CARA MESIN ROTARY BEKERJA | Wankel Engine

Summary

In this video, Muhammad Karir discusses the Wankel (Rotary) engine, a unique internal combustion engine that uses a rotor instead of pistons. Invented by Felix Wankel in 1951, this engine gained popularity due to its compact size and high power output. The video covers the engine's working mechanism, its advantages in power-to-size ratio, and the reasons for its decline, including high fuel consumption and pollution. Despite its discontinuation, the Wankel engine remains a nostalgic favorite for enthusiasts, especially those who grew up with it in video games like Need For Speed.

Takeaways

• 😀 The Wankel engine, also known as the Rotary engine, does not use pistons but uses a rotor to generate power.
• 😀 This engine was invented by German engineer Felix Wankel and was first introduced in 1951 by NSU Motorwerke AG.
• 😀 The Wankel engine has a unique design with a triangular rotor that rotates within a housing to create power.
• 😀 In comparison to a 4-stroke engine, a Wankel engine produces 3 power strokes per revolution due to its rotor design.
• 😀 The engine has a high fuel consumption rate, using much more fuel than traditional 4-stroke or 2-stroke engines.
• 😀 Despite its power, the Wankel engine produces a lot of pollution due to high friction between the rotor and housing, which burns oil along with fuel.
• 😀 Mazda RX-8, which uses a 1300cc Wankel engine, produces 238 horsepower, equivalent to a 2500cc 4-stroke engine.
• 😀 One of the major downsides of the Wankel engine is its poor fuel efficiency, with the Mazda RX-8 consuming 1 liter of fuel for 40 to 50 km in city driving.
• 😀 The Wankel engine is known for being lightweight, having minimal vibrations, and producing a distinctive engine sound.
• 😀 Despite being banned due to emission standards, the Wankel engine remains popular in certain car communities and isiconicinvideogameslike*NeedforSpeed*.

Q & A

What is the Wankel engine, and how does it differ from traditional engines?

The Wankel engine, also known as the rotary engine, is an internal combustion engine that uses a triangular rotor instead of a piston to generate power. This design is different from traditional engines, which rely on pistons to convert combustion energy into rotational motion.

Who invented the Wankel engine, and when was it first developed?

The Wankel engine was invented by German engineer Felix Wankel. The first prototype was developed by NSU Motorenwerke AG in 1951.

How does the Wankel engine generate power?

The Wankel engine generates power through a rotary process. The triangular rotor moves in an eccentric pattern inside the housing, drawing in fuel and air, compressing the mixture, igniting it to produce an explosion, and then expelling the exhaust gases. This process happens three times per full rotation of the rotor.

What are the main components of a Wankel engine?

Key components of a Wankel engine include the rotor (which functions like a piston), the housing (serving as the cylinder block), spark plugs, the apex seal (to prevent compression leaks), the gear rotor (similar to a crankshaft), and intake and exhaust ports.

Why is the Wankel engine more powerful than a 4-stroke engine of the same capacity?

The Wankel engine generates three power strokes for every single rotation of the rotor—one intake, one compression, and one explosion step. In contrast, a 4-stroke engine requires two rotations to complete one power stroke. This results in more power output per rotation in the Wankel engine.

What are the main drawbacks of the Wankel engine?

The main drawbacks of the Wankel engine are high fuel consumption and pollution. Due to the large friction between the rotor and the housing, the engine requires more oil mixed with the fuel, which results in the burning of oil and higher emissions. Additionally, it is less fuel-efficient than 4-stroke engines.

Why is the Wankel engine considered to have a high level of pollution?

The Wankel engine burns a mixture of oil and fuel, which creates higher emissions compared to conventional engines. This is due to the friction between the rotor and the housing, which necessitates the use of more oil for lubrication, which then gets burned during combustion and released with the exhaust gases.

How does the fuel consumption of the Wankel engine compare to traditional engines?

The Wankel engine is significantly less fuel-efficient than traditional engines. For example, the Mazda RX-8, with its 1300cc Wankel engine, consumes about 1 liter of fuel for every 40 to 50 km driven in the city. This is similar to the fuel consumption of a much larger 4-stroke engine (4000-5000cc).

Why was the Wankel engine banned or discontinued in many countries?

The Wankel engine was discontinued and banned in many places primarily due to its high pollution levels, which do not meet modern emission standards, such as the European Euro standards. Its inefficient fuel consumption and excessive emissions made it unsustainable for mass production in a world increasingly focused on environmental regulations.

Why do some people still prefer the Wankel engine, even though it's no longer widely produced?

Despite its drawbacks, the Wankel engine remains popular for its unique characteristics, including its high power output, lightweight design, smooth operation with minimal vibration, and distinctive engine sound. Additionally, enthusiasts often remember iconic cars with rotary engines from the 1990s, such as the Mazda RX-7 and RX-8, especially in video games like *Need for Speed*.