Laundry Steam Generator for Low-Water Washing and Wrinkle Reduction

The patent utilizes phase transition of water from liquid to steam form. A steam generator converts water into steam, which is then injected into the washing drum. The steam condenses on the laundry surfaces, providing intense heat and moisture for effective washing without requiring large amounts of liquid water for soaking. This phase transition approach delivers the necessary thermal energy and moisture while dramatically reducing water consumption.

The patent employs a steam injection system that uses pneumatic principles. Steam is generated and then forced into the washing drum under pressure through controlled injection. The pressurized steam penetrates the laundry more effectively, providing intense washing action without requiring traditional water soaking. This pneumatic delivery method ensures efficient water-steam utilization while minimizing overall water consumption.

The patent implements continuous steam injection during the drying operation. Rather than intermittent heating, steam is continuously supplied to maintain optimal humidity and temperature throughout the drying process. This continuous action allows the laundry to be dried smoothly without excessive wrinkling, as the constant steam presence keeps fabrics pliable throughout the entire drying cycle, eliminating the need for subsequent ironing.

The patent utilizes the phase transition properties of steam during drying. Steam injected into the drum condenses on the laundry surfaces, releasing latent heat that gently heats and softens the fabrics. This phase change process prevents harsh direct heating that causes wrinkling, while still achieving rapid drying. The continuous condensation and re-evaporation cycles keep fabrics smooth throughout the drying process.

The patent employs a dedicated steam generator that efficiently produces high-temperature steam for sterilization. The steam is injected directly into the washing drum under controlled pressure, achieving rapid and thorough sterilization of laundry. This pneumatic steam injection system is more energy-efficient than conventional water boiling methods, as steam transfers heat more efficiently and achieves sterilization temperatures faster with lower overall energy consumption.

The patent utilizes the high energy density of steam phase for sterilization. Water is converted to steam at high temperature, and this steam is directly injected onto the laundry. The phase transition from liquid to gas provides intense thermal energy concentrated in a small volume, achieving effective sterilization much faster and with less total energy input compared to heating large amounts of water to boiling point in traditional methods.