Sir James Dyson is a British great inventor and entrepreneur.
He is worldwide known as the inventor of a bagless vacuum cleaner whose working principle is cyclonic separation (see Figure below). This technology is called Dual Cyclone™. His first US patent dates back to 1986.
The advantages of this technology are :
* no need for purchasing bags
* suction force which does not decrease over time
* higher suction force for the same power input (at least for the last version)
This concept has made Dyson's fortune, first as a license provider, then as a manufacturer (as from 1992). Actually the technology has constantly evolved. Nowadays Dyson's US market share is around one third.
In late 2000 Dyson launches commercially the Contrarotator™, a washing machine whose washing drum is divided in 2 parts and rotate in opposite way. The washing action is claimed to be greater.
Unfortunately this was not a commercial success.
In 2006 the Dyson Airblade™ is launched. This is a hand dryer which functions without heat (contrarily to almost all other air dryers). The working principle is a pair of opposite, sheet-shaped powerful air jets which wipe off water from the hands, water being mainly liquid, whereas conventional airdryers slowly evaporate water. The drying of the total hands' surface occurs through the movement of the hands in front of the jet. This is the quickest hand dryer available on the market.
And this is a commercial success. I have tested it myself several times, including in airports, and I have been impressed by its speed and performance.
Most recent Dyson's invention is the Air Multiplier™. This is a bladeless ventilator. The air is taken (with the help of a "digital motor" driving a little turbine) from its vertical base and is projected towards the user through the ring (see Figure below).
Which conclusions can be drawn from this valuable information ?
* innovation is a matter of company culture ; clearly the Dyson company belongs to the companies group called "innovators"
* all the former examples show products possessing inventive designs
* it is worth of note that the Dyson company has built and developed products, based on a key engineering competence (aerodynamics/hydrodynamics), and on the key market of domestic or public appliances
* from a TRIZ point of view, to remove/displace the apparently necessary component of a technical system, which causes some disadvantages of this technical system, might be a powerful method for the improvement of its main useful function. As shown before, the bag (or filter) causes the progressive lack of suction of the vacuum cleaner ; the heated element of the hand dryer is energetically inefficient ; the blades of the ventilator cause irregular flow, some danger for kids, noise, and difficulty to clean. In these three examples, the removing/displacing of an important component of the technical system necessitates the choice and use of a new working principle, which is based on some physical effects (cyclonic separation, air jet peculiarities).
He is worldwide known as the inventor of a bagless vacuum cleaner whose working principle is cyclonic separation (see Figure below). This technology is called Dual Cyclone™. His first US patent dates back to 1986.
The advantages of this technology are :
* no need for purchasing bags
* suction force which does not decrease over time
* higher suction force for the same power input (at least for the last version)
This concept has made Dyson's fortune, first as a license provider, then as a manufacturer (as from 1992). Actually the technology has constantly evolved. Nowadays Dyson's US market share is around one third.
In late 2000 Dyson launches commercially the Contrarotator™, a washing machine whose washing drum is divided in 2 parts and rotate in opposite way. The washing action is claimed to be greater.
Unfortunately this was not a commercial success.
In 2006 the Dyson Airblade™ is launched. This is a hand dryer which functions without heat (contrarily to almost all other air dryers). The working principle is a pair of opposite, sheet-shaped powerful air jets which wipe off water from the hands, water being mainly liquid, whereas conventional airdryers slowly evaporate water. The drying of the total hands' surface occurs through the movement of the hands in front of the jet. This is the quickest hand dryer available on the market.
And this is a commercial success. I have tested it myself several times, including in airports, and I have been impressed by its speed and performance.
Most recent Dyson's invention is the Air Multiplier™. This is a bladeless ventilator. The air is taken (with the help of a "digital motor" driving a little turbine) from its vertical base and is projected towards the user through the ring (see Figure below).
Which conclusions can be drawn from this valuable information ?
* innovation is a matter of company culture ; clearly the Dyson company belongs to the companies group called "innovators"
* all the former examples show products possessing inventive designs
* it is worth of note that the Dyson company has built and developed products, based on a key engineering competence (aerodynamics/hydrodynamics), and on the key market of domestic or public appliances
* from a TRIZ point of view, to remove/displace the apparently necessary component of a technical system, which causes some disadvantages of this technical system, might be a powerful method for the improvement of its main useful function. As shown before, the bag (or filter) causes the progressive lack of suction of the vacuum cleaner ; the heated element of the hand dryer is energetically inefficient ; the blades of the ventilator cause irregular flow, some danger for kids, noise, and difficulty to clean. In these three examples, the removing/displacing of an important component of the technical system necessitates the choice and use of a new working principle, which is based on some physical effects (cyclonic separation, air jet peculiarities).
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