Arpit Presentation

7/29/2019 Arpit Presentation

1/22

PRESENTED BY

ARPIT THOMAS

09ME08B.TECH FINAL YEAR


2/22

INTRODUCTION

HYDRAULICS IS BASED ON A VERYSIMPLE FACT OF NATUREYOUCANNOT COMPRESS A LIQUID

AIRCRAFT HYDRAULICS IS DEFINED ASA SYSTEM WHERE LIQUID UNDERPRESSURE IS USED TO TRANSMITENERGY


3/22


4/22

Pascals Law

Pressure exerted on a fluid in an enclosed

container is transmitted equally and

undiminished to all parts of the container and

acts as right angles to the enclosing walls.


5/22

BASIC COMPONENTS

RESERVOIR

POWER PUMPS

CHECK VALVES SELECTOR VALVES

ACCUMULATOR

PRESSURE REGULATOR

HAND PUMPS

ACTUATOR


6/22


7/22

THE FUNCTION OF THE

HYDRAULIC SYSTEM POWER

PUMPS IS TO CHANGEMECHANICAL HORSEPOWER TO

HYDRAULIC HORSEPOWER


8/22

Medium volume of fluid

under pressure.


9/22

Moves a large

volume of fluid

under low pressure


10/22

THESE ARE HYDRAULICDEVICES WHICH PERMIT FLOW

OF FLUID IN ONE DIRECTION

ONLY


11/22


12/22


13/22

HYDRAULIC FLUIDS The fluid used in aircraft hydraulic systems is

one of the systems most important parts.

The fluid must flow with a minimum ofopposition.

Must be incompressible

Good lubricating properties Inhibit corrosion and not attack seals

Must not foam in operation


14/22

ACCUMULATOR

All accumulators consist of a high strength

container divided by some form of movablepartition into toe sections, or compartments.

One compartments connected to the hydraulic

pressure manifold, and the other is filled with

compressed air or with nitrogen.


15/22

Accumulators


16/22

ACTUATOR

THE FUNCTION OF ACTUATING CYLINDER IS TOTAKE THE PRESSURE AND HYDRAULIC FLUIDFLOW AND CHANGE THEM INTO EITHER

LINEAR OR ROTARY MOTION

TYPES OF ACTUATOR

SINGLE PISTON ,SINGLE ROD

SINGLE PISTON ,DOUBLE ROD

DOUBLE PISTON DOUBLE ROD


17/22

PRESSURE REGULATOR

PURPOSE

TO REDUCE THE LOAD ON THE HYDRAULIC

PUMP

TO KEEP THE HYDRAULIC PRESSURE WITHIN THEOPERATING RANGE


18/22


19/22

HAND PUMPS

THE HAND PUMP CONVERTS THE HUMANPOWER TO HYDRAULIC HORSEPOWER


20/22

ADVANTAGES

Two major advantages

Ease with which force can be transmittedover large distances and into sealed

compartments.

Large gain in mechanical advantage made

possible by varying the size of pistons.


21/22

IT IS LIGHTER IN WEIGHT THAN ALTERNATE

EXISTING SYSTEMS

IT IS RELABLE

IT CAN BE EASILY MAINTAINED

IT CAN DEVELOP UNLIMITED FORCE AND

TORQUE


22/22

ANY

QUERIES???

Documents

Arpit Presentation