Patent ID: 11885322
Assignee: ECONOMAD SOLUTIONS LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 6:
7. A method of pumping a second liquid comprising:
providing a sealed closed circuit for a first liquid, the sealed closed circuit comprising the following elements arranged in the following order: i) a vaporization portion, ii) a first reservoir, and iii) a second reservoir, the first reservoir being arranged below the vaporization portion and below the second reservoir, the second reservoir having an expandable volume, the volume of the second reservoir having a fixed relationship with the volume of a pumping vessel for pumping the second liquid, the second reservoir being connected to the vaporisation portion by a non-return valve such that the first liquid can flow from the second reservoir to the vaporisation portion but can only flow from the vaporisation portion to the second reservoir via the first reservoir;
adjusting the fixed relationship between the volume of the pumping vessel and the volume of the second reservoir to pre-set a position of a head of the second liquid in a discharge system coupled to the pumping vessel;
vaporizing first liquid within the vaporization portion, said vaporizing being caused by heat received from an external source at the vaporization portion, said vaporizing increasing an amount of gas in the closed circuit thereby causing the pas to press on the first liquid in the first reservoir and urge it, against gravity, into the second reservoir and into contact with a displaceable interface upon which it exerts pressure;
converting the pressure exerted on the displaceable interface into a pumping force; and
transferring the pumping force to a pumping vessel for pumping a second liquid.