F - MECHANICAL ENGINEERING
F01 - MACHINES OR ENGINES IN GENERAL
F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F - MECHANICAL ENGINEERING
F28 - HEAT EXCHANGE IN GENERAL
F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F - MECHANICAL ENGINEERING
F01 - MACHINES OR ENGINES IN GENERAL
F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N5/00 - Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
F - MECHANICAL ENGINEERING
F28 - HEAT EXCHANGE IN GENERAL
F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F1/003 - {Multiple wall conduits, e.g. for leak detection
F28F1/105 - {the means being corrugated elements extending around the tubular elements}
F28F1/30 - the means being attachable to the element
G - PHYSICS
G01 - MEASURING
G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
G01M3/045 - {with electrical detection means}
G - PHYSICS
G21 - NUCLEAR PHYSICS
G21C - NUCLEAR REACTORS
G21C17/04 - Detecting burst slugs
Y - NEW / CROSS SECTIONAL TECHNOLOGIES
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/30 - Nuclear fission reactors
Y - NEW / CROSS SECTIONAL TECHNOLOGIES
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE