Importance

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Abstract

In a vane cell pump for pumping a pressure fluid from a container to a consumer, all the essential components and functional characteristics are accommodated in a bearing housing (10). The components include a suction connection (13) for connecting to the container, a pressure connection (14) for connecting to the consumer, a flow regulating valve (15) for regulating the pressure fluid pumped to the pressure connection (15), a pressure limiting valve (16) and suction and pressure conduits, which connect the work chambers to the suction connection (13), flow regulating valve (15), and pressure limiting valve (16). Also located in the bearing housing (10) is the sole radial bearing point of a drive shaft (12), by which a rotor (5) is supported in a cam ring (4). Between the cam ring (4), the rotor (5) and vanes (6) are inserted into it, so that work chambers are formed, which are defined in the axial direction by two control plates (7, 8). Opposite its adjacent control plate (7), the bearing housing (10) has a flat face (17), which is adjoined by a flat face (18) of a housing cap (11). The housing cap (11) is secured and centered relative to the bearing housing (10) solely by screws (21). Since neither the control plate (8) nor the drive shaft (12) is centered or supported in the housing cap (11), the simple centering of the housing cap (11) by the screws (12) suffices.

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First Claim