What is the role of engine valve rotary valve for marine diesel engine accessories

Generally speaking, under the same displacement, the more valves, the better the intake and exhaust efficiency. Traditional engines mostly have one intake valve and one exhaust valve per cylinder. This two-valve valve mechanism is relatively simple and relatively easy to maintain. For ordinary engines with low output power requirements, two valves can obtain relatively satisfactory engine output power and torque performance.

Engines with larger displacement and higher power use multi-valve technology. Z's simple multi-valve technology is a three-valve structure, that is, an intake valve is added to the two-valve structure in one row and one row.