EP0073476B1 - Ventilatorverkleidung - Google Patents

Ventilatorverkleidung Download PDF

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Publication number
EP0073476B1
EP0073476B1 EP82107826A EP82107826A EP0073476B1 EP 0073476 B1 EP0073476 B1 EP 0073476B1 EP 82107826 A EP82107826 A EP 82107826A EP 82107826 A EP82107826 A EP 82107826A EP 0073476 B1 EP0073476 B1 EP 0073476B1
Authority
EP
European Patent Office
Prior art keywords
fan
radiator
fan shroud
shroud
air guide
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.)
Expired
Application number
EP82107826A
Other languages
English (en)
French (fr)
Other versions
EP0073476A3 (en
EP0073476A2 (de
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/de
Publication of EP0073476A3 publication Critical patent/EP0073476A3/en
Application granted granted Critical
Publication of EP0073476B1 publication Critical patent/EP0073476B1/de
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 a fan shroud arranged in the rear of a radiator of an automotive engine comprising a ventilation opening in which a cooling fan is disposed to draw air through the radiator and an air guide means positioned rearwardly of the radiator.
  • Figs. 1 and 2 show an 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 similar fan shroud arrangement is known from EP-A-0026997, disclosing a cooling fan with an inlet shroud attached to the tips of the fan blades.
  • the cooling fan including the inner fan shroud at the tips of the fan blades is fitted rotatably within a fixed shroud secured to an engine cooling radiator.
  • the outer fixed shroud exhibits a cylindrical ejector portion extending axially rearwards by a predetermined length beyond said fan blades in order to block a recirculation passage formed by the clearance between the fixed and rotatable shrouds by a portion of the discharged air stream.
  • the claimed invention has been designed to effectively increase the efficiency of the cooling system of an automotive vehicle in accordance with the preamble of the claim and to prevent the air which 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.
  • the invention aims at a less complicated fan shroud which is easy to manufacture and to assemble to the engine cooling system.
  • an air guide means is formed by an air guide ring projecting integrally rearwards from the intermediate portion of the fan shroud radially spaced from the flange portion thereof.
  • a free annular rear edge of the air guide ring projects more rearwards than an annular near edge of the flange portion of the fan shroud.
  • the air guide ring deflects axially air which is going to escape radially from the cooling fan after having been sucked through the radiator.
  • the fan shroud according to this invention is quite easy to manufacture as a single piece by injection molding, and is effective in deflecting air axially rearwards of the cooling fan. Hence, the amount of air being supplied to the constituent parts of the engine such as the oil pan and the exhaust manifold is remarkably increased.
  • 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 fan shroud 22 further comprises an air guide means 28 provided to the rear of the fan shroud 22 for deflecting air that is going to escape radially of a cooling fan (not shown) which is disposed in the ventilation opening 24.
  • the air guide means 28 comprises an air guide ring 30 placed around the cylindrical flange 26 at a predetermined space in between.
  • the air guide ring 30 has a front end joined directly with the fan shroud 22 proper and a rear free end projecting more rearwards than that of the cylindrical flange 26, i.e. the air guide ring projects integrally rearwards from an inclined intermediate portion of fan shroud 22 and the fan shroud 22 is formed into a single piece from a synthetic resinous material by injection molding.
  • air that is going to escape radially of the cooling fan after having passed through the radiator 12 is efficiently deflected rearwardly of the radiator 12 making it possible to prevent the air that has been heated during its passage through the radiator 12 from being recirculated back to the front of the radiator 12 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.

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)

Claims (1)

  1. Stationäre Lüfterhaube (22), die an der Rückseite eines Kühlers (12) eines Kraftfahrzeugmotors (14) angeordnet ist, mit einem Einlaßabschnitt, dessen Querschnitt im wesentlichen dem zugehörigen Querschnitt des Kühlers (12) entspricht, einem Zwischenabschnitt mit allmählich abnehmendem Querschnitt und einem Flanschabschnitt (26) am hinteren Ende der Lüfterhaube (22), der eine Lüftungsöffnung (24) zur Aufnahme eines Kühllüfters (16) aufweist, wobei die Lüfterhaube (22) eine Luftführungseinrichtung (28) an der Rückseite des Kühlers (12) bildet, dadurch gekennzeichnet, daß die Luftführungseinrichtung (28) durch einen Luftführungsring (30) gebildet ist, der einstückig von dem Zwischenabschnitt der Lüfterhaube (22) nach hinten in radialem Abstand von dem Flanschabschnitt (24) der Lüfterhaube hervorsteht, wobei eine freie, ringförmige Hinterkante der Luftführungsringes (30) weiter nach hinten hervorsteht als eine ringförmige Hinterkante des Flanschabschnittes (26) der Lüfterhaube (22).
EP82107826A 1981-08-31 1982-08-25 Ventilatorverkleidung Expired EP0073476B1 (de)

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 EP0073476A2 (de) 1983-03-09
EP0073476A3 EP0073476A3 (en) 1983-08-10
EP0073476B1 true EP0073476B1 (de) 1986-12-17

Family

ID=15180054

Family Applications (1)

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

Country Status (3)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431801C1 (de) * 1984-08-30 1985-10-17 Daimler-Benz Ag Luftfoerdereinrichtung an einem Kuehler fuer wassergekuehlte Brennkraftmaschine
JPS63314398A (ja) * 1987-06-18 1988-12-22 Matsushita Electric Ind Co Ltd 電気機器の送風装置
DE3804217A1 (de) * 1988-02-11 1989-08-24 Bosch Gmbh Robert Axialluefter
US7331759B1 (en) 2004-03-04 2008-02-19 Bou-Matic Technologies Corporation Drying fan
BRPI0510174B1 (pt) * 2004-04-22 2016-04-26 Chevron Phillips Chemical Co método para preparação de um catalisador de polimerização, catalisador, composição catalisadora para polimerização de olefinas, método de uso do catalisador e para produção de um polímero, polímero e resina
FR2884182B1 (fr) 2005-04-06 2008-11-28 Faurecia Bloc Avant Element de canalisation pour bloc avant de vehicule automobile, bloc avant et carenage associes.
US8579582B1 (en) 2006-03-21 2013-11-12 Technologies Holdings Corp. Efficient drying fan

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026997A1 (de) * 1979-10-09 1981-04-15 General Motors Corporation Luftführung für Motorkühlgebläse

Family Cites Families (4)

* 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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026997A1 (de) * 1979-10-09 1981-04-15 General Motors Corporation Luftführung für Motorkühlgebläse

Also Published As

Publication number Publication date
JPS5838319A (ja) 1983-03-05
EP0073476A3 (en) 1983-08-10
DE3274750D1 (en) 1987-01-29
EP0073476A2 (de) 1983-03-09

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