EP0497753B1 - Internal combustion engine with low sound level - Google Patents

Internal combustion engine with low sound level Download PDF

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Publication number
EP0497753B1
EP0497753B1 EP19920890016 EP92890016A EP0497753B1 EP 0497753 B1 EP0497753 B1 EP 0497753B1 EP 19920890016 EP19920890016 EP 19920890016 EP 92890016 A EP92890016 A EP 92890016A EP 0497753 B1 EP0497753 B1 EP 0497753B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
sound level
low sound
lead frame
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 - Lifetime
Application number
EP19920890016
Other languages
German (de)
French (fr)
Other versions
EP0497753A1 (en
Inventor
Andreas Bilek
Wolfgang Dipl.-Ing. Schöffmann
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.)
AVL List GmbH
Original Assignee
AVL List GmbH
AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH
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 AVL List GmbH, AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH filed Critical AVL List GmbH
Publication of EP0497753A1 publication Critical patent/EP0497753A1/en
Application granted granted Critical
Publication of EP0497753B1 publication Critical patent/EP0497753B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/008—Sound insulation
    • 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
    • F01M11/0004—Oilsumps
    • F01M2011/0029—Oilsumps with oil filters

Definitions

  • the invention relates to a low-noise internal combustion engine with a rigid lead frame produced as a cast part.
  • lead frames can be designed as plates or cast structures.
  • a disadvantage when screwing onto the crankcase is the space requirement and the additional machining of the threaded holes on the crankcase lower flange.
  • FIG. 1 shows an embodiment of the oil pan and lead frame according to the invention in plan view
  • FIG. 2 shows a section along the line II-II in FIG. 1
  • FIG. 3 shows a section along the line III-III in FIG. 1
  • FIG. 4 a section along the line IV-IV 1 and 5 a section along the line VV in FIG. 1st
  • the lead frame 1 is screwed into the oil pan 2 with screws 4.
  • the parting line between lead frame 1 and oil pan 2 is designated 1 '.
  • the oil pan 2 is in turn fastened with screws 2 'to the lower flange of the crankcase 3.
  • the oil suction line can be integrated into the lead frame 1 by a horizontal pulling part 5 and a vertical pulling part 6 forming the oil suction line, which are then connected to the oil pump flange 8 by a pipe 7.
  • "Baffle plates" 9 and an oil plane 10 can also be formed.
  • both the oil pan and the lead frame are advantageously embodied as a printable construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

Die Erfindung bezieht sich auf eine geräuscharme Brennkraftmaschine mit einem steifen als Gußteil hergestellten Leiterrahmen.The invention relates to a low-noise internal combustion engine with a rigid lead frame produced as a cast part.

Es ist bekannt, die Unterteile von Kurbelgehäusen von Brennkraftmaschinen zur Verminderung der Schallabstrahlung mit einer leiterrahmenähnlichen Konstruktion zu versteifen. Diese sogenannten Leiterrahmen können als Platten oder Gußkonstruktionen ausgeführt sein.It is known to stiffen the lower parts of crankcases of internal combustion engines to reduce the sound radiation with a construction similar to a lead frame. These so-called lead frames can be designed as plates or cast structures.

Aus der GB-PS 2 164 389 ist ein steifer Leiterrahmen für eine Brennkraftmaschine bekannt, welcher entweder von unten an das Kurbelgehäuse geschraubt ist oder in der Ölwanne als integrierter Teil eingegossen ist.From GB-PS 2 164 389 a rigid lead frame for an internal combustion engine is known, which is either screwed to the crankcase from below or is cast in the oil pan as an integrated part.

Nachteilig beim Anschrauben an das Kurbelgehäuse sind der Platzbedarf und die zusätzliche Bearbeitung der Gewindebohrungen am Kurbelgehäuse-Unter-Flansch.A disadvantage when screwing onto the crankcase is the space requirement and the additional machining of the threaded holes on the crankcase lower flange.

Der Nachteil bei einem in die Ölwanne integrierten Leiterrahmen ist der komplizierte Kern, der bei einer Druckgußfertigung nicht angewendet werden kann, die aber für hohe Stückzahlen eine Voraussetzung darstellt. Solche Ölwannen sind an sich sehr steif, haben aber eine geringe innere Materialdämpfung.The disadvantage of a ladder frame integrated in the oil pan is the complicated core, which cannot be used in a die-cast production, but which is a requirement for large quantities. Such oil pans are very stiff in themselves, but have a low internal material damping.

Nach der Erfindung sind diese Nachteile dadurch vermieden, daß der Leiterrahmen in die Ölwanne von der Flanschseite her eingesetzt und eingeschraubt ist. Damit ist eine Druckgußtechnologie sowohl auf die Ölwanne als auch auf den Leiterrahmen anwendbar. Weiters erreicht man durch die zusätzliche Trennfuge in der Ölwanne eine Erhöhung der gesamten Ölwannendämpfung.According to the invention, these disadvantages are avoided in that the lead frame is inserted and screwed into the oil pan from the flange side. This means that die-casting technology can be applied to both the oil pan and the lead frame. Furthermore, the additional joint in the oil pan increases the overall oil pan damping.

Die Erfindung wird anhand eines Beispieles näher beschrieben. Es zeigen Fig. 1 eine erfindungsgemäße Ausführung von Ölwanne und Leiterrahmen in Draufsicht, Fig. 2 einen Schnitt nach der Linie II-II in Fig. 1, Fig. 3 einen Schnitt nach der Linie III-III in Fig. 1, Fig. 4 einen Schnitt nach der Linie IV-IV in Fig. 1 und Fig. 5 einen Schnitt nach der Linie V-V in Fig. 1.The invention is described in more detail using an example. 1 shows an embodiment of the oil pan and lead frame according to the invention in plan view, FIG. 2 shows a section along the line II-II in FIG. 1, FIG. 3 shows a section along the line III-III in FIG. 1, FIG. 4 a section along the line IV-IV 1 and 5 a section along the line VV in FIG. 1st

Der Leiterrahmen 1 ist mit Schrauben 4 in die Ölwanne 2 eingeschraubt. Die Trennfuge zwischen Leiterrahmen 1 und Ölwanne 2 ist mit 1′ bezeichnet. Die Ölwanne 2 ist ihrerseits mit Schrauben 2′ am Unterflansch des Kurbelgehäuses 3 befestigt. In weiterer vorteilhafter Ausführung kann die Ölansaugleitung in den Leiterrahmen 1 integriert werden, indem ein horizontaler Ziehteil 5 und ein vertikaler Ziehteil 6 die Ölansaugleitung bilden, die dann mit einem Rohr 7 mit dem Ölpumpenflansch 8 verbunden sind. "Schwallbleche" 9 sowie ein Ölhobel 10 können mit ausgebildet sein.The lead frame 1 is screwed into the oil pan 2 with screws 4. The parting line between lead frame 1 and oil pan 2 is designated 1 '. The oil pan 2 is in turn fastened with screws 2 'to the lower flange of the crankcase 3. In a further advantageous embodiment, the oil suction line can be integrated into the lead frame 1 by a horizontal pulling part 5 and a vertical pulling part 6 forming the oil suction line, which are then connected to the oil pump flange 8 by a pipe 7. "Baffle plates" 9 and an oil plane 10 can also be formed.

Vorteilhaft wird in weiterer Ausgestaltung der Erfindung sowohl die Ölwanne als auch der Leiterrahmen als druckgutfähige Konstruktion ausgeführt.In a further embodiment of the invention, both the oil pan and the lead frame are advantageously embodied as a printable construction.

Claims (1)

  1. Low noise-level internal combustion engine with a stiff ladder frame manufactured as a pressure die-casting, characterised in that the ladder frame (1) is inserted and bolted into the oil sump (2) from its flanged face.
EP19920890016 1991-01-30 1992-01-20 Internal combustion engine with low sound level Expired - Lifetime EP0497753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0020391A AT399542B (en) 1991-01-30 1991-01-30 QUIET INTERNAL COMBUSTION ENGINE
AT203/91 1991-01-30

Publications (2)

Publication Number Publication Date
EP0497753A1 EP0497753A1 (en) 1992-08-05
EP0497753B1 true EP0497753B1 (en) 1994-08-03

Family

ID=3484224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920890016 Expired - Lifetime EP0497753B1 (en) 1991-01-30 1992-01-20 Internal combustion engine with low sound level

Country Status (4)

Country Link
EP (1) EP0497753B1 (en)
AT (1) AT399542B (en)
DE (1) DE59200331D1 (en)
ES (1) ES2033216T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404165B (en) * 1994-01-14 1998-09-25 Steyr Nutzfahrzeuge CRANKCASE FOR INTERNAL COMBUSTION ENGINES

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972752A (en) * 1930-11-22 1934-09-04 Hercules Motors Corp Internal combustion engine and structure therefor
JPS52143321A (en) * 1976-05-25 1977-11-29 Nissan Diesel Motor Co Ltd Engine body of internal combustion engine
DE3024630C2 (en) * 1980-06-30 1984-06-14 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Housing part of internal combustion engines such as oil pan or the like.
AT394759B (en) * 1983-09-19 1992-06-25 Avl Verbrennungskraft Messtech INTERNAL COMBUSTION ENGINE WITH LIQUID COOLING
IT1185670B (en) * 1984-09-11 1987-11-12 Maschf Augsburg Nuernberg Ag BASE FOR MULTI-CYLINDER PISTON MACHINES
CA1328588C (en) * 1987-05-15 1994-04-19 Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co., Ltd .) Internal combustion engine
US4771747A (en) * 1987-12-17 1988-09-20 Caterpillar Inc. Internal combustion engine noise reduction plate

Also Published As

Publication number Publication date
EP0497753A1 (en) 1992-08-05
ES2033216T3 (en) 1994-10-16
ATA20391A (en) 1994-10-15
DE59200331D1 (en) 1994-09-08
AT399542B (en) 1995-05-26
ES2033216T1 (en) 1993-03-16

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