Abstract
Variable valve timing (VVT) and variable valve lift (VVL) are used to improve the performance, fuel economy and to reduce emissions of a combustion engine. Recently these issues have assumed increasing importance. Here we will combine VVT and VVL in a unified concept of variable valve control (VVC). We present a mechanical solution to fully variable valve control. The cam consists of two symmetric parts that slide on the camshaft; this way the system can provide a continuum of cam characteristics to meet a wide range of engine requirements.
Originalsprache | englisch |
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Seiten (von - bis) | 99-114 |
Fachzeitschrift | Journal for Geometry and Graphics |
Jahrgang | 22 |
Ausgabenummer | 1 |
Publikationsstatus | Veröffentlicht - 2018 |
Schlagwörter
- internal combustion engine, camshaft, valve timing, valve lift, valve control, surface interpolation, envelope surface