Which brand does the DVVT engine belong to?
2 Answers
DVVT engines are produced in Japan. Their core technology is called VVT, and each automobile manufacturer has its own improvements. The D-VVT engine adopts a principle similar to that of the VVT engine, utilizing a relatively simple hydraulic cam system to achieve its functions. The features of the DVVT engine are introduced as follows: Introduction 1: DVVT stands for Dual Variable Valve Timing, which refers to the variable timing technology for both intake and exhaust valves. Engines equipped with DVVT technology are more efficient, energy-saving, and environmentally friendly compared to those using only intake valve timing technology, which is more common in the current market. Introduction 2: DVVT technology can reduce fuel consumption by 5%, while increasing power output by 10%, achieving the power performance of a 2.0L displacement engine. It meets the National IV emission standards and optimizes the air-fuel ratio of the gasoline-air mixture in the combustion chamber, significantly improving idle stability for better comfort. Introduction 3: The DVVT engine represents the most competitive new mainstream technology, a comprehensive upgrade based on VVT engine technology. It has been applied in high-end models such as the BMW 325 DVVT. Although the principle of the DVVT engine is similar to that of the VVT engine, the VVT engine can only adjust the intake valve, whereas the DVVT engine can adjust both intake and exhaust valves. The 1.8L DVVT engine can also achieve linear adjustment of valve timing within a certain range according to different engine speeds, featuring excellent characteristics of high torque at low speeds and high power at high speeds.
I used to be an auto mechanic and know that DVVT technology is quite common. It's a variable valve timing engine design that allows the engine to operate more efficiently, such as improving fuel efficiency at low RPMs and enhancing power performance at high RPMs. This isn't exclusive to any particular brand but is adopted by many automakers. For example, Chinese brand Geely has an engine system called DVVT, and others like Roewe or Hyundai have also used similarly named technologies. I've repaired many Geely vehicles equipped with DVVT, and owners reported significantly lower fuel consumption and smoother driving. Additionally, international brands like Toyota have their VVT-i, and Honda has VTEC—similar principles, just different names. When maintaining a DVVT engine, it's best to pay attention to regular oil changes to prevent carbon buildup from affecting valve operation. With simple routine maintenance, it can run reliably for a long time. In short, this feature is quite practical when choosing a car.
