F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 9/08 (2006.01) F16J 1/08 (2006.01) F16J 9/06 (2006.01) F16J 9/12 (2006.01) F16J 9/20 (2006.01) F16J 9/28 (2006.01) F02F 3/00 (2006.01)
Patent
CA 2144355
A piston and ring assembly operative within a cylindrical bore wall to retain pressurized fluid to one side of the assembly, the piston having a crown and an annular side wall for movement along the bore wall. The assembly comprises a piston having at least on annular groove (the groove having an enlarged height of at least 4mm) in the side wall of the piston; at least two split compression rings in each said groove effective to each substantially annularly engage the bore wall, the rings having mating superimposed surfaces to facilitate movement of the rings in unison as a result of friction therebetween; a compressed elastomeric ring (constituted of polysilanes, such as silastic with strengtheners) disposed in said groove (having a compression of 10-20% at room temperature), acting between the piston and ring most- remote from said piston crown, to resiliently bias at least said most-remote-ring against the bore wall; a solid film lubricant coating essentially all the sides of said groove; and non-mating surfaces of solid lubricant carried by said rings to effect reduced friction between said rings and groove when being biased by said elastomeric ring.
Nageswar Rao V. Durga
Yeager David Alan
Ford Motor Company Of Canada Limited
Sim & Mcburney
LandOfFree
Ultra low crevice volume piston assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra low crevice volume piston assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra low crevice volume piston assembly will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1424651