Abstract: The present invention relates to a speed transmission device for a hybrid type motor vehicle comprising a primary transmission shaft (34) connected to a thermal engine (10) through a disengaging coupling (38) and carrying at least two primary toothed wheels (50, 52) cooperating with at least two secondary toothed wheels (54, 56) carried by a secondary transmission shaft (36) connected to an axle shaft (20) of the vehicle and to an electric machine (12). According to the invention, one (54) of the secondary toothed wheels is carried by secondary shaft (36) through a one-way coupling (58).

Abstract: The present invention relates to a powertrain for a hybrid type motor vehicle comprising a driving/receiving machine (20), a thermal engine (10), a speed variation device (14) including an engine epicyclic gear train (24) with a sun gear (34) and a crown (44), each connected to engine shaft (12) by a controlled clutch (26, 28) and to a fixed part (42) of the powertrain by a one-way clutch (30, 32) and a planet gear carrier (48), another machine epicyclic gear train (58) comprising a sun gear (56), a crown (66) and a planet gear carrier (60) connected to a device (79) for motion transmission to a drive axle (16), and a rotating motion transmission track for the link between the engine shaft and the motion transmission device. The invention, motion transmission track (90, 124) comprises a controlled link (80, 94, 134) between engine shaft (12) and at least one of elements (48, 56, 60, 66) of one of epicyclic gear trains (24, 58).

Abstract: The invention is a powertrain for a hybrid type motor vehicle comprising a driving/receiving machine (20), a thermal engine (10), a speed variation device (14) including an engine epicyclic gear train (24) with a sun gear (34) and a crown (46), each connected to engine shaft (12) by a controlled clutch (26, 28) and to a fixed part (44) of the vehicle by a one-way automatic clutch (30, 32) and a planet gear carrier, (52) and another epicyclic gear train (68) arranged on a shaft (70) substantially parallel to engine shaft (12) and connecting engine epicyclic gear train (24) to a transmission track (90, 92) for motion transmission to a drive axle (16). The powertrain comprises a thermal reverse control device (111, 130) for reversing the direction of rotation of planet gear carrier (80) of the other epicyclic gear train (68) from the rotation of planet gear carrier (52) of engine epicyclic gear train (24).

Abstract: The present invention relates to a speed variation transmission device for a motor vehicle powertrain comprising an epicyclic gear train (26) with a sun gear (36) and a crown (50) connected to shaft (12) of thermal engine (10) of said vehicle, as well as a planet gear carrier (58) connected by a motion transmission track (102) to drive axle (16) of this vehicle. According to the invention, sun gear (36) and crown (50) are connected each to engine shaft (12) by a controlled coupling (28, 30) and to a fixed part (48a, 48b) of the vehicle powertrain by a one-way coupling (32, 34).

Abstract: The present invention is a powertrain for a hybrid type motor vehicle comprising an electric machine (22), a thermal engine (10), a speed variation device (14) including an engine epicyclic gear train (26) with a sun gear (36) and a crown (50), each connected to shaft (12) of thermal engine (10) by a controlled clutch (28, 30) and to a fixed portion (48) of the vehicle by a one-way coupling (32, 34), and a motion transmission track (120, 122) for motion transmission to a drive axle (16). The powertrain comprises another epicyclic gear train (96) connecting engine epicyclic gear train (26) to said motion transmission track (120, 122).

Abstract: The present invention relates to a travel system for a hybrid type motor vehicle comprising a thermal engine (10) with a shaft (12), an electric machine (14) with a rotor (16) connected to electric accumulators (72), a drive shaft (16) controlled in rotation by the machine and/or the engine for rotating the motive axle (60) of the vehicle, and a rotating speed variation device (13) between said drive shaft and shaft (12) of engine (10). According to the invention, the speed variation device comprises at least two alternate paths (VT1, VT2) for motion transmission to motive axle (60) controlled each by a disengageable coupling (30, 36).

Abstract: The present invention is a powertrain for a hybrid type motor vehicle comprising an electric machine (22), a thermal engine (10), a speed variation device (14) including an engine epicyclic gear train (26) with a sun gear (36) and a crown (50), each connected to shaft (12) of thermal engine (10) by a controlled clutch (28, 30) and to a fixed portion (48) of the vehicle by a one-way coupling (32, 34), and a motion transmission track (120, 122) for motion transmission to a drive axle (16). The powertrain comprises another epicyclic gear train (96) connecting engine epicyclic gear train (26) to said motion transmission track (120, 122).

Abstract: The present invention relates to an internal-combustion engine comprising at least one cylinder (10, 12, 14, 16) including intake means with an intake valve (22), exhaust means with an exhaust valve (32) and control means (40, 42) for controlling opening/closing of the valves, said control means comprising drive means (44) and means (56) 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 (56) comprise a rocker arm (58) with at least two rockers (72, 74) disengageable from a pad (62) controlling the motion of said valve.

Abstract: The present invention relates to a speed transmission device for a hybrid type motor vehicle comprising a primary transmission shaft (34) connected to a thermal engine (10) through a disengaging coupling (38) and carrying at least two primary toothed wheels (50, 52) cooperating with at least two secondary toothed wheels (54, 56) carried by a secondary transmission shaft (36) connected to an axle shaft (20) of the vehicle and to an electric machine (12). According to the invention, one (54) of the secondary toothed wheels is carried by secondary shaft (36) through a one-way coupling (58).

Abstract: 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.

Abstract: The present invention relates to a speed variation transmission device for a motor vehicle powertrain comprising an epicyclic gear train (26) with a sun gear (36) and a crown (50) connected to shaft (12) of thermal engine (10) of said vehicle, as well as a planet gear carrier (58) connected by a motion transmission track (102) to drive axle (16) of this vehicle. According to the invention, sun gear (36) and crown (50) are connected each to engine shaft (12) by a controlled coupling (28, 30) and to a fixed part (48a, 48b) of the vehicle powertrain by a one-way coupling (32, 34).

Abstract: The present invention relates to a travel drive system for a hybrid vehicle, comprising a thermal engine (10), notably an internal-combustion engine, with a shaft (12), at least one electric machine (14) with a rotor (16) supplied by batteries (18), a disengageable coupling (22) between said shaft and said rotor, and a driven shaft (42) driving the wheels of the vehicle. According to the invention, the system comprises a first transmission path (36) for motion transmission between shaft (12) of thermal engine (10) and driven shaft (42), and a second transmission path (40) for motion transmission between rotor (16) of machine (14) and said driven shaft.

Abstract: The present invention relates to an internal-combustion engine comprising at least one cylinder (10, 12, 14, 16) including intake means with an intake valve (22), exhaust means with an exhaust valve (32) and control means (40, 42) for controlling opening/closing of the valves, said control means comprising drive means (44) and means (56) 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 (56) comprise a rocker arm (58) with at least two rockers (72, 74) disengageable from a pad (62) controlling the motion of said valve.

Abstract: The present invention relates to an internal-combustion engine comprising at least one cylinder (10) in which a piston (14) slides between a top dead center (TDC) and a bottom dead center (BDC) under the action of a connecting rod (20) of axis XX and a crankshaft (38) controlling the displacement of the piston under the effect of an articulated linking system (26) allowing variation of the engine displacement and/or compression ratio. The articulated linking system comprises a shift lever (26) mounted to pivot around an articulation axle (46) and is displaceable in translation in at least one direction by displacement control means (52, 52V). The shift lever comprises a porthole (44) within which the axle is housed and is connected by one (24) of its ends to the connecting rod and by the other (28) end to a link (32) connected to the crankshaft. Shift lever (26) comprises a slider (78) carrying articulation axle (46) and cooperating with opening (44) of the lever.

Abstract: The present invention relates to a supercharged internal-combustion, notably indirect-injection engine comprising at least one cylinder (10) with two types of supercharged air intake means (12, 14), one type for non-carbureted supercharged air intake (12) and another type for carbureted supercharged air intake (14), said intake means being supplied with supercharged air by supply means (38). According to the invention, supply means (38) comprise a specific supercharged air supply device (46, 50) for each type of intake means (12, 14).