How many cylinders does the Geely DHE15 hybrid engine have?
2 Answers
Geely DHE15 hybrid engine is a three-cylinder engine. Number of engine cylinders: Common cylinder counts for automotive engines include 3, 4, 5, 6, 8, 10, and 12 cylinders. With the same bore diameter, more cylinders mean larger displacement and higher power output. For the same displacement, more cylinders allow for smaller bore diameters and higher achievable RPM, resulting in greater power enhancement. Displacement and cylinder count correspondence: Engines with 1.0L-1.5L displacement typically use 3 cylinders, 2.0L engines generally have 4 cylinders, 2.5L engines use 5 cylinders, approximately 3.0L engines usually have 6 cylinders, around 4.0L displacement employs 8 cylinders, 5.2L engines use 10 cylinders, and engines above 5.5L utilize 12 cylinders.
I recently studied Geely's hybrid system, the DHE15 engine is a 1.5-liter three-cylinder, which is particularly suitable for hybrid design. The three-cylinder engine is lighter than traditional four-cylinder ones, and the reduced weight allows the car to start faster, making it quite fuel-efficient for daily city driving. Geely uses turbocharging and electric assistance to compensate for the common vibration issues of three-cylinder engines. I test-drove the Borui equipped with this engine, and in hybrid mode, I hardly felt any vibration—it was actually very quiet. However, there is a slight noise at high speeds, but the overall fuel efficiency is truly impressive, averaging around 5L/100km, which saved me a lot of money on long trips. For those new to hybrids, this three-cylinder design combined with the advantages of electric motors is worth noting, as the lightweight design can also extend battery life.
