Institut Francais Du Pe'trole

Renault S.a.s.

Psa Peugeot Citroen

Peugeot Citroen Automobiles Sa

Jean-Pierre Dumas

Xavier Montagne

Michel Castagne

Thierry Mazoyer

Richard Levesque

Michel Pasquereau

Patrick Fayet

Jean-Francedillaois Papagni

The invention relates to a device for measuring at least the pressure of a fluid present in a chamber (), comprising a sensitive element () arranged in a housing (), supported by a joint () inserted between two elements () which form said chamber. According to the invention, the housing () is open in the direction of the chamber () and the sensitive element () is enclosed in a material () filling said housing.

Device for pressure measurement, particularly in a combustion chamber of an internal combustion engine

The present invention is a system for specific pollutants contained in diluted exhaust gases from thermal combustion engines, comprising a first module (1) which samples aldehyde and ketone emissions and a second module (2) which samples hydrocarbon emissions. The system according to the invention further comprises a control which coordinates the sampling(s) with predetermined working phases of the thermal engine. The first module (1) comprises a circuit (3) for trapping the aldehydes and the ketones contained in the diluted exhaust gases and a dilution air sampling circuit (4).

System for sampling specific pollutants contained in diluted exhaust

Growing community of inventors

Sartrouville, France

Jean-Pierre Dumas