28
PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps • Hydraulic Pump Types

PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Embed Size (px)

Citation preview

Page 1: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

PowerPoint® PresentationPowerPoint® Presentation

Chapter 4Chapter 4Hydraulic PumpsHydraulic Pumps

Hydraulic Pumps • Hydraulic Pump Types

Hydraulic Pumps • Hydraulic Pump Types

Page 2: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

The two main types of hydraulic pumps are positive-displacement pumps and dynamic pumps. The two main types of hydraulic pumps are positive-displacement pumps and dynamic pumps.

Page 3: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

The two main types of prime movers used in fluid power systems are electric motors or internal combustion engines.

The two main types of prime movers used in fluid power systems are electric motors or internal combustion engines.

Page 4: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Gallons per minute is the number of gallons a pump can force into the system every minute and thus the amount of fluid flow that pump can produce.

Gallons per minute is the number of gallons a pump can force into the system every minute and thus the amount of fluid flow that pump can produce.

Page 5: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Volumetric efficiency is the relationship between actual and theoretical fluid flow of the pump.Volumetric efficiency is the relationship between actual and theoretical fluid flow of the pump.

Page 6: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A typical application for a positive-displacement pump includes the fluid power systems on a hydraulic production press.

A typical application for a positive-displacement pump includes the fluid power systems on a hydraulic production press.

Page 7: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Fixed-displacement pumps are available in various sizes with different displacement ratings.

Fixed-displacement pumps are available in various sizes with different displacement ratings.

Page 8: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Typical applications for variable-displacement pumps include systems that operate with varied system fluid flow, such as industrial robots.

Typical applications for variable-displacement pumps include systems that operate with varied system fluid flow, such as industrial robots.

Page 9: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

All positive-displacement pumps follow the same basic operational steps to create fluid flow.

All positive-displacement pumps follow the same basic operational steps to create fluid flow.

Page 10: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A gear pump consists of various types of meshing gears.

A gear pump consists of various types of meshing gears.

Page 11: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

An external gear pump consists of meshing gears that form a seal with the pump housing and operates similar to the four basic steps of a positive-displacement pump.

An external gear pump consists of meshing gears that form a seal with the pump housing and operates similar to the four basic steps of a positive-displacement pump.

Page 12: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A lobe pump has two external-driven gears and operates similar to an external gear pump.A lobe pump has two external-driven gears and operates similar to an external gear pump.

Page 13: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

An internal gear pump consists of a small external drive gear mounted inside a large internal gear.

An internal gear pump consists of a small external drive gear mounted inside a large internal gear.

Page 14: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Gerotor pump operation is similar to internal gear pump operation, with the inner rotor having one less gear tooth than the outer rotor.

Gerotor pump operation is similar to internal gear pump operation, with the inner rotor having one less gear tooth than the outer rotor.

Page 15: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Gear pump manufacturers typically provide assembly diagrams for each specific pump. Gear pump manufacturers typically provide assembly diagrams for each specific pump.

Page 16: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A vane pump contains vanes in an offset rotor and rotates the rotor to produce the flow of hydraulic fluid.

A vane pump contains vanes in an offset rotor and rotates the rotor to produce the flow of hydraulic fluid.

Page 17: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Unbalanced vane pumps operate similar to the four basic steps of a positive-displacement pump.

Unbalanced vane pumps operate similar to the four basic steps of a positive-displacement pump.

Page 18: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A variable-displacement, pressure-compensated vane pump is a pump that automatically adjusts the amount of volume it displaces per rotation by centering the rotor when the pressure in the system starts to build.

A variable-displacement, pressure-compensated vane pump is a pump that automatically adjusts the amount of volume it displaces per rotation by centering the rotor when the pressure in the system starts to build.

Page 19: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A balanced vane pump has two inlets and outlets at opposite sides of the pump and contains an elliptical cam ring.

A balanced vane pump has two inlets and outlets at opposite sides of the pump and contains an elliptical cam ring.

Page 20: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A cartridge assembly is located in a vane pump and houses the vanes, rotor, and cam ring, which are all placed between two plates.

A cartridge assembly is located in a vane pump and houses the vanes, rotor, and cam ring, which are all placed between two plates.

Page 21: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Vane pump manufacturers typically provide assembly diagrams for each specific pump.Vane pump manufacturers typically provide assembly diagrams for each specific pump.

Page 22: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Axial piston pumps consist of a number of pistons, a piston block, piston shoes, a swash plate, and a shaft and operate with four basic steps.

Axial piston pumps consist of a number of pistons, a piston block, piston shoes, a swash plate, and a shaft and operate with four basic steps.

Page 23: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

A variable-displacement piston pump has a swash plate at an angle that can be varied, thereby varying the amount of fluid flow (gpm).

A variable-displacement piston pump has a swash plate at an angle that can be varied, thereby varying the amount of fluid flow (gpm).

Page 24: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Bent-axis piston pumps operate in the same manner as an axial piston pump, but rather than the swash plate being at an angle, the pistons and piston block are at an angle.

Bent-axis piston pumps operate in the same manner as an axial piston pump, but rather than the swash plate being at an angle, the pistons and piston block are at an angle.

Page 25: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Radial piston pumps consist of reciprocating pistons in cylinders and can be classified as cam or rotating piston pumps.

Radial piston pumps consist of reciprocating pistons in cylinders and can be classified as cam or rotating piston pumps.

Page 26: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Cavitation occurs as gas bubbles expand in a vacuum and implode when entering a pressurized area.Cavitation occurs as gas bubbles expand in a vacuum and implode when entering a pressurized area.

Page 27: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Hydraulic pumps are available in both double and triple pump designsHydraulic pumps are available in both double and triple pump designs

Page 28: PowerPoint ® Presentation Chapter 4 Hydraulic Pumps Hydraulic Pumps Hydraulic Pump Types

Chapter 4 — Hydraulic PumpsChapter 4 — Hydraulic Pumps

Hydraulic pump schematic symbols are used to determine general information about the type of pump used in a system.

Hydraulic pump schematic symbols are used to determine general information about the type of pump used in a system.