151746 ⎘
Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging using metallic coiled or blade springs Coiled spring along the entire circumference
OIL CONTROL RING
#2Oil control ring
#3Oil ring for internal combustion engine and piston assembly including the same
#4Play-free oil scraper ring
#5Multi-piece oil ring
#6Oil ring
#7A Piston Engine with a Transfer Valve Assembly
#8Oil Ring for a Piston Assembly
#9Piston, oil control ring therefor and method of construction thereof
#10Piston ring configured to reduce friction
#11Seal device
#12Structure of piston ring
#13Piston with oil cooling passage and method of construction thereof
#14Oil scraper ring
#15Oil scraper ring
#16Piston ring for an internal combustion engine
#17Piston ring for an internal combustion engine
#18Internal combustion engine oil ring
#19INTERNAL COMBUSTION ENGINE OIL RING
#20Seal assembly for an internal combustion engine
#21Multi-part piston ring
#22Multi-piece oil ring
#23Oil control ring with ferrous body less than 2.0 millimeters high for internal combustion engines
#24OIL RING MECHANISM OF A PISTON
#25Piston ring
#26Wire for I-shape oil rings and producing method of the same
#27Oil wiper ring
#28Multi-rail piston ring
#29Combined oil ring
#30Wire material for coil expander and coil expander
#31Oil ring for internal combustion engine
#32Combined oil ring
#33SCRAPER RING
#34Oil control ring for pistons of internal combustion engines
#35Combination oil ring
#36Oil ring, manufacturing method thereof, and piston structure using the oil ring
#37Combined oil control ring
#38Oil ring