Lubricant dispenser

Abstract

A lubricant dispenser having a cartridge, a wall in the cartridge defining therein a lower chamber and an upper chamber, and a piston subdividing the lower chamber into a lower lubricant compartment and an upper gas compartment. The cartridge has an outlet opening into the lower lubricant compartment. A body of fluent lubricant fills the lower lubricant compartment. A housing in the upper chamber holds a gas generator connected through the wall to the gas compartment and electrically energizeable to generate gas and pressurize the gas compartment. A battery is secured to the housing. An electronic controller removably mounted in the upper chamber has electrical contacts connectable to the battery and to the gas generator. It is powerable by the battery for operating the gas generator and thereby pressurizing the gas compartment, moving the piston, and forcing the lubricant out of the outlet.

Description

technical field [0001] The invention relates to a lubricant dispenser comprising a lubricant cartridge, an electronic control unit for controlling electrochemical gas generation and a drive battery for at least powering the electronic control unit, said lubricant cartridge comprising a lubricant Lubricant reservoir for lubricant outlet, piston and gas generator unit for electrochemical gas generation. Background technique [0002] A lubricant dispenser (applicator) of the described character is disclosed in DE 10 2005 035 452 A1. The gas generator unit, the electronic control unit and the battery for power supply are integrated in the lubricant cartridge and installed in a closed housing. The lubricant cartridge is a single-use item and is discarded as a whole, including the electronic assembly, after the lubricant reservoir is emptied. This is unsatisfactory neither for environmental reasons nor for cost reasons. A further disadvantage is that after a prolonged storage o...

AI Technical Summary

Problems solved by technology

This is unsatisfactory either for environmental reasons or for cost reasons

Another disadvantage is that after a long period of storage of the lubricant dispenser the battery is partially discharged before the lubricant dispenser is put into service, since the battery is already supplying the electronic control unit in an inert state

Sometimes it is not guaranteed that the lubricant dispenser will still work as specified over long application times due to partial discharge caused by standing

[0003] Increasingly complex electronic control of lubricant distributors with electrochemical gas drives

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