Split nose blower scroll

Patent metadata

Field	Value
Publication number	US-11339798-B2
Application number	US-202016818831-A
Country	US
Kind code	B2
Filing date	Mar 13, 2020
Priority date	Mar 13, 2020
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A blower assembly including a scroll having a first airflow deflector nose and a second airflow deflector nose, which are offset relative to each other about a circumference of the scroll. A rotor is housed within the scroll. The first airflow deflector nose is configured to deflect airflow generated by the rotor out of the scroll to a first outlet of the blower assembly. The second airflow deflector nose is configured to deflect airflow generated by the rotor out of the scroll to a second outlet of the blower assembly.

First claim

What is claimed is:

1. A blower assembly comprising:
a scroll including a first scroll portion, a second scroll portion, and an intermediate scroll portion between the first scroll portion and the second scroll portion;
a first airflow deflector nose of the scroll and a second airflow deflector nose of the scroll, which are offset relative to each other about a circumference of the scroll;
a rotor housed within the scroll;
a first outlet of the blower assembly defined by a first joint duct extending from both the first scroll portion and the intermediate scroll portion; and
a second outlet of the blower assembly defined by a second joint duct extending from both the second scroll portion and the intermediate scroll portion, the second joint duct is between the first joint duct and the scroll;
wherein:
the first airflow deflector nose is configured to deflect airflow generated by the rotor out of the scroll to the first outlet; and
the second airflow deflector nose is configured to deflect airflow generated by the rotor out of the scroll to the second outlet.

2. The blower assembly of claim 1 , wherein the first outlet and the second outlet face in a direction perpendicular or parallel to a rotational axis of the rotor.

3. The blower assembly of claim 1 , wherein the first outlet and the second outlet face in a direction perpendicular or parallel to an inlet of the scroll.

4. The blower assembly of claim 1 , wherein the first scroll portion includes the first airflow deflector nose, and the second scroll portion includes the second airflow deflector nose.

5. The blower assembly of claim 4 , wherein the first airflow deflector nose directs airflow generated by the rotor through the first joint duct to the first outlet, and the second airflow deflector nose directs airflow generated by the rotor through the second joint duct to the second outlet.

6. The blower assembly of claim 1 , wherein the intermediate scroll portion defines an intermediate aperture in which the rotor is seated.

7. The blower assembly of claim 6 , wherein at least one of the first scroll portion and the second scroll portion defines an inlet through which air flows into the rotor.

8. A blower assembly comprising:
a scroll including a first scroll portion, a second scroll portion, an intermediate scroll portion between the first scroll portion and the second scroll portion, and a first airflow deflector nose spaced apart from a second airflow deflector nose;
a rotor housed within the scroll;
a first joint duct extending from the scroll and defining a first outlet at an end of the first joint duct, a first portion of the first joint duct is defined by the first scroll portion and a second portion of the first joint duct is defined by the intermediate scroll portion; and
a second joint duct extending from the scroll and defining a second outlet at an end of the second joint duct, the second joint duct is between the first joint duct and the scroll, a first portion of the second joint duct is defined by the second scroll portion and a second portion of the second joint duct is defined by the intermediate scroll portion;
wherein the first airflow deflector nose deflects airflow generated by the rotor through the first joint duct and out of the blower assembly through the first outlet; and
wherein the second airflow deflector nose deflects airflow generated by the rotor through the second joint duct and out of the blower assembly through the second outlet.

9. The blower assembly of claim 8 , wherein the first airflow deflector nose and the second airflow deflector nose are spaced apart about a circumference of the scroll.

10. The blower assembly of claim 8 , wherein the first outlet and the second outlet face in a direction perpendicular or parallel to a rotational axis of the rotor.

11. The blower assembly of claim 8 , wherein the first outlet and the second outlet face in a direction perpendicular or parallel to an inlet of the scroll.

12. The blower assembly of claim 8 , wherein the first scroll portion includes the first airflow deflector nose and the second scroll portion includes the second airflow deflector nose.

13. The blower assembly of claim 8 , wherein the intermediate scroll portion defines an intermediate aperture in which the rotor is seated.

14. The blower assembly of claim 13 , wherein at least one of the first scroll portion and the second scroll portion defines an inlet through which air flows into the rotor.

Assignees

• Denso Int America Inc

Inventors

• Bielicki Bradley
• Bailey Raymond
• Belanger Brian
• WAGNITZ Jason
• Hotte Simon

Classifications

• F04D17/162

  Double suction pumps · CPC title

• F04D29/422 Primary

  Discharge tongues (F04D17/04 takes precedence) · CPC title

• F04D29/4246

  comprising more than one outlet · CPC title