high speed, a high pressure is generated on the outer peripheral surface of the impeller 100 while cooling water is discharged along the vane 120 . Since the space between the lower part of the disc 110 and the seal 200 is in communication with the space where the coolant is discharged, the high pressure generated on the outer peripheral surface of the impeller 100 is the seal 200 mounted on the lower part of the impeller 100 as shown by the arrow A. will be applied to Therefore, there was a problem that water leakage occurs through the seal 200 .

반면, 본 발명의 경우, 원판(15)의 유입홀(16)을 통하여 임펠러 커버에서 축방향으로 유입되는 저압의 냉각수가 화살표 B와 같이 날개(13)를 통과하여 임펠러(10) 하부에 위치한 씰(30)로 공급된다. 그래서 저압의 냉각수가 씰(30)에 공급되므로 씰(30)에 가해지는 압력을 줄여 씰(30)을 통하여 누수되는 것을 방지할 수 있다. On the other hand, in the case of the present invention, the low-pressure coolant flowing in the axial direction from the impeller cover through the inlet hole 16 of the disk 15 passes through the wing 13 as shown by the arrow B, and the seal located under the impeller 10 (30) is supplied. Therefore, since the low-pressure coolant is supplied to the seal 30 , the pressure applied to the seal 30 is reduced to prevent leakage through the seal 30 .

10 : 임펠러 11 ; 장착부
12 : 관통홀 13 : 날개
13a : 일단 15 : 원판
16 : 유입홀 20 : 회전축
30 : 씰 100 : 임펠러
110 : 원판 120 : 베인
200 : 씰10: impeller 11; mount
12: through hole 13: wing
13a: once 15: original plate
16: inlet hole 20: rotation shaft
30: seal 100: impeller
110: disc 120: vane
200: seal

Claims (1)

회전축에 결합되기 위한 관통홀이 형성된 장착부와,
축방향으로 유입되는 유체를 반경방향으로 가압하여 배출시키도록 상기 장착부의 외주면에서 일단이 반경방향으로 돌출되게 원주방향을 따라 복수개 배치된 날개와,
임펠러 커버에서 안내되는 유체가 축방향을 따라 상기 날개로 공급될 수 있게 유입홀이 형성되어 상기 날개의 상부에서 상기 날개의 일단을 결합시키는 원판을 포함하며,
상기 유입홀에서 유입되는 유체를 축방향으로 상기 날개를 통과시킬 수 있는 것을 특징으로 하는 워터펌프용 임펠러. A mounting portion having a through-hole for coupling to the rotating shaft, and
A plurality of blades disposed along the circumferential direction so that one end protrudes in the radial direction from the outer circumferential surface of the mounting portion to pressurize and discharge the fluid flowing in the axial direction in the radial direction;
An inlet hole is formed so that the fluid guided by the impeller cover can be supplied to the blades along the axial direction, and a disk for coupling one end of the blades at the top of the blades,
An impeller for a water pump, characterized in that the fluid flowing in from the inlet hole can pass through the blade in the axial direction.
KR1020210023152A 2021-02-22 2021-02-22 Impeller for water pump KR20220119829A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102606012B1 (en) 2022-09-30 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it
KR102606016B1 (en) 2022-09-30 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it
KR102606019B1 (en) 2022-10-18 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100613469B1 (en) 2004-09-14 2006-08-21 명화공업주식회사 Method for manufacturing water pump impeller assembly for automobile
KR100633868B1 (en) 2004-10-28 2006-10-16 명화공업주식회사 Water pump impeller for automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100613469B1 (en) 2004-09-14 2006-08-21 명화공업주식회사 Method for manufacturing water pump impeller assembly for automobile
KR100633868B1 (en) 2004-10-28 2006-10-16 명화공업주식회사 Water pump impeller for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102606012B1 (en) 2022-09-30 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it
KR102606016B1 (en) 2022-09-30 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it
KR102606019B1 (en) 2022-10-18 2023-11-24 지엠비코리아 주식회사 Impeller for electric water pump of vehicle and electric water pump having it

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