GERO Rotary Pump

Pump Description and Characteristics

The GERO pump is a pure rotary positive displacement pump that has been designed as a high pressure liquid, or conversely, as a vacuum pump. A small prototype GERO pump with rotors made of 316-S steel with a body made of aluminum has been extensively tested at discharge pressures of up to 1000 kPa and rotational speeds of up to 1500 rpm. Short experimental runs have been made at 4500 rpm (about 2300 kPa). The GERO pump has the smallest size/flow rate ratio of any existing pump. Because of the balanced purely rotational design of the pump, it is very quiet and almost completely vibration free.

Design Features

• High delivery pressure
• High flow/weight ratio
• Quiet operation: because of completely balanced rotary nature

Output pressures can easily be changed by changing the angle of the outer ring.

Technical Advantages

Economic Advantages

1. Power weight ratio advantage which means less materials and lower manufacturing cost.
2. The GERO pump is physically smaller than pumps of same pressure and flow rate by about 25%.

Applications

Potential applications for the GERO pump include: hydraulic machinery, automobiles and aircraft, as a pressure intensifier - either as a first stage or final stage depending on the final pressure and as a primary vacuum pump. Potential applications include: supplying hydraulic lines of brake systems, water jets for dirt or paint removal, supply pump for high pressure intensifiers, etc.