Apparatus for blocking and for adjusting a pressure
US10145086B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/85
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus (10) blocks and adjusts a pressure for a hydraulically controllable actuator (12), particularly a lifting unit (16) of a machine (18). The apparatus (10) allows a working chamber (20, 22) to be selectively connected to a pressure supply unit (94) having a storage device (34) or to a discharge end (66), in particular a reservoir end, by a valve unit (38). In a controlling position of the valve unit (38), when the storage pressure in the storage device (34) is greater than the working pressure in the working chamber (20) of the actuator (12), the storage pressure is relieved in the direction of the discharge end (66) until the working pressure has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.