Bloque de transmisi energi Parker untuk teknologi penerbangan.

PTU PARKER ENERGY TRANSMISSION BLOCK

The energy transmission block (PTU) is a device used to transfer hydraulic energy from one system to another without exchanging fluid between these systems. The PTU consists of two separate but connected axial piston rotating groups, with a common cardan shaft and mounting adapter. The PTU mechanically connects two hydraulic systems so that when hydraulic pressure from the control system is activated, it controls the hydraulic motor, which then transfers rotational power through the common shaft to the hydraulic pump, which in turn converts the rotational energy back into hydraulic pressure for system two.

The motor side is slightly larger in displacement than the pump side to compensate for mechanical losses (breakthrough characteristics) inside the device while maintaining pressure in the system. The pump side includes a drain port for internal leakage, cooling, and idle bypass back to the reservoir. The idle bypass flow allows the PTU to operate smoothly and continuously at any consumption, from zero to nominal. When the idle bypass flow is not properly installed according to the design, the PTU may operate intermittently during low flow conditions and cause audible noise throughout the aircraft.

The simplest and most common configuration of the PTU used in aircraft today consists of two rotating rotating groups with constant displacement that rotate only in one direction, thereby transferring power only in one direction. In other Parker Aerospace applications, rotating groups with variable displacement are used and operate in two directions, providing the ability to transfer power in any direction. These devices are significantly more complex, requiring complex hydro-mechanical control elements to ensure proper operation.

APPLICATIONS:

Parker Aerospace PTU can be found in various commercial and military aircraft, including Embraer 170/190, Bombardier CRJ-700/900, COMAC ARJ-21, Mitsubishi Regional Jet, Bombardier C Series, Boeing 737, Gulfstream business jets, plus Boeing C-17 and KC-10.

FEATURES:

• Minimized weight and envelope

• Low noise level

ADDITIONAL OPTIONS:

• Bi-directional design option

• Variable displacement option

• Compatible with all major hydraulic fluids (phosphate ester, hydrocarbon)

• Can be supplied with isolating mounts to minimize vibration transmission to the structure

• Can be equipped with a pump outlet attenuator to minimize pressure pulsation

• Can be supplied with a PTU selector valve and priority valve when integrated into Parker Aerospace systems

PERFORMANCE CHARACTERISTICS

DISTRIBUTION from 0.20 to 2.4 CIPR

OUTPUT TECHNICAL CHARACTERISTICS From 4 to 20 GPM

PRESSURE from 1500 to 5000 PSI

WEIGHT (LBS) from 8 to 52 pounds

TEMPERATURE RANGE (F) -65 ° F to 225 ° F at the inlet

Our company does not sell used aviation hydraulics. We sell absolutely NEW high-quality aviation hydraulics. Our products are protected by quality certificates and come with a warranty. By purchasing a new product, you ensure the long-term operation of the hydraulic system. No used hydraulic equipment can be in operation longer than new equipment. Therefore, by purchasing new aviation hydraulics, you get a product with a warranty period and confidence in the operability of the hydraulic system tomorrow!