Fuel-Powered Steam Handle and Nozzle for Outlet-Free Surface Cleaning
Solution Overview
Problem
Existing steam-generating devices for surface treatment require electrical outlets and have limited portability and operational time, making them unsuitable for use in areas without AC power and impractical for treating both soft and hard surfaces effectively.
Innovation Solution
A portable, hand-held steam generating device with a fuel-powered heater and heat exchanger that uses a fuel permeable pad or nozzle for controlled steam emission, allowing for effective cleaning of both flat and irregular surfaces without the need for an AC electrical outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrically-powered boiler and pump system is used to generate and direct steam, then steam generation capability is achieved, but portability is reduced due to requirement of AC electrical outlet and increased weight
Solution Approach 1:
The patent replaces the electrical heating element with a fuel-powered combustion system. The combustion chamber burns fuel (such as propane or butane) to generate heat, which is then transferred to water in the heat exchanger to produce steam. This substitution eliminates the need for AC electrical outlets while maintaining reliable steam generation capability, thereby improving portability without sacrificing steam generation reliability.
2Adaptability or versatility
If a fuel-powered heater is used instead of electrical heater, then portability is improved by eliminating AC outlet requirement, but device complexity increases due to combustion system
Solution Approach 1:
The patent combines the combustion chamber and heat exchanger into a single integrated assembly. The heat exchanger is positioned within or adjacent to the combustion chamber, allowing direct heat transfer from the combustion process to the water. This merging eliminates the need for separate electrical heating elements, control circuits, and associated components, thereby reducing overall device complexity while maintaining portability improvements.
Solution Approach 2:
The combustion system is designed to be self-regulating through natural convection and heat transfer principles. The combustion chamber automatically draws in air for combustion and expels hot gases through convection currents, eliminating the need for complex electronic controls, sensors, and actuators. This self-service approach simplifies the system while preserving the portability benefits of fuel-powered operation.
3Adaptability or versatility
If steam is generated for both soft and hard surfaces, then versatility is improved, but device complexity increases due to multiple nozzle configurations
Solution Approach 1:
The patent employs a universal nozzle design that can deliver steam in multiple patterns (focused stream and diffuse plume) through a single device. The nozzle geometry and steam delivery system are designed to naturally produce different steam patterns based on operational conditions, eliminating the need for multiple interchangeable nozzles or complex switching mechanisms. This universal design achieves versatility for treating both soft and hard surfaces while minimizing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a controllable, focused steam output suitable for disinfecting and sanitizing various surfaces, including hard and soft surfaces, with a temperature range of 175° F to 300° F, enabling efficient cleaning and sanitizing without the constraints of electrical power.
Implementation Method 1
a fuel powered heater positioned on a side of the wall of the heat exchanger opposite the interior space of the heat exchanger
Implementation Method 2
A first section of the wall of the heat exchanger transfers heat from the heater to water located in the interior space of the heat exchanger for generating steam from the water
Implementation Method 3
generating steam from the water located in the interior space of the heat exchanger
Implementation Method 4
A first section of the wall of the heat exchanger transfers heat from the heater to water located in the interior space of the heat exchanger
Data Source
AI summary
A steam generating device has a handle and a nozzle or pad attached to the handle for treating a surface. The handle includes a heat exchanger, a water reservoir, a fluid conduit in fluid communication with the water reservoir and heat exchanger, and a fluid delivery system for moving water from the water reservoir, through the fluid conduit, and into the heat exchanger. A fuel powered heater is positioned on a side of the wall of the heat exchanger opposite the interior space of the heat exchanger. A first section of the wall of the heat exchanger transfers heat from the heater to water located in the heat exchanger for generating steam from the water located in the heat exchanger. A second section of the wall of the heat exchanger includes an opening that allows steam to exit the heat exchanger and handle and flow through the nozzle or pad.