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Camshaft adjuster with a locking system

A technology of blocking devices and camshafts, which is applied in the direction of valve devices, machines/engines, mechanical equipment, etc., can solve problems such as adjustment error vibration, and achieve the effect of improving manufacturing tolerance and dimensional accuracy

Active Publication Date: 2011-01-05
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the problem is that, for the above-mentioned reasons and due to tolerance reasons, it is practically impossible to adjust a sufficiently small angular clearance, preferably less than 0.2 degrees, so that an undesired adjustment error and possible vibrations, especially rotational vibration

Method used

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  • Camshaft adjuster with a locking system
  • Camshaft adjuster with a locking system
  • Camshaft adjuster with a locking system

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Experimental program
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Embodiment Construction

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Abstract

Device for adjusting the angle of rotation between two rotating shafts, in particular between a drive shaft of a reciprocating-piston internal combustion engine and a camshaft for actuating gas exchange valves, with a rotation element which is connected in a rotationally fixed manner to the drive shaft, with a rotor which is connected in a rotationally fixed manner to the camshaft, with an angle of rotation adjusting system and with a locking device which has at least one locking bolt, which is mounted movably in one of the components, and at least one corresponding opening in the other component, wherein the locking bolt can be displaced into and out of the opening by means of spring and / or hydraulic force.

Description

Camshaft adjuster with blocking device Background technique A device of this type for angle adjustment is known from DE-19623818A1. In this swivel angle adjustment device, the rotor has blades and the rotary element has corresponding recesses, so that a swivel angle adjustment in one direction is possible by means of hydraulic pressurized fluid squeezed between the blades and the swivel element on one side, On the opposite side, however, the pressure load enables a rotational angle adjustment in the other direction of rotation. In order to be able to fix the rotor relative to the rotating element, for example in an end position, a closing device with a closing pin is arranged in one of the components and an opening is provided in the other component, wherein a spring force presses the closing pin into the opening , while the hydraulic fluid pushes the blanking pin out of the opening. Although the distribution of spring force and hydraulic force for the blocking pin has adv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442
Inventor T·克莱伯
Owner SCHAEFFLER TECH AG & CO KG
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