Hydraulic motor control
US4478041A · kind A · utility
33Cited by
8References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1981 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Aug 20, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/6846
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control for a variable displacement motor and operable in either direction of rotation of the motor (10) and which acts on a servo cylinder (55) to set the position of a wash plate (50). The control includes a signal-setting valve (65) operable in response to the rate of fluid flow through the motor by sensing a pressure drop in a closed circuit line to the motor to set a variable control signal and the variable control signal is applied to the displacement-setting mechanism (56,55) for the motor to have a decrease in motor displacement related to an increase in the rate of fluid flow through the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.