Which of the following will occur when the...

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Question 1 of 205eccefa2bacbc34ba4d478a1

Which of the following will occur when the lower edge of the spiral, on the plunger of a jerk pump, uncovers the spill port?

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5eccefa2bacbc34ba4d478a1

Which of the following will occur when the lower edge of the spiral, on the plunger of a jerk pump, uncovers the spill port?

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🔍 Key Concepts

• Jerk pump fuel cycle – how fuel is pressurized and then released • Spill port and plunger spiral (helix) – what uncovering the port changes inside the pump • Difference between plunger motion and fuel flow/pressure

💭 Think About

• Think through what happens to the fuel pressure inside the pump barrel at the exact moment the spill port is uncovered by the spiral on the plunger. • Ask yourself: does uncovering the spill port change the plunger’s movement, or does it change what happens to the fuel around the plunger? • Consider how the pump stops injection at the end of the effective stroke – what component action actually ends fuel delivery to the injector?

✅ Before You Answer

• Verify what ‘spill port’ means in a jerk-type fuel injection pump and what it is connected to. • Clarify whether the plunger’s direction of travel depends on the spill port, or on the cam driving the plunger. • Check how uncovering the spill port affects pressure in the pumping chamber and, as a result, fuel delivery to the injector.

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Question 1 of 205eccefa2bacbc34ba4d478a1

Which of the following will occur when the lower edge of the spiral, on the plunger of a jerk pump, uncovers the spill port?

Back

Question 1 of 20

5eccefa2bacbc34ba4d478a1

Which of the following will occur when the lower edge of the spiral, on the plunger of a jerk pump, uncovers the spill port?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed