DE3123080A1 - Cylinder liner for a reciprocating piston engine, especially an internal combustion engine - Google Patents

Cylinder liner for a reciprocating piston engine, especially an internal combustion engine

Info

Publication number
DE3123080A1
DE3123080A1 DE19813123080 DE3123080A DE3123080A1 DE 3123080 A1 DE3123080 A1 DE 3123080A1 DE 19813123080 DE19813123080 DE 19813123080 DE 3123080 A DE3123080 A DE 3123080A DE 3123080 A1 DE3123080 A1 DE 3123080A1
Authority
DE
Germany
Prior art keywords
piston
liner
cylinder liner
internal combustion
reciprocating piston
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.)
Ceased
Application number
DE19813123080
Other languages
German (de)
Inventor
Lutz-Uwe Dipl.-Ing. 7000 Stuttgart Bannasch
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19813123080 priority Critical patent/DE3123080A1/en
Publication of DE3123080A1 publication Critical patent/DE3123080A1/en
Ceased legal-status Critical Current

Links

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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F2001/006—Cylinders; Cylinder heads  having a ring at the inside of a liner or cylinder for preventing the deposit of carbon oil particles, e.g. oil scrapers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

In order to reduce the wear on cylinder barrels of reciprocating piston engines it is proposed to arrange a highly wear and corrosion resistant cylinder liner, designed with a very short overall height, in the upper cylinder area so that with the piston at top dead centre the bottom edge of the cylinder liner lies between the compression ring and the oil scraper ring arranged directly beneath.

Description

"Laufbüchse für eine Hubkolbenmaschine,"Liner for a reciprocating engine,

insbesondere Brennkraftmaschine" Die Erfindung bezieht sich auf eine Hubkolbenmaschine, insbesondere Brennkraftmaschine, mit einer im oberen Zylinderbereich in einer zylindrischen Ausnehmung eingesetzten Laufbüchse, in der bei oberer Totpunktlage des mit einem Kompressions- und Ölabstreifring versehenen Kolbens lediglich der obere Kolbenteil geführt ist. in particular internal combustion engine "The invention relates to a Reciprocating piston engine, in particular internal combustion engine, with one in the upper cylinder area Liner inserted in a cylindrical recess, in the top dead center position of the piston, which is provided with a compression and oil control ring, is only the upper piston part is guided.

Eine Laufbüchse dieser Art ist durch die DE-OS 1 576 714 bekannt. Ihre Höhe im Zylinder entspricht der Höhe der Kolbenringanordnung am Kolben. Die Laufbüchse ist vom Eühlwasser umspült, so daß in dem hochbeanspruchten Bereich eine wesentliche Temperaturabsenkung erreicht werden kann.A liner of this type is known from DE-OS 1,576,714. Their height in the cylinder corresponds to the height of the piston ring arrangement on the piston. the Liner is washed around by the Eühlwasser, so that in the highly stressed area a significant temperature reduction can be achieved.

Die der Erfindung zugrunde liegende Aufgabe besteht darin, bei Hubkolbenmaschinen mit Laufbüchsen, die nicht vom Kühlwasser benetzt werden, durch kostengünstige Maßnahmen eine Verminderung des Verschleißes an Zylinderlaufbahnen im Bereich des oberen Umkehrpunktes des Kompressionsringes zu erzielen.The object on which the invention is based is, in reciprocating piston engines with liners that are not wetted by the cooling water, through inexpensive measures a reduction of the wear on cylinder liners in the area of the upper reversal point to achieve the compression ring.

Zur Lösung dieser Aufgabe wird vorgeschlagen, daß die untere Kante der Laufbüchse bei oberer Totpunktlage des Kolbens zwischen dem Kompressionsring und dem benachbarten Ölabstreifring liegt.To solve this problem it is proposed that the lower edge the liner at top dead center position of the piston between the compression ring and the adjacent oil control ring.

Somit überstreichen der Ölabstreifring und das Kolbenhemd die Laufbüchse nicht, so daß auch Werkstoffe für die Büchse verwendet werden können, die nicht betriebssicher mit dem Kolbenhemd bzw. Ölring zusammenwirken.Thus, the oil control ring and the piston skirt paint over the liner not, so that materials can also be used for the sleeve that are not interact reliably with the piston skirt or oil ring.

Die in ihrer Höhe sehr kurz ausgebildete Laufbüchse besteht aus einem hochverschleiß- und korrosionsfesten Werkstoff, jedoch ist wegen der niederen Geschwindigkeit im OT-Bereich ein weniger gleitgeeigneter Werkstoff verwendbar.The liner, which is very short in height, consists of one highly wear-resistant and corrosion-resistant material, however, because of the low speed a material that is less suitable for sliding can be used in the TDC area.

Der Gegenstand der'Erfindung wird anhand eines in der Zeichnung veranschaulichten Ausführungsbeispieles näher erläutert.The subject of the invention is illustrated by means of one in the drawing Embodiment explained in more detail.

Der Zylinderblock einer Hubkolbenbrennkraftmaschine weist an jedem Zylinder l - ausgehend von einer durch den Zylinderblock und dem Zylinderkopf gebildeten Trennfläche 2 -eine zylindrische Ausnehmung 3 auf, in die eine in ihrer Höhe kurz ausgebildete, hochverschleiß- und korrosionsfeste Laufbüchse 4 eingesetzt ist, die im Innendurchmesser genau der Zylinderbohrung entspricht.The cylinder block of a reciprocating internal combustion engine has at each Cylinder l - starting from one formed by the cylinder block and the cylinder head Separation surface 2 -a cylindrical recess 3, in which one is short in height trained, highly wear-resistant and corrosion-resistant liner 4 is used, the corresponds exactly to the cylinder bore in the inner diameter.

Ein mit 5 bezeichneter Kolben taucht bei seiner Aufwärtsbewegung lediglich mit seinem Kompressionsring 6 in die Laufbüchse 4 ein. Der direkt unter dem Kompressionsring liegende Ölabstreifring 7 hat mit der Laufbüchse 4 bei oberer Totpunktlage des Kolbens keine Berührung. Die untere Kante 8 der Laufbüchse 4 liegt somit zwischen dem Kompressionsring 6 und dem Ölabstreifring 7.A piston labeled 5 only plunges during its upward movement with its compression ring 6 in the liner 4. The one directly under the compression ring lying oil control ring 7 has with the liner 4 at top dead center position of the piston no touch. The lower edge 8 of the liner 4 thus lies between the compression ring 6 and the oil control ring 7.

Bei der Anordnung von zwei oder mehreren Kompressionsringen stehen ebenfalls lediglich diese Ringe mit der Laufbüchse 4 in Kontakt.When arranging two or more compression rings stand likewise only these rings are in contact with the liner 4.

LeerseiteBlank page

Claims (1)

Anspruch Hubkolbenmaschine, insbesondere Brennkraftmaschine, mit einer im oberen Zylinderbereich in einer zylindrischen Ausnehmung eingesetzten Laufbüchse, in der bei oberer Totpunktlage des mit einem Kompressions- und Ölabstreifring versehenen Kolbens lediglich der obere Kolbenteil geführt ist, d a d u r c h g e k e n n z e i c h -n e t, daß die untere Kante der Laufbüchse (4) bei oberer Totpunktlage des Kolbens (5) zwischen dem Kompressionsring (6) und dem benachbarten Ölabstreifring (7) liegt.Claim reciprocating piston engine, in particular internal combustion engine, with a liner inserted in a cylindrical recess in the upper cylinder area, in the one with a compression and oil control ring at top dead center Piston only the upper part of the piston is guided, d u r c h g e k e n n z e i c h -n e t that the lower edge of the liner (4) at top dead center of the piston (5) between the compression ring (6) and the adjacent oil control ring (7) lies.
DE19813123080 1981-06-11 1981-06-11 Cylinder liner for a reciprocating piston engine, especially an internal combustion engine Ceased DE3123080A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813123080 DE3123080A1 (en) 1981-06-11 1981-06-11 Cylinder liner for a reciprocating piston engine, especially an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813123080 DE3123080A1 (en) 1981-06-11 1981-06-11 Cylinder liner for a reciprocating piston engine, especially an internal combustion engine

Publications (1)

Publication Number Publication Date
DE3123080A1 true DE3123080A1 (en) 1982-08-26

Family

ID=6134397

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813123080 Ceased DE3123080A1 (en) 1981-06-11 1981-06-11 Cylinder liner for a reciprocating piston engine, especially an internal combustion engine

Country Status (1)

Country Link
DE (1) DE3123080A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553585A (en) * 1994-05-27 1996-09-10 Wartsila Diesel International Ltd Oy Anti-polishing ring
EP3260692A1 (en) * 2016-06-23 2017-12-27 MAN Truck & Bus AG Combustion engine, in particular reciprocating piston combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553585A (en) * 1994-05-27 1996-09-10 Wartsila Diesel International Ltd Oy Anti-polishing ring
EP3260692A1 (en) * 2016-06-23 2017-12-27 MAN Truck & Bus AG Combustion engine, in particular reciprocating piston combustion engine
US10539092B2 (en) 2016-06-23 2020-01-21 Man Truck & Bus Ag Internal combustion engine, especially reciprocating internal combustion engine

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection