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Rocker of internal combustion valve mechanism

A valve train, internal combustion engine technology, applied in the direction of machine/engine, mechanical equipment, engine components, etc., can solve the problems of increased cost and processing consumption, and achieve the effect of high rigidity

Inactive Publication Date: 2008-09-17
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the pipe sections connecting the side walls for the shaft support increase the rigidity, this leads to the already mentioned increased costs and machining effort

Method used

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  • Rocker of internal combustion valve mechanism
  • Rocker of internal combustion valve mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] 1a to 1c show a rocker arm of a valve train of an internal combustion engine, which comprises a rocker body 1 produced in one piece from a stamped sheet steel. The rocker body 1 essentially comprises two side walls 2 and 3 which are connected to one another in the region of the lower side walls by a cross member 4 so as to form a U-like cross section.

[0029] In the middle part 5 of the side walls 2, 3 of the rocker arm body 1 there are two holes 6, 7 aligned with each other and designed as drilled holes for mounting the rocker arm on an unillustrated shaft or an equivalent center of rotation superior.

[0030] The rocker arm body 1 has a bent profile, or the rocker arm has an axial offset, wherein, in the direction of the cam-side rocker arm end 12, the side wall 2 is only slightly bent inwards here as an example, And the opposite side wall 3 inwards is basically at right angles, so that side walls 2 and 3 extend parallel to each other again at the end 12 of the rock...

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PUM

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Abstract

The invention relates to a rocker of an internal-combustion engine air gate mechanism, which comprises two rocker bodies (1, 1') made from plank material composed of the beams (4, 4') connecting the lateral walls (2, 3); a cam lower rolling surface of the rocker end part (12) can be directly or indirectly passed to the air exchanging valve via another rocker end part (15); and the middle part (5) of the lateral walls (2, 3) has two holes (6, 7) which are mutually aligned for installing the rocker body (1) on the same shaft. In order to obtain the low cost and simple structure for the rocker and the reliable and sufficient rigidity, the shaft bearing of the rocker bodies (1, 1'), a hemi-shell shaft tiles (8, 8') aligned to the holes (6, 7) is combined with the beams (4, 4'). In addition, the beams (4, 4') are arranged with the enforced devices (10, 14) connected to the hemi-shell shaft tiles (8, 8').

Description

technical field [0001] The invention relates to a rocker arm of an internal combustion engine valve mechanism, which comprises a rocker body made of plate mainly composed of two side walls connected by cross beams, wherein the cam rolling surface movement at the end of one rocker arm can be passed through another A rocker arm end is indirectly or directly passed to the air exchange valve, and the side wall has two mutually aligned holes in the middle for the rocker arm body to be pivotably mounted on a shaft. Background technique [0002] Rocker arms made of sheet metal are known as inexpensive cam followers for valve control of internal combustion engines in motor vehicles. Its structure mainly consists of two sides connected by a beam, thus forming a U-shaped or H-shaped cross-section, wherein at one end, depending on the type of construction of the control device, there is a tapped surface for the cam or a tapped surface for the push rod. Support, and a contact surface i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/18
CPCF01L1/181
Inventor W・克里斯特根V・施米特
Owner SCHAEFFLER TECH AG & CO KG
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