US 5,960,697 A · Axial piston machine

Abstract

An axial piston machine comprises first and second members arranged so that one of the first and second members is swingable relative to the other to provide relative swinging motion, a plurality of pistons inserted in a plurality of cylinders formed in the second member, respectively, the pistons being mechanically engaged with the first member so that the relative swinging motion reciprocates the plurality of pistons in the cylinders, and a swinging mechanism for swinging the above-mentioned one of the first and second members relative to the other, and the axial piston machine is characterized in that the first and second members have spherical portions providing a coupling portion binding one of the first and second members to a spherical point of the other to be universally rotatable about the point, and the above-mentioned swinging mechanism comprises a relative revolving mechanism for revolving at least one of the first and second members relative to the other to provide a relative swinging motion between the first member and the second member, thereby to reciprocate the pistons.

Claims16

Dependent claims

An axial piston machine comprising first and second members arranged so that said first and second members are relatively swingable to provide relative swinging motion, said second member having a cylinder-forming portion, a plurality of pistons inserted in a plurality of respective cylinders formed in said second member, said pistons being engaged with said first member so that the relative swinging motion reciprocates said plurality of pistons in said cylinders, and a swinging mechanism for swinging said first and second members relative to the other, wherein said first and second members have a coupling portion binding one of said first and second members to a point of the other to be universally rotatable about said point, said swinging mechanism comprises a relative revolving mechanism for revolving at least one of said first and second members to provide the relative swinging motion between said first and second members, thereby to reciprocate said pistons, and a position at which said at least one of said first and second members is rotatably drivable is spaced from the point outside of said coupling portion.

An axial piston machine comprising:

first and second rotating members being rotatable about inclined axes, said second rotating member having a plurality of spaced cylinders formed therein parallel to and separated from the axis thereof;
a plurality of pistons inserted in said cylinders, respectively, and mechanically linked to said first rotating member;
a mechanism for relatively swinging said first and second rotating members so as to reciprocate said plurality of pistons in said cylinders;
and
wherein said first and second rotating members each have a spherical portion to provide a spherical abutment along which said first and second rotating members are relatively slidable, each spherical portion having a spherical center on a cross point of the axes of said first and second rotating members, said second rotating member supporting said first rotating member in a direction of the axis of said second member, and said mechanism for generating a relative swinging motion comprises a rotation input shaft for rotating said first and second rotating members about the axes thereof, and a fixed member for rotatably supporting said first rotating member so as to keep an inclination angle constant while allowing said first rotating member to rotate, whereby said first rotating member slides on said second rotating member along said spherical abutment and swings relatively to said second rotating member.

2 more elements

Dependencies are inferred from the claim text.

Axial piston machine

Life of this patent

Axial piston machine

Life of this patent

Abstract

Claims16