If a slow-speed two-stroke cycle diesel...

Question 1 of 2707066636eef28f7522a1c5202a5

If a slow-speed two-stroke cycle diesel engine is fitted with scavenging air ports and exhaust ports located on opposite sides of the cylinder wall, what scavenging flow-pattern is utilized?

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Question 1 of 27070

If a slow-speed two-stroke cycle diesel engine is fitted with scavenging air ports and exhaust ports located on opposite sides of the cylinder wall, what scavenging flow-pattern is utilized?

🔍 Key Concepts

• Scavenging flow patterns in two-stroke diesel engines (cross-flow, loop, uniflow, return-flow) • The relative position of intake (scavenge) ports and exhaust ports/valves in the cylinder • How gas moves from intake to exhaust in a slow-speed two-stroke marine diesel

💭 Think About

• Visualize a cylinder in cross-section: if fresh air comes in one side and leaves on the opposite side at about the same level, what kind of flow path does that suggest? • Which scavenging system typically uses ports on opposite sides of the liner versus ports at one end and valves at the other end? • Think about which pattern gives a more or less straight-through path versus a looping or returning path inside the cylinder.

✅ Before You Answer

• Identify where scavenge air enters and where exhaust leaves in each named scavenging system • Verify which pattern uses exhaust valves in the cylinder head rather than exhaust ports in the liner • Confirm which system produces a looping flow within the cylinder versus a more direct path from one side to the other.