EP0140108A1 - Moteur à piston alternatif à combustion interne - Google Patents

Moteur à piston alternatif à combustion interne Download PDF

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Publication number
EP0140108A1
EP0140108A1 EP84110986A EP84110986A EP0140108A1 EP 0140108 A1 EP0140108 A1 EP 0140108A1 EP 84110986 A EP84110986 A EP 84110986A EP 84110986 A EP84110986 A EP 84110986A EP 0140108 A1 EP0140108 A1 EP 0140108A1
Authority
EP
European Patent Office
Prior art keywords
insert
oil
crankshaft
rotation
oil pan
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
EP84110986A
Other languages
German (de)
English (en)
Other versions
EP0140108B1 (fr
Inventor
Armin Bauder
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.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6209637&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0140108(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Publication of EP0140108A1 publication Critical patent/EP0140108A1/fr
Application granted granted Critical
Publication of EP0140108B1 publication Critical patent/EP0140108B1/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
    • 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

Definitions

  • the invention relates to a reciprocating piston internal combustion engine according to the preamble of claim 1.
  • the insert extends at a short distance from the movement path of the connecting rods from one longitudinal edge of the lower opening of the cylinder crankcase to the other longitudinal edge, and it is provided with openings near these two longitudinal edges which is to drain the oil entrained by the rotating parts of the crankshaft down into the space between the insert and the oil pan.
  • the insert is adapted to the movement path of the connecting rods, due to the position of the openings in the upper region of the insert, oil can accumulate in the lower region into which the connecting rod heads are immersed, so that oil flange losses occur despite the use.
  • the insert known from DE-OS 19 48 186 cannot prevent this displacement of the oil, since the dynamic pressure through the openings on one side of the insert can act on the oil in the oil pan underneath and also in the area of the openings on the other side a swirl is generated by the use of the air vortex, which supports the passage of oil from these openings into the range of motion of the connecting rod heads and crank arms.
  • the invention has for its object to reduce the immersion of the connecting rod heads and the crank arms in the oil and the resulting power loss to a minimum with little effort in a reciprocating internal combustion engine of the type specified.
  • the insert extends without interruption from that longitudinal edge of the lower opening of the cylinder crankcase, which lies behind the plane containing the cylinder center axes in the direction of rotation of the crankshaft, essentially up to this plane, in the opposite direction of rotation, and that in the separates said rotation lagging region of the oil pan from the interior of the cylinder crankcase.
  • the proposal according to the invention prevents the oil in the oil pan from being displaced into the area of the connecting rod heads and crank webs by the dynamic pressure generated by the air vortex mentioned above.
  • the insert preferably extends only substantially to the plane containing the cylinder central axes, its free longitudinal edge being above the oil level in the oil pan.
  • the insert is provided with depressions, the side walls of which extend close to the running circles of the adjacent crank webs and the deepest point of which lies on the free longitudinal edge of the insert.
  • the insert In order to ensure that there is always a distance between the free longitudinal edge of the insert and the oil level which occurs during operation, which prevents oil from entering the oil pan into the insert at least largely prevented, it is advisable to adapt the insert, at least in its rear area in the direction of rotation, to the cross-section of the movement paths of the crank cheeks and the connecting rod heads, i.e. to form it approximately in a quarter circle, so that the oil displaced during acceleration, when driving uphill and due to the air movement in the crankcase behind or can rise under the insert and the oil level lowers in the area of the free longitudinal edge of the insert.
  • the insert can also extend from one longitudinal edge of the lower opening to the other, openings in the area between the longitudinal edge of the lower opening of the cylinder crankcase lagging in relation to the direction of rotation of the crankshaft and the plane containing the cylinder central axes the outflow of the oil from the crankshaft bearings into the underlying oil pan are provided.
  • Fig. 1, 1 denotes a cylinder crankcase, which has a plurality of cylinder bores 2 and in which a crankshaft 3 is mounted via bearings 4.
  • the crankshaft 3 is composed of the base bearing journals 5 mounted in the bearings 4, the connecting rod bearing journals 6 arranged between adjacent base bearing journals 5 and the crank cheeks 7 designed as balancing weights and connecting the connecting rod bearing journals 6 with the base bearing journals 5.
  • the number of connecting rod bearing journals 6 corresponds to the number of cylinder bores 2, and each connecting rod bearing journal 6 is connected by means of a connecting rod 8 to a reciprocating piston 9 arranged in the associated cylinder bore 2.
  • the cylinder crankcase 1 is too open at the bottom and its lower opening 10 is closed by a flanged oil pan 11.
  • a suction basket 12 of a lubricating oil pump is arranged in the oil pan in the usual way.
  • an insert 13 is arranged which extends essentially over the entire length of the lower opening 10 of the cylinder crankcase 1 and, as can be seen in particular from FIGS. 3 and 4, from the plane 14 in which the cylinder central axes lie, extends in the direction of rotation D of the crankshaft 3 up to the relevant longitudinal edge 15 of the lower opening 10 of the cylinder crankcase 1.
  • the insert 13 is provided with depressions 16, the side walls 17 of which extend close to the running circles 18 of the crank webs 7 and run parallel to these, as can be seen from FIG. 3.
  • the deepest point 19 of each recess lies on the free longitudinal edge 20 of the insert 13.
  • the insert 13 is narrow in its rear region in the direction of rotation D, adapted to the raceway 21 (connecting rod violin) of the connecting rods 8 or connecting rod heads 8a, as can be seen in particular from FIG. 4.
  • the free edge 20 of the insert 13 lies in the region of the pockets 22 at such a distance from the oil level 23 that normally no oil can get into the pockets 22 from the oil pan 11, but as deeply as possible so that little oil can collect in the pockets 22.
  • a drain hole can be provided at the deepest point of each pocket 22.
  • the insert 13 prevents the oil that is caught by the rotational movement of the crankshaft 3 from the oil pan 11 in the direction of rotation D of the crank Wave ver in the Fig. 3 and 4 right part of the oil pan 11 drärigt. Without the insert 13, the oil level 24 shown in broken lines in FIG. 4 would occur, at which, as can be seen, at least the connecting rod heads 8a would be immersed in the oil. This is effectively avoided by insert 13.
  • the insert 13 By adapting the insert 13 to the raceways 18 and 21 of the crank webs 7 and the connecting rods 8 and connecting rod heads 8a in the rear area in the direction of rotation D, the oil displaced by the aforementioned air movement can rise under the insert 13, with which the oil level in the The area of the free edge 20 of the insert 13 is lowered and the security against oil entering the pockets 22 is increased, especially since the aim is to pull the free edge 20 in the area of the pockets 22 as deep as possible in order to increase the oil level in the pockets 22 to keep low.
  • the insert 13 also prevents the oil from getting into the range of motion of the connecting rods or connecting rod heads of the rear cylinders in the direction of travel when negotiating inclines and accelerating.
  • the insert 13 can consist of sheet metal or plastic and is screwed onto the underside of the cylinder crankcase 1 by means of screws 25.
  • FIG. 2 differs from that of FIG. 2 essentially only in that the insert 13a extends from one longitudinal edge 15a to the other longitudinal edge 30 of the lower opening 10a of the cylinder crankcase la and in the area between the trailing longitudinal edge 30 and the plane 14a containing the cylinder central axes is provided with openings 32 for the outflow of the oil from the crankshaft bearings 4a into the underlying oil pan.
  • the webs 31 thus formed stiffen the longitudinal edge 19a and prevent the same from swinging during operation.
  • the webs 31 are preferably arranged in the plane of the crankshaft bearings 4a, but are considerably narrower than this, so that the outflow of the oil from these bearings is not hindered by the webs 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP84110986A 1983-09-21 1984-09-14 Moteur à piston alternatif à combustion interne Expired EP0140108B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334044A DE3334044C2 (de) 1983-09-21 1983-09-21 Hubkolben-Brennkraftmaschine
DE3334044 1983-09-21

Publications (2)

Publication Number Publication Date
EP0140108A1 true EP0140108A1 (fr) 1985-05-08
EP0140108B1 EP0140108B1 (fr) 1987-03-04

Family

ID=6209637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110986A Expired EP0140108B1 (fr) 1983-09-21 1984-09-14 Moteur à piston alternatif à combustion interne

Country Status (4)

Country Link
US (1) US4524735A (fr)
EP (1) EP0140108B1 (fr)
JP (1) JPS60145447A (fr)
DE (2) DE3334044C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925411A1 (de) * 1989-08-01 1991-02-07 Man Nutzfahrzeuge Ag Antriebseinrichtung eines fahrzeuges
DE4139195A1 (de) * 1991-11-28 1993-06-03 Audi Ag Oelwannen-einsatz
US10502105B2 (en) 2015-06-20 2019-12-10 Man Truck & Bus Ag Dividing wall structure with integrated liquid delivery function

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320803Y2 (fr) * 1984-10-05 1988-06-09
DE3444838C2 (de) * 1984-12-08 1986-10-30 Bayerische Motoren Werke AG, 8000 München Gehäuse für Hubkolben-Brennkraftmaschine, insbesondere Motorblock
US4674457A (en) * 1986-06-02 1987-06-23 Ford Motor Company Dry sump crankcase
JPH0623704Y2 (ja) * 1987-04-14 1994-06-22 本田技研工業株式会社 エンジンのオイルパンにおけるオイルミスト抑制構造
JPH0623699Y2 (ja) * 1987-12-21 1994-06-22 ダイハツ工業株式会社 エンジンのオイルパン
JPH026222A (ja) * 1988-06-24 1990-01-10 Honda Motor Co Ltd 車両の駆動装置
US5190121A (en) * 1991-10-31 1993-03-02 General Motors Corporation Two phase compressor lubrication
JPH08353U (ja) * 1992-06-11 1996-02-20 岳英 山下 集積回路板等の整理箱
GB9717593D0 (en) 1997-08-19 1997-10-22 Perkins Ltd An internal combustion engine having an increased lubricating oil capacity and/or an increased gradiability
FR2779478B1 (fr) * 1998-06-08 2000-12-15 Renault Vehicules Ind Reservoir d'huile pour groupe-moteur d'un vehicule automobile
US6810849B1 (en) * 1999-01-25 2004-11-02 Briggs & Stratton Corporation Four-stroke internal combustion engine
JP2004353506A (ja) * 2003-05-28 2004-12-16 Petroliam Nasional Bhd エンジンにおけるオイルパン構造
DE102008038878B4 (de) 2008-08-08 2011-03-17 Joma-Polytec Gmbh Ölabscheideeinsatz und Kurbelgehäuse-Ölwannen-Einheit einer Brennkraftmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716430A (fr) * 1930-05-26 1931-12-21 Ford Motor Co Appareil de graissage perfectionné pour moteurs
US1871760A (en) * 1928-03-21 1932-08-16 Gen Motors Corp Lubricating system
US2480486A (en) * 1948-06-14 1949-08-30 Shelley J Leazer Replacement screen for oil pans
US3106263A (en) * 1961-07-11 1963-10-08 Gen Motors Corp Engine with side reservoir oil pan
DE1948186A1 (de) * 1969-09-24 1971-04-01 Daimler Benz Ag Kolbenbrennkraftmaschine
EP0067639A2 (fr) * 1981-06-11 1982-12-22 Gkn Axles Limited Essieux

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7410989U (de) * 1975-07-10 Interatom Internationale Atomreakto Rohr mit ausschwenkbarem dichten Kugelmuffenverbindeelementensatz
US1569404A (en) * 1923-02-09 1926-01-12 Smith Clair Oil regulator for gas engines
US2093570A (en) * 1931-06-01 1937-09-21 Continental Motors Corp Engine
US3354988A (en) * 1965-09-17 1967-11-28 Gen Motors Corp Engine with baffled oil pan
JPS5833206Y2 (ja) * 1975-02-05 1983-07-25 川崎重工業株式会社 ナイネンキカンノクランクケ−ス
US4270497A (en) * 1979-08-22 1981-06-02 Valerio Robert M Oil pan for internal combustion engines
JPS5888416A (ja) * 1981-11-21 1983-05-26 Yamaha Motor Co Ltd ウエツトサンプ式エンジン

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871760A (en) * 1928-03-21 1932-08-16 Gen Motors Corp Lubricating system
FR716430A (fr) * 1930-05-26 1931-12-21 Ford Motor Co Appareil de graissage perfectionné pour moteurs
US2480486A (en) * 1948-06-14 1949-08-30 Shelley J Leazer Replacement screen for oil pans
US3106263A (en) * 1961-07-11 1963-10-08 Gen Motors Corp Engine with side reservoir oil pan
DE1948186A1 (de) * 1969-09-24 1971-04-01 Daimler Benz Ag Kolbenbrennkraftmaschine
EP0067639A2 (fr) * 1981-06-11 1982-12-22 Gkn Axles Limited Essieux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 105, 8th July 1981, page (M77) (777); & JP-A-56-47611 (YAMAHA) 30-04-1981 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925411A1 (de) * 1989-08-01 1991-02-07 Man Nutzfahrzeuge Ag Antriebseinrichtung eines fahrzeuges
DE4139195A1 (de) * 1991-11-28 1993-06-03 Audi Ag Oelwannen-einsatz
DE4139195C2 (de) * 1991-11-28 1999-05-27 Audi Ag Ölwannen-Einsatz
US10502105B2 (en) 2015-06-20 2019-12-10 Man Truck & Bus Ag Dividing wall structure with integrated liquid delivery function
EP3106635B1 (fr) * 2015-06-20 2020-09-09 MAN Truck & Bus SE Construction de cloison dotee d'une fonction de transport de liquide integree

Also Published As

Publication number Publication date
US4524735A (en) 1985-06-25
JPS6334312B2 (fr) 1988-07-08
DE3334044A1 (de) 1985-03-28
JPS60145447A (ja) 1985-07-31
DE3462538D1 (en) 1987-04-09
EP0140108B1 (fr) 1987-03-04
DE3334044C2 (de) 1985-11-07

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