Piston assembly for hydraulically operated piston-type...

Details Piston assembly for hydraulically operated piston-type... Piston assembly for hydraulically operated piston-type...

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 9/50 (2006.01) B61K 7/02 (2006.01)

Patent

CA 2180508

The invention relates to a piston assembly for use in a hydraulically operated piston- type retarder. The piston assembly comprises a piston rod 1, a piston head 2, a speed spring 3, a closure member 4, a spacer member 5, a retainer member 9 and alock nut 6. The piston head 2 is provided with a set of first hydraulic fluid passageways with corresponding energy extraction ports 8 and a set of second hydraulic fluid passageways with corresponding idling ports 7. A method of retarding wagon stock is also provided.

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