DWIGHT WILLIAM COOMBE
Pilots at Hl Rd, Sundown, NY
License number
New York A2878168
Issued Date
Oct 2016
Expiration Date
Oct 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
550 S Hill Rd, Sundown, NY 12740
Professional information
Fully Variable Output Hydraulic Gear Pump Having An Axially Translatable Gear
US Patent:
5184947, Feb 9, 1993
Filed:
May 21, 1991
Appl. No.:
7/703364
Inventors:
Dwight Coombe - Grahamsville NY
International Classification:
F04C 218, F04C 1100, F04C 1504
US Classification:
418 20
Abstract:
A fully variable output hydraulic pump includes a main casing having a fluid pumping chamber extending therethrough, fluid input ports and fluid output ports. The fluid pumping chamber is shaped to receive a pair of cylindrically shaped gears inserted axially therethrough. A first rotatable gear and second rotatable gear are insertable through the pumping chamber. The first and second gears are rotatably supported by respective means which are axially translatable relative to each other. A means for sealing the area between the gears and the main casing effectively creates a sealed fluid pumping chamber. By translating one of said means for rotatably supporting the gears, the effective fluid pumping volume within the fluid pumping chamber may be altered to provide a fully variable output hydraulic pump.