Measuring and testing – Dynamometers – Responsive to torque
Patent
1984-09-17
1986-02-04
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to torque
G01L 316
Patent
active
045677786
ABSTRACT:
A quick connect and disconnect coupling assembly for coupling a dynamometer to an engine wherein the coupling assembly may be used for both automatic and manual transmission engines. The coupling assembly includes a plurality of circumferentially spaced apart inertia actuated clamping arms which are pivotally attached to a drive member. One end of each clamping arm includes a gear section which is engageable with the engine ring gear and the other end of the clamping arm is operated on by a centrifugal mass assembly which is slidably attached to the drive member. Rotational movement of the drive member results in radial movement of the centrifugal mass assembly for applying a moment force on a respective clamping arm about its rotational axis. In order to prevent excessive clamping force when the engine speed increases, an abutment on the centrifugal mass assembly engages a stop on the drive member for bottoming or stopping the outward radial movement of the centrifugal mass assembly. Further, it has been found that when the effective center of gravity for the clamping arm is substantially coincident with its center of rotation, the clamping force remains virtually unchanged after the centrifugal mass assembly has bottomed out.
REFERENCES:
patent: 4023405 (1977-05-01), Larson
patent: 4092855 (1978-06-01), Kinney
patent: 4182166 (1980-01-01), Herr, Jr.
patent: 4199979 (1980-04-01), Herr, Jr. et al.
patent: 4277972 (1981-07-01), Wolschlager
Maas Charles A.
Wolschlager Gerald J.
Modular Data Systems, Inc.
Ruehl Charles A.
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