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How many degrees of crankshaft rotation does it take to complete one complete engine cycle in a stroke engine?
In a four-stroke engine, it takes 720 degrees of crankshaft rotation to complete one full engine cycle, as the cycle consists of four strokes: intake, compression, power, and exhaust. Each stroke corresponds to 180 degrees of rotation. In contrast, a two-stroke engine completes a cycle in just 360 degrees of crankshaft rotation, encompassing both the power and exhaust strokes in a single revolution.
How does a Bollinger engine work?
The engine is a 2 stroke 'semi' diesel. Inlet and exhaust are as per 'normal' two stroke diesel but the injected fuel is not ignited by compression alone as in a normal diesel. Instead a 'hot bulb' on the cylinder head is heated with a blow-lamp before starting and heat from this, transferred to a tube in the combustion chamber which ignites the fuel to start the engine. Once running the engine itself maintains the temperature. Often called a Hot Bulb Engine.
Why does two stroke engine pollute air more than a four stroke engine?
Two-stroke engines generally pollute the air more than four-stroke engines due to their design and operation. In a two-stroke engine, the combustion cycle is completed in just two strokes of the piston, which often leads to incomplete combustion and unburned fuel escaping during the exhaust phase. Additionally, two-stroke engines typically mix oil with fuel for lubrication, resulting in higher emissions of hydrocarbons and particulate matter. In contrast, four-stroke engines have a more efficient combustion process and separate lubrication systems, leading to lower emissions.
Why two stroke engine not used in aircrafts?
In the two stroke petrol engine as you know suction,compression,ignition,expansion and exhaust is completed in only two stroke and one revolution of crank wheel more over diesel ignites at very high pressure which is not the same in case of petrol........if petrol is also ignited under pressure it explodes producing a big thumping sound.called KNOCKINGthis may reduce the power output and also lead to breakdown of the engine. For the above reason two stroke engine cannot compress air and ignite the fuel like diesel engine.
Why does a two stroke engine pollute air more than a four stroke engine?
A two-stroke engine pollutes the air more than a four-stroke engine primarily because it completes a power cycle in just two strokes of the piston, allowing for less efficient combustion. This design often results in unburned fuel being expelled with the exhaust, leading to higher emissions of hydrocarbons and other pollutants. Additionally, two-stroke engines typically lack sophisticated emissions control technologies, further exacerbating their environmental impact. In contrast, four-stroke engines have a more complete combustion process and usually incorporate systems to reduce emissions.
If speed of a two-stroke engine is N then what is the speed of a four-stroke engine?
It could be anything. The difference between the two is that in a two-stroke engine the piston goes back and forth (two strokes) for every ignition event (spark plug firing for a gas engine or fuel injection for a Diesel), while it goes back and forth twice (four strokes) for a four stroke engine.
How does a two stroke engine combine the four strokes of a typical internal combustion engine?
A two stroke engine combines the four strokes of a typical internal combustion engine into two strokes instead of four.
In two stroke engine Crankshaft how many revolution takes place?
A two stroke engine has half the strokes of an otto (or four stroke) engine, therefore it takes two crankshaft roatations to complete a cycle on a four stroke engine and only one revolution in a two stroke engine. There are several types of two stroke engines, the different types have to do with how the receive the air/fuel mixture, also you have two stroke diesel engines.
What are examples of two stroke engine?
Detroit diesel engine is an example of two stroke engine
What are strokes of a two stroke engine?
intake and exhaust
Why you prefer four stroke engine over two stroke engine?
Four stroke engines are quieter than two strokes, but have less power.
How to calculate frequency in diesel engine?
To calculate the frequency in a diesel engine, you need to determine the engine's RPM (revolutions per minute) and the number of power strokes per revolution. The frequency can be calculated using the formula: Frequency (Hz) = (RPM × Number of Power Strokes) / 60. For a four-stroke engine, the number of power strokes is typically 1 per 2 revolutions, while for a two-stroke engine, it is 1 per revolution. Adjust the formula accordingly based on the engine type.
What is the difference in combustion in a 2 stroke engine and a 4 stroke engine?
2 stroke means it takes two strokes for a power stroke and 4 sroke takes four strokes for power stroke so in otherwise 2 strokes are way faster and more torqey
What is the difference between cycle and stroke?
In a two-stroke engine, two strokes is one cycle. In a four stroke engine, four strokes is one complete cycle. A stroke is a part of a cycle. Remember that the "up" motion and the "down" motion each count as one stroke.
What are the major difference between 4stroke engine and 2stroke engine?
A four stroke engine has 4 strokes per cycle, whereas the two stroke engine has only 2 strokes per cycle. Since the 2 stroke engine has twice as many power strokes as a 4 stroke engine at a given rpm, the 2 stroke is capable of making nearly twice the power of a 4 stroke for a given displacement.
Where 2 stroke diesel and petrol engine used?
two stroke diesel engine is used in cargo ships as cross head type engines, two stroke petrol engines used in two wheelers.
What is the difference between 2 stroke and 4 stroke?
in a two stoke engine ther is only two steps before it starts the cycle over, in a 4 stroke engine there is 4 strokes
