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DE614830C - Light metal pistons for internal combustion engines - Google Patents

Light metal pistons for internal combustion engines

Info

Publication number
DE614830C
DE614830C DESCH98165D DESC098165D DE614830C DE 614830 C DE614830 C DE 614830C DE SCH98165 D DESCH98165 D DE SCH98165D DE SC098165 D DESC098165 D DE SC098165D DE 614830 C DE614830 C DE 614830C
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engines
light metal
metal pistons
steel core
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
DESCH98165D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DESCH98165D priority Critical patent/DE614830C/en
Application granted granted Critical
Publication of DE614830C publication Critical patent/DE614830C/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 
    • F02F3/02—Pistons  having means for accommodating or controlling heat expansion
    • F02F3/04—Pistons  having means for accommodating or controlling heat expansion having expansion-controlling inserts
    • F02F3/045—Pistons  having means for accommodating or controlling heat expansion having expansion-controlling inserts the inserts being located in the crown

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

Leichtmetallkolben für Brennkraftmaschinen Gegenstand der Erfindung stellt eine verbesserte Ausführung des durch Patent 598 870 geschützten Kolbens für Brennkraftmaschinen dar. Erfindungsgemäß wird der eingegossene Stahlkern mit zwei Rippen versehen, die im Kolbenboden beginnen und bis an seine Enden verlaufen. Durch diese Rippen erhält der Stahlkern einen T-förmigen Querschnitt, der ihm eine größere Widerstandsfähigkeit verleiht. Die Rippen, von denen auch mehrere nebeneinander vorgesehen sein können, werden auf den eigentlichen Stahlkern durch Aufschweißen befestigt oder aber, was wohl vorzuziehen ist, durch Pressen angebracht.Light metal pistons for internal combustion engines The object of the invention is an improved version of the piston for internal combustion engines protected by patent 598 870. According to the invention, the cast steel core is provided with two ribs which start in the piston crown and extend to its ends. These ribs give the steel core a T-shaped cross-section, which gives it greater resistance. The ribs, several of which can be provided next to one another, are attached to the actual steel core by welding or, which is probably preferable, by pressing.

Die Zeichnung zeigt ein schaubildliches Ausführungsbeispiel mit je einer Rippe auf den seitlichen Flächen, und zwar in Abb. i an einem senkrechten Kolbenschnitt und in Abb. z an einer Draufsicht auf den Stahlkern.The drawing shows a diagrammatic embodiment with a rib on each of the lateral surfaces, namely in Fig. I on a vertical piston section and in Fig. Z on a plan view of the steel core.

Es bedeuten a den Kolben, b den Stahlkern, b', b" die Rippen des Stahlkernes und c die Gleitstücke des . Kolbens, die durch Schlitze d vom übrigen Kolbenkörper getrennt sind. Die Rippen beginnen im Kolbenboden und .erstrecken sich bis an die unteren Enden des Kernes.A denotes the piston, b the steel core, b ', b "the ribs of the steel core and c the sliding pieces of the piston, which are separated from the rest of the piston body by slits d. The ribs start in the piston crown and extend to the lower ones Ends of the core.

Claims (1)

PATENTANSPRUCH: Leichtmetallkolben für Brennkraftmaschinen mit eingegossenem federndem Stahlkern, Zusatz zu Patent 598 87o, dadurch gekennzeichnet, daß der Stahlkern (b) durch Rippen (b', b") verstärkt ist, die im Kolbenboden beginnen, bis an seine unteren Enden verlaufen und dem Stahlkern einen T-förmigen Querschnitt verleihen.PATENT CLAIM: Light metal pistons for internal combustion engines with cast resilient steel core, addition to patent 598 87o, characterized in that the steel core (b) is reinforced by ribs (b ', b ") which start in the piston head, extend to its lower ends and the Give the steel core a T-shaped cross-section.
DESCH98165D Light metal pistons for internal combustion engines Expired DE614830C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH98165D DE614830C (en) Light metal pistons for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH98165D DE614830C (en) Light metal pistons for internal combustion engines

Publications (1)

Publication Number Publication Date
DE614830C true DE614830C (en) 1935-06-19

Family

ID=7446314

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH98165D Expired DE614830C (en) Light metal pistons for internal combustion engines

Country Status (1)

Country Link
DE (1) DE614830C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887519A (en) * 1985-03-29 1989-12-19 Kolbenschmidt Aktiengesellschaft Expansion-controlled light alloy piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887519A (en) * 1985-03-29 1989-12-19 Kolbenschmidt Aktiengesellschaft Expansion-controlled light alloy piston

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