ETV Motors, Ltd.

ETV Motors, Ltd.

Suite 200
3 Abba Eban Boulevard
Herzliya 46120 Israel

Phone +972-9-951-7277
Fax +972-2-591-6017About

Founded in 2008, the exclusive focus of ETV Motors Ltd is the research, development and commercialization of critical EV components and their integration into turbine-powered Range-Extended Electric Vehicles (REEVs).

In the third quarter of 2008, ETVM raised a milestone-driven $12M investment led by The Quercus Trust. New York-based 21 Ventures, LLC, a venture capital firm concentrating on the technologies set to dominate the 21st century, is a co-investor.

ETV Motors is a private company based in Herzliya, Israel with research and test facilities at several additional locations. There are presently over 25 researchers and engineers involved in the activity.

Technology

ETV Motors Ltd is developing the enabling technologies that will facilitate the future generations of Range-Extended Electric Vehicles (REEVs).

These propulsion platforms will have unparalleled energy efficiencies and ultra-low emission signatures.

The company is engaged in three complementary activities:

Turbine Charger Advanced Battery Test Vehicle
     

Microturbines produce both heat and electricity on a relatively small scale by means of combustion. In general, they offer advantages compared with other technologies for small scale power generation.

Those advantages over reciprocating engine generators include: a small number of moving parts; compact size; light weight; greater efficiency; lower emissions; and the ability to operate with a range of fuels (eg CNG and bio-fuels). Waste heat recovery may be employed with these systems to reach very high efficiencies.

The majority of a microturbine’s waste heat is contained in its relatively high-temperature exhaust. The combined thermal electrical efficiency of microturbines in cogeneration applications where exhaust heat is utilized reach over 80%.

Turbines offer a high-powered engine in a very small and light package. This is facilitated in part due to the fact that there is no requirement for either water-cooling or exhausts catalytic conversion. However they have a time lag and provide poor fuel efficiencies at low speeds if integrated into conventional propulsion drivetrains.

REEV hybrids utilizing turbines as the on board charger will provide all the advantages as the battery will address the variable power requirements and the turbine will be operating at its “sweet spot”.

In simulation exercises, we have found that the fuel costs for ICE-powered REEVs in typical urban environments will be up to 50% more expensive than those powered by micro-turbine on-board chargers.

ETV Motors has assembled a world class team of microturbine engineers to develop its high efficiency dual power microturbine on board charger. With a track record in stationary power turbines, large and small jet engines and advanced heat exchangers, we are confident that our aggressive performance goals will be achieved in a timely and cost effective manner.

The ETV patent-pending mictroturbine design is expected to outperform the state-of the art microturbines for the following reasons:

  • The ETV mictroturbine will operate on RQL (Rich-Quench-Lean) principles and will have the unique property of achieving optimum efficiency at two operating points. This “dual mode” property will provide a number of degrees of freedom when matching the microturbine to various drive cycles and vehicle categories.
  • Proprietary valving and duct design results in minimal pressure drops
  • Advanced heat exchanger/recuperator resulting in ultra-high thermal efficiencies (>90%) with low pressure drops. (The combined hot and cold pressure drops will be less than 8.5% of maximum cycle pressure)
  • Advanced stator/rotor sealing techniques, resulting in high adiabatic efficiencies.
    Implementation of ceramic regenerative heat exchanger and turbine enabling operation at higher turbine inlet temperatures.

The characteristics of the prototype and production ETV microturbines are presented in the following table.

P1 P2 Production
Power kW 12/45 13/48 20/60
Efficiency % 37-38 38-44 45-50
Weight Kg 120 100-110 100-120
Rotational Speed RPM 80,700 80,700 TBD
Turbine Inlet Temp 0C 975 1,050 1,250-1,350
Recuperator Advanced Metal Ceramic Ceramic
Turbine Metal Metal Ceramic

The P1 turbine, with an efficiency that outperforms the present state of the art by approximately 30%, will be fully functional in Q2 2010.

Combustion caption here

 

 
 
 

 

 

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