Compression ignition control by continuous intake and exhaust variable valve timing mechanism in premixed engine : Cycle simulation

2004 ◽  
Vol 2004.10 (0) ◽  
pp. 541-542
Author(s):  
GuoJun Liu ◽  
Youich Kawaguchi ◽  
Tomiyuki Sasaki ◽  
Masaru Ogura
Keyword(s):  
Variable Valve Timing ◽  
Compression Ignition ◽  
Valve Timing ◽  
Timing Mechanism ◽  
Cycle Simulation ◽  
Variable Valve ◽  
Engine Cycle

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 ◽  
...  
Keyword(s):  
Variable Valve Timing ◽  
Valve Timing ◽  
Lean Burn ◽  
Timing Mechanism ◽  
Variable Valve

The variable valve timing mechanism for the Rover K16 engine Part 1: Selection of the mechanism and the basis of the design

2000 ◽  
Vol 214 (2) ◽  
pp. 197-205 ◽  
Author(s):  
P. H. Parker
Keyword(s):  
Feasibility Study ◽  
Development Work ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Timing Mechanism ◽  
Automotive Engines ◽  
Engine Part ◽  
Variable Valve ◽  
Selection Of

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.

Design and Performance of a Variable Valve Timing System on a Highly Turbocharged Diesel Engine—Experimental and Predicted Results

1995 ◽  
Vol 209 (4) ◽  
pp. 297-311 ◽  
Author(s):  
C R Stone ◽  
H J Leonard ◽  
C Elliott ◽  
M J Newman ◽  
S J Charlton ◽  
...  
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Reverse Flow ◽  
Valve Train ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Single Cylinder ◽  
Cycle Simulation ◽  
Timing System ◽  
Variable Valve

A previous study using a cycle simulation program had identified the possibility that highly rated diesel engines might benefit from a variable valve timing (VVT) system. In particular, the study had shown that, by delaying the start of inlet valve opening at part load, it should be possible to eliminate the reverse flow that can lead to inlet port fouling. The work reported here encompasses the design and implementation of a variable valve timing system on a highly rated high-speed marine diesel engine. The principal topics addressed are the selection and design of a mechanism, a comparison between the predictions and results from mechanism testing on a single-cylinder valve-train rig and the engine performance predictions and results obtained when the mechanism was tested on the engine. The results from the single-cylinder test rig demonstrated that the mechanism performed satisfactorily, and this led to a design suitable for retro-fitting to the engine. The engine was comprehensively instrumented and the experimental results were in good agreement with the cycle simulation predictions.

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