Audi Q7 - Push Rod Tensioner; Design; Piston and Push Rod Snake

13
Push rod tensioner
Design
637_098
637_100
5-piece flexible push rod made of
plastic "Snake" (5)
Guide tube/pressure chamber (3)
Belt retractor shaft as torsion bar
spring (6)
Gear (7)
Guide (8)
Piston (2) with:
• seal
• stopper
• spacer
Plugged electrical connection (1) with:
• igniter
• pyrotechnic propellant charge
Braking wedge
(4)
Piston (2) and push rod "Snake" (5)
The guide tube/pressure chamber (3), refer to Fig. 637_098,
accomodates the following:
• Plugged electrical connection with igniter and pyrotechnic
propellant charge (1)
• 5-piece flexible push rod "Snake" (5) and "Snake" guide
• Pressure chamber (3)
• Braking wedge (4)
• Piston (2) (including seal, stopper and spacer)
Piston (2) with:
• seal
• stopper
• spacer
4 short parts of the "Snake" Main part of the "Snake"
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