Title:
SHOCK STRUT WITH PRESSURE RELIEF
Document Type and Number:
WIPO Patent Application WO/2010/011635
Kind Code:
A3
Abstract:
A shock strut (11) includes a relief device (70) that reduces the internal pressure within a sealed chamber (42) of the shock strut when a load condition that exceeds a maximum operating load condition is encountered. The reduced pressure permits a telescopically moving piston (30) of the shock strut (11) to be received into a corresponding cylinder (32) to an amount that increases the structural capability of the shock strut (11), especially with respect to applied side loads that generate bending and shearing stresses in the shock strut (11). In one embodiment, the reduced pressure permits the piston to "bottom out" relative to the cylinder (32), which is a condition not otherwise achievable without the relief device. This additional stroke achievable by the piston (30) reduces or eliminates the need to reinforce and thus add weight to the shock strut because of higher load condition design requirements.
Inventors:
LAVIGNE PAUL (CA)
VANDERPOL PAUL (CA)
VANDERPOL PAUL (CA)
Application Number:
PCT/US2009/051227
Publication Date:
April 08, 2010
Filing Date:
July 21, 2009
Export Citation:
Assignee:
GOODRICH CORP (US)
LAVIGNE PAUL (CA)
VANDERPOL PAUL (CA)
LAVIGNE PAUL (CA)
VANDERPOL PAUL (CA)
International Classes:
B64C25/60
Foreign References:
| US2593372A | 1952-04-15 | |||
| US5094407A | 1992-03-10 | |||
| US20050211831A1 | 2005-09-29 | |||
| GB2057629A | 1981-04-01 | |||
| US4702438A | 1987-10-27 |
Attorney, Agent or Firm:
VERSHAVE, Richard, C. et al. (701 Fifth Avenue Suite 480, Seattle WA, US)
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