EP0084868A1 - Construction à écoulement amélioré d'une enveloppe insonorisant le bruit généré par un moteur à combustion interne avec refroidissement liquide et son ventilateur - Google Patents

Construction à écoulement amélioré d'une enveloppe insonorisant le bruit généré par un moteur à combustion interne avec refroidissement liquide et son ventilateur Download PDF

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Publication number
EP0084868A1
EP0084868A1 EP83100502A EP83100502A EP0084868A1 EP 0084868 A1 EP0084868 A1 EP 0084868A1 EP 83100502 A EP83100502 A EP 83100502A EP 83100502 A EP83100502 A EP 83100502A EP 0084868 A1 EP0084868 A1 EP 0084868A1
Authority
EP
European Patent Office
Prior art keywords
fan
capsule
section
cross
flow
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
EP83100502A
Other languages
German (de)
English (en)
Other versions
EP0084868B1 (fr
Inventor
Uwe Dr. Dipl.-Ing. Buddenhagen
Manfred Ing. Grad. Stiglmaier
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.)
MAN Truck and Bus SE
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
MAN Nutzfahrzeuge AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG, MAN Nutzfahrzeuge AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Priority to AT83100502T priority Critical patent/ATE27037T1/de
Publication of EP0084868A1 publication Critical patent/EP0084868A1/fr
Application granted granted Critical
Publication of EP0084868B1 publication Critical patent/EP0084868B1/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
    • 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
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air

Definitions

  • the invention relates to a cooling system for a liquid-cooled internal combustion engine with one or more coolers and a fan assigned to the coolers.
  • Fig. 1 The cooling air is drawn in by fan 3 via air duct 2 through water cooler 1 (and, if present, charge air cooler 5). It leaves the fan at a low pressure ratio on the fan in a predominantly axial direction V 1 and at a higher pressure ratio (due to the design of the water cooler 1, or by connecting a charge air cooler 5) in accordance with V 2 with a strong radial speed component. The air then flows freely around the engine 4. In this arrangement, the fan usually protrudes somewhat out of the air duct 2 at the rear.
  • a solution with capsule 6 is available according to the current state of the art (Fig. 2), which is cylindrical in the area of the air outlet from the fan and can also be continued via the motor as required.
  • This solution has the power that the radial component of the air speed at the fan outlet is suppressed and thus the efficiency of the fan and the performance of the cooling system decrease. This results in additional costs for larger coolers or fans and, with the latter, additional noise and higher fuel consumption.
  • the object of the invention is to provide a cooling air duct which reduces the performance of the cooling system as little as possible.
  • a capsule version 12 is proposed, which is characterized in that it has an extension in the area of the air outlet from the fan, which has the oblique air outlet (with radial speed component) as in the case of the unenclosed fan (Fig. 2).
  • a panel 8 on the rear of the fan as shown in Fig. 4, proposed.
  • the flow conditions are more favorable (Fig. 5 above) and the efficiency of the fan improves. This partially eliminates the negative influence of the longer cooling air flow (e.g. across the engine, larger flow resistances).
  • the edge areas of the cladding at the fan outlet are shaped according to the streamlined course of the unenclosed fan.
  • the flow cross-section downstream should be increased as gradually as possible. In the central region of the cladding, its shape is expediently adapted to the respective contours of the fan or the fan blades. In Fig. 4 to 8, this central district is flat, but it can also take any other appropriate form.
  • the area of high flow velocities at the fan outlet should be kept as free as possible from discontinuities in the shape (of the capsule and cladding) and from flow obstacles (components) that can generate additional noise there.
  • the cover on the back of the fan should be as close as possible to it. It can also form a unit together with the fan: Fig. 7 (here; Verklei exercise 11).
  • FIG. 8 A simplified version of the variant shown in Fig. 7 is shown in Fig. 8: Here only the first part of the fan capsule with a continuously growing cross-section has been retained and the engine and gearbox have been surrounded with a version similar to capsule 12, Fig. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP83100502A 1982-01-27 1983-01-21 Construction à écoulement amélioré d'une enveloppe insonorisant le bruit généré par un moteur à combustion interne avec refroidissement liquide et son ventilateur Expired EP0084868B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100502T ATE27037T1 (de) 1982-01-27 1983-01-21 Stroemungsguenstige konstruktion einer kapsel fuer die daemmung des luefter- und motoren-geraeusches bei verbrennungsmotoren mit fluessigkeitskuehlung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823202592 DE3202592A1 (de) 1982-01-27 1982-01-27 Stroemungsguenstige konstruktion einer kapsel fuer die daemmung des luefter- und motoren-geraeusches bei verbrennungsmotoren mit fluessigkeitskuehlung
DE3202592 1982-01-27

Publications (2)

Publication Number Publication Date
EP0084868A1 true EP0084868A1 (fr) 1983-08-03
EP0084868B1 EP0084868B1 (fr) 1987-05-06

Family

ID=6154038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100502A Expired EP0084868B1 (fr) 1982-01-27 1983-01-21 Construction à écoulement amélioré d'une enveloppe insonorisant le bruit généré par un moteur à combustion interne avec refroidissement liquide et son ventilateur

Country Status (3)

Country Link
EP (1) EP0084868B1 (fr)
AT (1) ATE27037T1 (fr)
DE (2) DE3202592A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447195A1 (de) * 1984-12-22 1986-07-03 M A N Nutzfahrzeuge GmbH, 8000 München Kuehlvorrichtung mit axialluefter in kapselbauweise
EP0191012A1 (fr) * 1985-02-08 1986-08-13 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Moteur à combustion enveloppé pour l'entraînement d'automobiles
WO2012128767A1 (fr) * 2011-03-24 2012-09-27 International Truck Intellectual Property Company, Llc Écran de protection d'écoulement d'air de moteur

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR464962A (fr) * 1913-11-15 1914-04-04 App Rateau Soc D Expl Des Diffuseur pour ventilateurs ou pompes du genre hélicoide
GB510937A (en) * 1937-12-06 1939-08-10 Brandenburgische Motorenwerke Improvements in or relating to conduits for guiding cooling air from a blower to an air cooled radial engine
FR1283147A (fr) * 1960-03-11 1962-01-27 Colchester Woods Silencieux
GB1171001A (en) * 1966-03-28 1969-11-19 Rotron Inc Axial Flow Propeller Fan.
FR2170706A5 (fr) * 1972-02-01 1973-09-14 Bosch Gmbh Robert
DE2506364A1 (de) * 1975-02-14 1976-08-19 Volkswagenwerk Ag Einrichtung an einem fluegelrad eines geblaeses zur verringerung des luftschalls
DE2703227A1 (de) * 1977-01-27 1978-08-03 Volkswagenwerk Ag Geraeuschdaempfendes gehaeuse fuer eine brennkraftmaschine
DE2722089A1 (de) * 1977-05-16 1978-11-30 Steyr Daimler Puch Ag Kraftfahrzeug mit gekapseltem motor
GB2038938A (en) * 1978-11-18 1980-07-30 Fodens Ltd Cooling I.C. Engines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115660A (en) * 1933-03-16 1938-04-26 Cyrus J Fitton Vacuum steam cooling system
DE1428273C3 (de) * 1964-09-29 1973-01-04 Siemens Ag, 1000 Berlin U. 8000 Muenchen Flügelrad für einen geräuscharmen Axialventilator
DE2062765A1 (de) * 1970-12-19 1972-07-06 Daimler-Benz AG, 7000 "Stuttgart Einrichtung zur Kühlung von Kraftfahrzeug-Brennkraftmaschinen
DE2722101C2 (de) * 1977-05-16 1985-05-30 Steyr-Daimler-Puch Ag, Wien Gekapselte, wassergekühlte Brennkraftmaschine für Kraftfahrzeuge
DE2809681A1 (de) * 1978-03-07 1979-09-20 Farymann Diesel Maschinenaggregat mit schalldaemmender verkleidung
DE3011673C2 (de) * 1980-03-26 1982-06-09 Deere & Co., Moline, Ill., US, Niederlassung Deere & Co. European Office, 6800 Mannheim Land- oder Baumaschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR464962A (fr) * 1913-11-15 1914-04-04 App Rateau Soc D Expl Des Diffuseur pour ventilateurs ou pompes du genre hélicoide
GB510937A (en) * 1937-12-06 1939-08-10 Brandenburgische Motorenwerke Improvements in or relating to conduits for guiding cooling air from a blower to an air cooled radial engine
FR1283147A (fr) * 1960-03-11 1962-01-27 Colchester Woods Silencieux
GB1171001A (en) * 1966-03-28 1969-11-19 Rotron Inc Axial Flow Propeller Fan.
FR2170706A5 (fr) * 1972-02-01 1973-09-14 Bosch Gmbh Robert
DE2506364A1 (de) * 1975-02-14 1976-08-19 Volkswagenwerk Ag Einrichtung an einem fluegelrad eines geblaeses zur verringerung des luftschalls
DE2703227A1 (de) * 1977-01-27 1978-08-03 Volkswagenwerk Ag Geraeuschdaempfendes gehaeuse fuer eine brennkraftmaschine
DE2722089A1 (de) * 1977-05-16 1978-11-30 Steyr Daimler Puch Ag Kraftfahrzeug mit gekapseltem motor
GB2038938A (en) * 1978-11-18 1980-07-30 Fodens Ltd Cooling I.C. Engines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447195A1 (de) * 1984-12-22 1986-07-03 M A N Nutzfahrzeuge GmbH, 8000 München Kuehlvorrichtung mit axialluefter in kapselbauweise
EP0185948A3 (fr) * 1984-12-22 1987-08-12 MAN Nutzfahrzeuge Aktiengesellschaft Dispositif de refroidissement avec un ventilateur dans un guidage de l'air
EP0191012A1 (fr) * 1985-02-08 1986-08-13 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Moteur à combustion enveloppé pour l'entraînement d'automobiles
WO2012128767A1 (fr) * 2011-03-24 2012-09-27 International Truck Intellectual Property Company, Llc Écran de protection d'écoulement d'air de moteur

Also Published As

Publication number Publication date
DE3202592A1 (de) 1983-08-04
ATE27037T1 (de) 1987-05-15
DE3371386D1 (en) 1987-06-11
EP0084868B1 (fr) 1987-05-06

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