Patent ID: 8322270
Filing Date: 2012-12-04
Classification: F04B

Abstract:
1. A reciprocating piston machine comprising: a housing having an opening, a recess in the opening having an annular contact surface between a small diameter part of an interior of the housing and a larger diameter part of the interior of the housing, and an inside, the smaller diameter part and the larger diameter part being formed from a single piece of the housing; an axial shaft bearing; a radial shaft bearing; a rotationally drivable shaft, the drivable shaft being supported by the radial shaft bearing and the axial shaft bearing; a shaft sealing device; and a bearing sleeve accommodating the radial shaft bearing and the shaft sealing device, the bearing sleeve being configured within the opening in the housing such that a first axial portion extends into the inside of the housing and a second axial portion extends outside of the housing, the shaft sealing device contacting an inner surface of the second axial portion, the bearing sleeve including a first collar having a first collar surface between a first collar smaller diameter surface and a first collar larger diameter surface, the first collar surface resting within the housing in an axial direction on the annular contact surface in the recess so that axial forces acting on the bearing sleeve outwardly from the inside are absorbed by the housing by action of positive engagement between the first collar surface of the bearing sleeve and the annular surface of the recess of the housing; wherein a portion of the first collar smaller diameter surface is angled away from the smaller diameter part of the housing.