Hydraulic Gear Pump

FLUID POWER
FLUID POWER MEAN USING PRESSURIZED OIL OR AIR TO ACCOMPLISH WORK, MOST HYDRAULIC SYSTEMS USE PETROLEUM OILS OR WATER, AND AIR IN PNEUMATIC SYSTEMS.

FLUID POWER IS USED IN INDUSTRIAL LIFT TRUCKS, LOADERS, ROBOTIC ARMS, AND LANDING GEAR OF AIRCRAFT AND MORE …………..

BUT, WHAT ARE THE FIELDS WE NEED FLUID POWER FOR?
ALMOST EVERYTHING LIKE INDUSTRIAL, CONSTRUCTION, AGRICULTURE, MARINE,
OFFSHORE,………….

WHY WE DON’T USE ELECTRICAL POWER INSTEAD OF FLUID POWER?
THERE ARE A LOT OF REASONS LIKE;

1- TRANSMISSION OF HIGH FORCES WITHIN A SMALL SPACE.
2- HIGH ENERGY DENSITY.
3- ENERGY STORAGE CAPABILITY.
4- RAPID REVERSAL DUE TO LOW COMPONENT MASSES.
5- UNIFORM MOTION.
6- DESIGN FREEDOM IN THE ARRANGEMENT OF COMPONENTS.
7- OVERLOAD PROTECTION.
8- WIDE TRANSMISSION RATIO.
9- LONG SERVICE LIFE.
10- ENERGY RECOVERY CAPABILITY.
AND SO……………

NOW WE CAN SEE WHY FLUID POWER EVEN WITH ITS TERRIBLE DISADVANTAGES LIKE;

1- PRESSURE AND FLOW LOSSES IN PIPES AND CONTROL DEVICES.
2- FLUID VISCOSITY SENSITIVE TO TEMPERATURE AND PRESSURE.
3- LEAKAGE PROBLEMS.
4- COMPRESSIBILITY OF THE HYDRAULIC FLUID.

NOW, WE CREATE A GENERAL IDEA ABOUT FLUID POWER
THEN ,WHAT IS THESE WORDS MEAN (PUMP, TURBINE, AND COMPRESSOR)?

WELL THEY ARE HYDRAULIC DEVICES SIMILAR AT THE SHAPE AND THE INTERNAL COMPONENTS ,THEY ALL CONSIST OF BLADES ,SHAFT, AND EXTERNAL CASE, BUT SO DIFFERENT IN PURPOSE……..

LOOK;
PUMP IS A HYDRAULIC DEVICE THAT CONVERTS THE MECHANICAL ENERGY TRANSMITTED BY ITS PRIME MOVER (ELECTRICAL MOTOR, INTERNAL COMBUSTION ENGINE) INTO HYDRAULIC WORKING ENERGY.

TURBINE IS THE REVERSE OF THE PUMP ,IT IS CONVERTS THE HYDRAULIC ENERGY INTO MECHANICAL ENERGY TO PRODUCE ELECTRICITY, LIKE RIVER DAM TURBINES.

COMPRESSOR IS THE SAME LIKE PUMP CONVERTS THE MECHANICAL ENERGY INTO HYDRAULIC WORKING ENERGY BUT THE DIFFERENT IS THE WORKING FLUID; HOW?
IN PUMPS WE USE WATER OR PETROLEUM OILS,
BUT IN COMPRESSORS WE USE THE AIR.

THERE IS VERY IMPORTANT QUESTION NOW?!

IS TURBINE DEAL WITH THAT TOW DIFFERENT FLUIDS?
YES, THERE IS STEAM TURBINE FOR WATER , AND GAS TURBINE FOR AIR.


2 التعليقات:

  1. Unknown says
    May 12, 2009 at 6:03 AM  

    well done eng.memo
    its good information
    i want to know more about pumps please if u could
    thanks alot


    Unknown says
    May 12, 2009 at 6:19 AM  

    GOOD INFORMATION
    GOOD WAY
    IF U HAVE BOOKS PLEASE

    THANKS AND KEEP GOING


Post a Comment

Subscribe to: Post Comments (Atom)