Piston with structured design

A technology of structural form and piston, which is applied in the field of piston with structural form, can solve the problems of weight reduction, durability or strength loss, piston weight is not optimal, etc., and achieve the effect of weight saving

A technology of structural form and piston, which is applied in the field of piston with structural form, can solve the problems of weight reduction, durability or strength loss, piston weight is not optimal, etc., and achieve the effect of weight saving

CN110869600APending Publication Date: 2020-03-06KOLBENSCHMIDT AG
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  • Piston with structured design
  • Piston with structured design
  • Piston with structured design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 The piston 1 is shown from below in a three-dimensional view, wherein the opposite load-bearing skirt section 2 is designated with the reference numeral 2, the connecting wall connecting the opposite load-bearing skirt sections 2 to one another Indicated with reference numeral 3 . The connecting walls 3 each extend from the piston pin hub 4 in the direction of the side edge of the load-bearing skirt wall section 2 .

[0015] It should be pointed out at this point that the method known from patent document DE 10 2004 031 513 A1 can be used for the production of the piston 1 , but it does not have to be used. Because the piston base body of the finished piston 1 is formed after forging, it should be noted that the participating elements (such as the skirt wall section 2, connecting wall 3, piston pin hub 4 and the like) have the required pull-out for the forging process. Die slope. Besides a forging process, production by a casting process is obviously also c...

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Abstract

Disclosed is a piston (1) of an internal combustion engine, constructed with a structured design and having two supporting shaft wall sections (2) lying opposite one another, with respective connecting walls (3) extending from a piston hub (4) towards the lateral edge of the supporting shaft wall sections (2), characterised in that at least one rib (5; 6; 7), preferably three ribs (5, 6, 7) is (are) provided in an inner region of the piston (1) and the amount of material in the regions surrounding the at least one rib (5; 6; 7) is reduced.

Description

technical field [0001] The invention relates to a weight-optimized piston of an internal combustion engine and a method for producing the weight-optimized piston according to the features stated in the respective preambles of the two independent claims. Background technique [0002] It is always necessary to achieve the required strength, durability and weight in pistons for internal combustion engines. [0003] For strength and durability, pistons are manufactured from forged piston blanks. [0004] A production method is known from patent document DE 10 2004 031 513 A1. In this case, the piston blank is forged and the protruding flange is shaped, thereby largely achieving the final shape of the piston, wherein behind the formed flange a cavity is produced, which can be used, for example, as a cooling channel. After completion of the machining of the piston blank, in particular by welding the free end of the formed flange to the base body of the piston blank and dimensio...

Claims

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Application Information

Patent Timeline
06 Mar 2020
Publication
CN110869600A
IPC
F02F3/00; F02F3/22
CPC
F02F3/003; F02F3/0076; F02F3/22; B23P15/10; F02F2200/04; F16J1/02; F16J1/04
Inventors
G·米勒; G·卢茨