US 2019/0170294 A1 · LUBRICATION AND SCAVENGE SYSTEM

Abstract

A lubrication system comprises a lubricant feed tank, a lubricant feed pump, one or more lubricant nozzles, a scavenge pump drive motor, and one or more scavenge pumps. The lubricant feed pump takes suction from the lubricant feed tank and pumps a lubricant feed as lubricant jets exiting the one or more lubricant nozzles. The lubricant feed pump has a rotating feed pump shaft coupled to a power source. The scavenge pump drive motor drives a rotating scavenge pump shaft that is coupled to the one or more scavenge pumps. The scavenge pumps return lubricant to the lubricant feed tank. The feed pump shaft and scavenge pump shaft rotate independently of each other.

Claims20

Dependent claims

A lubrication system comprising:

a lubricant supply tank;
a lubricant feed pump having a rotating feed pump shaft, said lubricant feed pump drawing a suction from said lubricant supply tank and discharging a lubricant feed;
one or more lubricant jets receiving the lubricant feed and directing the lubricant to one or more components;
a scavenge pump drive motor driving a rotating scavenge pump shaft;
one or more scavenge pumps being driven by the scavenge pump shaft,
wherein the scavenge pump shaft rotates independently of the feed pump shaft.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/830,657Filed 4 Dec 2017

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

F16N 13/22
Lubricating-pumps: with distributing equipment
F01D 15/12
Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby: combinations with mechanical gearing
F01D 25/20
Lubricating arrangements: using lubrication pumps
F16N 7/40
With a separate pump; Central lubrication systems: in a closed circulation system

Lubrication and scavenge system

Life of this patent

Lubrication and scavenge system

Life of this patent

Abstract

Claims20