Hydraulic torque impulse generator

Details Hydraulic torque impulse generator Hydraulic torque impulse generator

1998-06-03

2000-08-29

Lillis, Eileen Dunn

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Fluid coupling

For transmitting limited pulsating torque

464 26, 464 28, 277926, 173 935, F16D 3102

Patent

active

061100455

ABSTRACT:
A hydraulic torque impulse generator (16) of the kind having a motor rotated drive member (18;50) formed with a fluid chamber (19;53), an impulse receiving output member (20;51) coaxial with the drive member (18;50) and extending into the fluid chamber (19;53), a hydraulic peak generating mechanism (24-27;54-59) in the fluid chamber (19;53) for producing torque impulses at relative rotation between the drive member (18;50) and the output member (20;51), and a variable volume accumulator chamber (32;64) located in the drive member (18;50) and connected to the fluid chamber (19;53) for compensating for occurring volume changes in the hydraulic fluid, wherein the accumulator chamber (32:64) is divided into a first compartment (40;71) and a second compartment (42;72) by an elastically deflectable membrane (39;73), a passage (43;65) connects the first compartment (40;71) to the fluid chamber (19;53), and the second compartment (42;72) comprises at least partly a yeildable means for biassing the membrane (39;73) toward the first compartment (40;71), and a closure unit (36;66,68) is arranged to form a clamping means for retaining the membrane (39;73) and for forming partly the accumulator chamber (32;64).

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