Week - 4

1.Washing machine
WORKING PRINCIPLE OF A WASHING MACHINE:

A washing machine by spinning at 800-1600 rpm helps soap and dirt with it to leave the surface of the cloth via centrifugal force and into outlet pipes hence utilizing centrifugation to both clean and partially dry the clothes loaded in it. Thus the processes are electrically controlled such as the drum valves pump, motor and heating the valve apens again and the dirty water drains out of the drums. The pump works to help get rid of the water. The valve lots clean water in again into the drums The four process are

SOAKING:

It is used to dip clothes in detergent water to remove dirt from the clothes. In this function customer need to select sook from a panel Soak-This function is available with wash timer, in 42 min of washing 27 min is soak and 15 min machine will wash the clothes

WASHING:

During the wash cycle a large plastic agitator (green) turns around, moving your clothes through the water When the wash is finished, the pump drains the water from the outer drum

RINSING:

The dirty, soapy water is drained, then the washing machine is refilled and your clothes are rewashed in clean water Spin: All the water is drained completely, then your clothes are spun very fast and excess water is removed thanks to centrifugal force

DRYER:

They work by pushing warm dry air through your wet washing to extract moisture, then cooling the now humid

air in a heat exchanger to condense the moisture, which is collected in a tank or pumped down the drain. The (now
dry) air is reheated and the cycle repeats

2.GEAR SHIFT LOGIC:

A gear shift mechanism for a manual transmission includes a shaft axially movable for selecting shift planes and rotatable for engaging the gears defining the shift planes The shaft is held in a reference shift plane by two helical springs.