Compressor housing having sound control chambers

Patent metadata

Field	Value
Publication number	US-10012223-B2
Application number	US-201715822015-A
Country	US
Kind code	B2
Filing date	Nov 24, 2017
Priority date	Sep 13, 2011
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

A compressor assembly having a housing with a number of sound control chambers. A method of controlling a sound level of a compressor assembly having a step of providing a plurality of sound control chambers. A method of controlling a sound level of a compressor assembly having a step of eliminating an operator's line-of-sight view to noise producing components of the compressor assembly. Sound level of a compressor can be controlled by separating the internal volume of a housing which encases at least a portion of a pump assembly to create sound control chambers and/or eliminating an operator's line-of-sight view to noise producing components of the compressor assembly.

First claim

We claim:

1. A compressor assembly, comprising:
a universal motor;
a belt-driven pump assembly having a pump driven by a drive belt driven by the universal motor;
a housing configured to cover at least in part each of an air ducting shroud, a conduit and a belt-driven pump assembly;
a fan configured to provide a cooling air; and
a noise level which is 75 dBA or less when the compressor is in a compressing state;
wherein said air ducting shroud surrounds at least a portion of the universal motor and is configured to feed a first portion of said cooling air to cool at least a portion of said universal motor; and
wherein said conduit is configured to feed a second portion of said cooling air to cool at least a portion of said belt-driven pump assembly.

2. A compressor assembly according to claim 1 , wherein said air ducting shroud feeds said cooling air to said conduit.

3. A compressor assembly according to claim 1 , wherein said fan is driven by said universal motor.

4. The compressor assembly according to claim 1 , wherein said fan is surrounded at least in part by said air ducting shroud.

5. The compressor assembly according to claim 1 , wherein said fan is mounted on a motor shaft of said universal motor.

6. The compressor assembly according to claim 1 , further comprising:
a shroud inlet scoop that guides cooling air from an air inlet to the fan.

7. The compressor assembly according to claim 1 , further comprising:
a fan cover and a plurality of inlet ports,
wherein said fan cover and said plurality of inlet ports are configured to block a compressor assembly operator's line-of-sight view to the fan when the compressor assembly is in a compressing state.

8. The compressor assembly according to claim 1 , further comprising:
an exhaust sound control chamber configured to receive and exhaust cooling air that has passed through the air ducting shroud.

9. The compressor assembly according to claim 1 , further comprising:
an exhaust sound control chamber configured to receive an exhaust cooling air that has passed through the conduit.

10. The compressor assembly according to claim 1 , further comprising:
a muffler; and
wherein a feed air flows through the muffler prior to being fed to the belt-driven pump assembly.

11. A compressor assembly, comprising:
a universal motor;
a belt-driven pump assembly having a pump driven by a drive belt driven by the universal motor;
a fan configured to provide cooling air to at least a portion of each of said universal motor and said belt-driven pump assembly;
a housing that covers at least a portion of each of said motor and said belt-driven pump assembly;
a sound control chamber at least in part containing said belt-driven pump assembly, said sound control chamber contained at least in part by said housing;
a fan chamber at least in part containing said fan, said fan chamber contained at least in part by said housing; and
a noise level which is 75 dBA or less when the compressor assembly is in a compressing state.

12. A compressor assembly according to claim 11 , further comprising:
an exhaust sound control chamber configured to receive a exhaust cooling air that has cooled at least one of the universal motor and belt-driven pump assembly.

13. A compressor assembly according to claim 11 , further comprising:
at least one chamber having a dead air.

14. A compressor assembly according to claim 11 , further comprising:
at least one sound control chamber having a trapped air space.

15. A compressor assembly according to claim 11 , further comprising:
an air ducting shroud surrounding at least a portion of said universal motor.

16. A compressor assembly according to claim 11 , further comprising:
a cooling air flow path guiding said cooling air through at least a portion of the fan chamber and at least a portion of a pump sound control chamber, said cooling air flow path configured to cool the universal motor and the belt-driven pump assembly.

17. A compressor assembly according to claim 11 , further comprising:
an air ducting shroud at least in part present in the fan chamber and at least in part present in the pump sound control chamber.

18. A compressor assembly according to claim 11 , further comprising:
a partition configured between the fan chamber and pump sound control chamber.

19. A compressor assembly according to claim 11 , further comprising:
a noise absorber configured adjacent to a partition of the sound control chamber.

Assignees

• Black & Decker Inc

Inventors

• White Gary D
• Vos Stephen J
• Wilson Christina

Classifications

• F04D29/668

  damping or preventing mechanical vibrations · CPC title

• F04B35/04

  the means being electric · CPC title

• F04B39/0061

  using muffler volumes · CPC title

• F04B41/02

  having reservoirs · CPC title

• F04B39/121

  Casings · CPC title