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EP0935061B1 - Stationary gas engine - Google Patents

Stationary gas engine Download PDF

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Publication number
EP0935061B1
EP0935061B1 EP98124381A EP98124381A EP0935061B1 EP 0935061 B1 EP0935061 B1 EP 0935061B1 EP 98124381 A EP98124381 A EP 98124381A EP 98124381 A EP98124381 A EP 98124381A EP 0935061 B1 EP0935061 B1 EP 0935061B1
Authority
EP
European Patent Office
Prior art keywords
cylinder liner
piston
annular flange
cylinder
outside
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.)
Revoked
Application number
EP98124381A
Other languages
German (de)
French (fr)
Other versions
EP0935061A3 (en
EP0935061A2 (en
Inventor
Werner Ing. Henkel
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
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=3484400&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0935061(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GE Jenbacher GmbH and Co OHG filed Critical GE Jenbacher GmbH and Co OHG
Publication of EP0935061A2 publication Critical patent/EP0935061A2/en
Publication of EP0935061A3 publication Critical patent/EP0935061A3/en
Application granted granted Critical
Publication of EP0935061B1 publication Critical patent/EP0935061B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
    • 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

Definitions

  • the invention relates to an internal combustion engine, in particular stationary gas engine, with a piston that runs in a cylinder liner, which inside the crankcase is arranged and which in the region of its upper, the cylinder head adjacent edge having an annular flange for support in the crankcase in the axial direction, with a on the outside of the cylinder liner extending coolant channel and with a the inside of the cylinder liner in the region of its upper edge arranged something over the inner surface of the cylinder liner projecting scraping ring for scraping the Outside of the piston in the area adjacent to the end face of the piston area.
  • An internal combustion engine of this kind is e.g. already known from CH 672 353.
  • the scraping ring of this Internal combustion engine prevents the deposition of combustion residues at the Outside of the piston in the area adjacent to the end face of the piston, which otherwise over time, in particular to impair the function of the piston rings being able to lead.
  • the object of the invention is to provide an internal combustion engine, in which the Operational reliability and service life over the known engines of this type is improved. This succeeds according to the invention having the features of the characterizing part of claim 1.
  • the invention consists in that in the problem according to the invention in first and foremost not a mechanical but a thermal problem. Due to thermal stresses, it can namely in the course of time to a delay or a loosening of the scraping ring come. To counter this, the provided measures according to the invention.
  • a piston 110 which in a Cylinder liner 101 is running.
  • the cylinder liner has in the area of its upper Cylinder head 102 adjacent edge 103 on an annular flange 104.
  • This ring flange 104 serves for the axial support of the cylinder liner on the piston housing 105, which over the cylinder head 102 is acted upon in the axial direction.
  • the cylinder head gasket 106 Between ring flange 104 of Cylinder liner 101 and cylinder head 102 is the cylinder head gasket 106 and in Cylinder head 102 is visible in this sectional view of one of the valves 107.
  • the Centering of the cylinder liner 101 in the crankcase 105 takes place in the area 108 briefly below the annular flange 104. Between crankcase 105 and cylinder liner 101 extends to this area 108, a cooling liquid passage 109th
  • FIG. 2 which also forms part of a longitudinal section through a cylinder of a larger engine, in particular a stationary gas engine, is now the Invention be explained.
  • valves are the (the prior art corresponding) valves in this Fig. Not visible.
  • the piston 10 is running in one Cylinder liner 1, which is disposed within the crankcase 5.
  • this is provided with an annular flange 4, via which it is supported in the axial direction in the crankcase 5 on a flange 11.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The engine has a cylinder liner with a coolant channel (9) on the outside, which extends to the ring flange (4). Cylinder liner (1) and scraper ring (13) are of the same material. The liner is centered in the crank casing (5) with the outside (12) of its ring flange. The piston (10) decreases in size in the section above the groove (17) for the upper cylinder ring.

Description

Die Erfindung betrifft einen Verbrennungsmotor, insbesondere stationärer Gasmotor, mit einem Kolben, der in einer Zylinderbüchse läuft, welche innerhalb des Kurbelgehäuses angeordnet ist und welche im Bereich ihres oberen, dem Zylinderkopf benachbarten Randes einen Ringflansch zur Abstützung im Kurbelgehäuse in axialer Richtung aufweist, mit einem auf der Außenseite der Zylinderbüchse verlaufenden Kühlflüssigkeitskanal und mit einem an der Innenseite der Zylinderbüchse im Bereich ihres oberen Randes angeordneten etwas über die Innenfläche der Zylinderbüchse vorspringenden Schabering zur Abschabung der Außenseite des Kolbens im an die Stirnfläche des Kolbens angrenzenden Bereich.The invention relates to an internal combustion engine, in particular stationary gas engine, with a piston that runs in a cylinder liner, which inside the crankcase is arranged and which in the region of its upper, the cylinder head adjacent edge having an annular flange for support in the crankcase in the axial direction, with a on the outside of the cylinder liner extending coolant channel and with a the inside of the cylinder liner in the region of its upper edge arranged something over the inner surface of the cylinder liner projecting scraping ring for scraping the Outside of the piston in the area adjacent to the end face of the piston area.

Ein Verbrennungsmotor dieser Art ist z.B. aus der CH 672 353 bereits bekannt. Der Schabering dieses Verbrennungsmotors verhindert, die Ablagerung von Verbrennungsrückständen an der Außenseite des Kolbens im an die Stirnfläche des Kolbens angrenzenden Bereich, welche anderenfalls im Laufe der Zeit insbesondere zur Beeinträchtigung der Funktion der Kolbenringe führen können.An internal combustion engine of this kind is e.g. already known from CH 672 353. The scraping ring of this Internal combustion engine prevents the deposition of combustion residues at the Outside of the piston in the area adjacent to the end face of the piston, which otherwise over time, in particular to impair the function of the piston rings being able to lead.

Aufgabe der Erfindung ist es, einen Verbrennungsmotor bereitzustellen, bei dem die Betriebszuverlässigkeit und Lebensdauer gegenüber den bekannten Motoren dieser Art verbessert wird. Erfindungsgemäß gelingt dies mit den Merkmalen des kennzeichwenden Teils des Anspruchs 1.The object of the invention is to provide an internal combustion engine, in which the Operational reliability and service life over the known engines of this type is improved. This succeeds according to the invention having the features of the characterizing part of claim 1.

Zur Lösung der erfindungsgemäßen Aufgabe würde es für einen Fachmann zunächst naheliegen, den Schabering aus einem möglichst harten Material herzustellen, welches sich somit vom Material der Zylinderbüchse unterscheiden wird. Der Grundgedanke der Erfindung besteht demgegenüber darin, daß es sich beim erfindungsgemäßen Problem in erster Linie nicht um ein mechanisches, sondern um ein thermisches Problem handelt. Durch thermische Spannungen kann es nämlich im Laufe der Zeit zu einem Verzug bzw. zu einer Lockerung des Schaberinges kommen. Um dem entgegenzuwirken, sind die erfindungsgemäßen Maßnahmen vorgesehen.To achieve the object of the invention, it would be for a person skilled in the first suggest to make the scraping of a hard as possible material, which is thus will differ from the material of the cylinder liner. The basic idea of In contrast, the invention consists in that in the problem according to the invention in first and foremost not a mechanical but a thermal problem. Due to thermal stresses, it can namely in the course of time to a delay or a loosening of the scraping ring come. To counter this, the provided measures according to the invention.

Obwohl stationäre Gasmotoren standardmäßig entsprechend der nachfolgend beschriebenen Fig. 1 konstruiert sind, sind aus der DE 34 13 971 A1 und der GB 1 478 379 A spezielle Motoren bekannt, bei denen der auf der Außenseite der Zylinderbüchse verlaufende Kühlfüssigkeitskanal ebenfalls bis zum Ringflansch der Zylinderbüchse geführt ist. Da diese Motoren keinen Schabering aufweisen, dient diese Maßnahme hier allerdings nicht zum gleichen Zweck wie bei der Erfindung, nämlich die thermischen Spannungen zwischen Schabering und Zylinderbüchse zu vermindern. Erst durch die Kombination dieses Merkmals mit dem Merkmal, daß der Schabering und die Zylinderbüchse aus dem gleichen Material bestehen, wird ein besonders betriebs- und ausfallsicherer Verbrennungsmotor mit Schabering bereitgestellt.Although stationary gas engines default according to the following 1, are disclosed in DE 34 13 971 A1 and GB 1 478 379 A special engines known where the on the outside of the cylinder liner running Kühlfüssigkeitskanal also led to the annular flange of the cylinder liner is. Since these motors have no scraping ring, this measure is used here, however not for the same purpose as in the invention, namely the thermal stresses between scraping ring and cylinder liner to reduce. Only through the combination of this Feature with the feature that the scraping ring and the cylinder liner of the same Material is a particularly operational and failsafe internal combustion engine with Schabering provided.

Weitere Vorteile und Einzelheiten der Erfindung werden im folgenden anhand der beiliegenden Zeichnung erläutert. In dieser zeigen

  • Fig. 1 einen Teil eines Längsschnittes in der Ebene der Ventile eines Zylinders eines stationären Gasmotors des Standes der Technik, und
  • Fig. 2 einen Teils eines Längsschnittes in einer Ebene, in der kein Ventil liegt, eines Zylinders eines erfindungsgemäßen Verbrennungsmotors.
    • Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show
  • Fig. 1 shows a part of a longitudinal section in the plane of the valves of a cylinder of a stationary gas engine of the prior art, and
  • Fig. 2 shows a part of a longitudinal section in a plane in which no valve is located, a cylinder of an internal combustion engine according to the invention.

    • Der in Fig. 1 gezeigte Ausschnitt eines Zylinders des Standes der Technik wie er bei stationären Gasmotoren verwendet wird, weist einen Kolben 110 auf, der in einer Zylinderbüchse 101 läuft. Die Zylinderbüchse weist im Bereich ihres oberen dem Zylinderkopf 102 benachbarten Randes 103 einen Ringflansch 104 auf. Dieser Ringflansch 104 dient zur axialen Abstützung der Zylinderbüchse am Kolbengehäuse 105, welche über den Zylinderkopf 102 in axialer Richtung beaufschlagt ist. Zwischen Ringflansch 104 der Zylinderbüchse 101 und Zylinderkopf 102 liegt die Zylinderkopfdichtung 106 und im Zylinderkopf 102 ist in dieser Schnittdarstellung eines der Ventile 107 sichtbar. Die Zentrierung der Zylinderbüchse 101 im Kurbelgehäuse 105 erfolgt im Bereich 108 kurz unterhalb des Ringflansches 104. Zwischen Kurbelgehäuse 105 und Zylinderbüchse 101 erstreckt sich bis zu diesem Bereich 108 ein Kühlflüssigkeitskanal 109.The detail shown in Fig. 1 of a cylinder of the prior art as in stationary gas engines is used, has a piston 110 which in a Cylinder liner 101 is running. The cylinder liner has in the area of its upper Cylinder head 102 adjacent edge 103 on an annular flange 104. This ring flange 104 serves for the axial support of the cylinder liner on the piston housing 105, which over the cylinder head 102 is acted upon in the axial direction. Between ring flange 104 of Cylinder liner 101 and cylinder head 102 is the cylinder head gasket 106 and in Cylinder head 102 is visible in this sectional view of one of the valves 107. The Centering of the cylinder liner 101 in the crankcase 105 takes place in the area 108 briefly below the annular flange 104. Between crankcase 105 and cylinder liner 101 extends to this area 108, a cooling liquid passage 109th

    Anhand der Fig. 2, welche ebenfalls einen Teil eines Längsschnittes durch einen Zylinder eines größeren Motors, insbesondere eines stationären Gasmotors, darstellt, soll nun die Erfindung erläutert werden. Da ein Schnitt quer zur Richtung der Verbindungslinie zwischen den im Zylinderkopf 2 angeordneten Ventilen dargestellt ist, sind die (dem Stand der Technik entsprechenden) Ventile in dieser Fig. nicht sichtbar. Wiederum läuft der Kolben 10 in einer Zylinderbüchse 1, welche innerhalb des Kurbelgehäuses 5 angeordnet ist. Im Bereich des oberen Randes 3 der Zylinderbüchse 1 ist diese mit einem Ringflansch 4 versehen, über welchen sie sich in axialer Richtung im Kurbelgehäuse 5 an einem Flansch 11 abstützt. In diese axiale Richtung wird die Zylinderbüchse 1 vom Zylinderkopf 2 beaufschlagt, wobei zwischen Zylinderkopf und Zylinderbüchse die Zylinderkopfdichtung 6 angeordnet ist. Die Zentrierung der Zylinderbüchse 1 im Kurbelgehäuse 5 erfolgt im Gegensatz zu dem in Fig. 1 gezeigten Zylinder des Standes der Technik an der Außenseite 12 des Ringflansches 4, der in einer entsprechenden Ausnehmung im Kurbelgehäuse 5 liegt. Der Kühlflüssigkeitskanal 9 reicht erfindungsgemäß bis zum Ringflansch 4 der Zylinderbüchse 1. Dadurch wird die Kühlung des oberen Bereiches der Zylinderbüchse wesentlich verbessert.With reference to FIG. 2, which also forms part of a longitudinal section through a cylinder of a larger engine, in particular a stationary gas engine, is now the Invention be explained. Because a cut across the direction of the connecting line between shown arranged in the cylinder head 2 valves are the (the prior art corresponding) valves in this Fig. Not visible. Again, the piston 10 is running in one Cylinder liner 1, which is disposed within the crankcase 5. In the area of upper edge 3 of the cylinder liner 1, this is provided with an annular flange 4, via which it is supported in the axial direction in the crankcase 5 on a flange 11. In this axial direction is applied to the cylinder liner 1 from the cylinder head 2, wherein between the cylinder head and cylinder liner, the cylinder head gasket 6 is arranged. The Centering of the cylinder liner 1 in the crankcase 5 takes place in contrast to that in FIG. 1 Cylinders of the prior art shown on the outer side 12 of the annular flange 4, the is located in a corresponding recess in the crankcase 5. The cooling liquid channel 9 extends according to the invention to the annular flange 4 of the cylinder liner 1. This is the Cooling of the upper portion of the cylinder liner significantly improved.

    In diesem oberen Bereich der Zylinderbüchse 1 ist ein an ihrer Innenseite angeordnete Schabering 13 vorgesehen, der etwas über die Innenfläche 14 der Zylinderbüchse 1 vorspringt. Dieser besteht aus dem gleichem Material wie die Zylinderbüchse, da andernfalls zu starke thermische Verspannungen zwischen Schabering 13 und Zylinderbüchse 1 auftreten würden. Damit der Rand der Stirnfläche 15 des Kolbens 10 bei dessen Aufwärtsbewegung nicht frontal auf die Unterkante des Schaberinges 13 aufprallen kann, verjüngt sich der Kolben 10 in seinem Bereich oberhalb der Nut 17, in der der oberste Kolbenring (nicht eingezeichnet) liegt. Durch den Schabering 13 wird eine Anlagerung von Verbrennungsrückständen an der Außenseite 16 des Kolbens 10 im an die Stirnfläche 15 angrenzenden Bereich verhindert. Durch die verbesserte Kühlung des oberen Bereiches der Zylinderbüchse 1, in welchem der Schabering 13 angeordnet ist, werden die thermischen Spannungen verringert und ein sicherer Sitz des Schaberinges 13 in der Zylinderbüchse 1 wird gewährleistet.In this upper portion of the cylinder liner 1 is arranged on its inside Schabering 13 is provided which projects slightly beyond the inner surface 14 of the cylinder liner 1. This consists of the same material as the cylinder liner, otherwise to strong thermal stresses between Schabering 13 and cylinder liner 1 occur would. So that the edge of the end face 15 of the piston 10 during its upward movement can not strike the front edge of the scraper ring 13, the tapered Piston 10 in its region above the groove 17, in which the uppermost piston ring (not located). By the scraping ring 13 is an accumulation of combustion residues on the outer side 16 of the piston 10 in adjacent to the end face 15 Area prevented. Due to the improved cooling of the upper area of the cylinder liner 1, in which the scraping ring 13 is arranged, the thermal Reduced voltages and a secure fit of the scraping ring 13 in the cylinder liner. 1 is guaranteed.

    Claims (3)

    1. Combustion engine, in particular stationary gas engine, with a piston (10) which runs in a cylinder liner (1) which is arranged inside the crankcase (5) and which has, in the area of its upper edge (3) adjacent to the cylinder head, in axial direction, an annular flange (4) for support in the crankcase (5), with a coolant channel (9) running on the outside of the cylinder liner and with a scraper ring (13), arranged on the inside of the cylinder liner in the area of its upper edge and projecting somewhat over the internal surface of the cylinder liner (1), for scraping the outside of the piston (10) in the area adjacent to the end surface of the piston, wherein the coolant channel (9) running on the outside of the cylinder liner is guided up to the annular flange (4), characterized in that the scraper ring (13), which is separated from the annular flange and which in the longitudinal direction of the cylinder liner (1) is broader than the annular flange (4), and the cylinder liner (1) consist of the same material.
    2. Combustion engine according to claim 1, characterized in that the cylinder liner (1) is centred at the outside (12) of its annular flange (4) in the crankcase (5).
    3. Combustion engine according to claim 1 or 2, characterized in that the piston (10) tapers in the area above the groove (17) for the uppermost piston ring.
    EP98124381A 1998-02-05 1998-12-22 Stationary gas engine Revoked EP0935061B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    AT20998 1998-02-05
    AT20998 1998-02-05

    Publications (3)

    Publication Number Publication Date
    EP0935061A2 EP0935061A2 (en) 1999-08-11
    EP0935061A3 EP0935061A3 (en) 2000-04-26
    EP0935061B1 true EP0935061B1 (en) 2004-02-25

    Family

    ID=3484400

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98124381A Revoked EP0935061B1 (en) 1998-02-05 1998-12-22 Stationary gas engine

    Country Status (4)

    Country Link
    EP (1) EP0935061B1 (en)
    AT (1) ATE260408T1 (en)
    DE (1) DE59810841D1 (en)
    ES (1) ES2215269T3 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2015026282A1 (en) * 2013-08-21 2015-02-26 Scania Cv Ab Cylinder lining and engine with such cylinder lining

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPWO2005045222A1 (en) * 2003-10-16 2008-03-06 株式会社リケン Internal combustion engine and liner mounting ring
    CN105020024A (en) * 2015-07-31 2015-11-04 广西玉柴机器股份有限公司 Air cylinder liner insert ring of diesel engine
    CN109751113A (en) * 2018-12-28 2019-05-14 国营第六一六厂 A kind of burning chamber of diesel engine and the method for improving burning chamber of diesel engine carbon distribution

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2624328A (en) * 1949-10-21 1953-01-06 Standard Motor Co Ltd Internal-combustion engine
    DE1902502B1 (en) * 1969-01-18 1970-11-12 Mahle Kg Cylinder or cylinder liner for reciprocating internal combustion engines
    DE2359427C2 (en) 1973-11-29 1982-04-22 Goetze Ag, 5093 Burscheid Storage of a cylinder liner
    DE3413971A1 (en) 1984-04-13 1985-10-17 Klöckner-Humboldt-Deutz AG, 5000 Köln Liquid-cooled internal combustion engine
    DE3530875A1 (en) * 1985-08-29 1987-03-05 Mak Maschinenbau Krupp Internal combustion engine with cylinder liner spacer
    CH672353A5 (en) * 1987-05-14 1989-11-15 Sulzer Ag Cylinder lining for IC engine - has cylinder wall shoulder, protruding into combustion chamber above top piston ring level
    DK174074B1 (en) * 1995-07-07 2002-05-21 Man B & W Diesel As Combustion engine with a coke scraping ring in a cylinder

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2015026282A1 (en) * 2013-08-21 2015-02-26 Scania Cv Ab Cylinder lining and engine with such cylinder lining

    Also Published As

    Publication number Publication date
    EP0935061A3 (en) 2000-04-26
    EP0935061A2 (en) 1999-08-11
    ATE260408T1 (en) 2004-03-15
    ES2215269T3 (en) 2004-10-01
    DE59810841D1 (en) 2004-04-01

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