Concept of PSPO

It has taken Orient years of dedicated R & D to create and perfect the concept of PSPO -- the latest advancement in Air Supply Technology. To arrive at PSPO, our R&D specialists had to unlearn everything about conventional fan making. They went back to their drawing boards and studied every aspect in microscopic detail - the aerodynamic, the principles of electro mechanics, the theory of air displacement- the whole works. This enabled them to arrive at a formula which made it possible to deliver MORE AIR over the LARGER AREA at the LESSER ELECTRICITY COST.

The Principle of PSPO
The key operational principle behind PSPO is based on gradual observations of incremental air displacement with minute changes of either of the two twist angles along with changes of lift angles in innumerable combinations to arrive at the optimum design. But increase in air displacement has to be matched by the efficiency of the motor.Orient engineers developed an advanced new motor that achieved the correct balance with the blade design. It is this factor which is at the core of the latest "Air Supply Technology".

What do the initials PSPO stand for?
They stand for the Peak Speed Performance Output.
It is sum total of these factors that delivers the promise.

More air everywhere

SIGNIFICANT AIR SPREAD AREA : Area covered up to the extent one can feel the air velocity, as equivalent to moving through 1/2 kilometer every hour, at a height of 150 cm. below the plane of fan blades.

To test this hypothesis, our design engineers developed a prototype. After extensive tests and further improvements, the hypothesis became fact when the prototype proved successful. The breakthrough has been achieved. To manufacture the prototype on a commercial scale, our factory had to be extensively restructured. New moulds and dies had to be created. Alloy compositions were changed. The work force had to re-oriented. An amalgam of all these factors is behind the creation of PSPO.

Technical Diagram

Advantages of PSPO

RB DESIGN
For the first time in the history of fan engineering, our designers came out with a 'Ribbed Blade' design - a blade with a recessed central rib. This new design cuts air resistance for noiseless and uniform air dispersal.
The design provided added structural strength to the blade, preventing distortion of the aerodynamic design during normal functioning and while cleaning in assembled condition.

DTA BLADE
A further innovation was to split the twist in the carrier with that on the blade.The combination created the double twist angle (DTA) which led to optimum design throughout the studies of incremental variations. Fans normally develop a "tunnel" corresponding to its sweep and the breeze thus generated does not reach a person outside its periphery.
The DTA blades, coupled with an increased lift angle break through the air tunnel and disperse air to every corner of the room.

MAXI-TORQUE MOTOR
Orient designers did not stop at the blades and the carrier. Through a process of backward integration they have brought many other improvements which cumulatively add up to a lot. For the core of the fan - the rotor, the stator assembly, electrical stampings - were fabricated from energy efficient electrical steel. The end result is improved torque, which in turn leads to better utilization of power and lower electricity bills. Every optimum blade loading has been matched with a selective load condition of the motor during its designing.

AUTO-SPEED RETENTION
Further innovation in the motor created the anti fluctuation speed-voltage charateristics. This acts as a stabiliser in the fan, ensuring sustained air flow even under fluctuating voltage conditions.