INTERNAL THERMAL MANAGEMENT FOR MOTOR DRIVEN MACHINERY

• US 20100289353A1
• Filed: 07/26/2010
• Published: 11/18/2010
• Est. Priority Date: 07/25/2005
• Status: Active Grant

• Current Assignee: Daniel M. Saban, Debabrata Pal, Laurence D. Vanek
• Original Assignee: Daniel M. Saban, Debabrata Pal, Laurence D. Vanek
• Inventors: Saban, Daniel M., Vanek, Laurence D., Pal, Debabrata
• Granted Patent: US 8,456,047 B2
• Time in Patent Office: Days
• US Class Current: 310/64
• CPC Class Codes: F02C 7/12 Cooling of plants of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P
• CPC Class Codes: F04D 25/06 the pump being electrically driven F04D25/08 takes precedence
• CPC Class Codes: F04D 25/082 the unit having provision for cooling the motor
• CPC Class Codes: F04D 29/053 Shafts
• CPC Class Codes: F04D 29/5806 Cooling the drive system
• CPC Class Codes: F04D 29/584 cooling or heating the machine F04D29/5846, F04D29/5853 take precedence
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: H02K 9/10 by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
• CPC Class Codes: H02K 9/227 Heat sinks

Abstract

A motor driven assembly includes a motor having a motor inlet and a motor outlet, a shaft, and a rotor spaced radially outwards from the shaft. A cooling flow passage is located between the shaft and the rotor. The cooling flow passage fluidly connects the motor inlet and the motor outlet. A compressor is in fluid communication with the motor outlet. The compressor includes a compressor outlet that is in fluid communication with the motor inlet.

Claims

1. A motor driven assembly comprising:

a motor having a motor inlet, a motor outlet, a shaft, and a rotor spaced radially outwards from said shaft;

a cooling flow passage between said shaft and said rotor that fluidly connects said motor inlet and said motor outlet; and

a compressor in fluid communication with said motor outlet, said compressor having a compressor outlet in fluid communication with said motor inlet.

2. The assembly as recited in claim 1, wherein said motor includes a second motor inlet and a second cooling flow passage that fluidly connects the second motor inlet and the motor outlet.

3. The assembly as recited in claim 2, wherein said motor includes a motor housing, a rotor that is rotatable about an axis, and a stator located radially outward from said rotor, and said second cooling flow passage includes a stator passage between said stator and said motor housing.

4. The assembly as recited in claim 2, wherein said second cooling flow passage further includes a stator-rotor passage between said stator and said rotor.

5. The assembly as recited in claim 2, wherein said motor includes a motor housing and a stator located radially outward from said rotor, said second cooling flow passage being between said stator and said rotor.

6. The assembly as recited in claim 1, further comprising a heat exchanger outside of said motor and in fluid receiving communication with said compressor outlet.