SEALING ASSEMBLY OF POWER CYLINDER STOCK Russian patent published in 2015 - IPC F16J15/30 

FIELD: machine building.

SUBSTANCE: sealing assembly of power cylinder stock contains the installed on the stock alternating two sets of sealing rings with the appropriate limiting bushings, located in the casing boring and pressed to the casing in axial direction by the pressing elements. Each sealing ring of the first set is inserted in the appropriate limit bushing installed in the casing boring with clearance, and is tightly installed on the stock. Each sealing ring of the second set is located on the appropriate limiting bushing relatively to the stock with clearance, and is tightly installed relatively to the casing. At that each of the sealing rings of the first and second sets is made out of the foil of thermal expanded graphite and reinforcements. Each of the limiting bushings of the first and second sets is made with possibility to limit the appropriate sealing ring from the side of the pressing element.

EFFECT: increased tightness of the sealing assembly of the power cylinder stock and increased reliability of the sealing assembly.

2 cl, 3 dwg