Coolant Pump for Electric Motors
First Claim
Patent Images
1. A fluid-cooled electric motor with an internal cooling circuit throughflown by a rotary-motor cooling pump wherein the cooling pump is provided with a shaft that is separate of the electric motor shaft and is partially or completely within the housing of the electric motor.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a liquid-cooled electric motor (1) comprising an internal coolant circuit (7) driven by a motor-driven rotary coolant pump (8). Said coolant pump (8) is partially or entirely arranged inside the housing (6) of the electric motor, (1) with a shaft (8a) which is separate from the shaft (2) of the electric motor.
11 Citations
18 Claims
- 1. A fluid-cooled electric motor with an internal cooling circuit throughflown by a rotary-motor cooling pump wherein the cooling pump is provided with a shaft that is separate of the electric motor shaft and is partially or completely within the housing of the electric motor.
-
8. In combination:
-
an electric motor having a housing formed with a coolant passage, a rotor in the housing, and a shaft carrying the rotor and projecting along a motor axis from the housing; and a coolant pump having a housing at least partially recessed in the motor housing, a rotor in the pump housing, a shaft carrying the rotor and projecting along a pump axis from the pump housing, the pump shaft being offset from and not attached to the motor shaft, and an impeller on the pump shaft, the coolant passage of the motor housing extending through the pump housing and past the impeller. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification