Patent ID: 6199663
Filing Date: 2001-03-13
Classification: F16N,Y10T

Abstract:
A lubrication system comprising:a fluid reservoir;a housing having an interior with an inlet and an outlet fluidly coupled to the reservoir;a fluid pump configured to pump fluid from the reservoir to the interior of the housing through the inlet; anda fluid conduit connected between the fluid pump and the inlet, wherein the conduit includes:an inflow portion proximate the pump and having a first cross sectional area;an outflow portion proximate the inlet having a second cross sectional area; anda throat between the inflow portion and the outflow portion, the throat having an exit proximate the outflow portion and a third cross sectional area less than the first and second cross sectional areas;at least one aspiration passage extending from a source of air to a location proximate the exit of the throat, whereby fluid pumped through the fluid conduit by the fluid pump draws air through the at least one aspiration passage into the outflow portion to aerate the fluid and whereby the aerated fluid pressurizes the interior of the housing to expel fluid through the outlet and back to the fluid reservoir.