Hydrostatic axial piston machine with a control port, a cradle supported swashplate and a swashplate actuating piston
US6663354B2 · kind B2 · utility
21Cited by
17References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Nov 2, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/324
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydrostatic axial piston machine has a cylinder block with bores holding reciprocating pistons, a swashplate supporting the pistons, and control cams to supply the bores with hydraulic fluid. The swashplate is a pivoting cradle mounted on friction bearings in a cradle receptacle. Hydraulic fluid channels empty into the cradle receptacle and are in communication with supply channels in the cradle connected to the control cams. An actuator piston to adjust the cradle is located between two friction bearing segments of the cradle receptacle and has a toothed rack segment engaging a gearing segment on the back side of the cradle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.