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Least number of valves required at the top of a four-stroke cycle engine?
Two. Intake, and exhaust.
Are the tugboat engines are two stroke or four stroke?
For the most part, Tugboat Engines are LARGE two stroke (or two stroke cycle) Diesel Engines which provide High Combustion Temperatures and Pressures, High Horsepower typically > 1000 and High Torque, at relatively low speed. As an example of the two stroke diesel cycle engines ability to produce high horsepower and high torgue at low speed, The Union 6V Diesel was produced during World War Two as an engine for locomotives for the transport of industrial materials used in the production of weapons and armament. It was functionally an inline or straight block configuration, but because adjacent cylinders were actually offset from centerline by 6 degrees in opposite directions (cyl 1 offset to starboard by 6 deg from centerline and cyl 2 offset to port by 6 degrees from centerline, and so on) it was technically a V configuration. It was subsequently utilized by the Navy in a few instances as main propulsion for Yard Craft, mostly Yard Oilers (capable of hauling around 240K to 280K gallons of fuel to be loaded to ships at dock in a given harbor). This engine produces in excess of 1000 horsepower at a maximum 325 RPM. It idles at 125 RPM, and at that idle speed produces very large smoke rings out it's exhaust stack. This was also a naturally aspirated diesel (meaning it had no blower or turbocharger). It was also a directly reversible engine in that to reverse your direction of travel, the engine had to be shut down, the camshaft shifted utilizing a dual direction air cylinder, a pinion gear mechanically moved into position between the starter gear and the flywheel gear, and the engine then was restarted in the opposite rotation, turning the main output shaft in the opposite direction. No transmission or reduction gear.
2 stroke vs 4 stroke?
On a 2 stroke engine, each cylinder fires every time the piston comes up. On a 4 stroke engine, the cylinder only fires every OTHER time the piston comes up. 4 stroke engines have 4 strokes: Intake, compression, power, and exhaust. 2 stroke engines complete these cycles in only two strokes of the piston by use of ports in the cylinder walls. 2 stroke engines usually produce more power for a given weight/size. But, in gasoline engines, 2 stroke engines are typically less efficient (use more gas) and have much higher pollution levels (note: some newer "direct injection" 2 stroke engines do much better on pollution levels than the typical 2 stroke)
Will two stroke oil damage a four stroke engine?
while adding top end (valve train) lubrication, the oil will lower the octane rating of the fuel being used, cause massive carbon build-up, possible plug fouling, and lean mixtures that can cause overheating.
Working principal type description operation of shaping machine?
there are two stroke include in this forward stroke &return stroke during the forward stroke machine works means it removes the material from workpiece & during the return stroke machine remains idle
What are examples of two stroke engine?
Detroit diesel engine is an example of two stroke engine
Which engine was invented first.Two stroke engine or four stroke?
two stroke
What are the strokes in a two stroke diesel engine?
suction stroke and exhaust strokes are the two strokes involved in 2 stroke engine....
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.
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 the application areas of two-stroke diesel engine?
big mashines (trains, ships,...)
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.
Can the two stroke engine be used in any direction or orientation if so explain?
It depends, a chainsaw or weed wacker can be run upside down because the two cycle oil mixed in the gas is what lubes the engine. A Detroit Diesel two stroke engine can not.
What is The API C classification for lubricating oils pertains to which type of engines?
The C classification of oil is for diesel engines.
Advantages of two stroke engine over a four stroke engine?
Explain the advantages of four-stroke engine over two-stroke engine
What are the different types of engines used in vehicles?
Petrol, carburettor Petrol, fuel injected Both can be normally aspirated or turbo charged Petrol two stroke Diesel, Normally aspirated or turbo charged Diesel, two stroke Rotary engine.
What is the only two-stroke diesel ever made?
Dietroit Diesel
