What is VVL? What is VVT? How does VVL/VVT work? What is variable valve lift? What is variable valve timing? We're going to ...

Harley-Davidson has filed a patent application for a variable valve timing (VVT) V-twin engine, possibly for the Sportster to improve economy and reduce emissions. The iconic American manufacturer has ...

2021年1月4日に、「グローバル可変バルブタイミング（VVT）に関する市場レポート, 2016年-2027年の推移と予測、会社別、地域別、製品別、アプリケーション別の情報」の調査資料を発表しました。可変バルブタイミング（VVT）の市場生産能力、生産量、販売量 ...

VVT（1991年） VVT（Variable Valve Timing）とは可変バルブタイミングシステムの略。エンジンの負荷に応じ、吸気側のバルブタイミングを30度（対クランク角）可変させることができる。これによって低回転域でのトルク特性やエミッションコントロールを確保し ...

The Mitchell mechanical Variable Valve Timing (VVT) system is described. The way in which it exploits variable angular velocity to change valve timing is explained. The system was used in a programme ...

Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...

We’ve just heard that Piaggio Group, parent company to Aprilia, is working on a mechanical variable valve timing (VVT) system – and the first to reap the benefits of the tech will be none other than ...

When Chevrolet announced that the fifth-generation Camaro would come with two different V-8 engine depending on what transmission the customer ordered, many enthusiasts were a bit confused. The LS3, ...