F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 1/00 (2006.01) F04B 53/14 (2006.01) F16J 9/00 (2006.01)
Patent
CA 2041269
Abstract of the Disclosure The Assembly comprises a piston body having a longitudinal axis to which are added, in inter- layered fashion, separate piston-ring lands, and spacers. In one embodiment, a pair of rider rings are coupled to the piston body, in spaced apart locations, to guide the piston assembly in reciprocation, and to space the piston-ring lands away from the surface of an enclosing cylinder. The lands have a diameter which is slightly less than that of the rider rings. The lands are formed of à ceramic material to offer, thereby, a sub- stantially wear-resistant surface to the piston rings which are set between pairs of the lands, and about the spacers. The body is centrally bored and tapped, and the lands and spacers are centrally apertured; a headed bolt has the shank thereof in penetration of the lands, spacers and rider rings, and thread- edly engaged with the tapped bore, to secure the assembly together.
Dresser-Rand Company
Swabey Ogilvy Renault
LandOfFree
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