| 摘要 |
A cris-cross pattern of flow channels serves to divide the flow of fluid and then cross the flow to cause an impact between the flow in each channel to impact against each other to reduce the decibels and noise level created by the flowing of the fluid. In a pneumatic surgical drill the spent air used to power the vane motor is diverted so that the flow of is divided in separate flow paths that cross to allow the air that flows from one of the divided channels impinges on the air flowing from the other of the divided channels. In one embodiment the divided channels or flow passageways is formed in the end cap of the housing of a pneumatic surgical drill and in another embodiment the flow diverter with the divided passageways or channels is formed in a plug the fits into the coaxial hose that connects to the housing of the pneumatic surgical drill.
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