Asymmetric cam transmission with coaxial counter rotating shafts

A pump engine system comprising:

• a housing having a rotational axis;
• an axial hub within the housing;
• a plurality of slide bodies mounted within said housing, each slide body having a first side and a second side;
• first and second cam plates mounted for axial rotation within said housing in opposed facing relation, said first and second cam plates having identical cam surfaces with a plurality of lobes, each lobe having an asymmetrical lobe profile,
• said first cam plate engaging the first side of said slide bodies, said second cam plate engaging the second sides of said slide bodies;
• an axial first input shaft engaged with said first cam;
• a tubular coaxial second input shaft engaged with said second cam,
• a first propeller mounted on said first shaft;
• a second propeller mounted on said second shaft;
• a radial output piston shaft engaged with at least one of said slide bodies wherein a terminal end of said radial output shaft extends radially through said housing;
• a piston arranged at a terminal end of said radial output piston shaft;
• and
• a piston housing surrounding said piston, said piston housing having a fluid inlet opening and a fluid outlet opening,
• wherein equal counterrotation of said first and second propellers drives radial linear movement of said radial output shaft and a corresponding reciprocating pumping movement of said piston within said piston housing to pump a fluid in through said inlet and out through said outlet.

A drive transmission comprising:

• a housing having a rotational axis, a first end cap and a second end cap;
• a plurality of slide bodies mounted on guides radially spaced from the rotational axis and extending parallel to said rotational axis between the first and second end caps,
• each slide body having an input end with a follower and an output end with a driver;
• input and output swash cam plates mounted for axial rotation within said housing in spaced relation, said input and output swash cam plates having identical swash cam surfaces with a plurality of lobes, each lobe having an asymmetrical lobe profile, said input swash cam plate engaging the followers on the input sides of said slide bodies, said output cam plate engaging the drivers on the output sides of said slide bodies,
• wherein rotation of said input swash cam plate causes an equal counter-rotation of said output swash cam plate;
• an axial input shaft selectively engaged with said input swash cam;
• an axial inner output shaft engaged with said input swash cam;
• a tubular coaxial outer output shaft engaged with said output swash cam, wherein rotation of said input shaft drives rotation of said axial inner output shaft and counter-rotation of said coaxial outer output shaft.