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Piston of internal combustion engine

A technology for internal combustion engines and pistons, applied in the field of internal combustion engine pistons, can solve disadvantages and other problems

Inactive Publication Date: 2013-11-13
MAN ENERGY SOLUTIONS SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diversion of the cooling oil from the hole in the connecting rod into the internal cooling chamber with this multiple design of the cooling oil guide sleeve is disadvantageous, since the installation of this multiple design of the cooling oil guide sleeve is only possible at great expense Tube

Method used

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  • Piston of internal combustion engine
  • Piston of internal combustion engine
  • Piston of internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0020] The invention relates here to an oil-cooled piston of an internal combustion engine, in particular an internal combustion engine configured as a diesel engine or a gas engine or a diesel-gas engine, for example a marine diesel internal combustion engine. This type of piston is also called a plunger (Tauchkolben).

[0021] figure 1 -3 shows the cross-sectional views of the internal combustion engine piston of the present invention cut along different cutting directions, wherein the piston includes a piston upper part 10 and a piston lower part 11 . The upper piston part 10 and the lower piston part 11 are preferably made of light metal, steel or ductile iron. The piston upper part 10 and the piston lower part 11 support each other and are preferably fixed to each other by fastening means configured as expansion screws.

[0022] A piston pin 12 is supported in a bore in the lower part 11 of the piston, wherein the piston pin 12 serves to connect the piston to a connecti...

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PUM

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Abstract

A piston of an internal combustion engine has an upper piston part (10), a lower piston part (11), a piston pin (12) which is mounted in the piston part (11) and used for connecting the piston to a connecting rod (13) of the internal combustion engine, a cooling chamber (15) formed between the upper piston part (10) and the lower piston part (11) and used for cooling oil for cooling the inside of the piston, and a cooling oil guide tube (19) which guides the cooling oil guided via a bore (18) in the connecting rod (13). At least one bore (21) is formed in the lower piston part (11) and cooperates with the cooling oil guide tube (19) so as to enable the guided cooling oil to be directly supplied to an outer cooling chamber (16) through the connecting rod (13) and the cooling oil guide tube (19).

Description

technical field [0001] The invention relates to a piston for an internal combustion engine according to the preamble of claim 1 . Background technique [0002] A piston for an internal combustion engine is known from DE 35 18 721 C2, which comprises a piston upper part and a piston lower part, which are preferably screwed together. A piston pin is supported in the lower part of the piston, wherein the piston pin serves to connect the piston to a connecting rod of the internal combustion engine. The piston according to DE 35 18 721 C2 is oil-cooled, wherein an internal cooling chamber for cooling the oil on the one hand and an external cooling chamber for cooling the oil are formed on the other hand between the upper piston part and the lower piston part, Wherein, the inner cooling chamber is connected to the outer cooling chamber through at least one transmission hole. In order to introduce the cooling oil into the internal cooling chamber, according to the prior art, supp...

Claims

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Application Information

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IPC IPC(8): F02F3/22
CPCF02F3/22F01P3/10F02F3/0015F01P3/06F02F3/18F02F3/00F02F3/16F16J1/00
Inventor T.舍尔H.佩尔策尔
Owner MAN ENERGY SOLUTIONS SE