Apparatus and method for cooling and lubrication

摘要

A method, device, and nozzle for dispensing cooled lubricant is provided. Lubricant is supplied to the nozzle through an inner lubricant tube. Cooled compressed gas is also supplied to the nozzle through a conduit which surrounds the inner lubricant tube. Cooled compressed gas from the conduit is introduced into a nozzle gas bore in the nozzle and lubricant is introduced into a nozzle lubricant bore in the nozzle. The cooled compressed gas and the lubricant are mixed at a junction between these bores, such that the lubricant is siphoned into the junction by the cooled compressed gas. The mixture of cooled compressed gas and lubricant are then dispensed from an aperture in the nozzle, preferably as a fine atomized mist of cooled lubricant.

主权项

1. A device for dispensing cooled lubricant comprising:
a nozzle for dispensing a mixture of cooled compressed gas and lubricant; an inner lubricant tube in fluid communication with a source of lubricant, wherein the inner lubricant tube transports lubricant to the nozzle via a siphon action; a conduit surrounding the inner lubricant tube and in fluid communication with a source of cooled compressed gas, wherein the conduit transports cooled compressed gas to the nozzle;  wherein the nozzle includes: a nozzle gas bore for receiving cooled compressed gas from the conduit, a nozzle lubricant bore for receiving lubricant from the inner lubricant tube, a junction at which the nozzle lubricant bore joins the nozzle gas bore to produce the mixture of cooled compressed gas and lubricant, and an aperture through which the mixture of cooled compressed gas and lubricant is dispensed; wherein the nozzle gas bore and the nozzle lubricant bore are substantially parallel, the center of the nozzle gas bore and the center of the nozzle lubricant bore are offset from one another, and the junction is formed by a partial overlap between the nozzle lubricant bore and the nozzle gas bore; and wherein, in use, the cooled lubricant is siphoned into the junction by the cooled compressed gas.