Mazda RX-8 Hydrogen RE

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
Overview
ManufacturerMazda
Also calledMazda RX-8 HRE
Production2003
Body and chassis
RelatedMazda RX-8
Powertrain
Engine1.3 L, 2 rotor Renesis Wankel Rotary engine
Transmission5-speed manual
Range100 km (62 mi) (Hydrogen mode)

Specifications
Mazda RX-8 Hydrogen RE rear

The hydrogen tank is made of aluminum and carbon fibre and has a capacity of 110 liters at 350 bar stores up to 2.4 kilograms of hydrogen and is fitted in addition to the 61 liter gasoline tank. The car can be switched from gasoline to hydrogen mode using a button in the cabin.[1] The Hydrogen tank takes up most of the RX-8s trunk space and the all the hydrogen components weigh in at 187 lbs in total. Running in hydrogen mode, it produces no emissions other than water vapour and has a range of around 100 km (62 mi).[2] In 2005, Mazda obtained street approval for this vehicle. The following year, the first vehicles were leased to customers in Idemitsu and Iwatani at a price of 420,000 JPY per month.[3] In November 2007, Mazda announced the delivery of 30 RX-8 HRE to the Norwegian hydrogen project Hynor.[4]

The bivalent RENESIS wankel rotary engine has the following data:

Engine twin-rotor Wankel engine
Chamber volume 2 x 654 cc (equivalent Displacement: 1,308 cc)
Mode Hydrogen Gasoline
Performance 80 kW (107 hp, 109 PS) 154 kW (206 hp, 210 PS)
Maximum torque 140 Nm (103 lb ft) at 5.000 U/min 222 Nm (164 lb ft) at 5.000 U/min
Maximum speed 170 km/h (106 mph) (H2-operation)
Acceleration from 0–100 km/h (0-62 mph). 10 seconds

See also

References
  1. "Mazda RX-8 Hydrogen Re and Premacy Hybrid RE - Motor Trend". Motor Trend. 2009-09-11. Retrieved 2018-04-23.
  2. "Mazda RX-8 Hydrogen RE (2007) review". CAR Magazine. Retrieved 2018-04-23.
  3. "Mazda Starts Leasing Rotary Hydrogen Vehicles". Mazda Motor Corporation. 15 February 2006. Retrieved 18 July 2016.
  4. "Norway to trial Mazda RX-8 Hydrogen RE". newatlas.com.
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