Patent ID: 7661937
Filing Date: 2010-02-16
Classification: F04B,Y10T

Abstract:
1. A control plate for an axial piston machine having a generally kidney-shaped low-pressure control opening and at least one generally kidney-shaped high-pressure control opening that is opposed to the low-pressure control opening, by means of which cylinder bores of a cylinder drum rotatably mounted in a housing are alternately connected, on rotation of the cylinder drum, to a high-pressure connection and a low-pressure connection, a through-opening being formed in the control plate, wherein: a radially inner edge of the control plate is designed as a centering surface which centers the control plate on a centering body on the housing; in that the centering surface is composed of a plurality of partial surfaces formed on segments of the inner edge of the control plate which extend radially inwardly into the through-opening and are separated by recesses; and wherein a radial extension of the control plate is formed at an outer edge of the control plate only in the region of the entirety of the at least one high-pressure control opening that is connected to the high-pressure connection, and the radial extension of the control plate is formed over the entire region of the entirety of the at least one high-pressure control opening that is connected to the high-pressure connection.