When does the effective pump stroke for a scrolled plunger end?

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Understand the Problem

The question is asking about the specific point at which the effective pump stroke of a scrolled plunger ends. It provides multiple choice answers related to the functioning of a fuel injector system.

Answer

When the scroll uncovers the spill port.

The effective pump stroke for a scrolled plunger ends when the scroll uncovers the spill port.

Answer for screen readers

The effective pump stroke for a scrolled plunger ends when the scroll uncovers the spill port.

More Information

In a scroll-type plunger system, the effective stroke is defined by the movement of the plunger from when it covers the spill port until it uncovers it.

Tips

A common mistake is to confuse the effective stroke with the full stroke of the plunger. Pay attention to the role of the spill port.

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