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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
What is the importance of hydraulics?
well if you drive that's one of the reasons why your able to stop ( your brakes are hydraulic ).....same for that effortless steering its powered by hydraulic pump via the crank..and if you talking about the system used to adjust your suspension well that's just alot of fun......
How do hydraulic barber chairs work?
When one presses the pump pad, the chair goes up on its own on a hydraulic barber chair. There is also a mechanism that will make the barber chair go down.
How does solenoid hydraulic valve work?
A solenoid valve is a type of valve that uses an electrical current to actuate or shift a spool or cartridge consisting of a solenoid coil and tube assembly.
Basically, this valve type uses an electric current to shift a pin to perform simple A/B tasks such as open/close valve spools.
The designation "solenoid" means that the valve operation is electrical not manual.
Maybe the easiest way to describe a solenoid valve is by thinking about an automatic car lock. The electric current get triggered, the pin gets pushed up and the doors are unlocked. A reverse current gets triggered, the pin gets pushed down, and the doors are locked.
You reduce the diameter of the small piston. Or reduce the diameter and increase the travel of the small piston if you want the large piston to maintain it's previous range of travel.
What function does an accumulator perform in a construction machine hydraulic system?
A hydraulic accumulator is an energy storage device. It is a pressure storage reservoir in which a non-compressible hydraulic fluid is held under pressure by an external source. That external source can be a spring, a raised weight, or a compressed gas. The main reasons that an accumulator is used in a hydraulic system are so that the pump doesn't need to be so large to cope with extremes of demand, so that the supply circuit can respond more quickly to any temporary demand and to smooth pulsations.
Is it necessary to replace hydraulic lifters with a head gasket change?
No, it's not necessary. Still, I'd advise doing it if the vehicle has more than about 90,000 miles. You have already taken the engine apart to that point, so the additional parts and labor are minimal compared to what you would pay later to have it taken apart all over again.
A pressure gauge is an instrument that measures the pressure in a vessel, a line, or whatever the pressure gauge is connected to. Pressure gauges come in at least two different types: differential pressure gauges, and absolute pressure gauges.
Differential pressure gauges measure - surprise - DIFFERENCES in pressure. Pressure gauges that read "zero" when not attached to anything would actually be differential gauges that measure the difference between atmospheric pressure and the pressure of whatever they are attached to. Vacuum gauges are differential gauges that measure how far BELOW atmospheric pressure the pressure is in a vessel or pipe. Gauges that measure "gauge pressure" are just differential gauges that are calibrated to measure zero at atmospheric pressure.
Absolute pressure gauges would only read "zero" if they were attached to an absolute vacuum. A common type of absolute pressure gauge is a barometer. Strictly speaking, a mercury barometer is really a differential gauge that measures the difference between the vapor pressure of the mercury and the surrounding atmosphere, but the vapor pressure of the mercury is so low that the error in treating it as an absolute pressure gauge is generally negligible.
There are many different kinds of gauges used to measure pressure including:
Instruments
hydrostatic - These measure pressure according the height of a liquid in a column. The height of the liquid is proportional to the pressure. Common types of hydrostatic gauges include: manometers, McLeod gauges, and piston gauges.
aneroid - The pressure sensing element may be a Bourdon, a diaphragm, a capsule, or a set of bellows, which will change shape with changes in the pressure of whatever the gauge is attached to. The deflection of the pressure sensing element is read by a linkage connected to a needle or by a secondary transducer. The most common secondary transducers in modern vacuum gauges measure a change in capacitance due to the mechanical deflection. Gauges that rely on a change in capacitance are often referred to as Baratron gauges.
Electronic sensors
thermal conductivity - including two wire and one wire gauges that measure pressure via changes in the thermal conductivity of the wires as they are placed under strain. Something like this is used in a lot of electronic bathroom scales.
ionization gauges - These are primarily used for measurements of low-pressure gasses. They sense pressure indirectly by measuring the electrical ions produced when the gas is bombarded with electrons. Fewer ions will be produced by lower density gases. they have to be calibrated against another type of pressure gauge and depend on the gas being measured.
A mobile self-contained bench to provide a variable supply of water to a series of interchangeable bench-mounting or floor-standing hydraulic and fluid mechanics experiments.
How can you tell if the hydraulic tappet lifters are worn?
You will hear a clear tikking noise, and the engine will use more oil than normal.And somethimes you will only hear it when you let of the gas pedal
What fluid does hydraulic cranes use?
mostly oil
All our the more modern cranes in our fleet use ISO 68 hydraulic fluid. In many cases, the manual calls out for ISO 32, but we use 68. I've talked it over with the manufacturers, and since we live in a hot climate, they agree that is probably equal or better. Or you can consult a fluid power specialist to determine which synthetic fluid might be a good substitute.
The manuals for our very old cranes sometimes calls out for non-detergent 10-wt motor oil, but that is the same thing as what we now call ISO 32.
Are hydraulic shocks better than gas shocks?
Gas shocks are considered better and are usually more expensive. They use pressurized nitrogen to absorb shock, as opposed to hydraulic which uses an oil. The oil in a hydraulic shock may foam under heavy use and lose efficiency.
Is there harm in mixing hydraulic fluids?
depends on what your putting the fluid in, in some cases, yes
Hydraulic capacity for a bobcat 600?
It uses hydralic fluid not transmission fluid and takes about 5 gallons.
It uses hydralic fluid not transmission fluid and takes about 5 gallons.
Hydraulic lifts utilize a hydraulic piston or ram, typically oil filled, to supply the lifting force for raising or lowering an object/load. These hydraulic systems are usually subdivided by the initial force that drives the hydraulic pump which supplies pressure for the piston. Air/Hydraulics (air over hydraulics) and Electric/Hydraulics (electric over hydraulics) are the two most popular types of power supplies for hydraulic driven systems. Cables and pulleys are often incorporated in hydraulic systems to provide equalization between multiple hydraulic cylinders that must work in unison and to remotely transfer the lifting force to areas where a large cylinder would be impractical to locate.
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.
