Pneumatic vane motor

Abstract

A pneumatic vane motor comprising a housing ( 10 ) with a cylinder ( 11 ), two end walls ( 13,14 ), and a rotor ( 18 ) journalled in the housing ( 10 ) and carrying one or more pairs of sliding vanes ( 31 ), and vane supporting pins ( 32 ) longitudinally movable in transverse bores ( 33 ) in the rotor ( 18 ) and forming spacers between two diametrically opposite vanes ( 31 ), and the rotor ( 18 ) having a coaxial bore ( 48 ) with a closed end ( 49 ) and an open end ( 50 ) closed by a removable plug ( 51 ), wherein the coaxial bore ( 48 ) intersects the transverse bores ( 33 ) and being filled with a lubricant for providing lubrication of the vane supporting pins ( 32 ).

1 - 6 . (canceled) 
     
     
         7 . A pneumatic vane motor comprising:
 a housing with a cylinder;   a rotor rotatably journalled in the housing and carrying at least one pair of sliding vanes for sealing contact with the cylinder, wherein the vanes in each pair are disposed diametrically opposite each other; and   at least one vane supporting pin longitudinally movable in one or more transverse bores in the rotor and forming a spacer between the two diametrically opposite vanes of each pair, and   wherein the rotor has a coaxially extending bore intersecting said one or more transverse bores and forming a lubricant reservoir for continued supply of lubricant to the at least one vane supporting pin.   
     
     
         8 . The vane motor according to  claim 7 , wherein:
 said bore has a closed end and an open end, and   said open end is closed by a removable plug.   
     
     
         9 . The vane motor according to  claim 7 , wherein each vane supporting pin comprises a spring for compensating for plays between the vane supporting pin and the vanes. 
     
     
         10 . The vane motor according to  claim 8 , wherein each vane supporting pin comprises a spring for compensating for plays between the vane supporting pin and the vanes. 
     
     
         11 . The vane motor according to  claim 9 , wherein each vane supporting pin further comprises:
 a sleeve shaped element with a closed bottom end and an open end; and   a spindle shaped stud member movably received in said sleeve shaped element through said open end, and   wherein said spring comprises a compression spring located between the bottom end of said sleeve shaped element and the stud member.   
     
     
         12 . The vane motor according to  claim 10 , wherein each vane supporting pin further comprises:
 a sleeve shaped element with a closed bottom end and an open end; and   a spindle shaped stud member movably received in said sleeve shaped element through said open end,   wherein said spring comprises a compression spring located between the bottom end of said sleeve shaped element and the stud member.   
     
     
         13 . The vane motor according to  claim 11 , wherein said sleeve shaped element and said stud member comprise interacting shoulders for limiting an inward movement of said stud member relative to said sleeve shaped element. 
     
     
         14 . The vane motor according to  claim 12 , wherein said sleeve shaped element and said stud member comprise interacting shoulders for limiting an inward movement of said stud member relative to said sleeve shaped element. 
     
     
         15 . The vane motor according to  claim 7 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         16 . The vane motor according to  claim 8 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         17 . The vane motor according to  claim 9 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         18 . The vane motor according to  claim 10 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         19 . The vane motor according to  claim 11 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         20 . The vane motor according to  claim 12 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         21 . The vane motor according to  claim 13 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes. 
     
     
         22 . The vane motor according to  claim 14 , wherein the number of transverse bores and the number of vane supporting pins are just one for each pair of vanes.