EP3242038A1 - Ventilateur pour un système de refroidissement d'un moteur hors-bord - Google Patents

Ventilateur pour un système de refroidissement d'un moteur hors-bord Download PDF

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Publication number
EP3242038A1
EP3242038A1 EP17000550.8A EP17000550A EP3242038A1 EP 3242038 A1 EP3242038 A1 EP 3242038A1 EP 17000550 A EP17000550 A EP 17000550A EP 3242038 A1 EP3242038 A1 EP 3242038A1
Authority
EP
European Patent Office
Prior art keywords
blower
cover
flywheel
fan
internal combustion
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.)
Withdrawn
Application number
EP17000550.8A
Other languages
German (de)
English (en)
Inventor
Claus Brüstle
Richard Davis
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.)
Neander Motors AG
Original Assignee
Neander Motors 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 Neander Motors AG filed Critical Neander Motors AG
Publication of EP3242038A1 publication Critical patent/EP3242038A1/fr
Withdrawn legal-status Critical Current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
    • F01P1/00—Air cooling
    • F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/001—Arrangements, apparatus and methods for handling fluids used in outboard drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/007—Other engines having vertical crankshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/06—Engines with means for equalising torque
    • F02B75/065—Engines with means for equalising torque with double connecting rods or crankshafts
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • 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
    • F01P2050/00—Applications
    • F01P2050/02—Marine engines
    • F01P2050/12—Outboard engine

Definitions

  • the invention relates to a blower for an air guidance system of an outboard motor, which comprises an internal combustion engine and a cover which delimits an interior space for the internal combustion engine according to the preamble of patent claim 1.
  • an internal combustion engine US 6,302,749 B1 working as an outboard engine to power a watercraft.
  • the internal combustion engine is surrounded by a cover which defines an interior space.
  • far enveloping cover inlet and outlet devices are provided for moving in the interior of said cover, serving to act on the housing surfaces of the engine air streams.
  • the internal combustion engine comprises an upright multi-piston crankshaft which drives balance shafts at an upper end portion by means of a endless drive.
  • An alternator with an upright about an upper side of a housing of the internal combustion engine protruding axis of rotation is provided with a fan that ventilates the interior of a hood-like Endlostriebabdeckung and vented.
  • the DE 102 05 109 B4 is an outboard motor again, which is provided with a vertically oriented crankshaft and a plurality of attached to an outer side of a machine housing of the outboard motor ancillaries.
  • a cover envelops the outboard motor or ancillaries.
  • On a rear side of the cover air inlet slots are provided which cooperate with an adjacent spoiler.
  • the air guiding device ensures that fresh air is conducted into an upper and a lower region of the interior of the cover or to the machine housing and to the ancillaries.
  • the internal combustion engine has a housing which accommodates two parallel and upright crankshafts of a crankshaft system.
  • the object of the invention is to design a blower for an air duct system of an outboard motor with an internal combustion engine and a cover defining an interior, which fan is arranged in the interior in the manner and effective that in the interior moving air streams contribute specifically to the cooling of the internal combustion engine. But it should also be ensured that the fan and flywheels of a crankshaft system of the internal combustion engine for personal protection suitable provisions are made.
  • the fan influences air flows in the interior of the cover such that they flow into the interior of the cover on the one hand via the inlet opening and the first guide;
  • these air flows are selectively guided past surfaces of the internal combustion engine and its ancillary equipment, and they cause a reliable cooling effect of said surfaces within the cover.
  • the fan is placed on the flywheel of the crankshaft of the internal combustion engine, and it is supported by said flywheel and taken away, ie the functional range of the flywheel is extended and the fan and the flywheel are displayed as an assembly.
  • the cooling effect is assisted by the fan having a mixed flow impeller system, radial flow or the like, and directing heated airflows outwardly or into the atmosphere via a guide and an outlet opening in the cover.
  • the flywheel has a radial bearing area on which a corresponding crankshaft is provided Supporting portion of the fan wheel rests, with one or more the flywheel and the fan wheel to a unit connecting screws are effective.
  • the fan wheel is formed by a cylindrical body and having two axially spaced ring carrier, which are connected to each other with the interposition of fan blades.
  • An ingenious solution is that the fan wheel is provided in the region of an axial support region penetrating the support region and the flywheel is held in position on the shaft journal with a dome-like air-conducting element for heated air.
  • the fan wheel and the flywheel are covered with a protective cover having a lid portion with a central inlet opening and a jacket portion.
  • the protective hood is designed in the manner of a housing, in which the second guide for the heated air flows is integrated, and that the housing has a tangential section which is provided at an end region with an outlet means, wherein the outlet means is connected to an outlet opening in the cover.
  • the guard has on its outside one or more stiffening ribs, which allow the use of lightweight materials such as composites, plastics or the like
  • the invention is optimized by the outboard motor comprising an internal combustion engine with a two upright crankshaft crankshaft system, which crankshaft with shaft journals protrude above an upper side of the housing of the engine, wherein the shaft journal flywheels are fixed, which are viewed in the vertical direction offset from each other and overlap each other.
  • the protective hood and the connection guard are shown as one-piece or multiple-piece fan flywheel cover.
  • blower flywheel cover is provided at outer areas with fixing eyes, on which the blower flywheel cover is kept in position by means of easily realizable holding devices on the housing of the internal combustion engine.
  • holding devices are easily realizable.
  • each holding device cooperates with the interposition of an elastic support member with the fan flywheel cover.
  • the air flows through the inlet opening in the first upright hood wall and the inlet opening adjacent said first guide into the interior of the cover, the fan adjacent to a viewed in the longitudinal direction of the adoptedbormotors spaced from the first mounting wall and extending second upright hood wall of the cover is arranged and the air flows over a relatively large longitudinally extending area of action past the surfaces of the engine and the ancillaries and that the fan heated air streams as exhaust air through the intermediary of the second guide in an outlet opening in the cover promotes the outside of the cover or in the atmosphere.
  • An outboard motor 1 is used to drive a vessel, not shown in waters.
  • the outboard motor 1 comprises an internal combustion engine 2, viewed in the direction of travel A of the ship on a housing GBr a back 3, a front side 4 and seen in the height direction BB has a top 5 and a bottom 6.
  • the internal combustion engine 2 is bounded by a left longitudinal side 7 and a right longitudinal side 8.
  • ancillaries such as 9, 10 and 11 - Fig. 5- grown, which will not be discussed further.
  • a cover 12 surrounds the internal combustion engine 1 with its ancillary units 9, 10 and 11 or their surfaces, and it forms an interior 13.
  • a Inlet opening 15 is provided, via the air flows Lst in the interior 13 of the cover 12 to flow.
  • the latter also has an outlet opening 16 - Fig. 1 and 5 -
  • For exhaust air flows AL which in an upright, left side hood wall 17th is incorporated, with a defined distance to the rear hood wall 14.
  • Lst is a arranged on the top side 5 of the engine 2 blower 18 - Fig. 1, 2 . 3 and 5 - which is driven by the latter.
  • a seen in the direction of travel A front second hood wall bears the reference numeral 19 -. Fig. 1 and 2 -.
  • the internal combustion engine 2 of the reciprocating type has at least one reciprocating piston, which are in operative connection by means of two connecting rods with two parallel aligned and rotating in opposite directions of rotation first and second crankshafts 20 and 21.
  • the first and second crankshafts 20 and 21 of a crankshaft system 22 - Fig. 1 and 2 are relatively upright to a not shown waterline of the ship and propel by means of a drive shaft 23 below a waterline a ship propeller 24 Fig. 1 - at.
  • the crankshafts 20 and 21 protrude beyond the upper side 5 of the internal combustion engine 1, lie transversely to the direction of travel A symmetrically to a central longitudinal plane CC.
  • first and second flywheels 25 and 26 - Fig. 1 and 2 - Mistake.
  • first flywheel 25 and the second flywheel 26 are offset in the height direction BB offset from one another to the crankshafts 20 and 21, where they partially overlap each other for space-saving reasons - Fig. 2 and 5 -.
  • the first flywheel 25 is located above the second flywheel 25, which first flywheel 25 carries the fan 18 - Fig. 1 -.
  • the internal combustion engine 1 accommodates the crankshafts 20 and 21 with a housing GBr, and the internal combustion engine 1 operates according to the diesel injection method, with an exhaust gas turbocharger device 27 with compressor 28 and exhaust gas turbine 29 being provided for its operational optimization.
  • the exhaust-gas turbocharger device 27 is connected to an intake system 30 of the internal combustion engine 1, which exhaust-gas turbocharger device 27 and intake system 30 -Fg.5- are arranged on the upper side 5 of the internal combustion engine 1, not far from the rear hood wall 14 of the cover 12. Further details of the internal combustion engine 1 are the ones handling a similar internal combustion engine EP 2 980 374 A1 refer to.
  • the inlet opening 15 is arranged at an upper end region Ebo adjacent to an upper ceiling lining Dv of the hood wall 14, Fig. 1 -
  • the first guide 32 extends from the inlet opening 15 upright in the direction of bottom 6 of the internal combustion engine 2. Adjacent to this bottom 6, the guide 32 has an overflow region 35 -. Fig. 1 and 3 - Towards the interior 13.
  • the first guide 32 is formed by a hood wall portion 37 of the hood wall 14 and an upright inner wall 38 of the cover 12; Hood section 37 and inner wall 38 form an inflow channel 39 - Fig. 1 and 3 -.
  • the blower wheel 40 and the flywheel 25 are structurally combined, in other words they are, for example, assembled in the manner of a module.
  • a shaft journal 42 is provided, which fixed by means of a frictional connection 43 -Keilitati- with the first flywheel 25 connected is.
  • the first flywheel 25 carries the fan wheel 40, to be hot, it is placed on top of the flywheel 25.
  • the blower wheel 40 cooperates with a blower housing GH as a mixed flow impeller system, radial flow or the like.
  • the first flywheel 25 has a radial support portion 44 on which a corresponding support portion 45 of the fan wheel 40 rests directly.
  • the support portion 44 and the support portion 45 are connected together by means of screws 46 and 47 -Fig. 7.
  • the blower wheel 40 is formed by a cylindrical body ZK and has two axially spaced lower and upper ring carriers 48 and 49 which, with the interposition of a plurality of radial impeller blades 50, combine to form a composite, plastic or the like assembly are.
  • Adjacent an outer periphery 51 of the flywheel 25, a circumferential boundary web 52 is mounted, which projects beyond the radial support portion 44.
  • the blower wheel 40 has an axial air-guiding element 56 which holds the flywheel 25 in position on the crankshaft 20 and projects with a screw head 54 over the support region 44 and the support region 45.
  • the heated air streams Lstw are passed into the second guide 33 of the blower 18.
  • the air guide element 56 is fastened by means of screws 57 and 58 to the support region 45 of the fan wheel 40.
  • the flywheel 25 and the fan wheel 40 are clad with a cylindrical protective cover 59, which comprises a cover region 61 having an inlet opening 60 and a jacket region 62 surrounding it.
  • the second guide 33 is integrated for the heated air streams Lstw.
  • the blower housing GH has a channel-shaped tangential section 64 which is provided at an end region 65 with an outlet device 66, Fig. 5 and 6 -. In this case, the outlet device 66 is connected to the outlet opening 16 in the cover 12.
  • the protective hood 59 is provided on an inner side 67 with one or more, for example, horizontal stiffening ribs 68 and 69.
  • the inflow opening 60 is delimited by a flange shutoff 70 oriented in the direction of fan wheel blades 50, Fig. 3 - Which is brought as close as possible to the impeller blades 50 with one end 71 in order to reduce pressure losses of the blower 18 during operation at least.
  • the one flywheel 26, which lies below the other flywheel 25, is clad with a protective cover 59 supplementing terminal protection hood 72, which has a connection portion 73 and a cylinder portion 74.
  • a lid portion 75 which is stepped toward the lid portion 61, one or more part-circular vent slot openings 76 are provided.
  • the protective cover 59 and the connection protection cover 72 are shown as a one-piece or multi-part blower flywheel cover 77 made of plastic, composite or the like.
  • On outside areas AB 1 to 4 of the blower flywheel cover 76 fastening eyes 78 are formed on which the blower flywheel cover 77 held by means of holding means 79 on the housing GBr of the internal combustion engine 2 in position.
  • Each holding device 79 cooperates with the fastening eye 78 of the blower flywheel cover 76 by means of an elastic support element 80
  • the air streams Lst pass through the first inlet opening 15 in the first upright hood wall 14 and the adjoining first guide 32 into the interior 13 of the cover 12, wherein the fan 18 adjacent to the viewed in the longitudinal direction EE of the outboard motor 1 spaced from the first hood wall 14 itself extending second upright hood wall 19 of the cover 12 is arranged and the air flows Lst over a relatively large extending in the longitudinal direction EE effective area Wb past the surfaces of the engine 2 and the ancillaries 9, 10 and 11 promotes and that the fan 18 heated air flows Lstw as exhaust air AL mediated by the second guide 33 into the outlet opening 16 in the cover 12th to the outside from the cover 12 and promotes into the atmosphere.
  • the efficient distribution of the air flows Lst to the surfaces of the internal combustion engine 2 and the auxiliary units 9, 10 and 11 is optimized by the fact that between the overflow region 35 and the inlet opening 35 of the blower 18 results in a height difference through which the air streams Lst are distributed to said surfaces ,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP17000550.8A 2016-04-20 2017-04-03 Ventilateur pour un système de refroidissement d'un moteur hors-bord Withdrawn EP3242038A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016004776.3A DE102016004776A1 (de) 2016-04-20 2016-04-20 Gebläse für ein Luftführungssystem eines Außenbordmotors

Publications (1)

Publication Number Publication Date
EP3242038A1 true EP3242038A1 (fr) 2017-11-08

Family

ID=58536698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000550.8A Withdrawn EP3242038A1 (fr) 2016-04-20 2017-04-03 Ventilateur pour un système de refroidissement d'un moteur hors-bord

Country Status (4)

Country Link
US (1) US10273863B2 (fr)
EP (1) EP3242038A1 (fr)
JP (1) JP2017198211A (fr)
DE (1) DE102016004776A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11598294B2 (en) * 2018-08-21 2023-03-07 Apexturbo Llc Hub-less and nut-less turbine wheel and compressor wheel designs and installation/removal tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302749B1 (en) 1998-01-19 2001-10-16 Honda Giken Kogyo Kabushiki Kaisha Outboard motor
US20060288970A1 (en) * 2005-06-23 2006-12-28 Hitomi Miyake Combustion engine having unitary structure of cooling fan and starter pulley
US20070054571A1 (en) * 2005-09-08 2007-03-08 Koshiro Inaba Watercraft
US7806741B1 (en) * 2009-02-11 2010-10-05 Brunswick Corporation Marine propulsion system with separate air intake and cooling systems
EP2696054A1 (fr) 2012-08-10 2014-02-12 Neander Motors AG Moteur à combustion interne à piston élévateur, comprenant au moins un piston élévateur
US20140056703A1 (en) * 2012-08-23 2014-02-27 Honda Motor Co., Ltd. Cooling device for use with engines
DE10205109B4 (de) 2001-02-14 2015-03-05 Honda Giken Kogyo K.K. Außenbordmotor
EP2980374A1 (fr) 2014-07-30 2016-02-03 Neander Motors AG Dispositif d'aeration doté de séparateur d'huile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445547A (en) * 1992-05-22 1995-08-29 Honda Giken Kogyo Kabushiki Kaisha Outboard motor
JP3832898B2 (ja) * 1996-06-19 2006-10-11 ヤマハマリン株式会社 船外機
JP2007296997A (ja) * 2006-05-01 2007-11-15 Honda Motor Co Ltd 船外機
JP5688341B2 (ja) * 2011-07-23 2015-03-25 本田技研工業株式会社 船外機
DE102012015907B3 (de) * 2012-08-10 2013-10-17 Neander Motors Ag Hubkolbenbrennkraftmaschine, umfassend zumindest einen Hubkolben

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302749B1 (en) 1998-01-19 2001-10-16 Honda Giken Kogyo Kabushiki Kaisha Outboard motor
DE10205109B4 (de) 2001-02-14 2015-03-05 Honda Giken Kogyo K.K. Außenbordmotor
US20060288970A1 (en) * 2005-06-23 2006-12-28 Hitomi Miyake Combustion engine having unitary structure of cooling fan and starter pulley
US20070054571A1 (en) * 2005-09-08 2007-03-08 Koshiro Inaba Watercraft
US7806741B1 (en) * 2009-02-11 2010-10-05 Brunswick Corporation Marine propulsion system with separate air intake and cooling systems
EP2696054A1 (fr) 2012-08-10 2014-02-12 Neander Motors AG Moteur à combustion interne à piston élévateur, comprenant au moins un piston élévateur
US20140056703A1 (en) * 2012-08-23 2014-02-27 Honda Motor Co., Ltd. Cooling device for use with engines
EP2980374A1 (fr) 2014-07-30 2016-02-03 Neander Motors AG Dispositif d'aeration doté de séparateur d'huile

Also Published As

Publication number Publication date
DE102016004776A1 (de) 2017-10-26
JP2017198211A (ja) 2017-11-02
US20170306829A1 (en) 2017-10-26
US10273863B2 (en) 2019-04-30

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