Answer / ranjesh

It is othr wise called as jack oil pump.Generally during
shut down as the temperature of the shaft is very high, it
tends to bend in stagnant condition. But if it got slow
rotation it has lesser tendency to bend.So for rotating
theshaft at low RPM it needs to be jack up for reducing
friction.Jack oil pump do the by suppling oil to the jurnal
bearing.

Answer / abdul hameed

Purpose of jacking oil pump in Turbo Generator is to keep the Rotor in floating condition during slow speed requirement for uniform cooling (during shutdown) and uniform heating (during Start up).

While finding the velocity of gear B , in case of a simple epicyclic gear train, why do we take tke velocity of gear A to be ZERO(0)if the arm is rotated with speed equal to that of gear A and in opposite direction?

0 Answers   MNC,

---

What is equivalent spring constant for spring in parallel?

3 Answers   Bhel,

---

tell me about special purpose machines

5 Answers   Infotech, TATA,

---

Why supercritical boilers use less amount of steel compared to non-supercritical boilers ?

0 Answers  

---

hi for amvi post 3 years of experience in lmv is mandatory rule my lmv will get old for 3 years for the next year 8 month 2009 buddyys plzz post exam pattern to my email id to sama_reddy2003 @yahoo.com

1 Answers  

---

Re: what is different between run out and concentricity in Gd &T

0 Answers  

---

What is the effect of changing in cc of the engine?

3 Answers  

---

what will be the minimum bearing clearance that after it will not profitable for machines?

0 Answers   Wartsila,

---

what is entropy acc to new concept?//

1 Answers   L&T, MAHINDRA,

---

How do gas/electrical/coal heating systems work

1 Answers  

---

What are the advantages of white metal?

0 Answers  

---

How to calculate the CFM in the AHU (air handling units.

1 Answers  

---