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US 2020/0063722 A1Published application
Hydraulic device
AssigneeInnas B.V.
InventorPeter Augustinus Johannes Achten
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AssigneeInnas B.V.
InventorPeter Augustinus Johannes Achten
Estimating the term…
A hydraulic device (1) comprises a housing (27), a shaft (2) which is mounted in the housing (27) and rotatable about a first axis of rotation (4), wherein the shaft (2) has a flange (8) extending perpendicularly to the first axis (4), a plurality of pistons (9) which are fixed to the flange (8) at equiangular distance about the first axis of rotation (4), and a plurality of cylindrical sleeves (10) cooperating with the pistons (9) to form respective compression chambers (11) of variable volume. The sleeves (10) are rotatable about a second axis of rotation which intersects the first axis of rotation (4) by an acute angle such that upon rotating the shaft (2) the volumes of the compression chambers (11) change. Each piston (9) has a piston head (14) including a ball-shaped circumferential outer side. Each of the pistons (9) has a modular structure comprising a piston head member (14) which forms the piston head, a piston pin (20) which is fixed to the flange (8) and to which the piston head member (14) is mounted, and a spacer (26) which is located at the outer side of the piston pin (20) and sandwiched between the piston head member (14) and the flange (8).
A hydraulic device comprising a housing, a shaft which is mounted in the housing and rotatable about a first axis of rotation, wherein the shaft has a flange extending perpendicularly to the first axis of rotation, a plurality of pistons which are fixed to the flange at equiangular distance about the first axis of rotation, a plurality of cylindrical sleeves cooperating with the pistons to form respective compression chambers of variable volume, wherein the sleeves are rotatable about a second axis of rotation which intersects the first axis of rotation by an acute angle such that upon rotating the shaft the volumes of the compression chambers change, each piston has a piston head including a ball-shaped circumferential outer side, characterized in that each of the pistons has a modular structure comprising a piston head member which forms said piston head, a piston pin which is fixed to the flange and to which the piston head member is mounted, and a spacer which is located at the outer side of the piston pin and sandwiched between the piston head member and the flange.
Dependencies are inferred from the claim text.