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Structural unit of the valve train of an internal combustion engine

A technology of structural units and valve trains, applied in the direction of engine components, machines/engines, mechanical equipment, etc., which can solve problems such as the problem of continuous clamping of connecting clips

Inactive Publication Date: 2019-03-19
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the constant tightening of the connection clips proved problematic

Method used

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  • Structural unit of the valve train of an internal combustion engine
  • Structural unit of the valve train of an internal combustion engine
  • Structural unit of the valve train of an internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0018] figure 1 A structural unit 1 of a valve train of an internal combustion engine is disclosed. The structural unit 1 comprises a rocker 2 made of thin-walled steel sheet metal, a support element 3 and a connecting clip 4 made of spring sheet metal.

[0019] The rocker arm 2 is U-shaped in cross section. In its central region 5 , the rocker arm has a cutout 25 with a cam impact surface 6 present as a roller. On its underside 7 , the rocker arm 2 has on the one hand a stop 9 for the gas exchange valve in the first end 8 and on the other hand a ball-and-socket-shaped indentation 11 at the second end 10 .

[0020] For example in figure 1 , figure 2 It can be seen in the figure that the head 12 of the support element 3 rests in the last-mentioned inner recess 11 . Here, the rocker arm 2 is fastened in an articulated manner to the head 12 of the support element 3 via a connecting clip 4 in a manner that prevents it from falling out.

[0021] The connecting clip 4 is impl...

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PUM

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Abstract

The connecting clip (4) fixes the rocker arm with its ball-and-socket-shaped indentation at its end on the head (12) of the support element (3), wherein the connecting clip consists of two cross-bow frames at one end. (13) Formed by connected spring arms (14, 15), and wherein the spring arm (14) rests on the underside (7) of the rocker arm (2) and surrounds the support element ( 3) in the holding area (17) below its head (13), and wherein an additional spring arm (15) extends on the upper side (18) of the rocker arm (2), wherein the support element ( 3) The supply channel (19) leads through the inner recess (11) for oil spray lubrication, wherein the additional spring arm (15) of the connecting clip (4) is closed in the ball-and-socket-shaped inner recess (11) is placed on the upper side (18) of the rocker arm (2) and has an oil injection hole (20) in fluid connection with the channel (19), the oil injection hole (20) passing through the rocker arm in the longitudinal direction The second end (10) of the arm is pointed away from the rocker arm (2).

Description

technical field [0001] The invention relates to a structural unit of a valve train of an internal combustion engine, the structural unit having a rocker arm with a cam impact surface in the central region, a rocker arm with a cam impact surface on its underside and a first end for Stop of the gas exchange valve and has at the second end a ball-and-socket-shaped indentation via which the rocker arm is connected by two spring arms connected at one end by a crossbow The clip is articulated on the head of the support element, wherein a spring arm rests on the underside of the rocker arm and encloses the retaining region of the support element below its head with a recess, and additionally The spring arm extends on the upper side of the rocker arm, and the channels supplied by the support element lead through the recess for oil injection lubrication. Background technique [0002] Structural units provided with connecting clips are obtained from the prior art (see DE 10 2004 041 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/18F01L1/24
CPCF01L1/185F01L1/2405F01L2001/187F01L2810/02F01L1/18
Inventor 彼得·赛勒奥利弗·施内尔
Owner SCHAEFFLER TECH AG & CO KG
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