A shared oil pump supplies lubricating oil to both the engine and supercharger passages, simplifying structure and maintaining pressure.
Band-like damping members between the fan cover and cylinder block prevent resonance noise at normal engine speeds.
Radial thrust reliefs in a half thrust bearing redirect lubricating oil to the central slide surface, preventing resin layer damage from crankshaft deflection.
Protruding case portion with an air layer insulates the gas outlet passage to maintain blow-by gas flow.
Segmented gas feed parts direct flow toward internal bores and lateral surfaces to overcome insufficient temperature control in complex monoblock castings.
A bearing cap embeds an iron-based frame within a light-alloy part to shift radially inward during thermal expansion.
Offset crankshaft axes synchronize inlet and exhaust pistons in phase, eliminating valves to reduce reverse torsional losses and component stress.
Rotating the threaded insert within the bracket body adjusts position to eliminate tolerance gaps and reduce fastener stress.
Segmented seals with sleeves secure fuel pipes through large openings, reducing assembly complexity and improving high-pressure line durability.