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The Mazda RX-8 Hydrogen RE is a 2003 bi-fuel version of the RX-8 sports car, in which the twin-rotor wankel rotary engine is configured to run on either hydrogen or gasoline. This is the fifth Mazda vehicle to be fitted with a hydrogen wankel rotary engine.
Mazda RX-8 Hydrogen RE. At the 2004 North American International Auto Show, Mazda unveiled the RX-8 Hydrogen RE concept car, designed to run on either hydrogen or gasoline. In February 2006, Mazda announced that it would start leasing a dual fuel RX-8 to commercial customers in Japan, and in March, 2006 announced its first two customers ...
1991 – Mazda HR-X hydrogen Rotary; 1993 – Mazda HR-X2 hydrogen Rotary; 1993 – Mazda MX-5 Miata hydrogen Rotary; 1995 – Mazda Capella, first public street test of the hydrogen Rotary engine; 2003 – Mazda RX-8 Hydrogen RE hydrogen-gasoline hybrid Rotary; 2005 – Mazda Premacy Hydrogen RE Hybrid; 2007 – Mazda Hydrogen RE Plug in Hybrid
2003–2012 RX-8 sports car; 2003 RX-8 Hydrogen RE bi-fuel sports car; 2004–2015 Verisa subcompact car; 2006–2024 CX-9 SUV; 2007–2012 CX-7 crossover SUV; 2008–2018 Biante minivan; 2013–2017 VX-1 mini MPV; 2016–2024 CX-4 crossover SUV
The HyNor-project has tested several different hydrogen vehicles: 15 retrofitted Toyota Prius hydrogen internal combustion engine (ICE) vehicles (2007–2012) 4 Mazda RX-8 Hydrogen RE dual fuel hydrogen/gasoline ICE vehicles (2009–2012) 10 Mercedes-Benz B-class F-CELL (2011–2014) 5 Think City hydrogen cars; 2 Hyundai ix35 FCEVs
The car was followed by other models, refining their technology over the following decade until the Mazda RX-8 Hydrogen RE of 2003. This car was the first hydrogen-powered rotary-engined vehicle to be offered on a commercial lease in Japan and was used in the Norwegian HyNor project to demonstrate the viability of hydrogen as a vehicle fuel. [2]
If well optimized, slightly higher efficiencies can be achieved. The comparison with a hydrogen fuel cell is interesting. The fuel cell has a high efficiency peak at low load, while at high load the efficiency drops. The hydrogen combustion engine has a peak at high load and can achieve similar efficiency levels as a hydrogen fuel cell. [34]
After Mazda RX-8 production ceased in 2013, Mazda has carried on with testing prototypes to re-introduce the rotary as part of the "SkyActiv" lineup, dubbed SkyActiv R, displacing 1600 cc and featuring direct injection, laser ignition and forced induction. Wankel family – 1.0 L-2.0 L Wankel (1967–present) 10A – 1.0 L (1967–1973)