초록 ▼

A 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, in

A 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 chamber 80. The high pressure chamber 80 is in contact with inlet ports 74 accessing a cylinder 72 within the device 10. The cylinder 72 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 78 of the cylinder 72 while the rotor 90 rotates. Exhaust ports 76 are spaced from the inlet ports 74 and provide communication with a low pressure chamber 82 which exhausts low pressure fluid to the outlet 40.

대표청구항 ▼

A fluid reaction motor receiving fluid as input and having a rotating shaft as output, comprising, in combination: a rotor including a substantially rigid trunk, a plurality of vanes, and a hinge means integrally formed with said trunk and vanes to pivotably attach said vanes to said trunk, said rot

A fluid reaction motor receiving fluid as input and having a rotating shaft as output, comprising, in combination: a rotor including a substantially rigid trunk, a plurality of vanes, and a hinge means integrally formed with said trunk and vanes to pivotably attach said vanes to said trunk, said rotor formed from thermoplastic material; a hollow cavity, said cavity including means to inlet fluid into said cavity, means to exhaust fluid out of said cavity, and means to rotatably support said trunk of said rotor within said cavity; an output shaft coupled to said rotor such that when fluid enters said cavity, said shaft is caused to rotate; said rotor including said shaft supported on bearing means on a hub, said shaft rotatably supported at a point offset from a central axis of said cavity similar to an amount of spacing between said central axis of said cavity and said bearing means on an end wall; and said output shaft rigidly attached to said trunk of said rotor, whereby when said rotor rotates, said output shaft is caused to rotate; wherein said means to rotatably support said rotor within said cavity includes a means to support said rotor with a rotational axis of said rotor spaced from a central axis of said hollow cavity; wherein a seal point is provided between said rotor and said cavity, said seal point located between said inlet means and said exhaust means, said seal point defined by at least one portion of said rotor contacting said cavity between said inlet means and said exhaust means; whereby fluid passing through said inlet means and into said cavity is prevented from accessing said exhaust means by passing around a side of said rotor closest to said seal point; wherein said rotor includes a recess adjacent each vane, each said recess having a contour which can receive an adjacent said vane therein when said vane is pivoted about said pivotable attachment means; wherein said pivotable attachment hinge means includes means to apply a force causing extension of said vane out of an adjacent said recess; wherein said inlet means includes at least one inlet port passing through said cavity, said inlet ports in fluid communication with a source of elevated pressure compressible fluid; wherein said outlet means includes at least one outlet port passing through said cavity, said outlet ports in fluid communication with a region having lower pressure than said source of elevated pressure compressible fluid, said outlet ports oriented on a side of said seal point opposite said inlet ports around a side of said cavity including said seal point and spaced from each other on a side of said cavity opposite said seal point by an angular displacement, with reference to said central axis of said cavity, by an angle not less than 360°divided by a number of said vanes extending from said trunk; whereby compressible fluid is prevented from passing from said inlet ports to said outlet ports directly without rotor rotation taking place; wherein said hollow cavity has an inside wall which exhibits a radius of curvature adjacent said seal point greater than a radius of said rotor when said vanes are collapsed against said trunk, and wherein said vanes include tips distant from said hinge, said tips of said vanes positioned to allow contact with said wall of said cavity at all times, whereby compressible fluid is prevented from passing from said inlet ports to said outlet ports without rotor rotation; wherein said trunk of said rotor includes a plurality of posts extending from said trunk, each said post including one of said hinges, each said vane having a shape which allows said vane to be pivoted into an adjacent said recess: said cavity including a substantially flat circular end wall with a center thereof oriented along a central axis of said cavity, said end wall bearing means including a circular bearing therein at said center thereof sized to receive a cylindrical hub extending from one end of said rotor at a point oriented along said central axis of said rotor, such that said rotor is supported within said bearing, said bearing offset from said central axis of said cavity.