Sintered stator-cover unit and camshaft adjuster

A camshaft adjuster and stator technology, which is applied to engine components, machines/engines, mechanical equipment, etc., can solve the problems of high manufacturing consumption and installation consumption, and achieve the effect of shortening manufacturing and reducing costs

Active Publication Date: 2012-10-31
SCHAEFFLER TECH AG & CO KG
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in such a stator-cover unit, the disadva...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sintered stator-cover unit and camshaft adjuster
  • Sintered stator-cover unit and camshaft adjuster
  • Sintered stator-cover unit and camshaft adjuster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 The stator-cover unit 1 with the stator 3 and the locking cover 5 is shown in plan view. The stator-cover unit 1 , which is also referred to as a so-called stator can, is produced in one piece by means of a sintering method. In addition to simple production, this ensures the tightness of the stator-cover unit 1 and reduces error tolerances. Post-processing is likewise no longer necessary or only necessary to a small extent. The stator-cover unit 1 can be connected in a rotationally fixed manner to the drive wheel driven by the crankshaft, which in figure 1 is not shown in .

[0045] The stator-cover unit 1 is produced as a component by sintering from sintered steel Sint D11. The sintered steel has a carbon content of 0.6 mass % and a carbon content of 6.8 g / cm 3 Density. The stator-cover unit 1 is locally hardened in the region of the link groove 17 by temperature treatment and has a Vickers hardness of 500 HV5 there. The material of the stator-cover uni...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a stator-cover unit (1) for a camshaft adjuster (31), which is produced in one piece from a sintered material, comprising a stator (3) and a locking cover (5) which has a slot (17) for rotationally locking a rotor (33). According to the invention, the sintered material has at least in the region of the slot (17) a Vickers hardness of 400 HV to 850 HV. The invention further relates to a camshaft adjuster (31) having such a stator-cover unit (1) with the aforementioned properties, in which a rotor (33) having a number of radially outwardly extending rotor vanes (35) is positioned. The stator-cover unit (1) is simple to produce. A separate insertion part for the slot (17) is not required.

Description

technical field [0001] The invention relates to a stator-cover unit for a camshaft adjuster, comprising a stator and a locking cover, the locking cover has a sliding groove for locking a rotor against relative rotation. Furthermore, the invention relates to a camshaft adjuster with such a stator cover unit. Stator-cover units are often used in camshaft adjusters to support the valve control of internal combustion engines during operation. Background technique [0002] Stator-cover units of the aforementioned type are used today as a common component in relatively new internal combustion engines for vehicles. The stator-cover unit is part of the camshaft adjuster. It is used to actuate the camshaft or the cams mounted on the camshaft. The gas exchange valves in internal combustion engines can be actuated via cams. Through the arrangement and shape of the cams, the actuation times of the gas exchange valves can be determined in a targeted manner. The adaptation of the val...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2101/00F01L2001/34469F01L2103/00F01L2820/01F01L2301/00F01L2303/00Y10T74/2191
Inventor 奥拉夫·伯泽
Owner SCHAEFFLER TECH AG & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap