🔍 Key Concepts

• In an axial piston pump, the discharge capacity (flow per revolution) depends mainly on the piston stroke and number/size of pistons. • The piston stroke in this design is controlled by the angle between the drive shaft and the cylinder block/swash plate. • Look closely at the illustration: does the angle housing appear adjustable by an operator or fixed as part of the casing?

💭 Think About

• How would changing the angle between the pistons and the shaft affect the volume each piston displaces in one revolution? • From the parts shown (angle housing, universal link, cylinder block, driveshaft), which component’s geometry actually determines the maximum piston travel? • Do you see any mechanism (lever, servo piston, control collar) that would allow the operator to vary this angle while in service?

✅ Before You Answer

• Identify what sets the piston stroke length in this pump. • Verify whether the angle housing is shown as a fixed casting or a movable control part. • Eliminate options that rely on features not shown or not realistic for controlling displacement (e.g., shaft length or swapping cylinder blocks during operation).