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US 12,516,662 B2Granted
Actuation system for a 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 variable balancing piston motor are described. In one example, a hydraulic displacement motor includes a valve plate coupled to at least one piston of a cylinder block, the valve plate comprising a plurality of grooves fluidly coupled to a passage comprising a valve.
Claims12
A hydraulic displacement motor, comprising:
- a valve plate coupled to at least one piston of a cylinder block and comprising a central opening through which a pin oscillates, the valve plate comprising a plurality of grooves fluidly coupled to a passage comprising a valve, wherein the passage is configured to flow fluid to a first pair of the plurality of grooves between the central opening, a first opening, and a second opening and to a second pair of the plurality of grooves arranged between the first opening and second opening and an outer rim of the valve plate, wherein the valve is external to the hydraulic displacement motor.
A fluid displacement motor, comprising:
- a cylinder block in which a plurality of pistons and a pin oscillate;
- a valve plate comprising a central opening through which the pin oscillates and between a first opening and a second opening, the valve plate further comprising a plurality of grooves, a first groove arranged between the central opening and the first opening, a second groove arranged between the first opening and an outer rim of the valve plate, a third groove arranged between the central opening and the second opening, and a fourth groove arranged between the second opening and the outer rim;
- and
- a valve arranged in a connecting passage coupled to an inlet port of the fluid displacement motor, the valve configured to control fluid flow to the plurality of grooves, wherein an inlet passage extends from the inlet port and divides to flow fluid to each of the plurality of grooves.
1 more element
Dependencies are inferred from the claim text.