Actuator with pneumatic energy accumulator more especially for cock valves
US4608913A · kind A · utility
3Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87515
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides an actuator comprising a hydraulic cylinder whose rod is connected to the shaft driving the controlled device by means of a transmission. The end of the rod of the cylinder penetrates into an accumulation chamber connected to the intake circuit of said cylinder through a distribution circuit comprising at least one non return calibrated valve and a balancing distributor with push rod and spring return which allows the drive fluid of the cylinder to be admitted into said accumulation chamber when the rod of said cylinder is at the end of travel under the effect of the drive fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.