Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Bertrand Lecointe

Stéphane Venturi

Xavier Montagne

Alexandre Pagot

Elena Sanz

Ludivine Pidol

Pierre Leduc

Richard Tilagone

Nicolas Jeuland

Vivien Delpech

Sandrine Debain

Laurent Forti

The present invention relates to an electric propulsion system () for a rolling object, comprising a frame () with at least one motorized wheel (), and at least one non-motorized wheel (), a handlebar () and coupling means (). Coupling means () are intended for gripping, orientation and lifting of at least one wheel of the rolling load. The means of orienting the wheel of the rolling object orient the wheel perpendicular to the longitudinal direction (x) of the frame.

Removable electric propulsion system for a rolling object, in particular a bed

The present invention relates to a method of controlling a spark-ignition supercharged internal-combustion engine, notably of gasoline type, comprising at least one cylinder () with a combustion chamber (), at least two intake means (), at least one fuel injection means (), at least one exhaust means () and an ignition means (). According to the invention, the method consists in preparing a fuel mixture with a fuel/air ratio greater than or equal to 1, another fuel mixture is prepared with a fuel/air ratio below 1, the two fuel mixtures are fed into the combustion chamber so as to obtain a part (C) of this chamber containing a fuel mixture with the fuel/air ratio greater than or equal to 1 and the remaining part (C) of the chamber containing the fuel mixture with the fuel/air ratio below 1.

Method of controlling a spark-ignition supercharged internal-combustion engine, notably of gasoline type

The present invention relates to a method for controlling autoignition of a fuel mixture, notably for a diesel type internal-combustion engine, according to which a fuel mixture is made in at least one combustion chamber () of the engine with a fuel and at least one fluid in order to obtain a homogeneous type combustion by autoignition. The method includes defining a desired combustion progress by autoignition of the fuel mixture, and adjusting the cetane number of the fuel used for the mixture to that of the fuel providing the desired combustion progress is obtained.

Fuel mixture autoignition control method, notably for diesel type internal-combustion engines, and engine using same

A diesel fuel formulation containing a high proportion of ethanol has a corrected flash point. This flash point modification is achieved by feeding into the mixture a liquid of low flash point such as a light fraction consisting of a C5 to C7 paraffin cut. The resultant formulation invention can be directly used in a vehicle.

High ethanol-content fuel compositions

The present invention relates to a supercharged internal-combustion, notably indirect-injection engine comprising at least one cylinder () with two types of supercharged air intake means (), one type for non-carbureted supercharged air intake () and another type for carbureted supercharged air intake (), said intake means being supplied with supercharged air by supply means (). According to the invention, supply means () comprise a specific supercharged air supply device () for each type of intake means ().

Growing community of inventors

Triel-sur-Seine, France

Bertrand Lecointe