Tandem hydraulic motor
US5207060A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03C1/0639
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable displacement hydraulic motor has a motor housing with a fluid inlet and a fluid outlet. A pair of hydraulic displacement units are mounted in the housing in a parallel arrangement and are operatively associated with a common output shaft. The common output shaft is supported for rotation within the housing and has a pair of spaced ends extending outside the housing, one of the ends driving a first axle shaft and the other end driving a second axle shaft. Each motor unit has a rotatable cylinder block with reciprocable pistons communicating with the fluid inlet and the fluid outlet and an angularly positionable swashplate for varying the stroke of the pistons. A minimum-maximum servo regulates the position of each swashplate independently to provide a wide range of output of the hydraulic motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.