Control valve for an apparatus for variable setting of the control times of gas exchange valves of an internal combustion engine
US7389756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Nov 2, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86767
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a control valve (20) for an apparatus (1) for the variable setting of the control times of gas exchange valves (110, 111) of an internal combustion engine (100), having a valve housing (22) of hollow configuration which has at least one inflow connection (P), at least one outflow connection (T) and at least two working connections (A, B), and having a control plunger (35). In order to retain relatively high flexibility in the design of the control valve components (22, 35) and to simplify the connection of the control valve (20) to the surrounding construction (3), it is proposed to arrange a pressure medium guide insert (27) of hollow configuration within the valve housing (22), and to form at least one pressure medium channel (34) which extends substantially in the axial direction, the pressure medium guide insert (27) engaging around the pressure medium channel (34) at least partially, the pressure medium channel (34) communicating with at least one of the connections (A, B, P, T) and, via a radial opening (33b-d), with the interior of the pressure medium guide insert (27), and the control plunger (35) being arranged within the pressure medium guide inse…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.