Hydrostatic assembly
US9945462B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 4, 2014 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2047/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrostatic assembly employing a 1st hydraulic piston drive unit is described in which the output is increased without using additional servo assemblies by incorporating a 2nd hydraulic piston drive unit, coupling the drive shafts of both drive units together, and employing a common means to simultaneously adjust displacement of both the 1st and 2nd hydraulic piston drive units. In such embodiments, coupling the drive shafts together such that the 1st hydraulic piston drive unit is rotationally offset with respect to the 2nd hydraulic piston drive allows for a reduction in the amplitude of pressure pulsations associated with the hydrostatic assembly output, thereby smoothing out operation and improving durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.