Joyner JNSZ1600DL, Руководство пользователя

Страница: 98 / 138

107
Fig.165
2.2 Lower body (air system)—description and function of accessories Excepted that connecting throttle
valve to accelerator pedal by a lever, the following parts should be installed on the lower body.
·
throttle
valve position sensor
·
stepper motor
·
hot water loop near the throttle valve and idle air by-pass
·
absolute
pressure signal port in the lower throttle valve (necessary to be connected with pressure sensor)
·
PCV
recirculation pipe
——Throttle valve position sensor “PF2C”.
Figure 166 shows the position sensor case structure, also the relationship between output characteristic,
output signal and throttle valve opening ange.
Fig.166
·
Sensor component is consisted of a potentiometer. The slipping ruler of potentiometer is driven directly
by accelerator pedal which is proportional with throttle valve opening.
·
the potentiometer is inserted into
plastic case with two baffles on the bracket. There are two holes in the bracket for installing the
potentiometer on throttle valve.
·
there is spline on the shaft. The spine provides data about throttle
position. The data is used to confirm idle operation condition (accelerator pedal released), full load
(accelerator pedal depressed) and accelerating or decelerating conditions.