Infográfico: O Motor de Quatro Tempos

Mechanical infographic poster 'THE FOUR-STROKE ENGINE' showing a detailed flat cutaway diagram of an inline four-cylinder engine block with one cylinder enlarged in a circular inset, the piston, connecting rod, crankshaft, valves and spark plug clearly rendered. Four numbered circular badges arranged clockwise around the inset illustrate the strokes: intake (pale blue valve open, air-fuel mixture drawn in), compression (piston rising, mixture squeezed), power (spark plug firing, orange flame burst), exhaust (gray gases exiting), each with a small directional arrow and a one-line caption. Color palette: engine silver #B0BEC5, steel gray #607D8B, oil dark gray #37474F, piston red #E53935, intake blue #42A5F5, exhaust smoke gray #9E9E9E, on a white background with a faint hexagonal bolt texture. Flat technical style, crisp sans-serif labels, even studio lighting, clean hierarchy, engineering print finish, 4k