Quadrature Direct Digital Frequency Synthesizer with High Compression Ratio

2006 ◽  
Author(s):  
Zhao Zhanfeng ◽  
Zhou Zhiquan ◽  
Qiao Xiaolin
Keyword(s):  
Compression Ratio ◽  
Frequency Synthesizer ◽  
High Compression Ratio ◽  
Digital Frequency ◽  
High Compression ◽  
Direct Digital Frequency Synthesizer

Comparing methods for improving spark-ignited engine efficiency: Over-expansion with multi-link cranktrain and high compression ratio with late intake valve closing

2020 ◽  
Vol 262 ◽  
pp. 114560 ◽  
Author(s):  
Zhuyong Yang ◽  
Niranjan Miganakallu ◽  
Tyler Miller ◽  
Jeremy Worm ◽  
Jeffrey Naber ◽  
...  
Keyword(s):  
Compression Ratio ◽  
Intake Valve ◽  
High Compression Ratio ◽  
Engine Efficiency ◽  
High Compression
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