Sintered stator-cover unit and camshaft adjuster
US8887677B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Apr 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2191
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A stator-cover unit (1) for a camshaft adjuster (31), which is produced in one piece from a sintered material, including 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.