System for a bent axis motor
AssigneeDana Motion Systems Italia S.R.L.
InventorsFederica Franzoni, Fabio Natali, Alessandro Sassi
Life of this patent
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Abstract
Methods and systems for a bent axis motor are described. In one example, a bent axis motor includes a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a first plurality of grooves spaced about openings of the valve plate on a first side of the valve plate facing the cylinder block, the valve plate further comprising a second plurality of grooves arranged on a second side of the valve plate facing away from the cylinder block.
Claims19
A bent axis piston motor, comprising:
- a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a first plurality of grooves spaced about openings of the valve plate on a first side of the valve plate facing the cylinder block, the valve plate further comprising a second plurality of grooves arranged on a second side of the valve plate facing away from the cylinder block and biased toward one end of the valve plate;
- and
- a port cover comprising a plurality of ports for flowing fluids to the valve plate.
A system, comprising:
- a variable fluid displacement bent axis piston motor comprising a cylinder block and a plurality of pistons, the motor further comprising a valve plate comprising a central opening between a first pair of openings and a second pair of openings on a first side of the valve plate facing the plurality of pistons, a first groove is arranged between the first pair of openings and an outer rim of the valve plate, a second groove is arranged between the first pair of openings and the central opening, a third groove is arranged between the central opening and the second pair of openings, and a fourth groove is arranged between the second pair of openings and the outer rim of the valve plate, the valve plate further comprises a second side facing away from the plurality of pistons, the second side comprising a first cutout arranged between a first slot and the outer rim and a second cutout arranged between a second slot and the outer rim.
A valve plate for a bent axis motor, the valve plate comprising:
- a plurality of openings on a first side of the valve plate facing pistons of the motor, the plurality of openings comprising a central opening, a first opening, and a second opening,
- a plurality of grooves on the first side of the valve plate arranged between an outer rim of the valve plate, the central opening, the first opening, and the second opening, the plurality of grooves comprising a semi-circular cross-sectional shape;
- and
- a plurality of cutouts on a second side of the valve plate opposite the first side, the plurality of cutouts comprising a first cutout adjacent to the first opening and a second cutout adjacent to the second opening.
Dependencies are inferred from the claim text.