The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Alternative label

• Diana S., Giglio V., Iorio B., Police G. (2002)
  The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators
  
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Diana S., Giglio V., Iorio B., Police G. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 110 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• SAE Paper 2001-01-3553. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• The present paper aims to evaluate the effects of the most diffused strategies to vary the load in Stoichiometric Spark Ignition (SI) engines with different Variable Valve Actuator systems. A one-dimensional commercial code has been used for the simulation of the inlet and of the exhaust phases, while the details of mixture formation have been analyzed by a fluid-dynamic three-dimensional code. This work is part of an activity aimed to set up a DISI engine for a medium vehicle with reduced CO2 emission. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto Motori, CNR, Napoli. (literal)

Titolo

• The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators (literal)

Abstract

• A number of Variable Valve Actuators (VVA) has been recently proposed to improve the performances and the part load efficiency of spark ignition engines. Due to their peculiarity, these systems work with different strategies (late or early inlet valve closing, reduced lift, etc.). The shape and the timing of the valve lift affect not only the pumping losses, but also air motion inside the cylinder. That influences mixture formation and combustion evolution of Direct Injection Spark Ignition (DISI) engines. The present paper compares the performances of different VVA systems with the aid of a 1D code for the simulation of the inlet and of the exhaust phases, and of a fluid-dynamic 3D code to evaluate mixing phenomena inside the cylinder. (literal)

Prodotto di

• Istituto motori (IM) (Istituto)

Autore CNR

• VENIERO GIGLIO (Unità di personale interno)
• SALVATORE DIANA (Persona)
• BIAGIO IORIO (Unità di personale interno)
• GIUSEPPE POLICE (Persona)

Insieme di parole chiave

• Keywords of "The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto motori (IM) (Istituto)

Autore CNR di

• BIAGIO IORIO (Unità di personale interno)
• SALVATORE DIANA (Persona)
• GIUSEPPE POLICE (Persona)
• VENIERO GIGLIO (Unità di personale interno)

Insieme di parole chiave di

• Keywords of "The effect of valve lift shape and timing on air motion and mixture formation of DISI engines adopting different VVA actuators" (Insieme di parole chiave)