The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2024
Filed:
Sep. 10, 2021
Hamfop Technologies Llc, Sacramento, CA (US);
Mudasir Ahmad, San Jose, CA (US);
Hamfop Technologies LLC, Sacramento, CA (US);
Abstract
A heat-activated multiphase fluid-operated pump. A hot chamber receptive of externally applied heat converts a working fluid into vapor. A pressure-control valve allows vaporized working fluid to escape the hot chamber only when a target pressure is exceeded. A liquid-piston chamber receives the vaporized working fluid, which expands adiabatically to displace pumped liquid within the liquid-piston chamber in a pump stage, expelling it through an exit port having a unidirectional check valve. A condenser receives the displaced liquid and allowing it in a suction stage to return to the liquid-piston chamber through another unidirectional check valve. An injector valve coupled between the liquid-piston chamber and the hot chamber facilitates jets of condensed working fluid to replenish the hot chamber in successive brief spurts responsive to periodic pressure pulses in the liquid-piston chamber that temporarily exceed the pressure in the hot chamber.