Tag: Gear Pump

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Exploring the Essential Components: Understanding Cessna Hydraulic Pump Parts

Cessna Hydraulic Pump

Cessna hydraulic pumps are used in aircraft, ground support equipment at airports (such as vehicles used for towing aircraft), material handling systems, and boat steering systems. They are durable, low maintenance, and can operate in the harshest work environments.

Here are the main components of a Cessna hydraulic pump.

Pump Housing

It encloses and supports the internal components of the pump. Pump housing is usually made of a durable metal that can withstand high pressures exerted during operation.

Inlet and Outlet Ports

These are the pathways through which hydraulic fluid enters and leaves the pump. The inlet port draws hydraulic fluid from the reservoir into the pump. Pressurized fluid is forced out through the outlet port.

Gears or Pistons

A gear pump utilizes a set of interlocking gears, whereas a piston pump uses a series of pistons to pressurize hydraulic fluid.

Pressure Relief Valve

To prevent damage, keep the pressure within the specified range. When the pressure gets too high, the pressure relief valve opens to release some of the hydraulic fluid back into the reservoir or a bypass line.

Pump Drive Gear

This connects the pump to the aircraft’s engine or electric motor, transferring mechanical energy (required to move internal pump components) to the hydraulic pump.

Seals and Gaskets

These prevent leaks and maintain the optimum pressure. They seal the gaps between the parts of the pump.

Bearings

They help reduce friction between pump parts and wear and tear on the pump.

Control Valves

Some hydraulic pumps have control valves that help regulate the flow of hydraulic fluid.

Tips to Maintain Cessna Hydraulic Pumps

Cessna hydraulic pump maintenance is a matter of necessity rather than choice. Regular maintenance prevents costly problems and keeps your Cessna hydraulic pump working at its peak efficiency.

Here are some tips to help you keep your Cessna hydraulic pump in good working order.

Perform Regular Inspections

Periodically inspect hoses, fittings, and connections for signs of leaks and damage. Fix any problems immediately to prevent them from snowballing into major issues.

Maintain Proper Hydraulic Fluid Levels

Periodically check hydraulic fluid levels and top up if required. When replacing hydraulic fluid, follow the manufacturer’s instructions. Use the type of fluid suggested by the manufacturer.

Clean the System

Dirt and debris can contaminate hydraulic fluid. Cleaning your Cessna hydraulic pump regularly is a great way to prevent contamination. Follow these steps to clean your pump.

  • Turn off and depressurize the pump.
  • Drain hydraulic fluid and wipe down the external surface with a clean cloth.
  • Remove and clean/replace filters.
  • Clean internal parts with a solvent.
  • Flush the system with a flushing fluid to remove the remaining contaminants.
  • Reassemble the pump and add hydraulic fluid.

Remove Air Pockets  

If air gets trapped within your hydraulic pump, it can affect the pump’s efficiency. Bleed your pump regularly to remove air pockets.

Hydraulic.net has a large collection of Cessna hydraulic pumps. No matter how complex the intended application is, we will have the right hydraulic pump for it. To discuss your requirements with our team, call (630) 543-7630.

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What is a Gear Pump?

Gear Pump

A gear pump is a type of positive displacement pump. It consists of two interlocking meshed gears to pump fluids. Gear pumps are used in several industries, including chemical and petrochemical industries, to handle various types of oils and viscous liquids. They feature a simple and compact design, are durable, and can pump liquids at high pressures.

How Does a Gear Pump Work?

As the gears of a pump rotate, the fluid on the inlet side gets trapped in their teeth and the walls of the casing. The trapped fluid is then moved to the outlet. The meshing displaces the fluid, forcing it out of the discharge port. A suction is created at the inlet, and pressure is generated at the outlet to effectively move the fluid through the pump. Close clearances between the gears and casing prevent the fluid from leaking back from the discharge side to the suction side.

Types of Gear Pumps

Here are some popular types of gear pumps.

External Gear Pumps

An external gear pump uses two gear pumps supported by separate shafts. Usually, one gear is driven by a motor, and it drives the other motor. In some cases, both shafts are driven by motors. There are two types of external gear pumps – helical gear pumps and herringbone gear pumps. As the name suggests, a helical gear pump has helical gears and is quieter than spur gears. Herringbone gear pumps utilize two sets of helical gears. Their unique design (there is no gap between the sets) helps reduce noise and pulsation.

Internal Gear Pumps

An internal gear pump consists of a large external gear or rotor and a smaller internal gear or idler. One of the most widely used types of internal gear pump is the gerotor pump. The rotors of a gerotor pump rotate to create an expanding pocket. As the pocket contracts, fluid is drawn in through the inlet and forced out through the outlet.

How Efficient Are Gear Pumps?

Gear pumps are known for their ability to maintain a consistent flow rate. Their volumetric efficiency usually ranges from 90 to 98 per cent. The design of a gear pump minimizes the internal slippage of fluid. Gear pumps also have a high mechanical efficiency (usually between 85% and 95%). The higher the mechanical efficiency of a Rexroth hydraulic pump, the lesser the amount of energy lost due to friction or other mechanical factors during the conversion of mechanical energy into hydraulic energy. The overall efficiency (a product of volumetric efficiency and mechanical efficiency) of gear pumps ranges from 70% to 90%.

Applications

Gear pumps are used in:

  • Chemical, petrochemical, and manufacturing industries to pump a wide variety of viscous and corrosive chemicals, liquids, and petrochemicals.
  • The oil and gas industry to move fuel, crude oil, and lubricating oils.
  • The polymer industry to pump high-viscosity fluids.

Hydraulic.net is a renowned supplier of hydraulic pumps. Manufactured in a state-of-the-art facility, our pumps meet high quality standards. To learn more, call (630) 543-7630.