Piston for hydrostatic axial and radial piston machines and method for the manufacture thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Mar 18, 1992
filing date -
Mar 18, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of manufacturing a piston for hydrostatic axial and radial piston machines by non-machining forming, by filling a material that is in a substantially unresistant, formable state into a mold defining a piston outer contour which is closed on all sides, in which at least one supporting core is arranged spaced from the inner contour of the mold to remain in the completed piston to define a core region in the interior of the piston that is closed on all sides, then solidifying the material forming a piston with high strength characteristics and low weight, and removing the completed piston with the enclosed supporting core. The invention also comprises a piston for a hydrostatic axial or radial piston machine, made integrally of high-strength material in a non-machining forming process, such as by casting, sintering or the like, having in its interior at least one core region surrounded by the high-strength material and containing a supporting core that is provided to take up forces acting on the piston when in operation and which, during formation of the piston defines the core region, which supporting core is lighter than the high-strength material it replaces in the core region.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully