WO2018008489A1 - 流体式ファンクラッチ - Google Patents

流体式ファンクラッチ Download PDF

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Publication number
WO2018008489A1
WO2018008489A1 PCT/JP2017/023744 JP2017023744W WO2018008489A1 WO 2018008489 A1 WO2018008489 A1 WO 2018008489A1 JP 2017023744 W JP2017023744 W JP 2017023744W WO 2018008489 A1 WO2018008489 A1 WO 2018008489A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
housing
fan clutch
clutch
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/023744
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
智 久保田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Usui Co Ltd
Original Assignee
Usui Co Ltd
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 Usui Co Ltd filed Critical Usui Co Ltd
Priority to US16/315,159 priority Critical patent/US10711684B2/en
Priority to KR1020197003488A priority patent/KR102155972B1/ko
Priority to CN201780034794.5A priority patent/CN109312792B/zh
Priority to EP17824095.8A priority patent/EP3483465B9/en
Publication of WO2018008489A1 publication Critical patent/WO2018008489A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/042—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using fluid couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of 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
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
    • F16D35/021—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves
    • F16D35/024—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves the valve being actuated electrically, e.g. by an electromagnet

Definitions

  • the present invention generally relates to a fluid type fan clutch that controls the rotation of a fan for cooling an engine in an automobile or the like in accordance with a change in temperature or rotation around the outside, and more specifically, a cooling fan generated when the fan clutch is operated.
  • the present invention relates to a fluid fan clutch capable of preventing a decrease in air volume due to a reverse flow of wind.
  • the fluid friction clutch includes a drive disk and a housing, an annular supply chamber (annular supply chamber) and a working chamber (working chamber), and a supply device and a working chamber for supplying shear fluid (oil) from the supply chamber to the working chamber.
  • a reflux device for refluxing the shear fluid from the supply chamber to a supply chamber wherein the supply chamber includes a storage chamber for the shear fluid, the storage chamber being separated from the working chamber by another part of the supply chamber
  • the storage chamber is formed of an annular segment, the annular segment of the storage chamber is formed as a refill container, and the supply chamber has at least one supply port and at least one return port (collection port). And the supply port and the reflux port form a part of the supply device and the reflux device, respectively. And it has a.
  • a fan clutch capable of removably fixing a fan by a flange ring, the fan clutch including front and back housing parts, and a flange ring fixed to the housing by a connecting element.
  • the fixing protrusion (tab) arranged on the flange ring is fixed to the fixing protrusion formed on the housing by the connecting element
  • the fixing protrusion (tab) arranged on the flange ring is fixed to the fixing protrusion of the fan clutch. It is configured to be fitted from the front side or the back side.
  • the fan clutch includes front and back housing parts, and the fan clutch capable of detachably fixing the fan to the housing with a flange ring is a simplified fan assembly (installation) and disassembly.
  • This type of fan clutch has a structure in which a reverse flow of the cooling fan wind is generated from the gap formed between the housing part and the flange ring when the clutch is operated.
  • the fan clutch In order to prevent a decrease in the air flow due to the reverse flow of the cooling fan air, it is necessary to generate an air flow that takes into account the reverse flow, and not only is the fan consumption horsepower increased, but the fan clutch There has been a problem that fuel consumption deteriorates due to a decrease in durability and output loss.
  • the flange ring is provided with a means such as a rubber cover for preventing the backflow, the number of parts and the assembly process increase, which is not preferable.
  • the present invention has been made in order to solve the above-described problems of the conventional fan clutch, and is extremely effective in reducing the air flow due to the backflow of the cooling fan air generated when the fan clutch is operated without taking measures such as increasing the number of parts. It is an object of the present invention to provide a fluid fan clutch with excellent cooling performance that can be effectively prevented by simple means.
  • the fluid fan clutch according to the present invention has a structure in which a backflow prevention cover portion is provided integrally with the housing portion in the housing portion, and the gist thereof is that the fan is bolted to the housing via the flange ring.
  • the fluid fan clutch has a structure that is detachably fixed, and the housing is composed of a front side housing part (cover) and a back side housing part (case), and is arranged at equal intervals in the radial direction of the outer periphery of the front side housing
  • the back side housing part is integrated with the housing part for preventing the fan air flow backflow.
  • a protrusion for preventing backflow, the protrusion for backflow prevention with respect to the front housing component fixing protrusion And it is characterized in that it is arranged offset in the direction.
  • the fluid type fan clutch according to the present invention prevents the backflow of the fan air flow which is shifted in the circumferential direction with respect to the front housing part (cover) fixing protrusion on the rear housing part (case) with respect to the front housing part (cover) for fixing the fan.
  • the projecting portion By disposing the projecting portion, the backflow of the cooling fan air generated when the fan clutch is operated can be prevented, so that the cooling fan air volume can be prevented from being lowered and the fan performance can be improved.
  • the cost is not increased due to an increase in the number of parts and the assembly process.
  • the fluid type fan clutch can be provided at low cost.
  • FIG. 1 It is an axial direction longitudinal cross-sectional view which shows 1st Example of the fluid type fan clutch which concerns on this invention. It is the figure seen from the axial direction which shows the housing part of the fluid type fan clutch (no fan) shown in FIG. It is a perspective view which expands and shows a part of side surface of the housing part shown in FIG. It is the figure which looked at the front side housing part of the fluid type fan clutch (with a fan) shown in FIG. 1 from the axial direction. It is the figure which looked at the flange ring of the fan in a fluid type fan clutch same as the above from the axial direction. It is the figure which looked at the back side housing part of the fluid type fan clutch (with a fan) shown in FIG. 1 from the axial direction.
  • the clutch body 1 includes a clutch body 1 and a fan 2 fixed to the clutch body 1 as an axial fan.
  • the clutch body 1 is connected to a rotating shaft body (driving shaft) 3 that is rotated by driving of a driving portion (engine) via a bearing 4-1 and 4-2 and a front housing component (cover) 5-1 and a rear housing component ( A housing (sealing container) 5 comprising a case) 5-2 is supported, and a drive disk 7 fixed to the rotary shaft 3 is housed in a torque transmission chamber 6 in the housing 5.
  • the drive disk 7 is provided with a window hole 7-2 leading to the torque transmission chamber 6 at one end portion of an annular oil reservoir chamber (oil storage chamber) 7-1 provided with a hollow inside, and a rotating shaft body.
  • the drive disk 7 is provided with an oil supply chamber 7-4 formed by a partition wall 7-3 made of an arc-shaped wall concentric with the oil reservoir chamber in the annular oil reservoir chamber 7-1.
  • An oil circulation passage hole (oil supply port) 9 communicating with the torque transmission gap is provided on the side wall surface of the oil supply chamber on the end side of the window hole 7-2.
  • a valve member 10 that opens and closes an oil circulation passage hole 9 provided in the drive disk 7 includes a plate spring 10-1 and an armature 10-2, and the plate so that the armature 10-2 is positioned in the vicinity of the rotary shaft body 3.
  • the base end of the spring 10-1 is fixed to the back side of the disk with a screw or the like.
  • the fan 2 is screwed to a fan mounting screw hole 5-5 provided at an end portion of the housing (sealer box) 5 through a flange ring 11 (FIG. 5) described later.
  • a ring-shaped electromagnet 13 is supported by a ring-shaped electromagnet support 14 supported on the rotary shaft 3 via a bearing 12 on the drive unit side of the sealer cage 5, and between the electromagnet 13 and the valve member 10.
  • a first magnetic ring 17 is disposed on the outer periphery of a cylindrical non-magnetic ring 15 fixed to the outer periphery of the rotary shaft body 3, and the first magnetic ring 17 is disposed between the electromagnet support 14 of the electromagnet 13 and the rotary shaft body 3.
  • the two magnetic rings 18 are externally fitted and fixed to the rotary shaft body 3 so as to substantially contact the electromagnet support 14.
  • the second magnetic ring 18 is provided to efficiently transmit the magnetic flux of the electromagnet 13 to the armature 10-2 of the valve member.
  • the fluid type fan clutch according to the first embodiment of the present invention has a mechanism in which the fan 2 attached to the housing 5 via the flange ring 11 rotates, and the connection structure between the fan 2 and the fan clutch is as follows.
  • the outer peripheral portion diameter of the housing is provided on the front housing component (cover) 5-1 of the housing 5.
  • Fan fixing protrusions (convex parts) 5-3 arranged at equal intervals in the direction, and formed on the back housing part (case) 5-2 between the fan fixing protrusions 5-3 and the fixing protrusions
  • the recessed portion 5-3a has a fan air flow backflow preventing protruding portion 5-4 that is shifted in the circumferential direction.
  • the rear housing part 5-2 with the protruding portion has a front housing portion.
  • 5-1 Phase Cascade flange ring 11, in which the front housing part 5-1 and back housing part 5-2 without a structure to bolt. As shown in FIG. 5, the flange ring 11 has an inner diameter that is slightly larger than the outer diameter of the clutch body 1, and a fixed projection 11-1 projects radially inward from the inner diameter surface thereof.
  • reference numeral 11-2 denotes a bolt fastening hole with the front housing part (cover) 5-1.
  • FIG. 4 is a view of the front side housing portion of the fluid type fan clutch provided with the fan 2 shown in FIG.
  • the flow of the air from the recess 5-3a is suppressed by the fan airflow backflow prevention protrusions 5-4 arranged at intervals on the outer periphery of the rear housing part 5-2. Prevents fan fan air volume from being reduced.
  • FIG. 6 is a view of the rear housing portion of the fluid type fan clutch provided with the fan 2 attached via the flange ring 11 as viewed from the axial direction, and the rear housing is similar to that shown in FIG.
  • the fan clutch When the fan clutch is operated, the air flow from the recess 5-3a is suppressed by the fan air flow backflow prevention protrusions 5-4 arranged on the outer periphery of the component 5-2, thereby reducing the fan air flow of the fan clutch. Can be prevented and fan performance can be improved.
  • the fan airflow backflow prevention system of the present invention is not a backflow prevention system using separate parts, an effect of suppressing an increase in the number of parts and an increase in man-hours during assembly can be obtained.
  • the fluid fan clutch according to the second embodiment is also the fluid fan clutch according to the first embodiment.
  • the fan 22 attached to the housing 25 via the flange ring 21 is rotated, and the fan 22 and fan clutch are connected by the flange ring 21.
  • the fan clutch structured to be detachably fixed rectangular fan fixing protrusions (convex portions) arranged at equal intervals in the outer peripheral portion radial direction of the housing 25-1 on the front housing component (cover) 25-1 of the housing 25. ) 25-3, and the rear housing part (case) 25-2 is connected to the fixing protrusion with respect to the fan fixing protrusion 25-3.
  • a rectangular fan air flow backflow preventing protrusion 25-4 disposed in a circumferentially recessed manner in a rectangular recess 25-3a formed between the front housing and the rear housing part 25-2 with the protrusion;
  • the parts 25-1 are overlapped and bolted together, and the flange ring 21 is bolted to the front housing part 25-1.
  • FIG. 8 shows a view of the front housing portion of the fluid fan clutch provided with the fan 22 attached via the flange ring 21 as in FIG. 4 as seen from the axial direction.
  • the air flow from the recess 25-3a is suppressed by the fan air flow backflow prevention protrusions 25-4 arranged at intervals on the outer periphery of the fan, so that the fan air flow reduction of the fluid fan clutch can be prevented. It is.
  • FIG. 9 shows a rear side housing portion of a fluid type fan clutch provided with a fan 22 attached via a flange ring 21 as seen from the axial direction, as shown in FIG.
  • the air flow from the recess 25-3a is suppressed when the fan clutch is operated by the fan air flow backflow prevention protrusions 25-4 arranged on the outer periphery of the back housing part 25-2.
  • the fan airflow backflow prevention method is not a backflow prevention method using separate parts, so that an effect of suppressing an increase in the number of parts and an increase in man-hours during assembly can be obtained. .
  • fan fixing protrusions (convex parts) 5-3 and 25-3 formed on the front housing parts (covers) 5-1 and 25-1 of the housings 5 and 25, Fans formed in the recesses 5-3a and 25-3a formed between the fan fixing protrusions 5-3 and 25-3 and the fixing protrusions, and the rear housing parts (cases) 5-2 and 25-2.
  • the shape seen from the axial direction of the airflow backflow prevention protrusions 5-4 and 25-4 is not limited to the shape shown here. For example, a trapezoidal shape or a semicircular arc shape can provide the same effect. Needless to say.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mechanical Operated Clutches (AREA)
PCT/JP2017/023744 2016-07-07 2017-06-28 流体式ファンクラッチ Ceased WO2018008489A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/315,159 US10711684B2 (en) 2016-07-07 2017-06-28 Fluid fan clutch
KR1020197003488A KR102155972B1 (ko) 2016-07-07 2017-06-28 유체식 팬 클러치
CN201780034794.5A CN109312792B (zh) 2016-07-07 2017-06-28 流体式风扇离合器
EP17824095.8A EP3483465B9 (en) 2016-07-07 2017-06-28 Fluid-type fan clutch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-135327 2016-07-07
JP2016135327A JP6697803B2 (ja) 2016-07-07 2016-07-07 流体式ファンクラッチ

Publications (1)

Publication Number Publication Date
WO2018008489A1 true WO2018008489A1 (ja) 2018-01-11

Family

ID=60912574

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/023744 Ceased WO2018008489A1 (ja) 2016-07-07 2017-06-28 流体式ファンクラッチ

Country Status (6)

Country Link
US (1) US10711684B2 (enExample)
EP (1) EP3483465B9 (enExample)
JP (1) JP6697803B2 (enExample)
KR (1) KR102155972B1 (enExample)
CN (1) CN109312792B (enExample)
WO (1) WO2018008489A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021021072A1 (en) * 2019-07-26 2021-02-04 Hewlett-Packard Development Company, L.P. Service doors with leaf spring fasteners
CN111608932B (zh) * 2020-05-19 2022-06-24 上海德惠特种风机有限公司 一种防护性好且便于安装的防爆型轴流特种风机
TW202305248A (zh) * 2021-07-15 2023-02-01 財團法人工業技術研究院 複合式氣流產生裝置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455964B1 (enExample) * 1965-02-17 1970-02-28
JPS60175818U (ja) * 1984-04-28 1985-11-21 日産自動車株式会社 自動車冷却フアンのブレ−キ装置
JPH0169921U (enExample) * 1987-10-28 1989-05-10

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Publication number Priority date Publication date Assignee Title
GB841703A (en) * 1956-05-02 1960-07-20 Schwitzer Corp Fluid coupling mechanism
US4169693A (en) * 1977-05-25 1979-10-02 Eaton Corporation Fluid coupling device and fan mounting arrangement
DE3444928C2 (de) * 1984-12-08 1995-02-16 Fichtel & Sachs Ag Visko-Lüfterkupplung
US4995494A (en) * 1989-05-22 1991-02-26 General Motors Corporation Pressure-responsive fluid check valve and method for viscous fluid clutch
DE19702973C2 (de) * 1996-02-10 2002-03-07 Behr Gmbh & Co Flüssigkeitsreibungskupplung
US5782715A (en) * 1996-08-29 1998-07-21 Eaton Corporation Dual ratio viscous fan drive
US5839558A (en) * 1997-06-25 1998-11-24 General Motors Corporation Viscous fan clutch with engage port lock
DE19742823B4 (de) * 1997-09-27 2004-05-19 Behr Gmbh & Co. Flüssigkeitsreibungskupplung
JP2002081466A (ja) 2000-06-29 2002-03-22 Usui Internatl Ind Co Ltd 外部制御式ファン・カップリング装置
JP2004162911A (ja) 2002-10-22 2004-06-10 Usui Kokusai Sangyo Kaisha Ltd 外部制御式ファン・カップリング装置
US7244110B2 (en) * 2003-09-30 2007-07-17 Valeo Electrical Systems, Inc. Fan hub assembly for effective motor cooling
US7600623B1 (en) * 2006-02-06 2009-10-13 Standard Motor Products Inclusion of an anti-drain valve in viscous fan clutches
ATE537341T1 (de) * 2006-08-10 2011-12-15 Behr Gmbh & Co Kg Lüfterantriebsvorrichtung und lüfter mit derselben
DE102008063702A1 (de) * 2008-12-19 2010-06-24 Behr Gmbh & Co. Kg Lüfterantrieb, insbesondere für ein Kraftfahrzeug
CN104632929B (zh) * 2014-12-19 2017-01-25 雪龙集团股份有限公司 一种分离转速可控的硅油风扇离合器
CN204458906U (zh) * 2014-12-22 2015-07-08 北汽福田汽车股份有限公司 一种硅油离合器及冷却风扇
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS455964B1 (enExample) * 1965-02-17 1970-02-28
JPS60175818U (ja) * 1984-04-28 1985-11-21 日産自動車株式会社 自動車冷却フアンのブレ−キ装置
JPH0169921U (enExample) * 1987-10-28 1989-05-10

Also Published As

Publication number Publication date
JP2018004040A (ja) 2018-01-11
KR20190027859A (ko) 2019-03-15
EP3483465A1 (en) 2019-05-15
US20190218957A1 (en) 2019-07-18
EP3483465B1 (en) 2020-09-09
CN109312792A (zh) 2019-02-05
CN109312792B (zh) 2020-08-18
KR102155972B1 (ko) 2020-09-14
EP3483465B9 (en) 2021-03-24
EP3483465A4 (en) 2020-02-26
JP6697803B2 (ja) 2020-05-27
US10711684B2 (en) 2020-07-14

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