Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Stéphane Venturi

Thierry Colliou

Bertrand Lecointe

Alexandre Pagot

Bruno Walter

Luca Favre

Elena Sanz

Pierre Leduc

Julien Boisson

Fabrice Le Berr

Philippe Pagnier

Pascal Smague

Benjamin Gaussens

Misa Milosavljevic

Thomas Valin

Richard Tilagone

Vivien Delpech

Sandrine Debain

Sebastien Magand

Yoann Viollet

Jocelyn Terver

David Serrano

Abdenour Abdelli

Eric Peuriere

Benoit Talvard

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 compression device driven by an electric machine, for which the rotor () comprises a rotor shaft (), a cylindrical magnet (), and a non-magnetic shrink ring (). According to the invention, the rotor shaft () includes a bore () for inserting one end of the compressor shaft () to unitize the two shafts.

Device for compressing a fluid, driven by an electric machine with a rotor shaft having a non-magnetic shrink ring

The present invention relates to a device for controlling the amount of air fed to the intake of a turbocharged internal-combustion engine comprising a turbocharging system including a turbocharger () with a turbine () connected to at least one exhaust gas outlet of said engine, as well as an outside air compressor (), a line () for partial transfer of the compressed air from the compressor to the turbine inlet, and an EGR line () between an exhaust gas outlet and a compressed air intake line (). The device is characterized in that the partial transfer line and the EGR line share at least one common portion ().

Device and method for controlling the injection of air and exhaust gas at the intake of a supercharged internal-combustion engine

The present invention is a powertrain for a hybrid vehicle, comprising a driving and receiving machine (), a thermal engine () and engine shaft (), a speed variation device () including an engine epicyclic gear train () with a sun gear () and a crown () which are each connected to the engine shaft () by an engine controlled coupling () and to a fixed part () of the powertrain by a one-way automatic coupling (). A planet gear carrier () and a machine epicyclic gear train () are arranged on a shaft () substantially parallel to engine shaft (). The planet gear carrier comprises a sun gear (), a crown (), a planet gear carrier () and an epicyclic gear train controlled coupling (). The speed variation device () comprises a device () for connecting and disconnecting and electrical machine () with a machine epicyclic gear train ().

Hybrid vehicle powertrain with a device for connecting/disconnecting the electric machine

A powertrain for an automotive vehicle comprising a thermal engine (), a speed variation device () including an engine epicyclic gear train () with a sun gear () and a crown () which are each connected to shaft () of the thermal engine by a controlled coupling () and to a fixed part () of the vehicle by a one-way automatic coupling (). A machine epicyclic gear train () is arranged on a machine shaft () substantially parallel to engine shaft () and connects the epicyclic gear train to a track for motion transmission to a drive axle. The machine epicyclic gear train comprises a sun gear () carried by a sun gear shaft (), a crown () and a planet gear carrier (). A speed variation device () comprises an additional epicyclic gear train () and an engine toothed wheel () carried by the shaft () and connects the shaft to a machine toothed wheel carried by additional epicyclic gear train.

Power train for driving a motor vehicle with a variable-speed transmission device having a triple planetary gear set and especially a power train for a hybrid-type vehicle

The present invention relates to a powertrain for a hybrid type vehicle with a thermal engine (), notably of internal-combustion type, an electric machine () connected to an axle shaft () of the vehicle and a transmission device () comprising a primary transmission shaft () connected to drive shaft () of thermal engine () through a disengageable coupling () and carrying at least two first gear wheels () cooperating with at least two second gear wheels () carried by a secondary transmission shaft () connected to the axle shaft. According to the invention, primary transmission shaft () is connected to an auxiliary electric machine ().

Powertrain for a hybrid type vehicle

The present invention relates to a speed transmission device for a hybrid type motor vehicle comprising a primary transmission shaft () connected to a thermal engine () through a disengaging coupling () and carrying at least two primary toothed wheels () cooperating with at least two secondary toothed wheels () carried by a secondary transmission shaft () connected to an axle shaft () of the vehicle and to an electric machine (). According to the invention, one () of the secondary toothed wheels is carried by secondary shaft () through a one-way coupling ().

Speed transmission device for a hybrid type motor vehicle

The present invention relates to a speed variation transmission device for a motor vehicle powertrain comprising an epicyclic gear train () with a sun gear () and a crown () connected to shaft () of thermal engine () of said vehicle, as well as a planet gear carrier () connected by a motion transmission track () to drive axle () of this vehicle. According to the invention, sun gear () and crown () are connected each to engine shaft () by a controlled coupling () and to a fixed part () of the vehicle powertrain by a one-way coupling ().

Speed variation transmission device for motor vehicle powertrain and hybrid motor vehicle using same

The present invention is a powertrain for a hybrid type motor vehicle comprising an electric machine (), a thermal engine (), a speed variation device () including an engine epicyclic gear train () with a sun gear () and a crown (), each connected to shaft () of thermal engine () by a controlled clutch () and to a fixed portion () of the vehicle by a one-way coupling (), and a motion transmission track () for motion transmission to a drive axle (). The powertrain comprises another epicyclic gear train () connecting engine epicyclic gear train () to said motion transmission track ().

Powertrain with double epicyclic gear train for a hybrid type motor vehicle

The present invention relates to a travel system for a hybrid type motor vehicle comprising a thermal engine () with a shaft (), an electric machine () with a rotor () connected to electric accumulators (), a drive shaft () controlled in rotation by the machine and/or the engine for rotating the motive axle () of the vehicle, and a rotating speed variation device () between said drive shaft and shaft () of engine (). According to the invention, the speed variation device comprises at least two alternate paths (VT, VT) for motion transmission to motive axle () controlled each by a disengageable coupling ().

Travel system for a hybrid type motor vehicle and method for driving same

The present invention relates to an internal-combustion engine comprising at least one cylinder () including intake means with an intake valve (), exhaust means with an exhaust valve () and control means () for controlling opening/closing of the valves, said control means comprising drive means () and means () intended for motion and load transmission between said control means and the valve to be controlled. According to the invention, motion and load transmission means () comprise a rocker arm () with at least two rockers () disengageable from a pad () controlling the motion of said valve.

Internal-combustion engine of the type with at least one cylinder working in degraded mode

A travel drive system for a hybrid vehicle includes a thermal engine with an engine output shaft carrying a clutch, a driven shaft connected to said clutch and linked to a speed variation means, at least one electric machine with a rotor, and a motion transmission chain between speed variation means and wheels of the vehicle, said chain comprising an output shaft for the speed variation means and a motive axle connected to said output shaft. The system includes a disengageable coupling between one of the elements of the transmission chain and rotor of electric machine, and another disengageable coupling between output shaft of thermal engine and said rotor.

Travel drive system for hybrid vehicle and method using same

The present invention relates to an internal-combustion engine comprising at least one cylinder () in which a piston () slides between a top dead center (TDC) and a bottom dead center (BDC) under the action of a connecting rod () of axis XX and a crankshaft () controlling the displacement of the piston under the effect of an articulated linking system () allowing variation of the engine displacement and/or compression ratio. The articulated linking system comprises a shift lever () mounted to pivot around an articulation axle () and is displaceable in translation in at least one direction by displacement control means (V). The shift lever comprises a porthole () within which the axle is housed and is connected by one () of its ends to the connecting rod and by the other () end to a link () connected to the crankshaft. Shift lever () comprises a slider () carrying articulation axle () and cooperating with opening () of the lever.

Variable displacement and/or variable compression ratio engine

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

Roiffieux, France

Stéphane Venturi