Radial-plunger pump assembly - has cylindrical inner housing accommodating valve ring with sealing rings on either side

摘要

The radial-plunger pump has an eccentric on a shaft working in a central hole in an annular housing, and actuating plungers working on radial bores, there being outlet holes from the latter leading to the outside of the housing, which is enclosed by a strip-type valve ring. An outer housing encloses the first one, forming an annular passage round the latter at the valve ring. Where its OD is greatest, the first housing is a cylindrical body (1) containing the outlets (13), the valve ring (14) lying against it. The annular passage (15) between it and the outer housing (6) is sealed in the axial direction by peripheral rings (19,22) on either side of the valve ring.