Method for reducing the apparent manoeuvring time for landing gear of an aircraft
US-9517837-B2 · Dec 13, 2016 · US
Locking device of an aircraft landing gear
US2016340031A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016340031-A1 |
| Application number | US-201615158948-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 19, 2016 |
| Priority date | May 19, 2015 |
| Publication date | Nov 24, 2016 |
| Grant date | — |
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Abstract
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A locking device of an aircraft landing gear for locking the landing gear in a retracted and an extended position. A locking cylinder is arranged on a landing gear leg and a locking bolt is movably arranged in the locking cylinder. In the retracted position and in the extended position of the landing gear the locking bolt serves to fix the landing gear leg.
First claim
Opening claim text (preview).
1 . A locking device of an aircraft landing gear for locking the landing gear in a retracted and an extended position, the locking device comprising: a locking cylinder which is arranged on a landing gear leg and a locking bolt which is movably arranged in the locking cylinder, wherein in the retracted position and in the extended position of the landing gear the locking bolt serves to fix the landing gear leg. 2 . The device according to claim 1 , wherein the locking bolt for example is movably arranged in the locking cylinder transversely to the longitudinal direction of the landing gear leg. 3 . The device according to claim 1 , wherein the locking bolt in a condition extended out of the locking cylinder is designed to fix the landing gear leg. 4 . The device according to claim 1 , furthermore comprising a connecting point for interacting with the locking piston extended out of the locking cylinder, in order fix the landing gear leg in a retracted or an extended condition. 5 . The device according to claim 4 , wherein the connecting point is a sleeve for accommodating the locking piston extended out of the locking cylinder. 6 . The device according to claim 1 , wherein the locking bolt is pretensioned by a spring. 7 . The device according to claim 6 , comprising at least two springs independent of each other, in order to pretension the locking bolt. 8 . The device according to claim 6 , wherein the spring pretensioning force of the locking piston urges the same into a direction out of the locking cylinder. 9 . The device according to claim 1 , furthermore comprising an electric or hydraulic motor for moving the locking piston in the locking cylinder. 10 . The device according to claim 1 , furthermore comprising a switch for monitoring a position of movement of the locking piston out of the locking cylinder. 11 . The device according to claim 10 , comprising at least two switches independent of each other for monitoring a retracted and an extended condition of the locking piston out of the locking cylinder. 12 . The device according to claim 11 , comprising at least two independent switches for monitoring a retracted condition of the locking piston and at least two independent switches for monitoring an extended condition of the locking piston. 13 . The device according to claim 9 , furthermore comprising a temperature sensor which is integrated into windings of the electric motor, in order to measure a motor temperature. 14 . A nose or tailwheel landing gear, which comprises a locking device according to claim 1 . 15 . An aircraft with a locking device for the landing gear according to any of the claim 1 .
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- What does patent US2016340031A1 cover?
- A locking device of an aircraft landing gear for locking the landing gear in a retracted and an extended position. A locking cylinder is arranged on a landing gear leg and a locking bolt is movably arranged in the locking cylinder. In the retracted position and in the extended position of the landing gear the locking bolt serves to fix the landing gear leg.
- Who is the assignee on this patent?
- Liebherr Aerospace Lindenberg GmbH
- What technology area does this patent fall under?
- Primary CPC classification B64C25/26. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Nov 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).