COMPENSATOR (VERSIONS) Russian patent published in 2009 - IPC F16L51/02 

FIELD: mechanics.

SUBSTANCE: proposed compensator consists of bellows, end flanges, Hook's joint and thin-wall sleeves with stems. Outer surfaces of end flanges have RH and LH threads with lengthwise slots. Sleeves with thin-wall stems are screwed onto aforesaid threads and locked thereon by squeezing into aforesaid lengthwise slots. Hook's joint is rigidly fixed on aforesaid sleeves. In compliance with first version, aforesaid joint consists of four-slot ring and two cheeks, each having two ears fitted in the ring slots and jointed to the ring with the help of hinge axles. Ring slots and cheek ears have bearing surfaces that limit end flange relative turns. In compliance with second version, joint consists of two cheeks, each having two ears wit holes. Ears of one cheek are fitted in slots of ears of the other cheek, both cheeks being pivoted together in pairs.

EFFECT: higher reliability, expanded operating performances.

2 cl, 3 dwg