Axial piston machine having a plurality of mechanically actuated rotary valves

A device for the handling of flows of fluid through ports and chambers, comprising, in combination,

• a housing with a therein revolvably borne rotor which has a plurality of cylinders with therein reciprocable pistons, while said rotor is provided with a longitudinal medial axis and with a radially planar head face which is normally directed relative to said axis, with said cylinders provided individually around angularly spaced axes which are radially distanced from said axis by a first radial distance and which port into and through said head face, while said housing includes a housing portion which houses a plurality of valves which are individually moveable around their respective longitudinal medial valve axes, with said valves having radially planar tip faces which are directed towards said head face of said rotor, with said valve axes parallel to said axis of said rotor but angularly spaced and radially distanced from said axis of said rotor by a second radial distance, with said housing portion provided with ports and said valves provided with passages which extend from said tip face of the respective valve through the respective valve to a rear face of the respective valve, while said second radial distance is greater than said first radial distance, said valves and said rotor are provided with a transmission to move said valves around said valve axes in a fixed relation relative to the rotary velocity of said rotor, said passages alternatingly communicating and discommunicating a respective port of said ports of said housing portion with a respective cylinder of said cylinders of said rotor when said valves are moved around their valve axes;
• and an improvement which includes
• gearing means provided in said transmission on said rotor and on said valves with teeth of gears on said valves meshing with a gear on said rotor to reverse the rotary direction of said valves relative to the rotary direction of said rotor.

A device for the handling of flows of fluid through ports and chambers, comprising, in combination,

• a housing with a therein revolvably borne rotor which has a plurality of cylinders with therein reciprocable pistons, while said rotor is provided with a longitudinal medial axis and with a radially planar head face which is normally directed relative to said axis, with said cylinders provided individually around angularly spaced axes which are radially distanced from said axis by a first radial distance and which port into and through said head face, while said housing includes a housing portion which houses a plurality of valves which are individually moveable around their respective longitudinal medial valve axes, with said valves having radially planar tip faces which are directed towards said head face of said rotor, with said valve axes parallel to said axis of said rotor but angularly spaced and radially distanced from said axis of said rotor by a second radial distance, with said housing portion provided with ports and said valves provided with passages which extend from said tip face of the respective valve through the respective valve to a rear face of the respective valve, while said second radial distance is greater than said first radial distance, said valves and said rotor are provided with gearing means which form a transmission to move said valves around said valve axes in a fixed relation relative to the rotary velocity of said rotor, said passages alternatingly communicating and discommunicating a respective port of said ports of said housing portion with a respective cylinder of said cylinders of said rotor when said valves are moved around their valve axes;
• and an improvement which includes
• the provision of second passages in said valves and second ports in said housing portion with said second passages moveable over said second ports and extending from said tip faces through portions of said valves to end in radial valve ports on the radial peripheries of said valves, while said passages and said second passages form in said tip faces control ports around control port centers with said centers of said control ports radially distanced from said axes of said valves by equal radial control port distances.