DE19860736A1 - Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket - Google Patents

Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket

Info

Publication number
DE19860736A1
DE19860736A1 DE1998160736 DE19860736A DE19860736A1 DE 19860736 A1 DE19860736 A1 DE 19860736A1 DE 1998160736 DE1998160736 DE 1998160736 DE 19860736 A DE19860736 A DE 19860736A DE 19860736 A1 DE19860736 A1 DE 19860736A1
Authority
DE
Germany
Prior art keywords
dovetail
liner
grooves
shaped holder
compressors
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.)
Withdrawn
Application number
DE1998160736
Other languages
German (de)
Inventor
Edwin Muecke
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.)
MUECKE, EDWIN, DIPL.-ING., HALL, AT
Original Assignee
Edwin Muecke
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 Edwin Muecke filed Critical Edwin Muecke
Priority to DE1998160736 priority Critical patent/DE19860736A1/en
Publication of DE19860736A1 publication Critical patent/DE19860736A1/en
Withdrawn legal-status Critical Current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 
    • F02F1/004—Cylinder liners

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The cylinder liner is of gray cast iron, metallic alloys, or sintered metals, fiber materials, or ceramics, and is for use in cylinder crank casings of light metal alloys. It has one or more dovetail-shaped holder grooves or similar. The grooves may have any suitable degree of angle, or the side surfaces of the dovetail may be concave.

Description

Laufbüchsen mit schwalbenschwanzförmiger/n Haltenuten (oder funktional gleichwertigen Nutenformen) verhindern, daß bei Zylin­ derkurbelgehäusen aus Leichtmetalllegierungen durch die unter­ schiedlichen Ausdehnungskoeffizienten (bezogen auf Büchse, Umguß) ein Ablösen des Umgusses erfolgt. Dadurch wird folgendes möglich:
Liner with dovetail-shaped retaining grooves (or functionally equivalent groove shapes) prevent cylinder crankcases made of light metal alloys from detaching the casting due to the different expansion coefficients (based on bushing, casting). This enables the following:

  • 1. Es können Kurbelgehäuse mit sehr kleinen Zylinderabständen hergestellt werden, ohne daß der Umguß sich im Zwickelbereich (Zusammenstoß der beiden Büchsen, siehe Abbildung) ablöst.1. It can crankcase with very small cylinder distances be produced without the casting around itself in the gusset area (Collision of the two cans, see illustration).
  • 2. Im Steg zwischen zwei Zylinderbohrungen (am Zusammenstoß der beiden Büchsen) entsteht aus Toleranzgründen ein Spalt von einigen Zehntel Millimetern. Er wird von einer etwaigen Sicke der Zylinderkopfdichtung überdeckt, sodaß eine druck­ dichte Abdeckung zwischen den Zylindern gegeben ist. Der Umguß wird auch in diesem Bereich durch den Hinterschnitt, der aus der angeschnittenen Schwalbenschwanznut gebildet wird, gehalten.
    Die Zylinderkopfdichtung im Zwickelbereich der Zylinderbohrun­ gen liegt zum größten Teil auf den Büchsen und nicht auf dem Blockmaterial auf. Dadurch ist sichergestellt, daß trotz der verminderten Wärmeabfuhr zwischen den Zylindern ein Ein­ drücken der Dichtungssicke in den weicheren Kurbelgehäusewerk­ stoff vermieden wird.    2. A gap of a few tenths of a millimeter is created in the web between two cylinder bores (at the collision of the two bushes) for tolerance reasons. It is covered by a possible bead of the cylinder head gasket, so that there is a pressure-tight cover between the cylinders. The overmolding is also held in this area by the undercut, which is formed from the cut dovetail groove.
    The cylinder head gasket in the gusset area of the cylinder bores is largely on the bushings and not on the block material. This ensures that, despite the reduced heat dissipation between the cylinders, a pressing of the sealing bead into the softer crankcase material is avoided.
  • 3. Um die im Stegbereich auftretenden höheren Temperaturen zu reduzieren, werden Kühlbohrungen oder Schlitze eingebracht. Bei sehr engen Bohrungsabständen ist es nahezu unvermeidlich, daß die Kühlkanäle auf die Büchsenwand treffen. Dies führt dazu, daß Kühlflüssigkeit zwischen dem Leichtmetallumguß des Gehäuses und der Büchse eindringt, wenn nicht der Umguß durch die beschriebenen schwalbenschwanzförmigen Halterungen gehalten bzw. sektoral abgedichtet wird.3. To the higher temperatures occurring in the web area reduce, cooling holes or slots are made. With very narrow hole spacing, it is almost inevitable that the cooling channels meet the can wall. this leads to that coolant between the light metal casting of the housing and the bush penetrates, if not the casting through the described dovetail-shaped brackets is held or sectorally sealed.

Claims (1)

Auf patentrechtlichen Schutz der konstruktiven Ausbildung der Zylinderlaufbüchsen mit schwalbenschwanzförmiger/n Haltenut/en (oder funktional gleichwertigen Nutenformen) am Zylindermantel, wobei die Anzahl der Nuten beliebig sein kann, sofern sie zumin­ dest 1 beträgt, der Winkelgrad der Nuten (siehe beigefügte Abbildung) ebenfalls beliebig sein kann oder die Seitenflächen des Schwalbenschwanzes konkav ausgebildet sein können.On patent protection of the constructive training of the Cylinder liners with dovetail-shaped retaining grooves (or functionally equivalent groove shapes) on the cylinder jacket, the number of grooves can be as long as they are at least is at least 1, the angular degree of the grooves (see attached Illustration) can also be arbitrary or the side surfaces of the dovetail can be concave.
DE1998160736 1998-12-30 1998-12-30 Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket Withdrawn DE19860736A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998160736 DE19860736A1 (en) 1998-12-30 1998-12-30 Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998160736 DE19860736A1 (en) 1998-12-30 1998-12-30 Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket

Publications (1)

Publication Number Publication Date
DE19860736A1 true DE19860736A1 (en) 2000-07-06

Family

ID=7893133

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998160736 Withdrawn DE19860736A1 (en) 1998-12-30 1998-12-30 Cylinder liner for compressors and IC engines has dovetail-shaped holder grooves to improved hold between liner and cast jacket

Country Status (1)

Country Link
DE (1) DE19860736A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314971A (en) * 2014-10-20 2015-01-28 株洲高精传动技术有限公司 Sliding bearing
CN105221575A (en) * 2015-09-25 2016-01-06 浙江南兴轴瓦有限公司 A kind of steel-based copper alloy bearing shell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314971A (en) * 2014-10-20 2015-01-28 株洲高精传动技术有限公司 Sliding bearing
CN104314971B (en) * 2014-10-20 2016-11-23 湖南南方宇航高精传动有限公司 A kind of sliding bearing
CN105221575A (en) * 2015-09-25 2016-01-06 浙江南兴轴瓦有限公司 A kind of steel-based copper alloy bearing shell

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: MUECKE, EDWIN, DIPL.-ING., HALL, AT

8127 New person/name/address of the applicant

Owner name: MUECKE, EDWIN, DIPL.-ING., 85737 ISMANING, DE

8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: F16J 1004

8130 Withdrawal