Hybrid cooling machine

The hybrid space cooling device combines evaporative and refrigeration technologies to manage heat and humidity, addressing energy inefficiencies and adaptability issues of conventional systems, providing efficient and sustainable cooling for diverse climates.

WO2026154506A1PCT designated stage Publication Date: 2026-07-23GUPTA ARVIND RAJ
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
GUPTA ARVIND RAJ
Filing Date
2026-01-09
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Conventional cooling systems, such as those in US8151578B1 and US11662103B2, face high energy consumption, inefficiency in humid environments, and limited adaptability due to reliance on compressor-based refrigeration, with traditional portable air conditioners struggling with heat rejection and setup complexity.

Method used

A hybrid space cooling device integrating evaporative cooling and refrigeration technologies, featuring a unique mechanism to manage rejected heat from the refrigeration compressor, operates in four modes to optimize thermal comfort and humidity control, and is designed for lower and middle-income households.

Benefits of technology

The hybrid cooling machine achieves efficient temperature and humidity control with reduced energy consumption, operating at 400-550 watts, and is adaptable to various climatic conditions, including power outages, making it a cost-effective and sustainable solution.

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Abstract

The present invention relates to a hybrid space cooling machine which integrates evaporative cooling and refrigeration technologies to provide efficient temperature and humidity control. Designed to operate effectively in diverse climatic conditions, the present invention targets a comfortable indoor environment by maintaining temperatures between 24-26°C and relative humidity at 40-60%. This machine features a unique mechanism for managing rejected heat from the refrigeration compressor via air to water heat transfer, enhancing its energy efficiency compared to conventional cooling systems. The present invention operates in multiple modes: as a removal of heat for hot and humid climates, an evaporative cooler for hot and dry conditions, and a removal of moisture for cold and damp environments. Overall, the present invention offers a cost-effective, energy-efficient solution for maintaining optimal indoor comfort, addressing the increasing demand for sustainable cooling technologies in the face of global climate challenges.
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