29 Pneumatics and hydraulics

Use gas and liquid parts of an object instead of solid parts (e.g. inflatable, filled with liquids, air cushion, hydrostatic, hydro-reactive).
  • SUV with air suspension: low on highway for aerodynamics, high on trails for clearance.
  • Comfortable shoe sole inserts filled with gel
  • Store energy from decelerating a vehicle in a hydraulic system, then use the stored energy to accelerate later.
Principe 29 : SUV with air suspension: low on highway for aerodynamics, high on trails for clearance.


From TRIZ to ASIT

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Concrete examples

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Is this TRIZ principle frequently used?

This principle is moderately used with 118 instances in the matrix.

This principle is proposed to solve the following contradictions:

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1/3 1/5 1/7 1/17 1/35 1/37 2/4 2/11 2/12 2/35 3/1 3/12 3/14 3/23 3/25 3/26 3/27 3/29 3/32 3/33 3/39 4/2 4/25 4/27 5/1 5/9 5/12 5/26 5/27 6/29 7/1 7/9 7/12 7/26 7/32 7/35 7/37 9/5 9/7 9/26 10/26 10/29 11/2 12/1 12/3 12/23 12/35 12/36 13/20 14/5 14/25 14/26 14/39 15/34 15/36 15/37 17/23 19/12 19/36 20/13 21/12 22/39 23/3 23/7 23/12 23/27 23/31 25/3 25/14 25/17 25/36 26/3 26/5 26/7 26/9 26/19 26/30 26/32 26/33 26/35 26/37 26/39 27/4 27/23 27/39 29/3 29/5 29/6 30/26 30/36 30/37 31/24 32/1 32/3 32/7 33/12 33/15 34/15 35/2 35/3 35/5 35/7 35/19 35/21 35/36 36/12 36/19 36/23 36/25 36/30 36/35 37/7 37/15 37/26 37/30 37/32 39/14 39/22


The colour indicates the ranking of the proposed principle to solve the contradiction: 1st, 2nd, 3rd, 4th.
This ranking reflects the frequency of occurrence of the principle in the analysed patents for this type of contradiction.
When a principle appears in first position, it means that it is statistically the most used in the patents studied for this type of problem.

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