Hydrostatic cylinder block and method of making the same
US6802244B1 · kind B1 · utility
5Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | May 28, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49236
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of making a cylinder block for a rotatable hydrostatic power member by separating the cylinder block into its four geometries and joining them together. The geometries include a base plate having a center opening and a arcuate kidney-shaped openings uniformly spaced radially around the center opening. The second geometrical item is a grooved drive shaft that fits into the center opening of the base plate. The third member is a group of tubular bore elements that fit in the base plate and mate with the drive shaft. The final member is a torque ring that matingly fits over the tubular piston bore elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.