F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/15, 110/18
F02M 21/12 (2006.01) F02B 45/02 (2006.01) F23J 7/00 (2006.01) F02B 1/04 (2006.01)
Patent
CA 1307176
ABSTRACT The present invention relates to an arrangement in an injection mechanism for powder and the like, said arrangement comprising a movable, preferably disc-shaped member (II) and two substantially stationary members (I, III) adjacent said movable member (II) which comprises a number of througholes or chambers (6), said stationary members having surfaces which fit exactly to the surface of said disc-shaped member, and in which holes (1-5) communicating with a powder supply, a propel- lant gas source and a powder-receiving unit, respectively, are formed, the arrangement being such that, in defined relative positions, one of said holes (6) in said movable member (II) in alignment with one of said holes (1-5) in said stationary members, to be filled with or emptied of powder by pressure gas acting in the hole. What characterises the invention is that the sur- faces of said stationary members (I, III) facing said movable member have spaced-apart depressions (7), each of which is connectible, via control means (8), with A pressure oil source, and that a device biassing said members (I, II, III) and exerting an adjustable spring action is adapted to counteract forces generated by the oil pressure in said depressions (7) and urging said discs apart, the spring action and the oil pressure being adjusted and controlled such that the yaps which are necessary for the function, are established and maintained between said discs.
550279
Abom Jan
Fetherstonhaugh & Co.
Tornqvist Bengt Gunnar
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