Locking device for a device for varying valve timing of gas exchange valves of an internal combustion engine
US6079382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34459
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A locking device for a device (1) for varying the valve timing of gas exchange valves of an internal combustion engine, said device (1) comprising an element (3) which is attached to a crankshaft of the internal combustion engine and is in driving relationship with the crankshaft through a traction element, said device further comprising an element (4) attached rotationally fast to the camshaft (2), there being arranged between the two said elements (3, 4), at least two pressure chambers (5, 6) connected to a pressure medium supply and a hydraulically actuatable adjusting element (7) through which a connection for transmitting force from the element (3) attached to the crankshaft to the element (4) attached to the camshaft is established, and through which the two said elements (3, 4) can be made to rotate or be fixed relative to each other within an adjusting range. According to the invention, the element (4) attached to the camshaft (2) is arranged so as to penetrate axially through the element (3) attached to the crankshaft and comprises a free end (8) outside of the device (1), on which free end (8) is arranged a sealed locking element which is connected hydraulically to one or…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.