ApplicationNo. 979538 filed on 11/26/1997
US Classes:418/236, NON-RADIALLY POSITIONED SLIDING VANE OR ABUTMENT415/141, Yieldingly or pivotedly mounted or flexible blade415/904, TOOL DRIVE TURBINE (E.G., DENTAL DRILL, ETC.)418/266, Spring biased433/132Rotary fluid turbine
ExaminersPrimary: Freay, Charles G.
Attorney, Agent or Firm
Foreign Patent References
International ClassF03C 002/00
AbstractA fluid reaction device (10) is provided having a rotor (90) with vanes (92) pivotably connected thereto. The device (10) includes an entrance (30) for elevated pressure fluid and an outlet (40) for discharge of the fluid after contacting the rotor (90). The elevated pressure fluid passes from the entrance (30) into a high pressure area. The high pressure area is in contact with inlet ports (74) accessing a cylinder (70) within the device (10). The cylinder (70) supports the rotor (90) with a rotational axis (M) of the rotor (90) off center with respect to a central axis (N) of the cylinder (72). The elevated pressure fluid causes the rotor (90) and an attached output shaft (97) to rotate. The rotor (90) includes a trunk (24) with a plurality of posts (93) extending therefrom and with vanes (92) connected to the posts (93) through hinges (94). The vanes (92) can pivot from a first position collapsed against the trunk (24) to a second position spaced away from the trunk (24). The vanes (92) thus can contact a cylindrical wall of the cylinder (70) while the rotor (90) rotates. Exhaust ports (76) are spaced from the inlet ports (74) and provide communication with a low pressure area which exhausts low pressure fluid to the outlet (40).