Hydraulic linear drive, particularly a hydraulic transmission actuator
US7516691B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2005 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic linear drive, particularly a hydraulic transmission actuator, having a piston/cylinder unit, in which an actuating piston longitudinally displaceably arranged in the cylinder housing divided into at least two pressure chambers which can be acted upon by hydraulic oil by way of control conduits. A piston rod is connected with the actuating piston, and a sealing element is arranged on the actuating piston to seal off the two pressure chambers from one another. The actuating piston has a two-piece construction and consists of a first and a second piston part between whose facing faces, a sealing element is arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.