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Rocker rocker or pendulum rocker

A rocker, plate technology, applied in valve devices, machines/engines, mechanical equipment, etc., to achieve the effect of reducing manufacturing costs

Inactive Publication Date: 2018-11-23
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is precisely in U- or H-shaped rocker arms produced by stamping and bending technology that structural space problems can arise

Method used

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  • Rocker rocker or pendulum rocker
  • Rocker rocker or pendulum rocker
  • Rocker rocker or pendulum rocker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 A pendulum rocker H made of sheet steel is disclosed in side view. The pendulum rocker consists of a vertical and flat plate 1 which is produced by precision blanking.

[0021] On the lower edge 4 , a contact surface 6 for the gas exchange valve is shown at the first longitudinal end 5 . At the second longitudinal end 8, the rocker H has a transverse hole 9 for bearing the rocker on the shaft. A lubricating oil hole 13 leads through the rocker arm H from the transverse hole 9 .

[0022] On the upper edge 10 of the rocker arm H, a cam rolling surface 11 is formed between the transverse middle part 7 and the first longitudinal end part 5 . The cam rolling surface and the contact surface 6 are not individually shaped and have approximately the width of the respective edge 10 , 4 . The cam raceways and contact surfaces are provided with a coated wear protection layer, wherein the prior grinding process takes place.

[0023] figure 2 A rocker H formed by two...

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PUM

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Abstract

The present invention provides a warpage type rocker arm or swinging rocker arm (H) which is made of a sheet material and aims at a valve transmisson device of an internal combustion engine. The rocker arm (H) is composed of a veritcal plate, on one hand, a contact surface (6) aiming at at least one scavenging air valve is arranged at a first longitudinal end part (5) at a lower edge (4), and on the other hand, a transverse hole (9) used for supporting a shaft is arranged in a section between a transverse middle part (7) and a second longitudinal end part (8), wherein for the rocker arm (H), a cam rolling surface (11) at an upper edge is inherent, and the cam rolling surface and the contact surface (6) are both composed of the widths of the respective edges (4, 10). The rocker arm of the present invention can be manufactured at a very low cost and just needs a very small structural space.

Description

technical field [0001] The invention relates to a rocker arm (Kipphebel) or swing arm (Schwinghebel) for a valve drive of an internal combustion engine, which has a contact surface for at least one gas exchange valve on a lower edge at a first longitudinal end And in the section between its transverse middle and the second longitudinal end, there is a transverse hole for bearing on the shaft, wherein, for the rocker arm, the cam rolling surface at the upper edge is inherent. Background technique [0002] The rocker arm according to the prior art consists of the accompanying drawings image 3 Learned. The rocker arm is a cast pendulum rocker arm and is arranged in a valve drive for small-volume internal combustion engines of 1-cylinder or 2-cylinder technology (mopeds, motorcycles, spare motors, garden equipment motors, etc.). As an alternative to a cast construction, forged rocker arms are also used in the aforementioned small-volume internal combustion engines. [0003] F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/18
CPCF01L1/185F01L2303/00F01L2810/02
Inventor 安德烈亚斯·格勒奇约翰纳·迈尔
Owner SCHAEFFLER TECH AG & CO KG