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Piston for a combustion engine

An internal combustion engine and piston technology, which is applied in the field of internal combustion engine pistons, can solve the problem of inability to apply prestressing and other problems

Inactive Publication Date: 2013-01-02
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this is that it is not possible to apply to the threaded connection the prestressing force required to fasten such a connection

Method used

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  • Piston for a combustion engine
  • Piston for a combustion engine

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Experimental program
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Embodiment Construction

[0014] FIG. 1 shows a cross-sectional view of a piston 1 which is composed of a piston base body 2 and an annular groove reinforcement 4 screwed to the piston base body in the region of the piston head 3 .

[0015] On the lower part facing away from the piston head 3, the piston base body 2 has two piston pin bosses 5 and 6, each of which has a piston pin hole 7 and 8, in order to insert a piston pin not shown in the figure. as in particular image 3 As shown in , the piston pin hubs 5 , 6 are connected on both sides to rod elements 9 , 10 , wherein FIG. 1 shows the rod element 10 viewed from above.

[0016] Piston head 3 has a shallow piston head recess 11 in design. In the area of ​​the piston head sides, on the radially outer edge of the piston 1, a radially outwardly projecting peripheral rim 12 of at least approximately rectangular cross-section is mounted, which radially outwardly has a circumferential To the screw thread 13, there is a surrounding recess 14 connected t...

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Abstract

Piston (1) comprises a peripheral collar (12) arranged a low axial distance from the piston base (3) and having a bend in the hub direction and a radial width sufficient for elasticity in the axial direction.

Description

technical field [0001] The invention relates to a piston of an internal combustion engine. The internal combustion engine piston comprises a piston base body on which: a piston head; a piston pin hub arranged on the side of the piston facing away from the piston head; a piston pin hole formed in the piston pin hub; A rod element connected to the pin hub; and an annular region that is arranged radially outward from the piston head and extends axially along the direction of the pin hub and radially resets, said region has a very short axial distance from the piston head A radially outwardly projecting annular rim of at least approximately rectangular cross-section arranged at the radially outer side of the piston and having a circumferential external thread on the radially outer portion, the diameter of which is smaller than that of the piston , said region additionally has a circumferential recess connected at the side of the pin hub, and the piston of said internal combustion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F3/00F02F3/22F16J1/00
CPCF02F3/0023F02F3/22F02F3/00F16J1/00
Inventor 赖纳·沙普
Owner MAHLE INT GMBH