SILENCER FOR AN AIR BLOWER ASSEMBLY AND AIR BLOWER ASSEMBLY HAVING THE SILENCER

• US 20190331136A1
• Filed: 03/15/2019
• Published: 10/31/2019
• Est. Priority Date: 04/25/2018
• Status: Active Grant

• Current Assignee: Sonny'S Enterprises, LLC
• Original Assignee: Sonny'S Enterprises, LLC
• Inventors: FAZIO, PAUL, ANALETTO, ANTHONY
• Granted Patent: US 11,035,384 B2
• Time in Patent Office: Days
• CPC Class Codes: F04D 17/16 for displacing without appreciable compression
• CPC Class Codes: F04D 29/4213 suction ports
• CPC Class Codes: F04D 29/4226 Fan casings
• CPC Class Codes: F04D 29/664 by means of sound absorbing material
• CPC Class Codes: F05D 2260/96 Preventing, counteracting or reducing vibration or noise

Abstract

An air blower assembly has a main housing with an air inlet opening and an air inlet housing is disposed around the air inlet opening and connected to the main housing. The air inlet housing defines an air inlet channel leading into the air inlet opening in the main housing. An air outlet channel is connected to the main housing, the air outlet is fluidically connected to the air inlet channel. A fan is disposed in the main housing for driving airflow through the air inlet channel to the air outlet. A silencer covers the air inlet housing and redirects air into the air inlet channel. The silencer controls the direction of air flow into the air inflow channel and noises generated by the fan assembly and the air flow stream are absorbed by a noise cancelling material and walls of the silencer.

Claims

1. A blower assembly, comprising:

a main housing having an air inlet opening formed therein;

an air inlet housing disposed around said air inlet opening and connected to said main housing, said air inlet housing defining an air inlet channel leading into said air inlet opening in said main housing;

an air outlet channel connected to said main housing and defining an air outlet from said main housing, said air outlet fluidically connected to said air inlet channel;

a fan disposed in said main housing for driving an airflow through said air inlet channel to said air outlet; and

a silencer covering said air inlet housing and directing air into said air inlet channel.

2. The blower assembly according to claim 1, wherein said silencer has a plurality of airflow openings formed therein for directing the air into said air inlet channel.

3. The blower assembly according to claim 2, wherein said silencer has slidable coverings for individually opening and closing said airflow openings for controlling an amount of the airflow into said air inlet channel.

4. The blower assembly according to claim 1, wherein said silencer has a silencer housing surrounding said air inlet housing, said silencer housing being connected to at least one of said air inlet housing or said main housing.

5. The blower assembly according to claim 4, wherein said silencer housing includes a cylindrical lower housing part and a cylindrical upper housing part.

6. The blower assembly according to claim 5, wherein said cylindrical upper housing part has a first diameter being greater than a second diameter of said cylindrical lower housing part.

7. The blower assembly according to claim 6, wherein said silencer housing further has an end cover attached to one end of said cylindrical upper housing part.

8. The blower assembly according to claim 7, further comprising a sound deadening material disposed on an inner wall of said end cover.

9. The blower assembly according to claim 8, wherein said sound deadening material is further disposed on inner cylindrical walls of said cylindrical upper housing part.

10. The blower assembly according to claim 7, wherein said cylindrical upper housing part has a first end supporting said end cover and a second end with a protrusion extending toward an interior of said silencer housing, said protrusion supports an outer surface of said cylindrical lower housing part.

11. The blower assembly according to claim 8, wherein said sound deadening material is a foam material having an egg crate shape.

12. The blower assembly according to claim 5, wherein said air flow openings are only formed in said cylindrical upper housing part.

13. The blower assembly according to claim 5, wherein said cylindrical lower housing part has an outer rim with at least two recesses formed therein for receiving fasteners for attaching said silencer housing to at least one of said air inlet housing or said main housing.

14. A silencer for attaching to a blower assembly, the silencer comprising:

a silencer housing having a lower housing part and an upper housing part with a plurality of airflow openings formed therein for providing an airflow stream into an interior of said silencer housing; and

a noise cancelling material disposed at least in said upper housing part.

15. The silencer according to claim 14, wherein said upper housing part has a circumference and six said airflow openings are disposed around said circumference.

16. The silencer according to claim 15, further comprising slidable coverings for individually opening and closing said airflow openings for controlling an amount of airflow into said interior of said silencer housing.

17. The silencer assembly according to claim 15, wherein:

said lower housing part is a cylindrical lower housing part having a first diameter; and

said upper housing part is a cylindrical upper housing part having a second diameter being greater than said first diameter of said cylindrical lower housing part.

18. The silencer according to claim 17, wherein said silencer housing has an end cover attached to one end of said cylindrical upper housing part.

19. The silencer according to claim 17, wherein said noise canceling material is disposed on an inner cylindrical wall of said cylindrical upper housing part.

20. The silencer according to claim 14, wherein said noise canceling material is a foam material having an egg crate shape.