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Rail used as a torsional stop for the valve train of an internal combustion engine

A technology of valve mechanism and internal combustion engine, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., and can solve problems such as complex fingers

Inactive Publication Date: 2012-01-11
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the structure is very complex with two fingers forming the base, which taper off towards the rear from each other

Method used

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  • Rail used as a torsional stop for the valve train of an internal combustion engine
  • Rail used as a torsional stop for the valve train of an internal combustion engine
  • Rail used as a torsional stop for the valve train of an internal combustion engine

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Embodiment Construction

[0030] exist figure 1 and 3 as shown in the figure 2 and 4 The anti-rotation slats 8 of the roller tappets 9 have installation cavities 10 arranged in sequence at a certain interval, wherein the installation cavities 10 at the two outer ends of the anti-rotation slats 8 in the longitudinal direction open outwards. Each of the other mounting cavities 10 is provided with an insertion hole called a locking hole 11 . Furthermore, two screw holes 12 are arranged eccentrically on the anti-rotation bar 8 , that is to say offset with respect to the longitudinal center line.

[0031] The anti-rotation bar 8 has two positioning side plates 13 at each lock hole 11 and two guide surfaces 14 for cooperating with the anti-rotation surfaces 15 of the roller tappet 9 at each mounting cavity 10 . Furthermore, a projection 16 correspondingly protruding into the mounting cavity 10 is provided on the anti-rotation bar 8 . The roller tappet 9 is inserted into the lock hole 11 and moves over...

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Abstract

The invention realtes to a rail used as an anti-rotation guide for the valve train of an internal combustion engine comprising circular cylindrical spaces arranged in a row spaced apart at a distance from one another in the rail for accepting inserted valve lifters provided as roller tappets, wherein a rectangular plate is mounted on each of the roller tappets around an outside thereof for preventing rotation thereof around a rotational longitudinal axis, with two parallel longitudinal sides of the plate acting as anti-rotation guide areas of the roller tappets inserted into the space, which engage the rail at guide surfaces.

Description

[0001] This application is a divisional case of a patent application with an application date of December 16, 2003, an application number of 200380108842.9, and an invention title of "Structure of anti-rotation slats and roller tappets for internal combustion engine valve trains". technical field [0002] The invention relates to an anti-rotation strip for a valve train of an internal combustion engine. Background technique [0003] Such a guide strip is used in internal combustion engines to prevent the rotation of valve lifters designed as roller tappets, it is also used as an assembly aid and can be used exclusively for roller tappets of tappet valve trains. [0004] DE 197 12 610 A1, which shows a guide rail for an internal combustion engine, states that internal combustion engines generally have roller lifters which engage with the cam lift of a camshaft. Since the tappet does not allow rotation about its longitudinal axis, since the rollers on the tappet must remain in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/14
CPCF01L2105/00F01L2107/00F01L1/146F01L2305/00F01L2307/00
Inventor H·凯勒R·克拉普
Owner SCHAEFFLER TECH AG & CO KG