2006-08-22 18:54:48 · 6 answers · asked by wudaal 2 in Science & Mathematics ➔ Engineering
2 cylinders, 1= 100cm diameter and the other = 10cm diameter.
Both have a piston them and are connected by a hydraulic hose. If yoy compress the 10cm diameter piston down by 20cm the 100cm diameter piston will move up by 1/10th ie 2 cm but because the oil is acting on a surface area much larger than the primary piston it will move up with greater force than applied to the primary piston. This is how we get the mechanical advantage and why hydraulics are so powerful. by the way this is my longest answer ever.
2006-08-22 19:06:35 · answer #1 · answered by rsdudm 5 · 0⤊ 0⤋
Ok, they really are pretty simple, but there are quite a number of different systems. But they all have a pump which supplies power to the system by pressurising the working fluid (hydraulic fluids can be water, oil, special fire retardant fluids).
The fluid flows through various controls to start, stop reverse flow etc. , It then is used to move hydraulic cylinders, run motors, they even have hydraulic motors with spindles ready for mounting wheels.
After doing the work the fluid is returned to a reservoir. The advantages are increasing the force as in cylinders by correct sizing. Or reversible variable speed motors.
But you will always need more horsepower with a hydraulic system because some of the fluid power is lost as fluid friction.
2006-08-23 06:44:50 · answer #2 · answered by Roadkill 6 · 0⤊ 0⤋
Well now going to try and make a simple unit in words lol, but remember oil is non compressible at least we do not use it in small systems.
1. You have a prime mover being gas engine, electric motor, ect.
2. you have a hydraulic pump, positive displacement or non positive displace ment.
3. you have a directional valve of some sort.
4. you have what is called an actuator, being a hydraulic motor or a hydraulic cyclinder or both.
All of these work on presure applied to a surface area multiplying force.
I got the whole class in my basement if you would like to take it lol.
2006-08-25 22:16:11 · answer #3 · answered by jjnsao 5 · 0⤊ 0⤋
Essentialy it is a liquid under pressure being allowed into a cylinder to force a piston forwards. The pressure multiplied by the area of the piston gives the force available.
Please use the same units!
2006-08-22 19:39:24 · answer #4 · answered by Roy S 5 · 0⤊ 0⤋
hydrolic system is not an easy thing to describe in few lines ,we studdy it for years and before we have to studdy other things like maths ,diffrential equations ,fluid michanics and design and many other things just to be ablr to studdy it
but simply it is based on pressure of a fluid in and u controll it by pubps and valves and pistons to transfer the acting force from part to another and of course u use certain liquid and it can be any thing but oil is prefered
2006-08-22 19:02:51 · answer #5 · answered by decentboy911 2 · 1⤊ 0⤋
hydraulic system works,,,,,,,,,,,,,,,, by special oil,,,,, i.e. hydraulic oil,,,,,,,,,,,,,,,,,, it is used instead of air,,,,,,,,,,
2006-08-22 18:57:03 · answer #6 · answered by Anonymous · 1⤊ 0⤋