Connecting rod

A connecting rod and channel technology, applied in the direction of connecting rod, connecting rod bearing, piston rod, etc., can solve the problems of decreased oil load capacity, fluid dynamic pressure loss, increased oil film thickness, etc., to improve the load capacity, simplify the manufacturing process, Avoid the effects of dry contact

Inactive Publication Date: 2017-08-01
THYSSENKRUPP METALURGICA CAMPO LIMPO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem that can be caused by the corrugated geometry is the loss of hydrodynamic pressure maintenance in the concave areas, which present excessively large gaps, therefore, the thickness of the oil film can increase and, as another disadvantage, the oil pressure decreases And the oil load capacity is reduced

Method used

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  • Connecting rod
  • Connecting rod
  • Connecting rod

Examples

Experimental program
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Effect test

Embodiment Construction

[0041] figure 1 Shown is a connecting rod 1 for an internal combustion engine with a large end channel 10 embodied to accommodate a pin journal of a crankshaft of the engine, and the connecting rod 1 comprising a small end channel 11 embodied for A piston pin housing the piston, a shaft 12 is arranged between the large end channel 10 and the small end channel 11 , and the shaft 12 forms the connection between the large end channel 10 and the small end channel 11 . Apart from the large end comprising two pieces, the connecting rod 1 according to the invention is designed as a one-piece construction, eg comprising a handle and cap arrangement.

[0042] The small end channel 11 has an inner channel surface 13 which transitions via an opening edge 15 into a side wall 23 of the small end. Thus, the length of the small end channel 11 is defined by the length of the channel 11 along the channel axis 14 from side wall 23 to side wall 23 and from opening edge 15 to opening edge 15 res...

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PUM

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Abstract

The present invention relates to a connecting rod (1) for an internal combustion engine, comprising: a big end passage (10) for receiving a pin journal of a crankshaft; a small end passage (11) for receiving a piston pin, the small end passage (11) extending along a passage axis (14) and delimited by opposed edges (15); a shaft (12) arranged between the big end passage (10) and the small end passage (11); said small end passage (10) comprising an inner passage surface (13) with a cylindrical surface portion having a first diameter (D); said small end passage (10) extending along said passage axis (14) between said opposed edges (15). According to the invention: said inner passage surface (13) comprising profiled regions (16) adjacent to each of said opposed edges (15) and extending at least over a part of the circumference of said opposed edges (15); said profiled regions (16) starting from said cylindrical surface portion and increasing into a maximum second diameter (D') at each of said opposed edges (15); - said inner passage surface (13) comprising a plurality of dimples (18) arranged in said cylindrical surface portion of said inner passage surface (13).

Description

technical field [0001] The present invention relates to a connecting rod for an internal combustion engine comprising a large end channel for receiving a pin journal of a crankshaft; a small end channel for receiving a piston pin, the small end channel extending along the channel axis and consisting of opposite edge bounding; a beam disposed between the large end channel and the small end channel; the small end channel comprising an inner channel surface comprising a cylindrical surface portion having a first diameter; the small end channel at the extending along the channel axis between the opposed edges. [0002] The connecting rod is the connection between the piston and the crankshaft, while the small end is connected to the piston by means of a pin and the large end is connected to the pin journal of the crankshaft. The main function of the connecting rod is to transmit the power generated by the combustion in the cylinder bore to the crankshaft, and the piston performs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C7/02F16C9/04F16C23/04F16C33/10F16J7/00
CPCF16C7/023F16C9/04F16C23/041F16C33/103F16J7/00F16C2240/44F16C2240/50F16C9/02F16C2360/22
Inventor 塞尔吉奥·斯特法诺·格雷罗
Owner THYSSENKRUPP METALURGICA CAMPO LIMPO
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