Single Screw Mechanism with Gaterotor Housing at Intermediate Pressure.
Patent, Filed 31 May 89, patented 28 May 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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This patent discloses an invention that is an improvement upon conventional single-screw mechanisms in that the gaterotor housing is substantially isolated from both the inlet and outlet port areas by a window opening path through the casing whereby the gaterotor teeth pass for engagement with the mainrotor. The window path has been extended and has close clearances provided on both sides of the entering gaterotor teeth creating two barriers to internal leakage thereby reducing window path losses, increasing volumetric efficiency and allowing higher pressure capability.
- Hydraulic and Pneumatic Equipment
- Couplers, Fasteners and Joints