Piston for axial piston machines
US5076148A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49252
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston for axial piston machines in the form of a hollow body with an axial cavity therein into which an insert is inserted and is secured axially by means of a collar in the wall of the hollow body surrounding the insert overlapping its outer end face is designed so that while ensuring simple and economical manufacture, stable support of the filler piece and a stability of the shaft of the piston is obtained. This is achieved by providing the collar by pressing the wall of the hollow body, which is longer than its final length, into a plurality of oppositely disposed recesses or into an annular recess in the insert and by cutting the piston formed in this way to length in the general region of the recesses or the annular recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.