OQAPA - Pumps and Compressors

A better pump:

Less inertia. Reciprocal pumps reverse the flow while they pump, which is a severe inertia, turbulence and heat generation limitation for achieving high RPM.
Because the flow is peripheral and nearly unidirectional, the Quasiturbine is much less sensitive to flow reversal and heat generation, which improves its efficiency.

Check valves. Check valves are generally preferable only when used with a compressible fluid.
A Quasiturbine may work as well without check valves.
Vibration free.
High flow rate. In pump mode 2 circuits are used, therefore each blade of the Quasiturbine expels its chamber volume twice per rotation.
Since there are 4 blades, the flow is equivalent to 8 chambers per rotation.
Low RPM. A Quasiturbine is designed to rotate between 0 and a few thousand RPM. Wear at these rotational rates should be moderate if acceleration and flow modulation are also controlled.
Efficient at any flow rate. Contrary to aerodynamic or hydrodynamic pumps which have an efficiency curve limited to a rather narrow range, a Quasiturbine pump will maintain a reasonably high efficiency over a wide range of rotational rates.
Could operate as a Check Valve. At zero RPM, a Quasiturbine pump could completely cut off the flow.
High pressure output. Because of its robustness and very high geometric compression ratio, a Quasiturbine pump could deliver a very high pressure output.

Quasiturbine as a potential replacement for:

In various applications, including but not necessarily limited to: