FLUID-PRESSURE TIGHTENER FOR A DEVICE FOR TIGHTENING BELT (CHAIN) Russian patent published in 2004 - IPC

FIELD: mechanical engineering.

SUBSTANCE: tightener has hollow housing (1), bushing (2) with the built-in check valve, shackle (4) with piston (5), which forms a precision pair with bushing (2), load-bearing spring (7), telescoping rubber collar (6) for securing housing (1) to shackle (4). Bushing (2) is screwed in housing (1). From the side of the larger size, the face of bushing (2) is provided with a bore for seat (3) of the check valve and passages (10) for the connection with the space of load-bearing spring (7). The face of seat (3) is provided with slot (12) for oil supply to the check valve.

EFFECT: enhanced reliability.

2 cl, 5 dwg