Pulse motor nutrunner

Details Pulse motor nutrunner Pulse motor nutrunner

B - Operations, Transporting

23

P

121/6

B23P 19/06 (2006.01) F01C 13/02 (2006.01)

Patent

CA 1078268

ABSTRACT OF THE DISCLOSURE A nut running tool of the non-impacting type is dis- closed for transmitting controlled torque to a driven article. The tool produces a succession of torque pulses which provides a relatively small degree of reaction torque returned to the operator as compared with a high degree of torque delivered to the article. The tool has a pulse torque transmitting air motor comprising a liner defining a rotor chamber, a rotor supported in the chamber for relatively angular movement, a single blade co-extensive with the rotor projecting radially from the latter into bearing relation with a cylindrical wall of the chamber, and means for causing live air to be alternately admitted and vented from areas of the chamber at opposite faces of the blade so as to cause the rotor to oscillate forwardly and reversely about its axis.

326092

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