DE452296C - Device for heat dissipation on aluminum pistons - Google Patents

Device for heat dissipation on aluminum pistons

Info

Publication number
DE452296C
DE452296C DES70892D DES0070892D DE452296C DE 452296 C DE452296 C DE 452296C DE S70892 D DES70892 D DE S70892D DE S0070892 D DES0070892 D DE S0070892D DE 452296 C DE452296 C DE 452296C
Authority
DE
Germany
Prior art keywords
heat dissipation
piston
aluminum pistons
powder
metal
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
Application number
DES70892D
Other languages
German (de)
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.)
ANON DIREMO SOC
Original Assignee
ANON DIREMO SOC
Publication date
Priority to DES70892D priority Critical patent/DE452296C/en
Application granted granted Critical
Publication of DE452296C publication Critical patent/DE452296C/en
Expired 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
    • F02F3/00—Pistons 
    • F02F3/16—Pistons  having cooling means
    • F02F3/18—Pistons  having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston

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)

Description

Einrichtung zur Wärmeableitung an Aluminiumkolben. Der Gegenstand der Erfindung betrifft eine Einrichtung zur Wärmeableitung an Aluminiumkolben durch pulver- oder statibförmiges Metall, das sich in einem Hohlraum unter dem Kolbenboden befindet. Von bekannten Einrichtungen, welche Metall im Kohlenhohl: raun in flüssigem Zustand zur Wärmeableitung durch Pendelkühlung benutzen, unterscheidet sich der Erfindungsgegenstand dadurch, daß der Metallstaub oder das Pulver durch eine in den Hohlraum. hineinragende, zweckmäßig in der 1Uittelachse des Kolbens angeordnete und selbst hohl ausgebildete Verdrängerschraube derart zusammengepreßt ist, daß es den Hohlraum vollständig ausfüllt. Hierdurch ward der Vorteil. erzielt, daß der Kolbenhoden dünn ausgeführt werden kann, insofern die den Kolbenboden beanspruchenden Kräfte von dem zusammengepreßten Metallstaub aufgenommen werden, wobei eine gute Wärmeahleitung bei, entsprechender Wahl dies Pulvers (z. B. Kupferstaub) gegebien ist.Device for heat dissipation on aluminum pistons. The object The invention relates to a device for heat dissipation on aluminum pistons powder or static metal that is located in a cavity under the piston crown is located. From known bodies, which metal in coal: raun in liquid Use state for heat dissipation through pendulum cooling, the differs Subject matter of the invention in that the metal dust or the powder by an in the cavity. protruding, expediently arranged in the central axis of the piston and even hollow displacement screw is compressed in such a way that it completely fills the cavity. This gave rise to the advantage. achieved that the Piston testicles can be made thin, insofar as those stressing the piston crown Forces are absorbed by the compressed metal dust, with a good Heat conduction with, appropriate choice of this powder (e.g. copper dust) given is.

Die Zeichnung zeigt einen Achslalschnitt durch einen Alunvgniumkolben mit der neuen Wärmeablsitungs.einrichtung.The drawing shows an axial section through an aluminum piston with the new heat dissipation device.

Hinter dem Kolbenboden a, der hier verhältnismäßig dünn gehalten war-den kann, befindet sich ein Hohlraum b, der mit feinem Metallpulver oder Metallstaub-, vorzugsweise Kupferstaub, gefüllt und durch eine Verdrängerschraube c abgeschlossen ist.Behind the piston crown a, which was kept relatively thin here can, there is a cavity b, which is filled with fine metal powder or metal dust, preferably copper dust, filled and closed by a displacement screw c is.

Diese Verdrängerschraube, die zweckmäßig in der Kolbenachse angeordnet und hohl ausgebildet ist, dient dazu, den Kupferstaub zusammenzupressen, so daß er den dünnen Kolbenboden a unterstützt.This displacement screw, which is expediently arranged in the piston axis and is hollow, serves to compress the copper dust so that he supports the thin piston crown a.

Bei Anwendung der Erfindung wird die Verwendung von Aluminiumkolben selbst bei den höchsten vorkommenden Temperaturen noch möglich gemacht. Das Gewicht des Aluminiumkolbens mit Kupferfüllung beträgt nur etwa die Hälfte des. Gewichtes eines Gußkolbens.When applying the invention, the use of aluminum pistons made possible even at the highest temperatures that occur. The weight of the aluminum piston with copper filling is only about half the weight a cast piston.

Claims (1)

PATENTANSPRUCH: Einrichtung zur Wärmeableitung an Aluminiumkolben durch pulver- oder srtaubföTniiges Metall, das sich in einem Hohlraum unter dem Kolbenboden befindet, dadurch gekennzeichnet, daß der Metallstawh (oder das Pulver b) durch eine in den Hohlxaurn hineinragende, zweckmäßig in der Mittelachse des Kolbens angeordnete und selbst hohl ausgebildete Verd@rängerschraube (c) derart zusammengepreßt ist, daß es den Hohlraum vollständig ausfüllt. Claim: Device for heat dissipation on aluminum pistons through powdery or dusty metal, which is located in a cavity under the piston crown, characterized in that the metal rod (or the powder b) is expediently arranged in the center axis of the piston through a metal rod (or powder b) protruding into the hollow space and even hollow displacement screw (c) is compressed in such a way that it completely fills the cavity.
DES70892D Device for heat dissipation on aluminum pistons Expired DE452296C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES70892D DE452296C (en) Device for heat dissipation on aluminum pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES70892D DE452296C (en) Device for heat dissipation on aluminum pistons

Publications (1)

Publication Number Publication Date
DE452296C true DE452296C (en) 1927-11-09

Family

ID=7502096

Family Applications (1)

Application Number Title Priority Date Filing Date
DES70892D Expired DE452296C (en) Device for heat dissipation on aluminum pistons

Country Status (1)

Country Link
DE (1) DE452296C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302380A2 (en) * 1987-08-05 1989-02-08 Alcan Deutschland Gmbh Thermally stressed machine part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302380A2 (en) * 1987-08-05 1989-02-08 Alcan Deutschland Gmbh Thermally stressed machine part
EP0302380A3 (en) * 1987-08-05 1989-08-02 Alcan Deutschland Gmbh Thermally stressed machine part

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