4。9星RX-8全方位图解
- 主题发起人 可乐加冰--不冰
- 开始时间
可乐加冰--不冰
五大菜子之比老大
- 注册
- 2002-07-10
- 消息
- 2,983
- 荣誉分数
- 0
- 声望点数
- 0
The RENESIS engine, powering the Mazda RX-8 has its origins in the MSP-RE that was unveiled at the 1995 Tokyo Motor Show as the power unit for the RX-01 concept sports car. The name RENESIS was given to the engine in the 1999 iteration of the RX-EVOLV. Thereafter, RENESIS, which stands for "the rotary engine's GENESIS," was carefully prepared for production as the powerplant for the RX-8. By capitalizing on the intrinsic benefits of the RENESIS rotary engine - namely, low weight, compact size and high performance - Mazda succeeded in developing the RX-8, a wholly new four-door, four-seater, and a genuine sports car.
RENESIS is a 654 cc x two rotor engine that generates 247 HP at 8500 rpm and 159 lb. ft. maximum torque at 5500 rpm with 6 speed manual and 207 HP and 164 lb. ft. torque at 5000 rpm when equipped with automatic transmission*. RENESIS shows substantial improvement over the engine installed in the previous RX-7 in terms of fuel-efficiency and emissions.
A key technology of RENESIS is its side exhaust port configuration, with the exhaust ports relocated to the rotary chamber side housing, where the intake ports are also located.
Other key technologies resulting in improved performance over the previous rotary engine include:
- Synthetic intake system for variable valves: the RENESIS engine has almost 30%
more cross-sectional intake port area than the previous engine. Additionally,
the intake port close timing has been extended, resulting in increased
charging volume and more power.
- Variable fresh air duct: in addition to a large, low resistance air cleaner,
a shutter valve opens to shorten the intake manifold upstream of the air cleaner.
The shutter valve works in tandem with the variable intake valve to boost torque
and power at high engine speeds. The fresh air duct is partially inserted into
the air cleaner and enables an optimal length intake system through opening
and closing of the valve.
- Lightweight rotor: 11% reduction in rotor weight and 20% reduction in flywheel
weight compared with the previous 13B REW engine
- Three injectors per rotor
- Long-span engine mount (Long members extending laterally from the rotors' center
of rotation suppress engine vibration and allow greater direct transmission
of power to the drivetrain
- Dynamically balanced rotors, resulting in low vibration and distinctive rotary engine
sound
- More stable and efficient fuel combustion achieved by side exhaust port locationallowing elimination of port overlap and retained exhaust gasses
- Newly designed seals: a cut-off seal located between the rotor's dual oil seals
and side seal eliminates carry-over of exhaust gas to the next intake cycle.
RENESIS is a 654 cc x two rotor engine that generates 247 HP at 8500 rpm and 159 lb. ft. maximum torque at 5500 rpm with 6 speed manual and 207 HP and 164 lb. ft. torque at 5000 rpm when equipped with automatic transmission*. RENESIS shows substantial improvement over the engine installed in the previous RX-7 in terms of fuel-efficiency and emissions.
A key technology of RENESIS is its side exhaust port configuration, with the exhaust ports relocated to the rotary chamber side housing, where the intake ports are also located.
Other key technologies resulting in improved performance over the previous rotary engine include:
- Synthetic intake system for variable valves: the RENESIS engine has almost 30%
more cross-sectional intake port area than the previous engine. Additionally,
the intake port close timing has been extended, resulting in increased
charging volume and more power.
- Variable fresh air duct: in addition to a large, low resistance air cleaner,
a shutter valve opens to shorten the intake manifold upstream of the air cleaner.
The shutter valve works in tandem with the variable intake valve to boost torque
and power at high engine speeds. The fresh air duct is partially inserted into
the air cleaner and enables an optimal length intake system through opening
and closing of the valve.
- Lightweight rotor: 11% reduction in rotor weight and 20% reduction in flywheel
weight compared with the previous 13B REW engine
- Three injectors per rotor
- Long-span engine mount (Long members extending laterally from the rotors' center
of rotation suppress engine vibration and allow greater direct transmission
of power to the drivetrain
- Dynamically balanced rotors, resulting in low vibration and distinctive rotary engine
sound
- More stable and efficient fuel combustion achieved by side exhaust port locationallowing elimination of port overlap and retained exhaust gasses
- Newly designed seals: a cut-off seal located between the rotor's dual oil seals
and side seal eliminates carry-over of exhaust gas to the next intake cycle.
TeMpTeFfect
好好宝宝
- 注册
- 2002-05-22
- 消息
- 2,179
- 荣誉分数
- 2
- 声望点数
- 0
放假就去车行看看, 太cool~了
