EP0602321A1 - Cooling device for combustion chamber opening or cylinder liner head - Google Patents

Cooling device for combustion chamber opening or cylinder liner head Download PDF

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Publication number
EP0602321A1
EP0602321A1 EP93113969A EP93113969A EP0602321A1 EP 0602321 A1 EP0602321 A1 EP 0602321A1 EP 93113969 A EP93113969 A EP 93113969A EP 93113969 A EP93113969 A EP 93113969A EP 0602321 A1 EP0602321 A1 EP 0602321A1
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EP
European Patent Office
Prior art keywords
channels
cooling water
ring
cooling device
combustion chamber
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
EP93113969A
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German (de)
French (fr)
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EP0602321B1 (en
Inventor
Hans-Jürgen Schacht
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.)
Caterpillar Motoren GmbH and Co KG
Original Assignee
Krupp Mak Maschinenbau GmbH
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Publication of EP0602321A1 publication Critical patent/EP0602321A1/en
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Publication of EP0602321B1 publication Critical patent/EP0602321B1/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
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to a cooling device for the flame ring of a reciprocating diesel internal combustion engine, the flame ring being surrounded by a cooling water ring, the cooling device being provided directly in the flame ring and having water ducts and water inlet openings which comprise separate channels.
  • the object of the invention is to provide a cooling device which can be produced in a simple manner in the head of the liner or in the flame ring and a continuous cooling water flow or exchange from one annular chamber to another annular chamber in order to achieve optimum cooling of the liner and / or the flame ring guaranteed.
  • the channels each have a tangential course to the inner bore of the flame ring, and that between the cooling water ring and the flame ring are provided with a narrow annular gap, one above the other, connecting the cooling water ring channels.
  • the main advantages achieved by the invention are that with an arrangement of the cooling device, which consists of several water-carrying through channels, which are arranged tangent to the inner bore of the liner or the flame ring, a continuous flow of cooling water is ensured.
  • the arrangement of the channels is selected so that the entire ring area is interspersed with channels and thus the hottest areas of the liner or the flame ring or the inner bore can be cooled uniformly.
  • the channels are preferably placed in inclined planes in such a way that a cooling water connection from a lower cooling water annulus to a further cooling water annulus arranged above them can take place through straight-line channels produced as bores.
  • a narrow gap connecting the two superimposed cooling water annular spaces is provided between the flame ring or the bushing and a surrounding cooling water bushing.
  • the sloping channels in the liner or in the flame ring are arranged separately from each other, so that separate cooling water flows can be transported from one annulus to the other annulus and thus optimal cooling is achieved.
  • a flame ring 3 is arranged in a diesel engine between the cylinder head 1 and a liner 2, which is enclosed by a cooling water ring 4.
  • This surrounds a cooling water space, consisting of a lower cooling water ring space 5 and a further cooling water ring space 6 arranged above.
  • These two spaces 5 and 6 are connected to one another via an annular gap 7, which is either between the flame ring 3 and the cooling water ring 4 or at a version without flame ring 3 between the head 2a of the liner 2 and the ring 4.
  • the cooling device can be provided in the head 2a of the liner 2 or when arranged with a flame ring 3 therein.
  • Connection channel 8 may be provided. This has a lower inlet opening 9 and an upper outlet opening 10. As a result, cooling water from the lower annular space 5 to the upper annular space 6 flows optimally through the edge zone of the flame ring 2 or the head 2a of the liner 2a.
  • a plurality of channels 11 to 18 can be arranged in the flame ring 3 or in the head 2a of the liner 2. These channels are each tangential and close to the inner bore. They surround the inner bore 20 or 21 in such a way that - viewed in plan view - four channels 11 to 14 each form a square formation and a further four channels 11 to 14 are arranged offset, an optimal arrangement of the offset at an angle of approximately 45 o is done. However, an offset at a different angle is also conceivable.
  • the channels 11 to 18 are all set apart and obliquely and each have an inlet opening 9 to the annular space 5 and an outlet opening 10 in the upper annular space 6.

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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)

Abstract

In a cooling device for cylinder liners and/or combustion chamber openings of an internal combustion engine, especially a diesel engine, the cylinder liner and the combustion chamber opening (3) are surrounded by a cooling water ring. The cooling device is provided in the head of the cylinder liner (2) and/or in the combustion chamber opening (3). It comprises a plurality of lower water inlet openings (9) and upper water outlet openings (10), which are connected to one another by way of separate channels (11-18). The said channels (11-18) are arranged tangentially to the internal bore (20) of the cylinder liner or the combustion chamber opening (20) respectively. Cooling water ring channels, which are connected to one another by an annular gap (7), are enclosed by the cooling water ring opposite the cylinder liner and the combustion chamber opening. The cooling water inlet opening is connected to the lower cooling water ring channel and the cooling water outlet opening to the upper cooling water ring channel. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Kühleinrichtung für den Flammring einer Hubkolben-Diesel-Brennkraftmaschine, wobei der Flammring von einem Kühlwasserring umgeben ist, wobei die Kühleinrichtung direkt im Flammring vorgesehen ist und Wasserauslaß- und Wassereinlaßöffnungen umfassende, voneinander getrennte Kanäle aufweist.The invention relates to a cooling device for the flame ring of a reciprocating diesel internal combustion engine, the flame ring being surrounded by a cooling water ring, the cooling device being provided directly in the flame ring and having water ducts and water inlet openings which comprise separate channels.

Eine Anordnung dieser Art ist bereits aus der DE-PS 317 749 bekannt. Es hat sich gezeigt, daß bei Diesel-Motoren treten im Bereich des Laufbuchsenkopfes bzw. des Flammringes während des Arbeitsprozesses des Motors Temperaturen auftreten, die eine ständige und wirkungsvolle Kühlung erforderlich machen. Hierzu reichen die bekannten Kühlwasser führenden Ringkanäle zwischen Laufbuchsen bzw. Flammring und umgebendem Kühlwasserring nicht aus.
Aufgabe der Erfindung ist es, eine Kühleinrichtung zu schaffen, die in einfacher Weise im Kopf der Laufbuchse oder im Flammring herstellbar ist und einen kontinuierlichen Kühlwasserdurchfluß bzw. -austausch von einer Ringkammer zur anderen Ringkammer zur Erzielung einer optimalen Kühlung der Laufbuchse und/oder des Flammringes gewährleistet.An arrangement of this type is already known from DE-PS 317 749. It has been shown that temperatures occur in diesel engines in the area of the liner head or the flame ring during the working process of the engine, which necessitate constant and effective cooling. For this purpose, the known cooling water-carrying ring channels between the bushings or flame ring and the surrounding cooling water ring are not sufficient.
The object of the invention is to provide a cooling device which can be produced in a simple manner in the head of the liner or in the flame ring and a continuous cooling water flow or exchange from one annular chamber to another annular chamber in order to achieve optimum cooling of the liner and / or the flame ring guaranteed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kanäle jeweils einen tangentialen Verlauf zur Innenbohrung des Flammrings aufweisen, und daß zwischen dem Kühlwasserring und dem Flammring ein enger, übereinanderliegende Kühlwasser-Ringkanäle miteinander verbindender Ringspalt vorgesehen ist.This object is achieved in that the channels each have a tangential course to the inner bore of the flame ring, and that between the cooling water ring and the flame ring are provided with a narrow annular gap, one above the other, connecting the cooling water ring channels.

Weitere vorteilhafte Ausgestaltungen werden durch die Merkmale der Unteransprüche gekennzeichnet.Further advantageous refinements are characterized by the features of the subclaims.

Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß bei einer Anordnung der Kühleinrichtung, welche aus mehreren wasserführenden Durchgangskanäle besteht, die tangierend zur Innenbohrung der Laufbuchse bzw. des Flammringes angeordnet sind, eine kontinuierliche Durchströmung von Kühlwasser gewährleistet ist. Die Anordnung der Kanäle ist so gewählt, daß der gesamte Ringbereich mit Kanälen durchsetzt ist und somit die heißesten Bereiche der Laufbuchse bzw. des Flammringes bzw. der Innenbohrung gleichmäßig kühlbar sind.The main advantages achieved by the invention are that with an arrangement of the cooling device, which consists of several water-carrying through channels, which are arranged tangent to the inner bore of the liner or the flame ring, a continuous flow of cooling water is ensured. The arrangement of the channels is selected so that the entire ring area is interspersed with channels and thus the hottest areas of the liner or the flame ring or the inner bore can be cooled uniformly.

Die Kanäle sind vorzugsweise in Schrägebenen so gelegt, daß eine Kühlwasser-Verbindung von einem unteren Kühlwasser-Ringraum zu einem darüber angeordneten weiteren Kühlwasser-Ringraum durch geradlinige, als Bohrungen hergestellte Kanäle erfolgen kann.The channels are preferably placed in inclined planes in such a way that a cooling water connection from a lower cooling water annulus to a further cooling water annulus arranged above them can take place through straight-line channels produced as bores.

Es ist zwischen dem Flammring bzw. der Laufbuchse und einer umgebenden Kühlwasserbuchse ein die beiden übereinanderliegenden Kühlwasser-Ringräume verbindender enger Spalt vorgesehen.A narrow gap connecting the two superimposed cooling water annular spaces is provided between the flame ring or the bushing and a surrounding cooling water bushing.

Die schräg verlaufenden Kanäle in der Laufbuchse bzw. im Flammring sind getrennt von zueinander angeordnet, so daß jeweils gesonderte Kühlwasserströme dem einen Ringraum zu dem anderen Ringraum befördert werden kann und somit eine optimale Kühlung erzielt wird.The sloping channels in the liner or in the flame ring are arranged separately from each other, so that separate cooling water flows can be transported from one annulus to the other annulus and thus optimal cooling is achieved.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Fig. 1
einen Schnitt durch eine Laufbuchse mit Flammring und umgebendem Kühlwasserring,
Fig. 2
eine Ausführung eines Flammringes bei dem die tangentialen Bohrungen in die Schnittebene projiziert sind,
Fig. 3
eine Draufsicht auf einen Flammring bzw. auf eine Laufbuchse mit tangentialen zur Innenbohrung verlaufenden Kanälen, und
Fig. 4
eine teilweise Seitenansicht zu Fig. 3.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
Fig. 1
a section through a liner with flame ring and surrounding cooling water ring,
Fig. 2
a design of a flame ring in which the tangential bores are projected into the cutting plane,
Fig. 3
a plan view of a flame ring or a liner with tangential to the inner bore channels, and
Fig. 4
3 shows a partial side view of FIG. 3.

Wie in Fig. 1 näher dargestellt, ist in einem Dieselmotor zwischen dem Zylinderkopf 1 und einer Laufbuchse 2 ein Flammring 3 angeordnet, welcher von einem Kühlwasserring 4 umschlossen ist. Dieser umgibt einen Kühlwasserraum, bestehend aus einem unteren Kühlwasser-Ringraum 5 und einem darüber angeordneten weiteren Kühlwasser-Ringraum 6. Diese beiden Räume 5 und 6 sind über eine Ringspalt 7 untereinander verbunden, der sich entweder zwischen dem Flammring 3 und dem Kühlwasserring 4 oder bei einer Ausführung ohne Flammring 3 zwischen dem Kopf 2a der Laufbuchse 2 und dem Ring 4 befindet.As shown in Fig. 1, a flame ring 3 is arranged in a diesel engine between the cylinder head 1 and a liner 2, which is enclosed by a cooling water ring 4. This surrounds a cooling water space, consisting of a lower cooling water ring space 5 and a further cooling water ring space 6 arranged above. These two spaces 5 and 6 are connected to one another via an annular gap 7, which is either between the flame ring 3 and the cooling water ring 4 or at a version without flame ring 3 between the head 2a of the liner 2 and the ring 4.

Die Kühleinrichtung kann im Kopf 2a der Laufbuchse 2 oder bei Anordnung mit einem Flammring 3 in diesem vorgesehen sein.The cooling device can be provided in the head 2a of the liner 2 or when arranged with a flame ring 3 therein.

Wie in Fig. 1 in Verbindung mit Fig. 2 näher gezeigt, kann im Bereich des engen Spaltes 7 ein gekrümmter Verbindungskanal 8 vorgesehen sein. Dieser weist eine untere Einlaßöffnung 9 sowie eine obere Auslaßöffnung 10 auf. Hierdurch wird die Randzone des Flammringes 2 bzw. des Kopfes 2a der Laufbuchse 2a optimal mit Kühlwasser vom unteren Ringraum 5 zum oberen Ringraum 6 durchströmt.As shown in more detail in FIG. 1 in connection with FIG. 2, a curved one can be formed in the area of the narrow gap 7 Connection channel 8 may be provided. This has a lower inlet opening 9 and an upper outlet opening 10. As a result, cooling water from the lower annular space 5 to the upper annular space 6 flows optimally through the edge zone of the flame ring 2 or the head 2a of the liner 2a.

Desweiteren können auch eine Vielzahl von Kanälen 11 bis 18 im Flammring 3 bzw. im Kopf 2a der Laufbuchse 2 angeordnet sein. Diese Kanäle sind jeweils tangential und nahe zur Innenbohrung vorgesehen. Sie umgeben die Innenbohrung 20 bzw. 21 in der Weise, daß jeweils - in Draufsicht gesehen - vier Kanäle 11 bis 14 eine quadratische Formation bilden und weitere vier Kanäle 11 bis 14 versetzt angeordnet sind, wobei eine optimale Anordnung des Versatzes unter einem Winkel von etwa 45o erfolgt. Denkbar ist aber auch ein Versatz unter einem anderen Winkel.Furthermore, a plurality of channels 11 to 18 can be arranged in the flame ring 3 or in the head 2a of the liner 2. These channels are each tangential and close to the inner bore. They surround the inner bore 20 or 21 in such a way that - viewed in plan view - four channels 11 to 14 each form a square formation and a further four channels 11 to 14 are arranged offset, an optimal arrangement of the offset at an angle of approximately 45 o is done. However, an offset at a different angle is also conceivable.

Die Kanäle 11 bis 18 sind alle getrennt voneinander und schräg angestellt und weisen jeweils eine Einlaßöffnung 9 zum Ringraum 5 und jeweils eine Auslaßöffnung 10 in den oberen Ringraum 6 auf.The channels 11 to 18 are all set apart and obliquely and each have an inlet opening 9 to the annular space 5 and an outlet opening 10 in the upper annular space 6.

Claims (4)

Kühleinrichtung für den Flammring einer Hubkolben-Diesel-Brennkraftmaschine, wobei der Flammring von einem Kühlwasserring umgeben ist, wobei die Kühleinrichtung direkt im Flammring vorgesehen ist und Wasserauslaß- und Wassereinlaßöffnungen umfassende, voneinander getrennte Kanäle aufweist, dadurch gekennzeichnet, daß die Kanäle (11 bis 18) jeweils einen tangentialen Verlauf zur Innenbohrung (20) des Flammrings (3) aufweisen, und daß zwischen dem Kühlwasserring (4) und dem Flammring (3) ein enger, übereinanderliegende Kühlwasser-Ringkanäle (5, 6) miteinander verbindender Ringspalt (7) vorgesehen ist.Cooling device for the flame ring of a reciprocating-piston diesel internal combustion engine, the flame ring being surrounded by a cooling water ring, the cooling device being provided directly in the flame ring and having water ducts and water inlet openings comprising separate channels, characterized in that the channels (11 to 18 ) each have a tangential course to the inner bore (20) of the flame ring (3), and that between the cooling water ring (4) and the flame ring (3) a narrow, superimposed cooling water ring channels (5, 6) interconnecting annular gap (7) is provided is. Kühleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kanäle (11 bis 18) jeweils in verschiedenen Schrägebenen angeordnet sind und wobei die Wassereinlaßöffnungen (9) in den unteren Kühlwasser-Ringkanal (5) und die Wasserauslaßöffnungen (10) in den oberen Kühlwasser-Ringkanal (6) münden.Cooling device according to claim 1, characterized in that the channels (11 to 18) are each arranged in different inclined planes and the water inlet openings (9) in the lower cooling water ring channel (5) and the water outlet openings (10) in the upper cooling water ring channel (6) flow out. Kühleinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mindestens acht Kanäle (11 bis 18) die Innenbohrung (21, 20) tangierend angeordnet sind, wobei jeweils vier Kanäle (11 bis 14) - in einer Draufsicht gesehen - eine quadratische Formation bilden und die weiteren vier Kanäle (15 bis 18) um einen Winkel versetzt zu diesen ersteren Kanälen, ebenfalls eine quadratische Form darstellend, angeordnet sind.Cooling device according to claim 1 or 2, characterized in that at least eight channels (11 to 18) are arranged tangentially to the inner bore (21, 20), four channels (11 to 14) each - seen in a plan view - forming a square formation and the other four channels (15 to 18) arranged at an angle to these former channels, also representing a square shape. Kühleinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Flammring (3) bzw. die Laufbuchse (2) mehrere, die beiden übereinanderliegenden Kühlwasser-Ringräume (5, 6) verbindene zusätzliche Kanäle (8) aufweisen, die benachbart des engen Spaltes (7) vorgesehen sind und jeweils eine Auslaßöffnung (10) und eine Einlaßöffnung (9) aufweisen.Cooling device according to one of claims 1 to 3, characterized in that the flame ring (3) or the liner (2) have a plurality of additional channels (8) connecting the two superimposed cooling water annular spaces (5, 6), which are adjacent to the narrow one Gaps (7) are provided and each have an outlet opening (10) and an inlet opening (9).
EP93113969A 1992-12-16 1993-09-01 Cooling device for combustion chamber opening or cylinder liner head Expired - Lifetime EP0602321B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4242473 1992-12-16
DE4242473 1992-12-16

Publications (2)

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EP0602321A1 true EP0602321A1 (en) 1994-06-22
EP0602321B1 EP0602321B1 (en) 1996-01-17

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EP93113969A Expired - Lifetime EP0602321B1 (en) 1992-12-16 1993-09-01 Cooling device for combustion chamber opening or cylinder liner head

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EP (1) EP0602321B1 (en)
DE (2) DE4306137C1 (en)
FI (1) FI105125B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054268A1 (en) * 1999-04-20 1999-10-28 Global United, Inc. Method and apparatus for removing organic waste from water, effluent and sludge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2647806A1 (en) * 2012-04-05 2013-10-09 Caterpillar Motoren GmbH & Co. KG Charge air guide element for internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE317749C (en) *
EP0094982A1 (en) * 1982-05-26 1983-11-30 Mitsubishi Jukogyo Kabushiki Kaisha Cylinder cover for water-cooled internal combustion engine
US5150668A (en) * 1992-02-20 1992-09-29 Caterpillar, Inc. Cylinder liner with coolant sleeve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE317749C (en) *
EP0094982A1 (en) * 1982-05-26 1983-11-30 Mitsubishi Jukogyo Kabushiki Kaisha Cylinder cover for water-cooled internal combustion engine
US5150668A (en) * 1992-02-20 1992-09-29 Caterpillar, Inc. Cylinder liner with coolant sleeve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054268A1 (en) * 1999-04-20 1999-10-28 Global United, Inc. Method and apparatus for removing organic waste from water, effluent and sludge

Also Published As

Publication number Publication date
DE59301465D1 (en) 1996-02-29
DE4306137C1 (en) 1994-03-31
FI934244A (en) 1994-06-17
EP0602321B1 (en) 1996-01-17
FI105125B (en) 2000-06-15
FI934244A0 (en) 1993-09-27

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