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Combustion Engines
Combustion engines are not only used in road vehicles but also trains, ships, aircraft, military and construction machines.
1,973 Questions
How do hydraulic intensifier works?
How Hydraulically Driven Intensifiers Work
Process fluid flows through the inlet check valve and fills the process fluid cylinder.
Pressurized hydraulic fluid acting on the hydraulic piston strokes the piston assembly to the right. Process fluid in the right cylinder is forced through the discharge check valve. At the same time, fluid flows through the inlet check valve on the left cylinder filling this cylinder.
At the end of this stroke, the four-way valve changes position and directs pressurized hydraulic fluid to the right side of the hydraulic piston. The piston assembly moves to the left, discharging fluid from the left cylinder.
The piston assembly reverses direction automatically and the cycle repeats.
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Intensifiers operate on the ratio-of-areas principle in a linear actuator. A common rod connects the pistons of two cylinders of different bore, Figure 1. Lower-pressure fluid, acting on the larger piston, exerts a force that is transferred mechanically by the rod to the smaller piston. The smaller piston generates a higher pressure in the fluid in its bore: the pressure ratio is inversely proportioned to the areas ratio.
Theoretically, there is no limit to the outlet pressure that can be achieved. Practically, the increased viscosity of oil at higher pressures imposes an upper limit, as does heat of compression. Air containing oil may diesel at higher temperatures.
An intensifier operates at a constant power level; outlet flow decreases as outlet pressure increases. This is analogous to transformers, which very voltage and amperage at the same electrical power level, as well as gear trains, which vary torque and speed at the same mechanical power level.
When was the first automotive engine invented?
I believe that the first "engine" was a steam powered engine which was originally used in the coal mines to pump out water as well as to move out the coal... If you don't know. A steam powered engine uses a special process of heated water, hence the word steam, which is controlled by valves. the original steam powered engine, the pressure was to both sides of the piston as was used for trains... I guess I answered more the what than the when... so for the when, I believe that Ford used the first mass produced engine in 1907, but gasoline engines were invented in, I think, 1896.
Why are only two stroke and four stroke engines possible?
wankel made an engine which is now in the Mazda rx8 which is a rotary engine,in which the piston rotates,rather than go up and down
Also a rotary has not got a piston it has a ROTOR that ROTATES around a bore.(like a block in a 4 or 2 Stroke) a rotor has 3 sides that pass a intake port, a sparkplug chamber and an exhaust port.
What does the condenser on a car engine do?
"ITS PART OF THE COOLING SYSTEM?? " That is what the part is, not what it does. The Condenser, condenses the refrigerant while releasing heat that was in the car. Allowing the system to cool the inside of the car.
How do I remove the generator from the engine in a Briggs and Stratton 6200 W portable generator?
they make electricity
Similarities between Internal combustion and external combustion engine?
both are the type of internal combustion engin
How do you remove the engine on a Hyundai Santa Fe?
I know it sounds like a silly answer, but if you need to ask how.. your not ready to tackle the task.
To put it into basics
Drain radiator and remove
Remove electrical connections from motor
Remove hoses
Remove exhaust
Remove hood
Remove drive shafts
Support motor with hoist
Remove engine mount bolts
Lift motor and transmission out.
How do you reset 2000 Rav 4 check engine light?
The check engine light is on because of an emission control problem. In order to shut it off you have to have it hooked up to an OBDII code reader. The code reader will give you a code as to why it is on and can shut it off for you.
Water in the oil pan ( looks milky or creamy on the dipstick ) is indicative of a blown head gasket. If your head gasket is blown you may have warped the head, especially if the vehicle was overheated. The fix is to remove the head(s) and take it ( or them ) to a automotive machine shop to be inspected and possibly milled. While the shop is at it they should inspect the valves and replace any that are bad. When you get the head back you will need to reinstall it with new gaskets. This is a good time to replace your timing belt or chain ( and tensioners ) since you will have the thing apart anyway. If you continue to run the engine in this condition you will do serious harm to the engine.
What is function of difference engine and analytical engine?
A machine first proposed by Charles Babbage in 1837 that is considered the concept for the first general mechanical computer. The Analytical Engine contained an Arithmetic Logic Unit (ALU), basic flow control, and integrated memory and is the first general-purpose computer concept. Unfortunately because of funding issues this computer was also never built while Charles Babbage's was alive. However, in 1910 Henry Babbage, Charles Babbage's youngest son was able to complete a portion of this machine and was able to perform basic calculations. In the picture to the right, is a public domain picture of the Analytical Engine.
What is the exact definition of explosion?
That isn't a word. This might help but, expiation means making amends.
Also, always use 'an' instead of 'a' when the following word starts with a vowel.
Why for the same power CI engines are larger and heavier than SI engines?
SI is SPARK IGNITION - Otto (4-stroke) and Day (2-stroke) cycle
CI is COMPRESSION IGNITION (DIESEL) also in 4- and 2-stroke variants
The SI spark plug is timed to start combustion at the ideal moment, usually some degrees before the piston reaches the top (TDC or Top Dead Centre). The burning mixture then drives the piston down for the power stroke.
The CI fuel is injected (sprayed) into the cylinder at the ideal moment - this too is usually some degrees before TDC, and the red-hot air in there then starts the fuel burning. This then drives the piston down for the power stroke.
SI is limited in maximum compression ratio (the amount the air or mixture is compressed as the piston rises in the cylinder), or it can start to behave like CI (Dieselling).
CI uses the highest compression ratio possible to improve ignition - and - improve efficiency too... The expansion ratio is the inverse of the compression ratio, and the more that the burning gas is allowed to expand whilst doing work, the better the efficiency.
CI is also an 'excess air' cycle, potentially. A full cylinder of air is compressed each time, and the amount of fuel injected is varied to change power - this is beyond the lean burn that can be achieved with SI.
Why petrol engine is called spark ignition engine?
Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.
What are static load and dynamic load?
A static load is the effect of gravity on an object or structure.
A dynamic load is the forces that move or change when acting on a structure.
Example of a dynamic load:
Force of wind or the weight of a truck
Example of a static load:
Weight of a bridge
A mechanical device that can work by means of fuel consumption. A mechanical device that can work by means of fuel consumption.
Whats the difference between a motor and an engine?
There are different definitions for both depending on the application to which it is put.
For instance, to a mechanical engineer an engine produces energy or power whereby a machine consumes it.
How calculate the engine work from pressure crank-angle diagram?
Well Work is the integral of P*dV and since the crank angle plot doesn't directly show volume you need to calculate instaneous volume of the cylinder as a function of crank angle. If you know the bore and stroke you can find the volume of the cylinder and you can relate this to the crank angle. Once you have these values you can replace the crank angle with volume and have a P-V plot or pressure on the y-axis and volume on the x-axis. Then you can integrate the area under the curve and find the work from the engine.
However, all this is done for you if you can find the P-V diagram for your engine or engine cycle (Sterling, Atkinson, Otto, Diesel, etc.) and integrate this for the work.
Can you use kerosene in petrol engine?
No! Yes! Low performance spark ignition engines in boats and tractors commonly use kerosene as a fuel. Some need to be started on petrol then switched to kerosene.
What are the functions of resin?
The function of Resin depend on it type. Normaly resins are adhesibe.
