7/24/2019 handos

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The schematic of the propulsion system is composed of an (a) engine

specically a Honda GX35 4-Stroe engine! (") a clutch #hich is a simple

friction disc pull type clutch! (c) "icycle roller chain! (d) shafts and (e) a

#heel$ The engine #ill transmit po#er "y a shaft through the clutch to

another shaft #ith a sprocet attached$ This shaft #ill transmit po#er %ia

roller chain to the a&le of the #heel #ith another sprocet attached on it$

Since this clutch is a friction disc pull-type clutch! the action of pressing the

pedal pushes the release "earing (e$g$ thrust "earing) into the clutch!

pushing on the diaphragm spring and engaging the %ehicle dri%e$ 'nother

action of pressing the pedal pulls the release "earing! pulling on the

diaphragm spring and disengaging the %ehicle dri%e$ hen the %ehicle dri%e

is engaged "y the clutch! the po#er #ill "e transmitted %ia transmission

system #hich #as specied earlier thus propelling the %ehicle$

nno%ation *+ ,eplacement of steel chassis "y an aluminium framechassis

'luminum is lighter than steel$ t is also relati%ely stronger and cheaper

than other metals$ 'nd more importantly! it has a %ery high strength-to-

#eight ratio$

nno%ation .+ ,eplacement of "er glass "y car"on "er

/ar"on "er orcar"on "re is a material consisting of "ersa"out 50

*1 micrometres in diameter and composed mostly of car"onatoms$ The

properties of car"on "ers! such as high sti2ness! high tensile strength! lo#

#eight! high chemical resistance! high temperature tolerance and lo#thermal e&pansion mae it %ery applica"le for the replacement of "er glass$

t also has a %ery high strength-to-#eight ratio! and is e&tremely rigid$ Thus

car"on "er #ill replace "er glass #hich is relati%ely hea%ier and ha%e

higher health riss (e$g$ irritate the eyes! sin! nose! throat and the

respiratory system! dyspnea ("reathing diculty) sore throat! hoarseness

and cough)$

nno%ation 3+ 'ddition of Speedometer

There is a certain speed #here po#er is ma&imum thus o"tainingoptimum energy eciency$ 'n addition of a speedometer #ill gi%e us the

range of speed that our %ehicle #ill "e running to o"tain energy eciency

%ery near to optimum$