Aircraft shock absorber
US5158267A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1991 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Jun 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/01
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber of the invention comprises a strut, a inner cylinder fixed to the strut and extending inside the strut, and a sliding cylinder mounted to slide inside the strut and associated with the inner cylinder to communicate with the inside thereof via throttling orifices and short-circuit orifices, a pump and control arrangement being provided to pump hydraulic liquid from the sliding cylinder into the inner cylinder so as to produce a retraction of the sliding cylinder into the strut when both the throttling and short-circuit orifices are closed. The throttle orifices produce a communication between the sliding cylinder and the inner cylinder which produces a normal damping operation of the strut while the short-circuit orifices provide a rapid release of the sliding cylinder from a retracted position and a control member selectively closes one or both of the orifices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.