02-32
2) Timing Chain and Gear
(1) Timing chain
(2) Tensioner
Tensioner adjusts the chain tension to keep it tight during engine running. This reduces the wear in
guide rail and spoke.
▶
Hydraulic tensioner assembly
1.
Operating principle
- Use the spring tension in tensioner and hydraulic pressure
2.
Tensioner type
- Compensation and impact absorbing
3.
Static and dynamic force
- Spring + Hydraulic pressure
-
Simple layout: optimized timing, enhanced
NVH
-
Single stage layout: minimized chain load
-
The brass link on crankshaft is at symmetric
position of that on camshaft.
Chain upper bush
- Single bush type (112 EA)
Chain lower bush
- Single bush type (60 EA)
Plunger
Check valve
Housing
Spring