Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent
1995-11-21
1997-07-01
Gluck, Richard E.
Pumps
Three or more cylinders arranged in parallel, radial, or...
Radial cylinders
F04B 2704
Patent
active
056429886
ABSTRACT:
A radial piston pump (1), preferably for pressure medium supply of an anti-lock system of vehicle brakes, with a rotating pump shaft (3), an end section of which has a pivot (5) extending eccentrically to a longitudinal center axis of the pump shaft (3), there being arranged on the pivot (5) a rolling bearing on whose outer ring (9) are supported by their plane end faces (13) pump plungers (12) in star arrangement in a pump housing (2) and extending radially to the pump shaft (3), characterized in that the rolling bearing is designed as a needle bearing (6) with the needle elements rolling directly against the shaft pivot (5), the outer ring (9) being produced as a deep-drawn sheet metal ring with chiplessly formed edges (10,11) on both sides, in which needle-shaped rolling elements (7) are guided via a cage (8) and in which the outer ring (9) is made with a core hardness of at least 300 HV1.
REFERENCES:
patent: 3777622 (1973-12-01), Hause et al.
patent: 4968220 (1990-11-01), Filippi et al.
patent: 4975025 (1990-12-01), Yamamura et al.
patent: 4977606 (1990-12-01), Budecker
patent: 4983100 (1991-01-01), Budeck et al.
patent: 5230275 (1993-07-01), Hodge et al.
Stewart, Pumps, pp. 193, 199-200, Theodore Audel & Co., Indianapolis IN, 1978.
Gluck Richard E.
INA Walzlager Schaeffler KG
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