Why are oil pumps used?

The oil pumps primary purpose is to circulate engine oil under pressure to the bearings, pistons and the camshaft. This lubricates these systems, allows the use of higher-capacity fluid bearings and also assists in engine cooling.

What is auxiliary pump?

Noun. 1. auxiliary pump – a supplementary pump available if needed. donkey pump. pump – a mechanical device that moves fluid or gas by pressure or suction.

What is the purpose of stationary blades in a reaction turbine?

In a reaction turbine both the nozzles and blades act as expanding nozzles. Therefore, the static pressure decreases in both the fixed and moving blades. The fixed blades act as nozzles and direct the flow to the moving blades at a velocity slightly higher than the moving blade velocity.

How does an oil pump jack work?

An electric or gas-driven engine rotates a counterweight, attached to an arm that moves a pivoting beam up and down. A cable at the opposite end pulls a rod assembly up, and drops it down again. A hollow chamber with a simple valve opens and fills each time the rod descends, then closes and lifts it up to the surface.

What are oil pumps called?

pumpjack
– A pumpjack (also called donkey pumper, nodding donkey, pumping unit, horsehead pump, rocking horse, beam pump, dinosaur, sucker rod pump, grasshopper pump, Big Texan, thirsty bird, or jack pump) is the overground drive for a reciprocating piston pump in an oil well.

What is the purpose of the radiator?

In the simplest terms, the radiator is the central component of a vehicle’s cooling system. Its primary function is to monitor and regulate a vehicle engine’s temperature and prevent it from overheating.

What are jacking oil pumps?

Sometimes Jacking Oil Pumps (to lift the shaft) are provided to Steam Turbine & Generator and some times only to Generator. On what basis do we decide to provide the Jacking Oil?

What is the purpose of jacking oil in a turbine?

Thus for the above two circumstances, Jacking oil provides high-pressure oil to the base of bearing and floats the rotor on the film of oil. Generally Jacking oil is used when turbine is running above 200rpm. The pressure generated is around 300 bar. How turbine oil system work in power plant?

Why is the jacking oil system run in parallel to the shafts?

Until the turbine shaft speed is capable of sustaining an adequate bearing oil wedge (above 200 r/min ), the jacking oil system and the normal lubricating oil system are run in parallel.

How to turn the turbine shaft manually with hand pump?

• Check if the lube oil system and jacking oil system is in service. • Push the jog push button on the local panel to engage the gear and turn the turbine shaft manually with the hand pump. • Turn the shaft by 180° as follows. • Every 5 min. during the first 2 hours.