Air compressor

Patent metadata

Field	Value
Publication number	US-11512692-B2
Application number	US-201916275459-A
Country	US
Kind code	B2
Filing date	Feb 14, 2019
Priority date	Mar 15, 2018
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A wool-like fiber member that has high permeability and low absorbability is disposed around a discharge port of a discharge pipe that is configured to discharge condensate and compressed air stored within a tank.

First claim

What is claimed is:

1. An air compressor, comprising:
a compressor that is configured to compress outside air to produce compressed air;
a storage tank that is configured to store the compressed air;
a condensate discharge section that is configured to selectively discharge condensate and the compressed air from the storage tank to outside the air compressor; and
a fiber member with high permeability; wherein:
the condensate discharge section includes (1) a discharge pipe configured such that the condensate and the compressed air flow from the storage tank through the discharge pipe and (2) a drain cock that is configured to open and close the discharge pipe;
the discharge pipe extends in a front-rear longitudinal direction straight from the drain cock to a discharge port of the discharge pipe;
the fiber member is at least around the discharge port of the discharge pipe; and
the condensate discharge section, the fiber member and a chamber housing the fiber member are configured to directly discharge the condensate from the air compressor through an outer discharge port between the discharge pipe and each of a pair of ribs.

2. The air compressor according to claim 1 , wherein the fiber member is made of metal.

3. The air compressor according to claim 1 , wherein the fiber member surrounds the discharge port.

4. The air compressor according to claim 1 wherein:
the chamber is a muffling chamber that receives the discharge pipe;
the muffling chamber surrounds the discharge port; and

the fiber member is at least partially in an interior of the muffling chamber.

5. The air compressor according to claim 4 , wherein the muffling chamber includes a wall that faces the discharge port.

6. The air compressor according to claim 4 , wherein the muffling chamber is below the storage tank when the air compressor is properly positioned on and supported by a surface.

7. The air compressor according to claim 4 , further comprising:
a second storage tank, wherein:
the discharge pipe is disposed between the storage tank and the second storage tank and extends along a longitudinal direction of the storage tank and the second storage tank; and
the muffling chamber extends along the longitudinal direction of the storage tank and the second storage tank.

8. The air compressor according to claim 1 , wherein the condensate discharge section and fiber member are configured to discharge the condensate from the air compressor before the fiber member is fully saturated with the condensate.

9. The air compressor according to claim 1 , wherein:
the chamber is a muffling chamber that receives the discharge pipe;
the muffling chamber extends along a longitudinal direction in which the storage tank primarily extends; and
the muffling chamber extends beyond a midpoint of the storage tank in the longitudinal direction.

10. An air compressor, comprising:
a compressor that is configured to compress outside air to produce compressed air;
a storage tank that is configured to store the compressed and extends in a front-rear longitudinal direction;
a condensate discharge section that is configured to selectively discharge the compressed air stored in the storage tank and condensate that is generated in the storage tank to outside the air compressor; and
a fiber member with high permeability, wherein:
the condensate discharge section includes:
a discharge pipe that (1) is in a fluid communication with the storage tank and (2) is configured such that the condensate and the compressed air are discharged from the storage tank through the discharge pipe;
a drain cock that is configured to open and close the discharge pipe;
a muffling chamber that (1) receives the discharge pipe, (2) includes, with reference to the longitudinal direction and when the air compressor is properly positioned on and supported by a surface, an upper wall, a rear wall, lateral walls facing each other, and an opening that faces downwards and a pair of opposing ribs, each of the pair of opposing ribs extending inwardly from one of the lateral walls; and
a lower cover that is attached to a downward side of the muffling chamber to cover the opening of the muffling chamber and that is tilted from the rear wall toward a front of the lower cover in the downward direction,
the discharge pipe passes between the pair of ribs;
the fiber member is housed in the muffling chamber such that the fiber member surrounds a discharge port of the discharge pipe; and
the muffling chamber and the lower cover are configured to discharge the condensate from the air compressor through an outer discharge port between the discharge pipe and each of the pair of ribs.

11. The air compressor according to claim 10 , wherein:
a space is present between the discharge pipe and each end of the pair of ribs; and
the lower cover covers an entirety of the opening of the muffling chamber.

12. The air compressor according to claim 10 , wherein:
little clearance is present between the discharge pipe and each end of the pair of ribs; and
the lower cover partially covers the opening of the muffling chamber such that a front end area in the vicinity of the ribs is not covered by the lower cover.

13. The air compressor according to claim 10 , wherein the fiber member is made of metal.

14. The air compressor according to claim 10 , wherein the muffling chamber is below the storage tank.

15. The air compressor according to claim 10 , further comprising
a second storage tank extending in the front-rear longitudinal direction, wherein;
the discharge pipe is between the storage tank and the second storage tank and extends in the front-rear longitudinal direction; and
the muffling chamber extends along the front-rear longitudinal direction.

16. The air compressor according to claim 10 , wherein the compressor includes an adjusting knob configured to adjust a pressure-reducing valve for the storage tank and a joint from which the compressed air is supplied to an air-powered tool via a hose attached thereto.

17. The air compressor according to claim 10 , wherein:
the front-rear longitudinal direction is a direction in which the storage tank primarily extends; and
the muffling chamber extends beyond a midpoint of the storage tank in the longitudinal direction.

Assignees

• Makita Corp

Inventors

• Hachisuka Tomohiro

Classifications

• F04B39/005 Primary

  with direct action on the fluid flow using absorptive materials · CPC title

• F04B41/02

  having reservoirs · CPC title

• F04B39/0061

  using muffler volumes · CPC title

• F04B39/16 Primary

  Filtration; Moisture separation · CPC title

• F04B53/004 Primary

  by mechanical resonators · CPC title