Mechadyne Joins the Low Carbon Vehicle Partnership

Mechadyne is proud to become a member of the Low Carbon Vehicle Partnership. The Low Carbon Vehicle Partnership is an action and advisory group, established in 2003 to take a lead in accelerating the shift to low carbon vehicles and fuels in the UK. Visit the Low Carbon Vehicle...

Synergy Project: VVA Hardware Successfully Tested

The Synergy cylinder head was assembled and successfully tested on a spin rig at Mechadyne this month. The VLD mechanism, allowing for reduced manufacturing cost and ease of assembly, worked as predicted and will now be sent to IFP for fired engine testing. With a targeted 20% tailpipe CO2 reduction and Euro 6/7 emissions legislation compliance with minimal NOx after-treatment, we look forward to viewing the published results from this project with...

Synergy Project: VVA hardware Designed – Parts On Order

The VVA hardware design phase for the Synergy project has now been completed. This is an exciting project for Mechadyne as it uses a SOHC design with VLD, our variable lift and duration system, on both intake and exhaust. It is expected that this arrangement may potentially have a high cost-benefit ratio when compared with a similar DOHC system. It is also the first project to include previously patented refinements to the VLD mechanism for reduced cost and ease of...

PHD Thesis: “Cylinder Filling Control of Variable-Valve-Actuation Equipped Internal Combustion Engines”

Thomas Leroy has published his PhD thesis which details how Mechadyne’s VLD system can be used to significantly reduce diesel engine transient emissions. This paper shows how the fast response of a VVA system, generating a secondary exhaust valve lift (for internal EGR), can make up for the slow response of an external EGR cooler. Download Read the thesis...

SIA Paper: Innovative VVA Scavenging Concept for Diesel Engines

IFP has presented a paper on a new scavenging concept for diesel engines at the SIA International conference. This concept uses Mechadyne’s VLD system to generate a short intake valve pre-lift during an exhaust blow-down pulse (exhaust manifold pressure lower than that of the combustion chamber). This results in significantly improved scavenging and increased output. A 35% increase in low speed torque is predicted, potentially allowing for a 20% engine down-speed. This exciting new concept adds yet another benefit to using Mechadyne’s VLD system on a diesel engine. Click to contact the SIA for this...

Engine Technology International Article

Engine Technology International’s March Issue contains a feature article on valvetrain development. It contains interviews with many experts in the field of advance valvetrains including one with our Technical Director, Tim Lancefield....