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|1. (WO2018205015) HYDROSTATIC VARIATOR BASED ON RADIAL PISTON MACHINES|
|Applicants:||KINETICS DRIVE SOLUTIONS INC.
|Title:||HYDROSTATIC VARIATOR BASED ON RADIAL PISTON MACHINES|
A hydrostatic drive system comprises a housing, two hydrostatic radial piston machines within the housing and fluidly coupled to each other, and an intermediate control plate element common to each of the two hydrostatic radial piston machines. Each of these hydrostatic radial piston machines comprises a radial cylinder block comprising a plurality of bores, a plurality of pistons corresponding to the plurality of bores, a cam ring, two control plate elements in which one of the two control plate elements is the intermediate control plate element, and a plurality of pass through channels in the radial cylinder block. Each of the two control plate elements in each of the two hydrostatic radial piston machines includes a total of at least two control ports. Further, the intermediate control plate element is rotationally fixed in the housing between the radial cylinder blocks in the two hydrostatic radial piston machines. A power split and continuously variable transmission comprising the hydrostatic drive system.