Impulse torque generator for a hydraulic power wrench

Details Impulse torque generator for a hydraulic power wrench Impulse torque generator for a hydraulic power wrench

1995-04-07

1998-04-21

Stodola, Daniel P.

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

Fluid coupling

For transmitting limited pulsating torque

81463, B25B 2102

Patent

active

057411867

ABSTRACT:
An impulse torque generator, for a hydraulic impulse torque wrench, includes a liner driven by a rotor. The liner has an inner cavity with at least two pairs of sealing surfaces around its inner peripheral surface. A main shaft extends coaxially through the liner and includes at least two projections. Also, at least two driving blades are provided for generating an impulse torque on the main shaft by abutting the projections of the main shaft.

REFERENCES:
patent: 2343596 (1944-03-01), Van Sittert et al.
patent: 3196636 (1965-07-01), Piatt et al.
patent: 3214941 (1965-11-01), Shulters
patent: 4785693 (1988-11-01), Minamiyama et al.
patent: 4836296 (1989-06-01), Biek
patent: 4854916 (1989-08-01), Schoeps et al.
patent: 4920836 (1990-05-01), Sugimoto et al.

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