EP2980374A1 - Dispositif d'aeration doté de séparateur d'huile - Google Patents

Dispositif d'aeration doté de séparateur d'huile Download PDF

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Publication number
EP2980374A1
EP2980374A1 EP15002144.2A EP15002144A EP2980374A1 EP 2980374 A1 EP2980374 A1 EP 2980374A1 EP 15002144 A EP15002144 A EP 15002144A EP 2980374 A1 EP2980374 A1 EP 2980374A1
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EP
European Patent Office
Prior art keywords
oil
internal combustion
combustion engine
separator
engine according
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
EP15002144.2A
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German (de)
English (en)
Other versions
EP2980374B1 (fr
Inventor
Claus Brüstle
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
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Neander Motors AG
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Publication date
Application filed by Neander Motors AG filed Critical Neander Motors AG
Publication of EP2980374A1 publication Critical patent/EP2980374A1/fr
Application granted granted Critical
Publication of EP2980374B1 publication Critical patent/EP2980374B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • 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
    • B63H20/002—Arrangements, apparatus and methods for handling fluids used in outboard drives for handling lubrication liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/08—Separating lubricant from air or fuel-air mixture before entry into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Definitions

  • the invention relates to an internal combustion engine of Hubkolbenbauart, for example in the form of an outboard motor for a boat according to the preamble of patent claim 1.
  • EP 10 2012 015 907 B3 comprising two reciprocating pistons moving in a cylinder crankcase. Each piston is coupled by two connecting rods with two crankshafts rotating in opposite directions of rotation. The crankshafts are upright to a waterline of the boat and affect a boat bolt to move the boat.
  • the internal combustion engine operates on the diesel process and is provided with a fuel injection system.
  • a turbocharger device having an exhaust gas turbine and a compressor. The latter is connected to the suction side of the internal combustion engine.
  • the DE 35 09 439 C2 is a device for venting a crankcase of an internal combustion engine for the separation of oil from an oil-gas mixture again. Through passages in the crankcase and a space of a valve mechanism of the cylinder head, the oil-and-gas mixture passes into a first chamber of an oil separator. A second chamber connects to the first chamber, wherein a control valve is provided between the first chamber and the second chamber. From the second chamber, a gas outlet duct leads into an intake system of the internal combustion engine.
  • blow-by gases starting from a crank chamber of the internal combustion engine, are supplied to an intake system of the internal combustion engine by flow channels which are in each case operatively connected to one another and configured in a cylinder crankcase, a cylinder block and a cylinder head.
  • the internal combustion engine which has at least one piston and two upright crankshafts and has an outboard motor, has a venting system with a highly effective oil separator device having an oil preseparator and an oil main separator. It makes a significant contribution to environmental protection, especially when using the outboard engine with boats on running and standing water.
  • a highly effective oil separator device having an oil preseparator and an oil main separator.
  • the oil-leakage gas mixture is transported by means of the arranged adjacent to the upper end discharge line from the crankcase of the cylinder crankcase in the ⁇ lvorabscheider, wherein for structural simplification, the discharge line is moved outside the engine housing along the upper end face.
  • the function of the venting system or the oil separation device is extended by also introducing the oil-leakage mixture from the valve camshaft area of the cylinder head into the oil preseparator and the main oil separator by means of a first passage.
  • the oil pre-separator has at least first and second upright guide chambers which are separated by a guide element into which a second passage between the chambers adjacent to the lower end face of the engine housing is incorporated for the passage of the oil-leak gas mixture.
  • An advantageous design of the ⁇ lvorabscheiders is achieved when the oil-leakage gas mixture in the first guide channel from top to bottom between the upper end and the lower end side along the guide element and enters through the second passage in the second guide chamber, via the said oil Leakage gas mixture flows in the direction of the upper end face and passes from there with the interposition of a third passage in the main oil separator.
  • the ⁇ lvorabscheider and the main oil separator are composed with the interposition of an annular spacer, such that between ⁇ lvorabscheider and spacers and spacers and ⁇ lhautabscheider run connecting planes and that the ⁇ lvorabscheider, the spacer and the oil main are connected to each other via one or more connecting screws , which connecting screws adjacent to an edge zone of the housing structure are effective approximately perpendicular to the connecting planes.
  • a high-level construction is achieved in that the oil separator is provided with a labyrinth, on which the oil-leakage gas mixture is passed, whereby on the one hand, the gas to the intake system and on the other hand the oil are separated to the oil pan.
  • the labyrinth has guide webs spaced apart from each other which alternately intermesh from opposite first and second upright sides and are arranged to direct separated oil of the oil-leakage gas mixture into return passages in the direction of the oil pan .
  • An internal combustion engine 1 of Hubkolbenbauart is designed as an outboard motor 2, which drives a boat 3. Of the boat 3, only one transverse rear wall 4 is shown, on which the outboard motor 2 is held in position by means of holding elements 5 and 6 in position.
  • the internal combustion engine 1 comprises two reciprocating pistons 7 and 8 - Fig. 3 - of which each piston, for example, 7 with the intermediary of two connecting rods 9 and 10 - Fig. 2 with two in opposite directions of rotation Dr1 and Dr2 and parallel to each other extending crankshafts 11 and 12 are in operative connection.
  • the crankshafts 11 and 12 are arranged upright to a waterline Wl of the boat 3 and drive one below the waterline Wl - Fig. 1 - acting boot bolt 13 on.
  • the crankshafts 11 and 12 are provided with flywheels 15 and 16, which overlap partially to save space - Fig.1 -.
  • An engine housing 17 of the internal combustion engine 1 is composed of a cylinder crankcase 18 accommodating the crankshafts 11 and 12 and a cylinder head 23 serving to accommodate intake and exhaust valves 19 and 20 and camshafts 21 and 22.
  • the engine housing 17 is exposed from an upper end face StO. Fig.1 - And a lower end face StU limited.
  • the internal combustion engine 1 operates according to the diesel injection method, with an exhaust gas turbocharger device 24 being provided on the upper end side StO for improving the torque curve, the fuel consumption and the exhaust gas emission values.
  • the exhaust gas turbocharger device 24 - Fig. 1- is formed by an exhaust gas turbine 25 and a compressor 26 connected to an intake system 27. Fig. 3 and 6 - The internal combustion engine 1 is connected.
  • the engine casing 17 is provided with a venting system 28 having an oil separator 29 and an oil separator 30 having an oil main separator 30.
  • Fig. 3 - Has, over the during operation of the internal combustion engine 1, in a crank chamber 32 of the cylinder crankcase 18 resulting oil leakage gas mixture.
  • the oil-leak gas mixture results from mixing even with optimum sealing between piston skirt Km and cylinder wall Zw - Fig. 2 - Gas passing through-also called blow-by gas- and smaller and larger oil drops that cause the movements of the crankshafts 11 and 12 and the connecting rods 9 and 10 in the crankcase.
  • the oil-leak gas mixture passes through the intermediary of a discharge line 33 extending adjacent the upper end face StO into the oil pre-separator 29, from where said oil-leakage gas mixture is conducted into the main oil separator 30.
  • this mixture is separated into the components oil and gas leakage, wherein the oil flows into a subsequent to the lower end side StU oil pan 34 and the leak gas in the vicinity of the upper end face StO in the intake 27 andin the compressor 25.
  • the discharge line 33 is formed by a tubular element 35, which is laid outside of the engine housing 17 along the upper end face StO.
  • An oil leakage gas mixture in a valve camshaft area VN-G which arises in a manner similar to the oil leakage gas mixture in the crank chamber 32, flows adjacent to the discharge line 33 or 35 opening into the oil pre-separator 29 via a first passage 36 between the cylinder head 23 and Oil pre-separator 29 in the latter a.
  • the ⁇ lvorabscheider 29 comprises upright to the water line Wl extending first and second guide chambers 37 and 38, between which a flat guide element 39 extends.
  • a second passage 40th is provided in the guide element 39 in the guide element 39.
  • the guide chambers 37 and 38 and the guide element 39 extend over a substantial length Lzy of the cylinder head 23, wherein the second passage 40 adjacent to the lower end face StU is incorporated into the guide element 39.
  • the oil-leak gas mixture in the first guide chamber 37 is guided from top to bottom between the upper end side StO and the lower end side StU along the guide element 39 and enters through the second passage 40 in the second guide chamber 38, via said oil Leakage gas mixture in the direction of the upper end face StO flows and from there with the interposition of a third passage 41 into the main oil separator 30 passes.
  • the extracted in this control of the oil-leakage gas mixture oil flows through a fourth passage 42 in the oil pan 34 back.
  • the oil pre-separator 29 and the oil main separator 30 are combined to form a housing structure 43, by which at least the main oil separator 30 is held in position on the cylinder head 23 by means of retaining screws 44 and 45.
  • the oil pre-separator 29 is in the embodiment - Fig. 4 - Made in one piece with the cylinder head 23. It is also conceivable, however, to design the oil pre-separator 29 separately from the cylinder head 23.
  • the ⁇ lvorabscheider 29 and the main oil separator 30 with the interposition of an annular spacer 46 at connection levels Ve1 and Ve2 is composed.
  • This component configuration enables a demand-based volume design -VI, VII and VII- of the oil pre-separator 29, the spacer 46 and the main oil separator 30 for a defined treatment of the oil-leakage gas mixture.
  • the oil pre-separator 29, the spacer body 46 and the oil main separator 30 are united via one or more connecting screws 47.
  • the connecting bolts 47 are effective adjacent to a peripheral zone 48 of the housing structure 43 approximately perpendicular to the connecting planes Ve1 and Ve2. Below the one or more of the connecting screws 47 extends an outer contour 49 of a Ansaugluftkanalhaube 50.
  • the ⁇ lhauptabscheider 30 is designed in the manner of a cover 51 of the housing structure 43 and the ⁇ lhauptabscheiders 30 which is introduced with a peripheral connecting edge 52 to the spacer body 46.
  • the oil main separator 30 is provided with a labyrinth 53- Fig. 3 and Fig. 6 , where the oil-leakage gas mixture is passed, whereby on the one hand, the leak gas to the intake 27 and on the other hand, the oil is led to the oil pan 34 out.
  • the labyrinth 53 is mounted on an inner side 54 of the lid 51 and is formed by spaced guide ribs 55, 56 and 57, 58 extending from opposite upright sides 59 and 60 transversely to a longitudinal direction Lr and at a defined angle of inclination.
  • the guide webs 55, 56 and 57, 58 alternately interlock, and may be curved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP15002144.2A 2014-07-30 2015-07-20 Dispositif d'aeration doté de séparateur d'huile Active EP2980374B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014011355.8A DE102014011355A1 (de) 2014-07-30 2014-07-30 Brennkraftmaschine der Hubkolbenbauart

Publications (2)

Publication Number Publication Date
EP2980374A1 true EP2980374A1 (fr) 2016-02-03
EP2980374B1 EP2980374B1 (fr) 2016-09-14

Family

ID=53835198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15002144.2A Active EP2980374B1 (fr) 2014-07-30 2015-07-20 Dispositif d'aeration doté de séparateur d'huile

Country Status (4)

Country Link
US (1) US9777625B2 (fr)
EP (1) EP2980374B1 (fr)
JP (1) JP6555962B2 (fr)
DE (1) DE102014011355A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9777625B2 (en) 2014-07-30 2017-10-03 Neander Motors Ag Reciprocating internal combustion engine
DE102016004766B3 (de) * 2016-04-20 2017-10-19 Neander Motors Ag Außenbordmotor, umfassend eine Brennkraftmaschine
EP3236046A1 (fr) 2016-04-20 2017-10-25 Neander Motors AG Moteur à combustion interne pour un moteur hors-bord
DE102016004776A1 (de) 2016-04-20 2017-10-26 Neander Motors Ag Gebläse für ein Luftführungssystem eines Außenbordmotors
EP3266525A1 (fr) * 2016-07-06 2018-01-10 Neander Motors AG Séparateur d'huile pour un moteur à combustion interne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017115682B3 (de) 2017-07-12 2018-10-31 Montaplast Gmbh Zylinderkopfölabscheider für einen Verbrennungsmotor (Strömungsgeführter Ölabscheider)
US10738670B2 (en) * 2018-10-11 2020-08-11 Kawasaki Jukogyo Kabushiki Kaisha Utility vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509439C2 (fr) 1984-03-15 1988-03-17 Honda Giken Kogyo K.K., Tokio/Tokyo, Jp
US5794602A (en) * 1995-08-30 1998-08-18 Sanshin Kogyo Kabushiki Kaisha Crankcase ventilating system
US6308695B1 (en) * 1998-08-26 2001-10-30 Sanshin Kogyo Kabushiki Kaisha Outboard motor engine layout
DE102006038831A1 (de) 2006-08-18 2008-02-21 Volkswagen Ag Brennkraftmaschine mit Rückführung von Blow-By-Gasen
DE102012015907B3 (de) 2012-08-10 2013-10-17 Neander Motors Ag Hubkolbenbrennkraftmaschine, umfassend zumindest einen Hubkolben

Family Cites Families (11)

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JPS5546703U (fr) * 1978-09-20 1980-03-27
JPH0729209Y2 (ja) * 1987-12-21 1995-07-05 富士重工業株式会社 バーチカルシャフトエンジンのブリーザ装置
US5501202A (en) * 1993-06-09 1996-03-26 Sanshin Industries Co., Ltd. Engine component layout for outboard motor
US5474035A (en) * 1994-07-08 1995-12-12 Outboard Marine Corporation Engine breather construction
JP3963292B2 (ja) * 1998-04-24 2007-08-22 ヤマハマリン株式会社 船外機用エンジン
JP4344579B2 (ja) * 2003-10-15 2009-10-14 株式会社マーレ フィルターシステムズ シリンダヘッドカバーのオイルセパレータ
JP2005120973A (ja) * 2003-10-20 2005-05-12 Kawasaki Heavy Ind Ltd 縦軸型エンジン
GB2428600A (en) * 2005-08-04 2007-02-07 Ec Power As A separating device
JP4890321B2 (ja) * 2007-03-30 2012-03-07 本田技研工業株式会社 バーチカル型エンジン
US8844506B2 (en) * 2012-05-17 2014-09-30 GM Global Technology Operations LLC Positive crankcase ventilation system
DE102014011355A1 (de) 2014-07-30 2016-02-04 Neander Motors Ag Brennkraftmaschine der Hubkolbenbauart

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509439C2 (fr) 1984-03-15 1988-03-17 Honda Giken Kogyo K.K., Tokio/Tokyo, Jp
US5794602A (en) * 1995-08-30 1998-08-18 Sanshin Kogyo Kabushiki Kaisha Crankcase ventilating system
US6308695B1 (en) * 1998-08-26 2001-10-30 Sanshin Kogyo Kabushiki Kaisha Outboard motor engine layout
DE102006038831A1 (de) 2006-08-18 2008-02-21 Volkswagen Ag Brennkraftmaschine mit Rückführung von Blow-By-Gasen
DE102012015907B3 (de) 2012-08-10 2013-10-17 Neander Motors Ag Hubkolbenbrennkraftmaschine, umfassend zumindest einen Hubkolben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAUS BRÜSTLE, A NEW CONCEPT FOR THE OUTBORD MARKET; SPEECH, 8 October 2013 (2013-10-08)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9777625B2 (en) 2014-07-30 2017-10-03 Neander Motors Ag Reciprocating internal combustion engine
DE102016004766B3 (de) * 2016-04-20 2017-10-19 Neander Motors Ag Außenbordmotor, umfassend eine Brennkraftmaschine
EP3236045A1 (fr) 2016-04-20 2017-10-25 Neander Motors AG Moteur hors-bord comprenant un moteur à combustion interne
EP3236046A1 (fr) 2016-04-20 2017-10-25 Neander Motors AG Moteur à combustion interne pour un moteur hors-bord
DE102016004776A1 (de) 2016-04-20 2017-10-26 Neander Motors Ag Gebläse für ein Luftführungssystem eines Außenbordmotors
DE102016004763A1 (de) 2016-04-20 2017-10-26 Neander Motors Ag Brennkraftmaschine für einen Außenbordmotor
EP3242038A1 (fr) 2016-04-20 2017-11-08 Neander Motors AG Ventilateur pour un système de refroidissement d'un moteur hors-bord
US10220927B2 (en) 2016-04-20 2019-03-05 Neander Motors Ag Outboard motor, comprising an internal combustion engine
US10273863B2 (en) 2016-04-20 2019-04-30 Neander Motors Ag Fan for an air-guiding system of an outboard motor
EP3266525A1 (fr) * 2016-07-06 2018-01-10 Neander Motors AG Séparateur d'huile pour un moteur à combustion interne

Also Published As

Publication number Publication date
EP2980374B1 (fr) 2016-09-14
US9777625B2 (en) 2017-10-03
US20160032819A1 (en) 2016-02-04
JP6555962B2 (ja) 2019-08-07
JP2016033371A (ja) 2016-03-10
DE102014011355A1 (de) 2016-02-04

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