Lubrication – Lubricators – Force feed
Patent
1996-07-05
1998-03-10
Verdier, Christopher
Lubrication
Lubricators
Force feed
184 59, 1372055, 239317, 239318, 239580, 251208, F16N 734
Patent
active
057250731
ABSTRACT:
An adjustable oil metering valve for a compressed air lubricator includes a lower, fixed member (20) having a central, downwardly extending oil delivery nozzle (30) and a peripherally ramped upper surface (29) in communication with the nozzle (30). Seated on the surface (29), and rotatable relative thereto, is a valve member (21) that includes a lower disc portion (31) having a radial channel (35) formed in its lower surface. The lower surface of the rotatable disc portion (31) and the upper surface (29) of the fixed member (20) thereby define between them a peripheral gap (H) of progressively varying height into which the oil is fed whence it flows to the nozzle (30) via the channel (35). The rate of flow of oil to the nozzle (30) is substantially proportional to the height of the gap (H) at the angular location of the outer end of the channel (35) which may be selectively varied by rotating the valve member (21). A metering valve may largely comprise simple plastics mouldings and, as such, is inexpensive to make and assemble.
REFERENCES:
patent: 2911008 (1959-11-01), Du Bois
patent: 3298393 (1967-01-01), Mosier
patent: 3707204 (1972-12-01), Dussardier
patent: 4721186 (1988-01-01), Fujiwara
IMI Norgren, Inc.
Verdier Christopher
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