April 2010. Efficiency tests of the new Innas variable floating cup pump have just been completed. Experts at Eindhoven Technical University tested the new variable pump at different operating points. The variable pump proved to have excellent part load efficiency. The total efficiency of the 28 [cm3] type variable pump in case of full displacement shows high values in a wide band of the operating points, up to 95%.
At decreasing swash angles, the efficiencies also decrease, but only very gradually. This can be explained from the fact that in this new variable pump design there are no pressure dependent contact forces between the pistons and the ‘cups’ in which they run. Thus, an important source of friction as it appears in the more conventional types of axial piston units, is avoided in the floating cup concept.
To request a free copy of this test report, please send us an email or fill out the order form on our 'literature' page.

April 2010. The papers "A robust hydrostatic thrust bearing for hydrostatic machines" and "IHT controlled serial hydraulic hybrid passenger cars", presented during the International Fluid Power Conference in Aachen (22-24 March 2010) can now be ordered from our website.
Please fill out the order form on our 'literature' page and we will send you the papers free of charge.

December 2009. The Innas Hydraulic Hybrid (HyDrid) has been chosen to be one of the top products of the year in SAE's Off Highway Engineering (SOHE) magazine. In the November/December 2009 issue of SOHE editors highlight some of 2009's top offerings from the industry's component and system suppliers that were most popular among online readers of SOHE (www.offhighway-online.org). The Hydrid drivetrain technology is among the 20 best.

October, 2009. On the new webpage Electric hydrid the answer can be found to a question frequently asked: Is the HyDrid concept competing with the electric vehicle technology? In our view, the HyDrid transmission does not exclude the electric battery. On the contrary, it facilitates the introduction of a base load electric system which can now be much smaller than of current hybrid electric vehicles. The combination of a hydraulic transmission and a 'leaner' electromotor and smaller batteries offers the best of both worlds.

May, 2009. ATZ (Automobiltechnische Zeitschrift) of May 2009 presents the article 'Low-emission Hydraulic Hybrid for Passenger Cars'. Innas has written this article in cooperation with IFAS, the Institute for Fluid Power Drives and Controls at RWTH Aachen technical University. The mechanical drive of a passenger car has been substituted by a series hydraulic transmission. This new Hydrid power train reduces the fuel consumption of a medium-sized cars by 50%. The CO2 emissions are reduced to 82 g/km, a level far below the EU-limit for the year 2012 (120 g/km). A pdf of this technical paper in the German or English language can be ordered from Innas. Please select literature for a free of charge copy.

March, 2009. An energy reduction of 50% and more is possible with the application of a Hydrid drive in forklift trucks. This is one of the results that Martin Inderelst and Prof. Hubertus Murrenhoff of IFAS, RWTH Aachen (Germany) and Peter Achten and Georges Vael of Innas presented in their paper 'HyDrid Antriebe für Gabelstapler' (HyDrid Drives for Forklift trucks) for the 2. Fachtagung of VDMA and Karlsruhe University, on February 18th. Vael presented the results of a study that Innas performed in co-operation with the IFAS of Aachen Technical University.

A pdf of this technical paper in the German language can be ordered from Innas. Please select literature for a free of charge copy.

October, 2008. The brochure on the Innas HyDrid concept can be downloaded as a pdf document. Please click here for your copy.