Lubrication mechanism design for aircraft landing gear bearings

Heirendt, Laurent; Hugh, Hugh H.T.; Wang, Phillip

Reference : Lubrication mechanism design for aircraft landing gear bearings


	Document type :	Patent : Patent
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/10993/38357

Title :	Lubrication mechanism design for aircraft landing gear bearings
Language :	English
Author, co-author :	Heirendt, Laurent [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
	Hugh, Hugh H.T. [University of Toronto - U of T > Institute for Aerospace Science]
	Wang, Phillip [Safran Landing Systems Canada Inc.]
Publication date :	20-Dec-2018
Creation date :	2017-06-14
Publisher :	US Patent Office
Patent/publication number (10-11) :	US2018/0363723A1
Priority number (30) :	15/62,863
Report number :	A
Country :	United States
Depositor :	Safran Landing Systems Canada Inc., Ajax (CA)
International classification (IPC) (51) :	F16C29/02; F16C33/10; F16F7/09; F16F7/112
European classification (ECLA) (52) :	F16C29/025; F16C33/10; F16F7/09; F16F7/112; F16C2326/05; F16C2326/43
International protection: country codes (81) :	US, CA, CN
European protection: country codes (84) :	AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Abstract :	[en] A shock absorber with lubricated bearings for an aircraft landing gear includes a piston that is received in a cylinder, and an upper bearing fixed to the piston that slidably engages an inner surface of the cylinder. A lower bearing extends inwardly from a lower portion of the cylinder and engages an outer surface of the piston. The lower bearing has a center axis and defines an annular bearing surface configured to slidably engage the piston outer surface. The annular bearing surface has a first portion that extends circumferentially more than one hundred eighty degrees about the center axis at a constant radius, defining a circular annular segment. A second portion closes the circular annular segment and defines a shallow channel or pocket in the annular bearing surface. In some embodiments the lower bearing further comprises oppositely disposed frustoconical thrust portions.
Target :	Researchers ; Professionals ; General public
Permalink :	http://hdl.handle.net/10993/38357
Other URL :	https://patents.google.com/patent/US20180363723A1/en

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