Gm Global Technolgoy Operations, Inc.

Venu G Ganti

Dumitru Puiu

Rodney E Baker

Avinash Singh

Hai Xu

Sen J Zhou

Justin E Ketterer

Ryan M Heinbuch

Craig D Reynolds

Hung-Yih Isaac Du

Hun J Kim

Pavan Kumar Patruni

Dhanasekar Baladhandapani

A drive system includes a prime mover that provides an input, and an output system that is driven by the input. A torque transfer system is coupled between the prime mover and the output system. The torque transfer system includes two gear planes. Each of the gear planes includes a pair of gear meshes, and each of the pair of gear meshes has a floating structure.

Drive system with balanced loads

A noise vibration harshness reduction assembly includes a housing, a component, and an axial ring. The component is supported via the housing and movable relative to the housing. The axial ring is disposed axially along the component. The axial ring is configured to attenuate axial sound inducing vibrations in response to operation of the component.

Noise vibration harshness reduction assembly and methods, an axial ring configured to attenuate sound inducing vibrations

An engine assembly includes a crankshaft, a control shaft, a drive gear fixed to the crankshaft, a carrier, a first planetary gear set, an actuator, and a second planetary gear set. The first planetary gear set includes a first sun gear fixed to ground, a first ring gear engaged with the drive gear, and a first planet gear rotatably mounted on the carrier and engaged with the first ring gear and the first sun gear. The second planetary gear set includes a second sun gear fixed to the actuator, a second ring gear coupled with the control shaft, and a second planet gear rotatably mounted on the carrier and engaged with the second ring gear and the second sun gear. The actuator is operable to rotate the second sun gear and thereby adjust a ratio of a rotational speed of the crankshaft to a rotational speed of the control shaft.

Engine assembly including gearbox for varying compression ratio of engine assembly using stationary actuator

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Troy, MI, United States of America

Venu G Ganti