US 2014/0216244 A1Published application

Cylinder Assembly

AssigneeArtemis Intelligent Power Limited

InventorsGordon Voller, Uwe Stein, Jack Lavender, Alex Rampen

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Abstract

A rocking cylinder assembly comprising a cylinder, rotatable about a rocking axis between first and second end positions, having a cylinder bore terminating at a cylinder bearing surface and a cylinder aperture, and a bearing component having a component bore terminating at a component bearing surface and a component aperture. The ratio of the area of the second one of the apertures to the square of the maximum extent of the second one of the apertures in a direction perpendicular to the rocking axis and perpendicular to a second axis for fluid flow is greater than the ratio of the area of the first one of the apertures to the square of the maximum extent of the first one of the apertures in a direction perpendicular to the rocking axis and perpendicular to a first axis for fluid flow.

Claims15

Dependent claims

A rocking cylinder assembly (1) comprising:

a cylinder (2) having a cylinder bore (12) terminating at a cylinder bearing surface (4) and a cylinder aperture (16) defined by a line of intersection between the cylinder bore (12) and the cylinder bearing surface (4), the cylinder (2) being rotatable about a rocking axis between first and second end positions;
and a bearing component (8, 50) having a component bore (20, 52) terminating at a component bearing surface (6, 56) and a component aperture (22, 58) defined by a line of intersection between the component bore (20, 52) and the component bearing surface (6, 56), the cylinder bearing surface (4) bearing against the component bearing surface (6, 56) and the cylinder and component apertures (16, 22, 58) being in fluid communication as the cylinder (2) rotates between the first and second end positions, a first one of the cylinder and component apertures (16, 22, 58) having a greater area than the second one of the cylinder and component apertures (16, 22, 58), the first one of the cylinder and component apertures (16, 22, 58) defining a first fluid flow path having a first principal fluid flow axis along which fluid flows through the said first one of the apertures (16, 22, 58) and a second one of the cylinder and component apertures (16, 22, 58) defining a second fluid flow path having a second principal fluid flow axis along which fluid flows through the second one of the apertures (16, 22, 58), characterised in that the ratio of the area of the said second one of the apertures (16, 22, 58) to the square of the maximum extent of the said second one of the apertures (16, 22, 58) in a direction perpendicular to the rocking axis and perpendicular to the second principal fluid flow axis is greater than the ratio of the area of the said first one of the apertures (16, 22, 58) to the square of the maximum extent of the said first one of the apertures (16, 22, 58) in a direction perpendicular to the rocking axis and perpendicular to the first principal fluid flow axis.

A method of operating a rocking cylinder assembly (1) comprising:

a cylinder (2) having a cylinder bore (12) terminating at a cylinder bearing surface (4) and a cylinder aperture (16) defined by a line of intersection between the cylinder bore (12) and the cylinder bearing surface (4), the cylinder (2) being rotatable about a rocking axis between first and second end positions;
a bearing component (8, 50) having a component bore (20, 52) terminating at a component bearing surface (6, 56) and a component aperture (22, 58) defined by a line of intersection between the component bore (20, 52) and the component bearing surface (6, 56), a first one of the cylinder and component apertures (16, 22, 58) having a greater area than the second one of the cylinder and component apertures (16, 22, 58), the first one of the cylinder and component apertures (16, 22, 58) defining a first fluid flow path having a first principal fluid flow axis along which fluid flows through the said first one of the apertures (16, 22, 58) and a second one of the cylinder and component apertures (16, 22, 58) defining a second fluid flow path having a second principal fluid flow axis along which fluid flows through the second one of the apertures (16, 22, 58), the ratio of the area of the said second one of the apertures (16, 22, 58) to the square of the maximum extent of the said second one of the apertures (16, 22, 58) in a direction perpendicular to the rocking axis and perpendicular to the second principal fluid flow axis being greater than the ratio of the area of the said first one of the apertures (16, 22, 58) to the square of the maximum extent of the said first one of the apertures (16, 22, 58) in a direction perpendicular to the rocking axis and perpendicular to the first principal fluid flow axis, the method comprising:
rotating the cylinder (2) between the first and second positions;
bearing the cylinder bearing surface (4) against the component bearing surface (6, 56) as the cylinder (2) rotates between the first and second positions such that the cylinder and bearing component apertures (16, 22, 58) are in fluid communication as the cylinder (2) rotates between the first and second positions;
and flowing fluid between the cylinder and bearing component apertures (16, 22, 58).

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/173,941Filed 6 Feb 2014
Priority: EP 13154494.27 Feb 2013
Published: 7 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16J 10/02
Engine or like cylinders ; Features of hollow, e.g. cylindrical, bodies in general: cylinders designed to receive moving pistons or plungers
F01B 15/04
Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00: with oscillating cylinder
F04B 19/027
Having movable cylinders: cylinders oscillating around an axis perpendicular to their own axis
F16J
Pistons