Construction and Working Of Hydraulic Shock Absorber
Introduction to Shock Absorber
1. The assembly consist of sheet metal body which cover with piston and cylinder.
2. Cylinder ‘C’ houses valve ‘A’ and Valve ‘B’.
3. Cylinder’C’ is surrounded by outer tube ‘D’.
4. There is annular space between cylinder ‘C’ and Cylinder ‘D’.
5. Valve ‘A’ and ‘B’ have small orifice passing through it.
6. The annular space is half field with fluid whereas inner cylinder completely filled.
7. Cylinder ‘C’ is closed on top with head ‘H’ and small Gland ‘J’ is provided to return any fluid back to reservoir.
8. Upper eye ‘F’ is connected to vehicle frame and lower eye ‘E’ is connected to axle.
When vehicle come across a bump :
- When vehicle come across a bump the lower eye would move up and thereby fluid will passed from lower eye side of valve ‘A’ to its upper side.
- Volume of space Above Valve ‘A’ is less by volume of rod.
- Due to this fluid will exert pressure on valve ‘B’ and go to underside of valve ‘B’ into annular space.
- Passing of fluid through valve opening provide damping action.
When Vehicle Encounter A Pit :
- Similarly vehicle encounter a pit there is downward motion of lower eye .
- Cylinder ‘C’ and ‘D’ moves downward.
- Due to this above ‘A’ is compressed and it move downward below valve ‘A’ and also in annular space through valve ‘B’ damping the Shock.
Post Submitted By:
K B P Poly. Kopergaon
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