Lubricant circulation pump for motor vehicle, uses vibration and rocking forces generated during vehicle driving to generate piston motion for lubricant circulation

摘要

The pump comprises a housing (2) with an inlet (14) and exit (16) in opposite ends, designed to be fixed to a part (56) that is moved up and down during operation. The pump chamber contains a tubular piston (18) that can move backwards and forwards. During driving, the vibrations and rocking that the pump is subjected to are converted into pump motion used to circulate lubricant to e.g. an oil filter.