Two-Stroke Diesel Engine Cycle Diagram - Power & Exhaust Strokes Schematic

This document is a scanned textbook-style schematic illustrating two strokes of a two-stroke diesel engine cycle: the Power stroke (left) and the Exhaust stroke (right). Each cutaway drawing shows a single cylinder with a piston, connecting rod, and crankshaft, plus a Roots-type blower (shown as two lobed rotors) feeding air through an intake passage into ports in the cylinder wall. The left diagram, labeled 'Power,' shows 'Air' entering through the blower and 'Fuel' being injected at the top of the cylinder through an injector, with the piston being driven downward (crankshaft rotation shown by a curved arrow). The right diagram, labeled 'Exhaust,' shows 'Air' still entering through the blower while burned gases exit through the exhaust valve at the top of the cylinder, indicated by the arrow labeled 'Ex.' A reader can learn how a uniflow-scavenged two-stroke diesel engine combines the power and exhaust/scavenging events, using blower-supplied air through cylinder ports and an overhead exhaust valve. The page contains no part numbers, specifications, year, make, or model information; it appears to be from a diesel technology training or reference text rather than a vehicle-specific manual.