Answer / kuntal

In Hydraulic Systems we have differents parts inside the
hydraulic cylinder.
A piston is one amoung them which has Piston rings and
Steels Diaphragms around the Piston.
Now The Piston with the Piston rings moves inside the
Cylinder.But if There is no cooling provided in a Hydraulic
system there will be Uneven Expansion of The Piston and The
Piston rings which will lead to misalignment between them
and therefore more friction between them and it will
restrict the sliding movement of the piston in the cylinder.
Also, there is chances of corrosion of the piston walls and
hence Leakage of Oil across the Piston which will lead to
reduced hydraulic pressure generation than reqd.
This will lead to improper functioning of the piston in the
cylinder and hence cooling is needed to control the
expansion of components inside a hydraulic system.

Answer / kamlesh thakor

Due to the change of temparature in hydraulic oil , it effect in change of viscosity of oil and so various problem in hydraulic system's component are created like leackage, wear , enery loss by pressure loss so cooling requirement must at certain level of temparature increased.

Answer / sat

in hydraulic systems, oil is heated due to compressions
this may lead to changes in effect due to various thermal
effects.
to reduce this effect in a larger scale, hydraulic systems
have facility for cooling the hydraulic oil and recirculate.

note: answer maybe wrong or partly wrong

explain the methods of measuring aproblem of armature reactionof DC machine?

0 Answers  

---

can a deareator be placed at any height with care that suction (NPSH) for feed pump is satisfied

0 Answers   Sail,

---

why the backwheel of tractor is bigger than frontwheel?

12 Answers   HAL, HMT, MAHINDRA,

---

why vehicle jump after sudden release of clutch.

3 Answers   ARDE, Dr Reddys, L&T, Sun Pharma, Tata Steel Limited, Wirtgen India,

---

What is the difference between basic hole and basic shaft ?

0 Answers  

---

why dont we use the vapour absorption refrigeration system in power palnts

1 Answers  

---

Why would you use hydraulics rather than pneumatics?

0 Answers  

---

what is line balancing

0 Answers   Studds Accessories,

---

The fatigue life of a part can be improved by ?

2 Answers   Essar,

---

what's the difference between front and rear wheel drive?on what basis we choose the type of drive?

3 Answers  

---

what is the advantages and dis advantages of critical speed of turbine.

0 Answers   Essar,

---

How do you calculate cooling energy?

0 Answers  

---