Development of a Lean Burn Engine with a Variable Valve Timing Mechanism

1996 ◽  
Author(s):  
Masato Matsuki ◽  
Kenji Nakano ◽  
Tohru Amemiya ◽  
Yuichiro Tanabe ◽  
Daisuke Shimizu ◽  
...  
Author(s):  
P. H. Parker

Variable valve timing has become an important feature of automotive engines as part of the search for a better compromise between performance, economy and emissions. This paper describes the Rover VVC system and has been written in two parts. The first part covers the initial feasibility study, the selection of the mechanism and the unique features evolved to suit the K16 engine. The second part covers the detailed mechanical layout, the development work undertaken and the performance obtained.


Author(s):  
P. H. Parker

Part 1 of this paper described the principles and basic design of the Rover variable valve timing system (VVC). This second part describes in detail the mechanical design which was developed to suit the particular requirements of the planned 1.8 litre version of the Rover K16 engine. The testing programme undertaken to establish durability and prove the product is covered and the performance obtained from the VVC engine is compared with the corresponding base engine which uses standard valve gear.


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