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Hydraulics
Due to its immense power, hydraulics are used for operating various machinery, vehicles, aircraft, ships and equipment. The data and engineering revolving around hydraulics is so vast, its hard to comprehend.
1,856 Questions
Measure of the volume of water which a structure can pass; measure of the volume and flow of water within a watercourse.
A barometer is an instrument used to measure the atmospheric pressure. It does so by comparing the atmospheric pressure with a predefined standard pressure.
How do you add oil to a hydraulic fluid to a hydraulic floor jack?
With my 2 floor jacks of a different stripe, both are configured with a short fine-threaded hex head bolt that serves as both drain and fill orifice, located topside of the piston assembly. Be sure to release all compression prior to opening and throughout refill process. A squeeze bottle like the one's used for mustard at the ball game, are perfect for refilling through that tiny little 1/4" hole.
Good Luck!
Is one hydraulic fluid better then another hydraulic fluid?
yes, their are many types of hydraulic oils, for different specificate duties machine,s apply to.
What is the principle of hydraulic brake system?
PRINCIPLES OF HYDRAULIC PRESSURE A Frenchman named Pascal discovered that a pressure applied to any part of a confined fluid transmits to every other part with no loss. The pressure acts with equal force on all equal areas of the confining walls and perpendicular to the walls. Remember when you are talking about the hydraulic machine, you are talking about the way a liquid acts in a closed system of pipes and cylinders. The action of a liquid under such conditions is somewhat different from its behavior in open containers or in lakes, rivers, or oceans. You also should keep in mind that you cannot compress most liquids into a smaller space. Liquids don't "give" the way air does when you apply pressure, nor do liquids expand when you remove pressure. Punch a hole in a tube of toothpaste. If you push down at any point on the tube, the toothpaste comes out of the hole. Your force has transmitted from one place to another through the toothpaste, which is a thick, liquid fluid. Figure 10-5 shows what would happen if you punched four holes in the tube. If you were to press on the tube at one point, the toothpaste would come out of all four holes. You have illustrated a basic principle of hydraulic machines. That is, a force applied on a liquid transmits equally in every direction to all parts of the container. We use this principle in the operation of four-wheel hydraulic automobile brakes. Figure 10-6 is a simplified drawing of this brake system. You push down on the brake pedal and force the piston in the master cylinder against the fluid in that cylinder. This push sets up a pressure on the fluid as your finger did on the toothpaste in the tube. The pressure on the fluid in the master cylinder transmits through the lines to the brake cylinders in each wheel. This fluid under pressure Figure 10-6.-Hydraulic brakes. Figure 10-7.-Liquid transmits force. pushes against the pistons in each of the brake cylinders and forces the brake shoes out against the drums. MECHANICAL ADVANTAGES OF HYDRAULIC PRESSURE Another aspect to understand about hydraulic machines is the relationship between the force you apply and the result you get. Figure 10-7 will help you understand this principle. The U-shaped tube has a cross-sectional area of 1 square inch. In each arm is a piston that fits snugly, but can move up and down. If you place a 1-pound weight on one piston, the other one will push out the top of its arm immediately.
The master cylinder is where the brake fluid starts.
The pedal is attached to the master cylinder plunger. When the pedal is depressed
it pushed the plunger which pushes the brake fluid down the brake lines.
the brake lines are connected to the slave cylinders. when the brake fluid reaches the slave cylinders it presses out a piston to which is attached a brake pad. The brake pad then clamps against the rotor.
All air must be bled from the system. (Air is compressible and if you have any in the system you will have a soft pedal.)
As oil is virtually uncompressable it works as a solid link from pedal to brake.
hudraulic brake system is a composition master cylinder,caliper cylinder,resorvoir,high pressure pipe lines brake pads etc.
while applying brake pedal the hydaraulic pressure comes through reservoir to mastercylinder to primary cup(including piston) and pressure goes to the caliper cylinder primary piston and thus barke pads grabs the disc and thier is heavy heat energy builds,
finally stops the wheel.
during releasing the br pedal the hydraulic pressure line returns through 2dary cup(including piston),returning the brake oil to the reservoir and thus releasing the brake
What are the applications of hydraulics?
Hydraulics are used in many application from your brakes in your car to large industrial machines. Hydraulics refers to a fluid system mainly used to generate a motion like controling a hydraulic cylinder (ram) or hydraulic motor. This system normally run on a type of oil.
What is Hydraulic Radius measured in?
there isn't a measurment for hydraulic radius as far as i know and if you g on any website about it it doesnt have any measurements at the end of it.
Josh (A level geography student)
hydraulic radius has a unit as it is the ratio of c/s area to the wetted perimeter i. e.
A/P so unit of length............
thanks........jayesh gakare,(M.TECH. CHEMICAL ENGG.,IT-BHU,VNS,INDIA.
Assume a small piston (one square inch area) applies a weight of 1 lbs. to a confined hydraulic fluid. That provides a pressure of 1 lbs. per square inch throughout the fluid. If another larger piston with an area of 10 square inches is in contact with the fluid, that piston will feel a force of 1 lbs/square inch x 10 square inches = 10 lbs. So we can apply 1 lbs. to the small piston and get 10 lbs.
What is difference between portland and hydraulic cement?
Am not a 100% sure about this answer but yes it does hold some water in it, the portland cement majorly has its use in well aerated places i.e its mainly used for construction above sea or simply iits used where cement can dry in air
but the hydraulic has properties enabling it to harden properly under water. and thats where its mostly used or in places where water really comes around.
Can hydraulic pumps be used as motors?
no. motors POWER hydrolic pumps. hydrolic pumps cannot function at the fast rate needed to generate energy as motors do.
Answer 2
There is not necessarily any need for a hydraulic - or any other - motor to function at a fast rate, as you put it. A hydarulic pump may need to only turn at say 1 rpm and at this speed send out enough oil to drive a hydraulic motor. Then main thing to consider is what type of pump are we talking about? A gear type oil pumo my well not work at very low speeds, but a piston type pump will work very slowly if needed.
What happen to the hydraulics system if the cylinder or motor encountered a load it could not move?
excess pressure would be dumped to tank via the relief valve and nothing would go nowhere hopefully. Otherwise you would bend your hydraulic cylinder rod , or sheer the shaft on your motor .
Why are giant machines that are designed with pulleys for these functions instead of hydraulics?
Not sure if I know what "giant machines" are, but I can make a comparison with Airplanes. Some large aircraft use pulleys and cables to work the flight controls and the newer ones use hydraulics or electrical servos. The cables have an advantage in that they are less complicated than hydraulic controls. Hydraulics have to have a reservoir, a pump, and usually high pressure lines as well as a return line. This requires a lot of maintenance and present more problems if the hydraulic lines required for large vehicles. The larger the vehicle, the more hydraulic oil to fill the lines. Modern military jets and the A380 use smaller hydraulic lines pressurized at 5000psi, which reduces the required volume of oil. Of course, a system pressurized at 5000psi seems to present more problems than a 3000 psi. Now, the cons of the pulley and cable is that this does not apply as much force as a hydraulic system. Also, for long cable runs and complicated controls, the cables require a lot of rigging and adjustment and checking the cable for damages from wear. Did that help??
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.
How do you change the hydraulic fluid in a 1993 Saturn?
Hydraulic fluid could be used in two locations on your 1993 saturn. your brake system is of course Hydraulic, in this case, the easiest way to change the fluid is to obtain a vacuum brake bleeder kit from your local parts store. you will need to loosen each bleeder screw on all 4 wheels and attach the vacuum bleeder. keep an eye on the fluid level in the master cylinder so it doesnt get too low. 1 large bottle of brake fluid is enough to do an entire vehicle. If you are talking about the clutch fluid, which is also hydraulic, there is no method of changing the fluid. the unit is sealed and offers no bleeder.
How do you tighten down hydraulic rockers to specifications without over tightening?
torque wrench Not with a torque wrench ! Obtain your proper specs (clearance and sequence at TDC for each corresponding valve) set the valves using the specs obtained and the proper thickness gauge .Tighten each rocker to valve clearance until you have a slight drag on your gauge between the rocker and valve.
How to adjust hydraulic lifters?
To adjust hydraulic lifters with the engine off, turn the crankshaft until the lifter is on the camshaft base circle (not the lobe). The valve must be fully closed. Loosen the adjusting nut until you can wiggle the pushrod up and down. Then slowly tighten the rocker until all play is out of the valve train (cannot wiggle pushrod). Repeat the adjusting procedure on the other rockers. To adjust hydraulic lifters with the engine running, install a special oil shroud or some other device for catching oil spray off the rocker. Start and run the engine until it reaches operating temperature. Tighten all rockers until they are quiet. One at a time, loosen a rocker until it clatters. Then tighten the rocker slowly until it quiets down. This is zero valve lash.
How do you repair a hydraulic jack that fails to lift?
Assuming you have checked the hydraulic fluid and it's OK, you could look into replacing the seals on the compression cylinder, but with jacks as inexpensive as they are these days, it would be easier and maybe even cheaper to replace the jack. I routinely see two-ton jacks on sale at automotive stores for $20-30. just check the rubber seling at bucket's bottom of the ram and plunger they wear of.f
How do you bleed a hydraulic clutch on an Audi 5000S?
The best way to bleed the system is to make sure the pedal is up off the floor, and the resevior is full, remove the slave from the trans, open the bleeder screw push the rod into the slave, close the screw, let the rod move back out slowley,,, repeat this until the rod is feels solid. Now open the bleeder screw and slide the slave into the trans all the way, then close bleeder screw and install the pin. top of fluid....
How do you make a simple hydraulic?
Take a tube, put a piston in it, seal off both ends of the tube, and use a liquid, or gas to put pressure in and remove pressure from the tube. As the fluid or gas goes in the tube, the pressure pushes the piston out. As the pressure is released, the piston can recede.
How does the valve reservoir and pump function on a hydraulic cylinder jack?
the pump supply's the pressure, the resivoir supply's the fluid, the valve dirercts the fluid into the cylinder, to extend or retract the cylinder.
How do you repair a hydrolic jack that fails to lift?
It may just need to have some oil added to it, they do lose some over time. There should be either a rubber plug or a screw in plug toward the top of the cylinder on the side. If that is not the problem, it has to be rebuilt, new seal put into it. If it is a name brand, rebuild kits are sometimes available. Some off brand or import ones just have to be replaced.
