Operating Principle; Vacuum Consumption; Output Characteristics - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

DI04-32
Operating principle: Balance between original vacuum pressure and magnetic force (see above figure)
• Normal state (Fig. A): Original vacuum and seat section, 3 stoppers keep sealing
• Duty up state (Fig. B): Original vacuum pressure is connected to inside of diaphragm chamber
• Duty down state (Fig. C): Increased diaphragm chamber pressure is connected to atmosphere to compensate the
pressure.
Operating principles when duty is applied from 0 to 50 %
Vacuum consumption: Compared to 50 % of duty, ON/OFF periods are most unstable and vacuum
consumption is most high.
Flowing
volume

Output Characteristics

CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
Floating plunger
DUTY 50%
Output C/V
Stroke
(mm)
Max. Distance 1mm
Y220_04030
Y220_04031
Up
Down
Y220_04032
EXHAUST SYSTEM
DI ENG SM - 2004.4