Piston unit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9334956
APP PUB NO 20130228071A1
SERIAL NO

13811518

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Importance

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Abstract

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A piston unit for a radial piston machine includes a piston and a roller or a roller element. The roller or roller element has a circular cylindrical jacket apart from a chamfer. A hydrostatic pressure- or force-relief element is provided in a contact area between the piston and the roller. The hydrostatic pressure- or force-relief element forms a pressure field in the contact area. The roller or roller element also has one or two end-face holes. Due to the hole(s), the roller is slightly weakened at the associated end section such that Hertzian stress is reduced at the same associated end section.

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 70442 STUTTGART

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Breuer, David Tuebingen, DE 14 7
Kermode, Geoffrey Kirkcaldy, GB 3 4
Nagel, Philip Augsburg, DE 2 4
Tibari, Khaled Edinburgh, GB 3 9

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