Variable Valve Actuation Systems for Homogeneous Diesel Combustion: How Interesting are They?

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Variable Valve Actuation Systems for Environmentally Friendly Engines

INTRODUCTION VEHICLE engines have made remarkable progress since they first appeared and the operating range of engines in terms of rpm (revolutions per minute) and torque have expanded significantly. However, optimum engine design becomes difficult if the operation timing of the engine valves is fixed. For this reason, variable valve actuation has been used to optimize the valve timing in resp...

متن کامل

Mechanical Variable Valve Actuation Systems for Motorcycle Engines

This paper summarizes the results of design of new mechanical variable valve actuation (hereafter VVA) systems, developed for high performance motorcycle engines, at University of Napoli Federico II, Department of Industrial Engineering–Section Mechanics and Energy (hereafter DiME). In addition to a first simple (and limited) system used just as a model for the previous analysis, the work has e...

متن کامل

Air-Path Model Predictive Control of a Heavy-Duty Diesel Engine with Variable Valve Actuation

In this paper, a model-based strategy for the air-path, fuel injection timing, and fuel pressure control of a heavy-duty Diesel engine is presented. The engine system is a six-cylinder Diesel engine, equipped with a dual-stage fixed geometry turbo system and a variable valve actuation (VVA) system. The VVA operates on the intake valves, and realizes a late Miller combustion cycle. The control s...

متن کامل

Cylinder Filling Control of Variable-Valve-Actuation equipped Internal Combustion Engines

The production of torque and pollutants of Variable Valve Actuation equipped internal combustion engines found in the automotive industry (both Diesel and gasoline engines) is studied. Variable Valve Actuation (VVA) is a technology which has been introduced to optimize engine efficiency at steady-states covering a wide range of operating conditions. In more details, the outcome of the internal ...

متن کامل

What Are Lyapunov Exponents, and Why Are They Interesting?

At the 2014 International Congress of Mathematicians in Seoul, South Korea, Franco-Brazilian mathematician Artur Avila was awarded the Fields Medal for “his profound contributions to dynamical systems theory, which have changed the face of the field, using the powerful idea of renormalization as a unifying principle.” Although it is not explicitly mentioned in this citation, there is a second u...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Oil & Gas Science and Technology - Revue de l'IFP

سال: 2008

ISSN: 1294-4475

DOI: 10.2516/ogst:2008004