Radial piston and cylinder compressed gas motor

A radial compressed gas motor comprising a cylinder assembly providing a plurality of cylinders extending radially from an axis, a crank journaled for rotation around said axis, a piston reciprocable between a bottom dead center position and top dead center position in each cylinder, connecting means connecting each piston to said crank, each cylinder providing exhaust port means covered by the associated piston except when said associated piston is substantially at its bottom dead center position, a source of gas under pressure, valve means rotatable with said crank, said valve means connecting said source to cylinders having pistons therein substantially adjacent to said top dead center positions, said valve means also connecting cylinders having pistons therein substantially adjacent to said bottom dead center position to cylinders having pistons therein moving towards said top dead center position whereby gas within said cylinders containing extending pistons is exhausted through said exhaust ports of cylinders having ports uncovered by said pistons therein.

A radial cylinder compressed gas device comprising a cylinder block assembly providing a central axis and a cylindrical peripheral surface, said cylinder block assembly providing a plurality of peripherally spaced cylinders extending radially from said central axis open at outer ends to said peripheral surface, a non-metallic cylindrical head gasket encircling said peripheral surface closing the outer ends of said cylinders, a metallic ring encircling said head gasket tightly pressing said head gasket into fluidtight engagement with said peripheral surface, a crankshaft journaled in said cylinder block assembly for rotation about said central axis, and pistons reciprocable in said cylinders connected to said crankshaft, said head gasket providing a lateral flange engaging one side of said cylinder block when said head gasket is properly positioned on said cylinder block.

A compressed gas motor comprising a cylinder block assembly providing a central axis and a plurality of peripherally spaced cylinders extending generally radially from said central axis, a crankshaft assembly journaled for rotation about said central axis providing an eccentric crank portion eccentrically movable about said central axis, pistons reciprocable in said cylinders between a top dead center position and a bottom dead center position, and connecting rod means connecting said crank portion and pistons, said cylinder block assembly providing an exhaust port in each cylinder covered by the associated of said pistons except when said associated piston is substantially adjacent to its bottom dead center position, said exhaust port being an inclined peripherally extending slot formed in the wall of each cylinder operable to exhaust gas from cylinders without creating excessive exhaust noise.

A compressed gas motor comprising a cylinder block assembly having cylinders therein having extremities, pistons reciprocable in said cylinders between top dead center positions adjacent to said extremities and bottom dead center positions spaced from said extremities, valved means connected to each cylinder at said extremities thereof, exhaust means including exhaust ports in each cylinder open only when said pistons therein are adjacent to their bottom dead center positions, said valved means operating to supply compressed gas to said extremities of said cylinders having pistons therein commencing to move toward said bottom dead center positions, said valved means also connecting at least some of said cylinders having pistons therein moving toward their top dead center positions to said exhaust means after said exhaust ports are closed by the associated of said pistons.

A radial fluid pressure device comprising a cylinder block assembly having a central axis and a plurality of radially extending cylinders peripherally spaced around said axis, a piston in each cylinder movable between top dead center and bottom dead center positions, a crankshaft journaled for rotation around said central axis providing an eccentric crank portion, a wrist plate journaled on said crank portion, and a connecting rod pivotally connected to each of said pistons and to said wrist plate, said connection between each connecting rod and said wrist plate permitting limited pivotal movement structured so that said piston rods cooperate to limit rotation of said wrist plate with said crank portion, first lines of action through the pivot axes of said pivotal connections of each of said connecting rods being angled with respect to a second line of action between said central axis and the pivot axis of said piston rods on said pistons when said pistons are in said top dead center and bottom dead center positions.

A radial fluid pressure device comprising a cylinder block assembly providing a central axis and a plurality of cylinders peripherally spaced around said central axis, a crankshaft journaled for rotation about said central axis providing an eccentric crank portion, a wrist plate journaled on said crank portion, a piston reciprocable in each cylinder, a piston rod connecting each piston to said wrist plate, said piston rods cooperating to prevent rotation of said wrist plate, said pistons being offset with respect to said central axis to increase the effective moment arm of the pistons.