Motor cooling system for e-boosting device
AssigneeGarrett Transportation I Inc.
InventorsPetr Balon, Philippe Renaud, Baptiste Van Haesebroeck
Life of this patent
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Abstract
A motor assembly for an e-boosting device is disclosed. The motor assembly includes a motor case and a motor cavity within the motor case. The motor case is configured to receive an electric motor that is configured to drivingly rotate a rotor about an axis of rotation. The motor assembly also includes a through-hole defined by the motor case. The motor case configured to be received in an outer housing to cooperatively define a coolant jacket with the outer housing. The coolant jacket includes a fluid flow path defined partly by the through-hole. Methods of manufacturing the motor assembly are also disclosed.
Claims18
A motor assembly for an e-boosting device comprising:
- a motor case;
- a motor cavity within the motor case configured to receive an electric motor that is configured to drivingly rotate a rotor about an axis of rotation;
- a through-hole independently defined by the motor case to pass through the motor case;
- and
- the motor case configured to be received in an outer housing to cooperatively define a coolant jacket with the outer housing, the coolant jacket including a fluid flow path defined partly by the through-hole, the motor case defining a shell portion that covers over the electric motor and a projecting portion that projects from the shell portion in an outboard direction, the through-hole being defined at least partly by the projecting portion, and the shell portion and the projecting portion being made of different materials.
A method of manufacturing an e-boosting device comprising:
- providing an electric motor that is configured to drivingly rotate a rotor;
- forming a motor case to include a shell portion and a projecting portion that projects from the shell portion in an outboard direction, including forming the shell portion from a first material and forming the projecting portion from a second material that is different from the first material, and including forming a through-hole that is independently defined by the motor case to pass through the motor case, the through-hole being defined at least partly by the projecting portion;
- encasing the electric motor within a motor cavity of the motor case;
- disposing the motor cavity within an outer housing to define a coolant jacket of a cooling system, the coolant jacket cooperatively defined by the outer housing and the motor case, the coolant jacket including a fluid passage defined by the through-hole.
Dependencies are inferred from the claim text.