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The cut-off is defined as a percentage of piston stroke, and varies according to the purpose & design of the engine.
On a railway locomotive it is variable by a control in the driving-cab, typically from about 70% in full gear to perhaps 20% or shorter fully "notched up"; in both forwards and reverse travel. (A locomotive can be driven equally well in either direction - though uncomfortably so for the driver.)
Some mill-engines (for driving factory machinery) had variable-expansion valve-gear whose cut-off was controlled by the governor, to obtain efficient operation and constant speed throughout the range of naturally-fluctuating load imposed upon it through the working day.
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Early cut off and late cut off?
An early cut-off and a late cut-off are both involved with steam engines. A late cut-off delivers full steam pressure to move the piston through its entire stroke, so as to enable maximum start-up force. An early cut-off has greater thermodynamic efficiency but results in a lower mean effective pressure, which puts less force on the piston and is used for running the engine at higher speeds.
What is cut off ratio?
a percentage or amount of something AE: the fuel. there is a cut off ration on your fuel system so that your engine does not flood out and stop running.. or burn up.. its main purpose is to improve gas mileage and air fuel ratio. increasing performance
How does an engine turn off?
Gasoline engine - spark is cut off when ignition is turned off Diesel engine- fuel is cut off when engine is shut down
How would a steam locomotive turn itself off?
A a steam locomotive can turn itself off when the engine is overheated.
Why you use cut-off ratio in diesel cycle not in Otto cycle?
We use cut-off ratio in diesel cycle and not in Otto cycle because it is cost effective.
With no spark plugs to cut power to in a diesel engine how does it turn off?
The fuel is cut off to the engine. With no fuel it stops running immediately.
How do you download gary's mod off steam without buying it?
cant the game belongs to steam they made it off Halflife engine so you have to download it through steam or it will be illigal and we cant help you with that.
Advantages and disadvantages on steam engine?
Steam engine advantages Any suitable form of energy can be used to make steam Not affected much by high altitudes Water can be re-used Steam engine disadvantages Has low efficiency, around 30% Are expensive to buy and run Give off a lot of pollution Take time to start Dangerous to use because of high pressure of steam Only 30% of the steam is used Lots of energy is needed to make the steam
How best can broccoli and cauliflower be prepared?
Just cut off the stalks and the florets and steam them about 7-8 minutes.
What is the definition for main engine cut off?
Main engine cut off or MECO is when a space shuttle reaches the orbit and the external tank is jettisoned and the all 3 SSME (Space Shuttle Main Engines) are turned off
Do land rovers has an engine cut off switch when runs out of oil?
no
Why does the heater cut your engine off?
Must be one heck of a short.
