JOHN ORVILLE BARNES
Pilots at Mt Ln Platta Dr, San Diego, CA
License number
California A0092822
Issued Date
May 2015
Expiration Date
May 2016
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
4904 Mount La Platta Dr, San Diego, CA 92117
Professional information
Mechanic At Propulsion Controls Enineering
Position:
mechanic at propulsion controls enineering
Location:
Greater San Diego Area
Industry:
Shipbuilding
Work:
propulsion controls enineering
-
mechanic
John Barnes
Specialties:
Buyer's Agent, Listing Agent
Work:
16923 New Rochelle Way #76, San Diego 92127
Determining The Level Of Particulate Contamination In A Fluid Power System
US Patent:
6474144, Nov 5, 2002
Filed:
Mar 18, 2000
Appl. No.:
09/531077
Inventors:
John Barnes - San Diego CA 92118
Philip Raymond John Lloyd - San Diego CA 92118
Philip Raymond John Lloyd - San Diego CA 92118
International Classification:
G01N 1506
US Classification:
73 6171, 73 6173, 422 73, 422 681
Abstract:
A device for determining the level of particulate contamination in a fluid power or lubrication system. Between the inlet and the outlet of the device, working fluid passes through a narrow orifice ( ) defined between a cylindrical spool ( ) and surrounding sleeve ( ). As the orifice becomes obstructed by particulate contamination, fluid flow through the device reduces. The contamination level is assessed by measuring the characteristic reduction in fluid flow rate over a period of time. Following the measurement cycle, fluid flow through the device is reversed causing the spool to move relatively within the sleeve to an area of increased bore ( ) whereby the enlarged gap allows the release of all trapped contaminants. Following this flushing cycle, the fluid is reverted to the original flow direction, the spool returns to the position within the spool that defines the narrow orifice and another measurement cycle begins.