Lubrication Technology and Analysis for Variable Valve Event and Lift (VVEL) System NISSAN Motor Company, LTD

Format:

Conference/Event

Author/Creator:

Akasaka, Yuzou, author.

Conference Name:

Powertrains, Fuels and Lubricants Meeting (2009-06-15 : Florence, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

A new Variable Valve Event and Lift (VVEL) system has been developed as an effective technology for reconciling environmental performance such as lowering the fuel consumption and exhaust emissions with driving performance. This system can continuously vary both the intake valve lift and event angle (valve opening duration) over a wide operating range to flexibly control the valve timing and lift for a substantial improvement in engine performance. In developing the variable valve lift control system, the essential merit is based on the fundmental configuration of multiple-link mechanism. However, it is required to resolve tribological issues for the specific mechnism.This paper describes the structure of the VVEL system and its operating and motion conversion principles. It also explains the mechanism analysis, dynamic stress analysis and lubrication simulation techniques used in developing the VVEL system, the materials adopted and the surface treatment techniques applied

Notes:

Vendor supplied data

Publisher Number:

2009-01-1837

Access Restriction:

Restricted for use by site license