Apparatus for the damped positioning of a piston
US6085632A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/755
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for the damped positioning of a piston running in a cylinder at one fixed abutment at least and more particularly for setting in a terminal position. The apparatus includes sensor means connected with an electronic regulating means for detecting the piston position as an actual value signal. A valve means adapted to be regulated by the regulating means serves for regulated braking of the piston prior to reaching the respective desired position by influencing opposing pressure in the cylinder outlet side. For forming the setting quantity for the proportional valve a position regulating means is provided which is modified by a value dependent on the respective speed and/or acceleration of the piston. This apparatus ensures an extremely accurate regulation of position simply by detecting of the position of the piston as an actual value signal. It is more particularly possible to brake the piston in the terminal positions with a damping action that an additional damping system is no longer necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.