Manuals / BENDIX / Household Appliance / Air Cleaner

BENDIX SD-08-2415A manual Purge Piston, Desiccant RE-ACTIVATION Drying the Desiccant

Models: SD-08-2415A

1 28
Download 28 pages 20.92 Kb
Page 5
Image 5

 

 

 

 

DESICCANT

 

 

OIL

 

 

 

 

 

COALESCING

 

 

 

 

 

FILTER

 

 

 

 

 

PURGE

 

 

 

REAR

REMOTE

ORIFICE

 

 

DELIVERY

RESERVOIR

PURGE

REMOTE

 

 

CHECK

 

RESERVOIR

 

 

VALVE

 

PURGE

 

 

 

 

 

 

 

 

 

PORT

 

 

 

 

 

CONTROL

 

 

 

 

 

PORT

 

 

 

 

PURGE

SUPPLY

 

 

 

FRONT

CONTROL LINE

 

 

 

RESERVOIR

PORT

 

 

 

 

 

 

 

 

GOVERNOR

 

 

 

 

 

 

 

TURBO

SAFETY

DELIVERY

 

 

ENGINE CUT-OFF

VALVE

PORT

 

 

TURBO

EXHAUST

 

PURGE

 

 

 

 

 

 

 

PORT

 

VALVE

 

COMPRESSOR

 

 

 

 

 

 

 

 

FIGURE 5 - BENDIX® AD-RP™AIR DRYER SYSTEM - PURGE CYCLE

 

 

TURBO CUT-OFF VALVE (Refer to Figure 5)

The primary function of the turbo cut-off valve is to prevent loss of engine turbocharger air pressure through the Bendix® AD-RP™air dryer in systems where the compressor intake is connected to the engine turbocharger. The turbo cut-off valve also eliminates the “puffi ng” of air out the open air dryer exhaust when a naturally aspirated, single cylinder compressor is equipped with an inlet check valve. Governor unloader pressure causes the turbo cut-off valve piston to move and close. With the turbo cut-off valve piston seated (closed position), air in the discharge line and AD-RP air dryer inlet port is prevented from entering the air dryer.

PURGE PISTON

The Bendix® AD-RP™air dryer purge piston also moves in response to governor unloader pressure, causing the purge valve to open to atmosphere. Contaminants in the body sump are instantly expelled when the purge valve opens. Air — which was fl owing through the desiccant cartridge — immediately changes direction and begins to fl ow back toward the open purge valve. Oil and solid contaminants collected by the oil separator are removed by air fl owing from the desiccant

drying bed to the open purge valve.

DESICCANT RE-ACTIVATION (DRYING THE DESICCANT)

The initial decompression of the air dryer assembly lasts only a few seconds and is evidenced by an audible burst of air at the AD-RP air dryer exhaust. The actual reactivation of the desiccant drying bed begins as dry air fl ows from the purge volume through the purge orifi ce in the body and into the desiccant bed. Pressurized air from the purge volume expands after passing through the purge orifi ce; its pressure is lowered and its volume increased. The fl ow of dry air through the drying bed reactivates the desiccant material by removing the water vapor adhering to it. Generally 30 seconds minimum are required for the entire purge volume of a standard AD-RP air dryer to fl ow through the desiccant drying bed.

The delivery check valve assembly prevents air in the brake system from returning to the air dryer during the purge cycle. After the purge cycle is complete, the desiccant has been reactivated (or dried), and the air dryer is ready for the next charge cycle to begin. However, the purge valve will remain open and will not close until air brake system pressure is reduced and the governor signals the compressor to charge the system.

5

Page 4 Page 6
Page 5
Image 5
BENDIX SD-08-2415A manual Purge Piston, Desiccant RE-ACTIVATION Drying the Desiccant
Page 4 Page 6

SD-08-2415A specifications

The BENDIX SD-08-2415A is a state-of-the-art electronic control module designed to enhance the performance and safety of commercial vehicle brake systems. This innovative device is part of BENDIX's commitment to providing advanced braking technologies that meet the demands of modern transportation.

One of the main features of the SD-08-2415A is its integrated functionality, which combines multiple braking systems into a single module. This includes Anti-Lock Braking Systems (ABS), Traction Control Systems (TCS), and Electronic Stability Control (ESC). By integrating these systems, the SD-08-2415A provides improved vehicle control and ensures optimal braking performance in various driving conditions.

The technology behind the BENDIX SD-08-2415A incorporates sophisticated algorithms that help to monitor wheel speed, generating real-time data to prevent wheel lock-up during hard braking. This not only enhances safety but also increases the lifespan of brake components by minimizing wear and tear. The module features advanced diagnostics capabilities, which allows for quick troubleshooting and maintenance, ensuring that operators can keep their vehicles in peak operating condition.

In addition to its core functionalities, the SD-08-2415A features an open architecture design, allowing for seamless integration with existing vehicle systems. This design provides flexibility for manufacturers and fleet operators to customize their braking systems according to specific requirements and regulatory standards.

Another key characteristic of the SD-08-2415A is its rugged construction, which is designed to withstand harsh operational environments. The module is resistant to vibrations, moisture, and temperature fluctuations, making it reliable for use in heavy-duty applications. This durability ensures that the unit maintains consistent performance over time, even in challenging conditions.

Furthermore, the BENDIX SD-08-2415A is equipped with advanced communication protocols, enabling it to exchange data with other vehicle systems. This capability enhances overall vehicle performance and allows for real-time monitoring of braking efficiency.

In conclusion, the BENDIX SD-08-2415A stands out as a leading solution in the commercial vehicle braking industry, offering a unique combination of integrated systems, advanced technology, and robust durability. Its ability to improve safety, extend component life, and adapt to various vehicle configurations makes it an essential component for modern fleets. As the industry continues to evolve, the SD-08-2415A represents the future of vehicle braking technology, prioritizing both performance and safety.