Rotary Trochoidal Gear Pump ( Series DRT/DRTBP )

Working Principle:

• Only two rotating parts having principle of gear within gear but without crescent.
• The inner rotor is located off-center and both rotors rotate.
• The geometry of the two rotors partitions the volume between them into N different dynamically-changing volumes. During the assembly's rotation cycle, each of these volumes changes continuously, so any given volume first increases, and then decreases.
• An increase creates a vacuum. This vacuum creates suction, and hence, this part of the cycle is where the intake is located. As a volume decreases compression occurs.
• The Flow of liquid is axial through the elements.
• In built features of speed reduction as pinion is rotated at prime mover speed and outer gear rotates at lower speed.

Salient Features:

• Smooth pulsation free flow with low noise level.
• Choice of mechanical seal or oil seal.
• Single short shaft well supported at both the ends with self lubricating bearings.
• Precision machined components to guarantee high volumetric efficiency.
• Self priming pump with high suction capabilities.
• Compact pump as compared to other type of gear pumps.

Typical Applications:

• Transfer and Barrel unloading.
• Pressure lubricating & cooling of bearings & gear boxes.
• Pumping, heating, cooling and filtering units.
• Pre-lubrication of components of machinery before starting.

Cost Comparison:

• Very economical and costs fraction of screw pumps
• Power consumption is less than conventional pumps. Hence economical in operation.