Article | REF: B2805 V1

Valve timing

Author: Bruno GEOFFROY

Publication date: November 10, 1995

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

2. Functional analysis

2.1 Permeability

The pressure drop generated by the flow depends on the permeability of the intake and exhaust systems. This is determined by the geometry (diameters, lengths, elbows, etc.) and by the presence of components such as air filters, flowmeters, catalytic converters, silencers, etc.). At high gas velocities, low permeability can limit engine filling.

This paragraph deals with the permeability of the sub-assembly consisting of the part of the duct located in the cylinder head, the seat and the valve. The minimum flow cross-section is defined, at the start of opening, by the portion of the cone released between the seat and the valve 2.1.1...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Hydraulic, aerodynamic and thermal machines

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Functional analysis