EP0073476A2 - Enveloppe de ventilateur - Google Patents

Enveloppe de ventilateur Download PDF

Info

Publication number
EP0073476A2
EP0073476A2 EP82107826A EP82107826A EP0073476A2 EP 0073476 A2 EP0073476 A2 EP 0073476A2 EP 82107826 A EP82107826 A EP 82107826A EP 82107826 A EP82107826 A EP 82107826A EP 0073476 A2 EP0073476 A2 EP 0073476A2
Authority
EP
European Patent Office
Prior art keywords
fan shroud
air guide
radiator
cylindrical flange
set forth
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.)
Granted
Application number
EP82107826A
Other languages
German (de)
English (en)
Other versions
EP0073476B1 (fr
EP0073476A3 (en
Inventor
Nakanobu Seki
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of EP0073476A2 publication Critical patent/EP0073476A2/fr
Publication of EP0073476A3 publication Critical patent/EP0073476A3/en
Application granted granted Critical
Publication of EP0073476B1 publication Critical patent/EP0073476B1/fr
Expired 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans

Definitions

  • the present invention relates to the cooling of automotive engines and particularly to a fan shroud arranged in the rear of a radiator to increase the cooling system efficiency.
  • Figs. 1 and 2 show a typical example of a fan shroud 10 arranged in the rear of a radiator 12 of a water-cooled automotive engine 14.
  • a cooling fan 16 is shrouded by the fan shroud 10 to increase the cooling system efficiency.
  • the fan shroud 10 is rectangular in external shape in accordance with the shape of a radiator core (not shown) and has a ventilation opening 18 in which the cooling fan 16 is disposed to draw air through the radiator 12.
  • the fan shroud 10 is formed with a short cylindrical flange 20 which is uniform in diameter.
  • Another disadvantage is that the amount of air to be supplied to the constituent parts of the engine 14 such as an oil pan and an exhaust manifold for cooling same is reduced since part of the air that has passed through the radiator 12 is allowed to flow radially of the cooling fan 16 and thus deflected away from those parts.
  • a novel and improved fan shroud which is arranged in the rear of a radiator of an automotive engine.
  • the fan shroud comprises, as usual, a ventilation opening in which a cooling fan is disposed to draw air through the radiator.
  • the fan shroud is further provided with an air guide means for deflecting air that is going to escape radially of the radiator after having passed through the radiator, rearwardly of the radiator.
  • the fan shroud of this invention is quite effective for overcoming the disadvantages noted above. That is, with the fan shroud of this invention, air that is going to escape radially of the cooling fan after having passed through the radiator is efficiently deflected rearwardly of the radiator, making it possible to prevent the air that has been heated during its passage through the radiator from being circulated back to the front of the radiator as well as to increase the amount of air to be supplied to the constituent parts of the engine such as the oil pan and the exhaust manifold.
  • a fan shroud according to an embodiment of the present invention is indicated at 22 and shown to comprise a ventilation opening 24 and a short cylindrical flange 26 provided to the periphery of the ventilation opening 24 in a manner to project rearwardly therefrom.
  • the foregoing structure substantially follows the conventional fashion.
  • the fan shroud 22 further comprises an air guide means 28 provided to the rear end of the cylindrical flange 26 for defelcting air that is going to escape radially of the cooling fan 16, rearwardly of the radiator 12.
  • the air guide means 28 briefly comprises an air guide ring 30 placed around the cylindrical flange 26 at a predetermined space therebetween. More specifically, the air guide means 28 further comprises an integral annular disc 32 joined at the inner periphery thereof with the rear end of the cylindrical flange 26 and extending radially outwardly toward the outer periphery thereof.
  • the air guide ring 30 is truncated cone-shaped and has a smaller diameter end joined with the outer periphery of the annular disc 32 and a larger diameter end located rearwardly of the smaller diameter end.
  • the annular disc 32 is partially reduced in width to enable the associated part of the air guide ring 30 to be formed not to project beyond the upper end of the radiator 12.
  • the fan shroud 22 is formed into a single piece from a synthetic resinous material by injection molding. That is, the air guide means 28 in the embodiment of Figs. 3 to 5 is formed integral with the remaining part of the fan shroud 22.
  • a fan shroud according to the second embodiment of the present invention is generally indicated at 22' and shown to comprise an air guide means 28' including an air guide ring 30' and an annular disc 32' which are integral with each other but formed separately from the cylindrical flange 26' with a view to making the production of the mold and the molding operation easy.
  • the separately formed air guide means 28' is bonded at the flanged inner periphery of the annular disc 32' to the outer cylindrical surface of the cylindrical flange 26'.
  • a fan shroud according to the third embodiment of the present invention is indicated at 22" and shown to comprise an air guide ring 30" placed around the cylindrical flange 26" at a predetermined space therebetween.
  • the air guide ring 30" has a front end joined directly with the fan shroud proper and a rear free end projecting more rearwards than that of the cylindrical flange 26".
  • the air guide means 28" is constituted by the air guide ring 30" only, and the fan shroud 22" is formed into a single piece from a synthetic resinous material by injection molding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP82107826A 1981-08-31 1982-08-25 Enveloppe de ventilateur Expired EP0073476B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13664181A JPS5838319A (ja) 1981-08-31 1981-08-31 フアンシユラウド
JP136641/81 1981-08-31

Publications (3)

Publication Number Publication Date
EP0073476A2 true EP0073476A2 (fr) 1983-03-09
EP0073476A3 EP0073476A3 (en) 1983-08-10
EP0073476B1 EP0073476B1 (fr) 1986-12-17

Family

ID=15180054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107826A Expired EP0073476B1 (fr) 1981-08-31 1982-08-25 Enveloppe de ventilateur

Country Status (3)

Country Link
EP (1) EP0073476B1 (fr)
JP (1) JPS5838319A (fr)
DE (1) DE3274750D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166807A (en) * 1984-08-30 1986-05-14 Daimler Benz Ag Air-conveying device for a heat exchanger of a water-cooled internal combustion engine
WO1989007717A1 (fr) * 1988-02-11 1989-08-24 Robert Bosch Gmbh Ventilateur axial
EP1710413A2 (fr) 2005-04-06 2006-10-11 Faurecia Cooling Systems Element de canalisation pour bloc avant de vehicule automobile, bloc avant et carenage associes
KR101121598B1 (ko) * 2004-04-22 2012-03-16 셰브론 필립스 케미컬 컴퍼니 엘피 크롬/알루미나 촉매를 사용하여 제조된 폴리머 및 설페이트처리에 의한 활성 크롬/알루미나 촉매 제조 방법

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63314398A (ja) * 1987-06-18 1988-12-22 Matsushita Electric Ind Co Ltd 電気機器の送風装置
US7331759B1 (en) 2004-03-04 2008-02-19 Bou-Matic Technologies Corporation Drying fan
US8579582B1 (en) 2006-03-21 2013-11-12 Technologies Holdings Corp. Efficient drying fan

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635285A (en) * 1970-05-11 1972-01-18 Gen Motors Corp Cooling fan
JPS5117738A (en) * 1974-07-31 1976-02-12 Isuzu Motors Ltd Enjinno reikyakusochi
US3937192A (en) * 1974-09-03 1976-02-10 General Motors Corporation Ejector fan shroud arrangement
US4061188A (en) * 1975-01-24 1977-12-06 International Harvester Company Fan shroud structure
US4329946A (en) * 1979-10-09 1982-05-18 General Motors Corporation Shroud arrangement for engine cooling fan

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166807A (en) * 1984-08-30 1986-05-14 Daimler Benz Ag Air-conveying device for a heat exchanger of a water-cooled internal combustion engine
US4655686A (en) * 1984-08-30 1987-04-07 Daimler-Benz Aktiengesellschaft Air conveying device on a radiator for water-cooled internal combustion engines
WO1989007717A1 (fr) * 1988-02-11 1989-08-24 Robert Bosch Gmbh Ventilateur axial
KR101121598B1 (ko) * 2004-04-22 2012-03-16 셰브론 필립스 케미컬 컴퍼니 엘피 크롬/알루미나 촉매를 사용하여 제조된 폴리머 및 설페이트처리에 의한 활성 크롬/알루미나 촉매 제조 방법
EP1710413A2 (fr) 2005-04-06 2006-10-11 Faurecia Cooling Systems Element de canalisation pour bloc avant de vehicule automobile, bloc avant et carenage associes
FR2884182A1 (fr) 2005-04-06 2006-10-13 Faurecia Bloc Avant Element de canalisation pour bloc avant de vehicule automobile, bloc avant et carenage associes.
EP1710413A3 (fr) * 2005-04-06 2007-11-07 Faurecia Cooling Systems Element de canalisation pour bloc avant de vehicule automobile, bloc avant et carenage associes

Also Published As

Publication number Publication date
EP0073476B1 (fr) 1986-12-17
DE3274750D1 (en) 1987-01-29
JPS5838319A (ja) 1983-03-05
EP0073476A3 (en) 1983-08-10

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