HONDA
CB4OOT
TECHNICAL FEATURES
Although the counterweights will balance the inertia
force at T.D.C. and B.D.C., they will create a corresponding
horizontal imbalance of their own at
90' BTDC and 90"
ATDC due to centrifugal force. The balancers are designed
to counteract this force including the inertia force created
by the reciprocating.
CENTRIFUGAL FORCE
ON COUNTERWEIGHTS
(1)
TDC
The counterweight creates a centrifugal force
to neutralize one-half of the inertia force. The
remaining inertia will be totally balanced by
two
balancen. Each balancer counteracts one-
fourth of the total inertia.
9
-
25 50
z
c3
C=,
e
25
50
25
The centrifugal force on the
counterweight
is
balanced by the
(3)
BDC
The inertia force
is
balanced by the
balancers.
counterweight as in
(1).
However,
the centrifugal force acting on the
counterweight is
still
present. The
centrifugal force on the balancers
cancels this remaining force.
50
The centrifugal force on the
counterweight neutralizes one-half
of the downward inertia force. The
balancers counteract the remainder.
Date of Issue: September, 1977
o
HoNDA MOTOR
co.,
LID.
18-3
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