Arrangement for controlling a hydraulic motor
US4531449A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/75
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An arrangement for controlling a hydraulic motor having supply and discharge sides, has a throttling directional valve having supply and discharge sides and a port, a speed lowering brake valve controlling the discharge side of the hydraulic motor and having a control piston with a control side and a port connected with said port of said directional valve, a control valve arrangement between the control side of the control piston and the supply side of the hydraulic motor and having end sides with end side ports, the control valve having a control slider which selectively connects the control side of the control piston with the supply side of the hydraulic motor and disconnects the control side of the control piston from the latter, is constantly connected at the end side ports with the discharge side of the hydraulic motor prior or after the directional valve and connects the discharge side of the hydraulic motor after the directional valve with the control side of the control piston or disconnect the discharge side of the hydraulic motor from the latter, the control valve also having a control spring acting upon the control slider in a direction corresponding to a direction in wh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.