E-charger with hybrid dampening system

An e-charger comprising:

• a shaft supported for rotation about an axis;
• a compressor wheel that is attached to the shaft;
• an electric motor configured to drive the shaft and the compressor wheel in rotation;
• a housing that houses the electric motor and at least part of the shaft, the housing including a motor case that encases the electric motor and an outer housing that houses the motor case, wherein the outer housing includes a bearing mount with an inner diameter surface and an outer diameter surface;
• a bearing that is attached to the inner diameter surface of the bearing mount and the shaft, the bearing supporting rotation of the shaft relative to the bearing mount;
• a dampening system incorporated in the housing and configured to dampen loads transferring through the housing, the dampening system including at least one solid-state dampener that is resiliently flexible, the dampening system including at least one fluid viscous dampener that includes a coolant fluid provided between the motor case and the outer housing;
• and
• the at least one solid-state dampener comprising a sealing dampener that is resiliently flexible, that seals against the motor case and the outer housing, and that defines a fluid boundary for the coolant fluid;
• wherein the sealing dampener is disposed between and is sealed to the outer diameter surface of the bearing mount and the motor case.

An e-charger comprising:

• a shaft supported for rotation about an axis;
• a compressor wheel that is attached to the shaft;
• an electric motor configured to drive the shaft and the compressor wheel in rotation;
• a motor case that encases the electric motor;
• an outer housing that houses the motor case, the outer housing including a first member and a second member;
• a cooling system including a coolant jacket defined between the outer housing and the motor case, the coolant jacket surrounding the motor case and provided on a first longitudinal end face, a second longitudinal end face, and an outer face of the motor case, the coolant jacket defining a plurality of coolant passages arranged along a flow path from an inlet to an outlet;
• and
• a dampening system including:
• a solid-state radial dampener that is disposed radially between the first member and the second member of the outer housing and that is configured to resiliently flex to dampen radial loads transferred between the first and second members;
• a first sealing dampener disposed longitudinally between and sealed to first opposing longitudinal surfaces of the motor case and the outer housing, the first sealing dampener providing a first fluid barrier for the coolant and configured to resiliently flex to dampen longitudinal loads transferred between the motor case and the outer housing;
• a second sealing dampener disposed longitudinally between and sealed to second opposing longitudinal surfaces of the first member and the second member of the outer housing, the second sealing dampener providing a second fluid barrier for the coolant and configured to resiliently flex to dampen longitudinal loads transferred between the first member and the second member;
• and
• a plurality of viscous dampeners cooperatively defined by corresponding nesting surfaces of the motor case and the outer housing, the corresponding nesting surfaces separating different ones of the plurality of coolant passages, the corresponding nesting surfaces configured to receive an amount of the coolant therebetween to provide viscous dampening between the motor case and the outer housing.