Particle separation system

Patent metadata

Field	Value
Publication number	US-10369503-B2
Application number	US-201615176970-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 8, 2016
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A particle separation device to remove particulate matter from an exterior air flow for use with an environmental control system includes a curved airflow path with an inner radius and an outer radius, the curved air flow path to receive the exterior air flow, a particle passage disposed along at least one of the inner radius and the outer radius to receive the particulate matter from the exterior air flow, a circumferential volute to receive the particulate matter from the particle passage, and a duct to transport the particulate matter from the circumferential volute to a downstream region.

First claim

What is claimed is:

1. A particle separation device to remove particulate matter from an exterior air flow for use with an environmental control system, the particle separation device comprising:
a curved airflow path with an inner radius and an outer radius, the curved air flow path to receive the exterior air flow;
a particle passage disposed along at least one of the inner radius and the outer radius to receive the particulate matter from the exterior air flow;
a circumferential volute to receive the particulate matter from the particle passage; and
a duct to transport the particulate matter from the circumferential volute to a downstream region,
wherein:
the exterior air flow moves in a first predominant direction, and
the curved airflow path redirects a portion of the exterior air flow, which is not received in the particle passage, such that the portion of the exterior air flow exits the curved airflow path in a second predominant direction opposite the first predominant direction for reception in the downstream region wherein: the duct comprises a first axial component extending from the circumferential volute, a radial component extending from an end of the first axial component and a second axial component extending from an end of the radial component to a first portion of the downstream region, the curved airflow path redirects the exterior air flow approximately 180 degrees into a second portion of the downstream region, and a heat exchanger is interposed between the first and second portions of the downstream region.

2. The particle separation device of claim 1 , wherein the particle separation device is disposed upstream of a heat exchanger.

3. The particle separation device of claim 2 , wherein the downstream region is downstream of the heat exchanger.

4. The particle separation device of claim 1 , wherein the particle separation device is disposed downstream of a fan.

5. The particle separation device of claim 1 , further comprising a bypass valve to direct the exterior air flow beyond the curved air flow path.

6. The particle separation device of claim 1 , further comprising a contracting passage to direct the exterior air flow to the curved air flow path.

7. The particle separation device of claim 1 , further comprising at least one sprayer to spray a liquid into the exterior air flow.

8. A particle separation system to remove particulate matter from an exterior air flow for use with an environmental control system, the particle separation system comprising:
a fan to accelerate the exterior air flow;
a curved airflow path with an inner radius and an outer radius, the curved air flow path to receive the exterior air flow;
a heat exchanger to receive the exterior air flow from the curved air flow path;
a particle passage disposed along at least one of the inner radius and the outer radius to receive the particulate matter from the exterior air flow;
a circumferential volute to receive the particulate matter from the particle passage; and
a duct to transport the particulate matter from the circumferential volute to a downstream region disposed downstream of the heat exchanger,
wherein:
the exterior air flow moves in a first predominant direction, and
the curved airflow path redirects a portion of the exterior air flow, which is not received in the particle passage, such that the portion of the exterior air flow exits the curved airflow path in a second predominant direction opposite the first predominant direction for reception in the downstream region wherein: the duct comprises a first axial component extending from the circumferential volute, a radial component extending from an end of the first axial component and a second axial component extending from an end of the radial component to a first portion of the downstream region, the curved airflow path redirects the exterior air flow approximately 180 degrees into a second portion of the downstream region, and a heat exchanger is interposed between the first and second portions of the downstream region.

9. The particle separation system of claim 8 , further comprising a bypass valve to direct the exterior air flow beyond the curved air flow path.

10. The particle separation system of claim 8 , further comprising a contracting passage to direct the exterior air flow to the curved air flow path.

11. The particle separation system of claim 8 , further comprising at least one sprayer to spray a liquid into the exterior air flow.

12. The particle separation system of claim 11 , wherein the at least one sprayer is disposed upstream of the fan.

13. The particle separation system of claim 11 , wherein the at least one sprayer is disposed upstream of the heat exchanger.

14. The particle separation system of claim 8 , wherein the fan is a shaft powered fan.

15. The particle separation system of claim 8 , wherein the fan includes a flow device to direct the exterior air flow.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Prasad Dilip
• Hipsky Harold W
• Zywiak Thomas M

Classifications

• B01D45/12

  by centrifugal forces (centrifuges B04B; cyclones B04C) · CPC title

• B01D45/02

  by utilising gravity · CPC title

• B64D13/00

  Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space · CPC title

• B01D45/04

  by utilising inertia (B01D45/12 takes precedence) · CPC title

• B01D53/26

  Drying gases or vapours · CPC title