Neptunus transmission features three axles, which serve as inputs or outputs - depending on the application. In the typical layout the transmission has one input and two outputs.

 

If the transmission is in vehicle use, the combustion engine is connected to the single input and the second output to the differential. The other output is connected to control device, which can be any actuator which absorbs energy. Typically this device is either an electrical motor or hydraulic pump.

The energy which is absorbed by the control device is fed back to the system with an electric motor or a hydraulic pump.

The Neptunus Transmission features several advantages:

• The Neptunus Transmission provides for an infinitely variable ratio between input and output shafts.

• Through optimizing the transmission internal gear ratio for each application maximum overall efficiency can be achieved as power is mainly transmitted mechanically over conventional gears.

• In a vehicle application smoothness of operation is unsurpassed through the whole range of transmission ratio.

• No additional clutch or torque converter is needed to provide a smooth starting.

• Also changing into reverse happens without any jolts.

• Manufacturing cost is low as the Neptunus Transmission is based on conventional gears.

• The Neptunus Transmission is very compact and space saving in design.

• Using the Neptunus Transmission in conjunction with a combustion engine very good overall performance and fuel consumption can be obtained as the engine performance can be optimized.

• The transmission ratio control circuit can be hydraulic (pumps and motors) or electric (generators and motors). In both cases secondary output power in the control circuit can be fed back to boost the main output thus improving the overall transmission efficiency.

• A hybrid arrangement with on-line batteries can be easily achieved as a variation of the electric control circuit.