Compressor driving motor and cooling method for same
US-2018094626-A1 · Apr 5, 2018 · US
Motor cooling systems
US11201524B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11201524-B2 |
| Application number | US-201916453296-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2019 |
| Priority date | Jun 26, 2019 |
| Publication date | Dec 14, 2021 |
| Grant date | Dec 14, 2021 |
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- Title
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- Abstract
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- Assignees and inventors
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Abstract
Official abstract text for this publication.
A system can include a compressor outlet line configured to receive compressor outlet flow from a compressor, a bypass line in fluid communication with the compressor outlet line and a motor outlet line to divert a bypass flow of the compressor outlet flow. The system can include at least one pump in fluid communication between the bypass line and the motor outlet line such that the bypass flow at least partially drives the pump to pull cooling flow through a motor to cool the motor.
First claim
Opening claim text (preview).
What is claimed is: 1. A system, comprising: a compressor outlet line configured to receive compressor outlet flow from a compressor; a bypass line in fluid communication with the compressor outlet line and a motor outlet line to divert a bypass flow of the compressor outlet flow; at least one pump in fluid communication between the bypass line and the motor outlet line such that the bypass flow at least partially drives the pump to pull cooling flow through a motor to cool the motor, the motor and the compressor connected to the motor to be driven by the motor; and a ram air inlet line in fluid communication with the motor such that air passes from the ram air inlet line, through the motor, to the motor outlet line to receive heat at least from motor stator windings, wherein the pump is disposed in the ram air inlet line. 2. The system of claim 1 , wherein the pump is a passive pump that has no moving parts. 3. The system of claim 2 , wherein the pump is an ejector pump configured to create a pressure drop by effusing bypass flow into or downstream of the motor outlet line. 4. The system of claim 1 , wherein the cooling flow is ram air. 5. The system of claim 1 , further comprising at least one valve disposed between the compressor outlet line and the bypass line, wherein the valve is configured to modify bypass flow. 6. The system of claim 5 , wherein the valve is disposed on the bypass line. 7. The system of claim 5 , wherein the valve is configured to turn bypass flow on or off. 8. The system of claim 5 , wherein the valve is configured to meter bypass flow. 9. The system of claim 1 , further comprising a heat exchanger in fluid communication with the compressor outlet line. 10. The system of claim 9 , further comprising a second compressor connected to the motor to be driven by the motor and in fluid communication with the heat exchanger to receive flow from the heat exchanger.
Assignees
Inventors
Classifications
for evacuating · CPC title
- H02K9/10Primary
by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing · CPC title
using a source of partial vacuum or sub-atmospheric pressure · CPC title
cooling or heating the machine (F04D29/5846, F04D29/5853 take precedence) · CPC title
Cooling the drive system · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11201524B2 cover?
- A system can include a compressor outlet line configured to receive compressor outlet flow from a compressor, a bypass line in fluid communication with the compressor outlet line and a motor outlet line to divert a bypass flow of the compressor outlet flow. The system can include at least one pump in fluid communication between the bypass line and the motor outlet line such that the bypass flow…
- Who is the assignee on this patent?
- Hamilton Sundstrand Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K9/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 14 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).