Particulate separator

Patent metadata

Field	Value
Publication number	US-9586164-B2
Application number	US-201414451821-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Aug 5, 2014
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A particulate separator for a gaseous fluid is provided. The particulate separator includes a sealable collection container defining a collection volume therein. The particulate separator also includes a gaseous fluid conduit provided through the sealable collection container. The gaseous fluid conduit defines an inner channel therein. The gaseous fluid conduit includes an inlet and an outlet. The gaseous fluid conduit also includes an arcuate segment provided between the inlet and the outlet. The arcuate segment includes a plurality of slits formed therein. The plurality of slits is configured to provide fluid communication between the collection volume and the inner channel of the gaseous fluid conduit.

First claim

What is claimed is:

1. A particulate separator for a gaseous fluid, the particulate separator comprising:
a sealable collection container defining a collection volume therein, the sealable collection container including
a cap member composing a top portion of the sealable collection container, and
a base chamber coupled to the cap member, a direction from the cap member toward the base chamber defining a downward direction of the particulate separator; and

a gaseous fluid conduit disposed through the cap member, a wall of the gaseous fluid conduit defining an inner channel therein, the gaseous fluid conduit comprising an inlet, an outlet, and an arcuate segment disposed fluidly in series between the inlet and the outlet,
the wall of the arcuate segment defining a plurality of slits formed therethrough, the plurality of slits providing fluid communication between the collection volume and the inner channel, the plurality of slits at least partly facing the downward direction, wherein an outward radial direction of the arcuate segment is defined by a direction extending from a center of a radius of curvature of the arcuate segment toward the arcuate segment, and wherein the plurality of slits are provided along an outer periphery of the arcuate segment, such that the plurality of slits at least partly face the outward radial direction.

2. The particulate separator of claim 1 , wherein the arcuate segment defines a bend of 90 degrees between the inlet and the outlet.

3. The particulate separator of claim 1 , wherein the wall of the gaseous fluid conduit has a thickness along a portion of the gaseous fluid conduit defining each slit of the plurality of slits, and
wherein the thickness decreases in a flow direction through the gaseous fluid conduit that extends from the inlet toward the outlet.

4. The particulate separator of claim 1 , wherein each slit of the plurality of slits has at least one of a circular shape and a rectangular shape.

5. The particulate separator of claim 1 , wherein at least a portion of the inlet and the outlet is attached to a wall of the cap member.

6. The particulate separator of claim 1 , wherein the gaseous fluid conduit is a tube.

7. The particulate separator of claim 1 , wherein each slit of the plurality of slits has a triangular shape.

8. The particulate separator of claim 7 , wherein each slit of the plurality of slits extends circumferentially about the arcuate segment from an inner periphery of the arcuate segment to an outer periphery of the arcuate segment,
an axial dimension of each slit, along an axial direction, at the outer periphery is larger than an axial dimension of each slit, along the axial direction, at the inner periphery, and
the axial direction extends along a flow direction through the gaseous fuel conduit from the inlet toward the outlet.

9. A gaseous fuel system comprising:
a gaseous fuel source;
a gaseous fuel rail; and
a particulate separator in fluid communication with the gaseous fuel source and the gaseous fuel rail, the particulate separator comprising
a sealable collection container defining a collection volume therein, the sealable collection container including
a cap member composing a top portion of the sealable collection container, and
a base chamber coupled to the cap member, a direction from the cap member toward the base chamber defining a downward direction of the particulate separator; and

a gaseous fuel conduit disposed through the cap member, a wall of the gaseous fuel conduit defining an inner channel therein, the gaseous fuel conduit comprising an inlet, an outlet, and an arcuate segment disposed fluidly in series between the inlet and the outlet,
the wall of the arcuate segment defining a plurality of slits formed therethrough, the plurality of slits providing fluid communication between the collection volume and the inner channel, the plurality of slits at least partly facing the downward direction, wherein an outward radial direction of the arcuate segment is defined by a direction extending from a center of a radius of curvature of the arcuate segment toward the arcuate segment, and wherein the plurality of slits are provided along an outer periphery of the arcuate segment, such that the plurality of slits at least partly face the outward radial direction.

10. The gaseous fuel system of claim 9 , wherein the arcuate segment defines a bend of 90 degrees between the inlet and the outlet.

11. The gaseous fuel system of claim 9 , wherein the wall of the gaseous fuel conduit has a thickness along a portion of the gaseous fuel conduit defining each slit of the plurality of slits, and
wherein the thickness decreases in a flow direction through the gaseous fluid conduit that extends from the inlet toward the outlet.

12. The gaseous fuel system of claim 9 , wherein each slit of the plurality of slits has at least one of a circular shape and a rectangular shape.

13. The gaseous fuel system of claim 9 , wherein each slit of the plurality of slits has a triangular shape.

14. The gaseous fuel system of claim 13 , wherein each slit of the plurality of slits extends circumferentially about the arcuate segment from an inner periphery of the arcuate segment to an outer periphery of the arcuate segment,
an axial dimension of each slit, along an axial direction, at the outer periphery is larger than an axial dimension of each slit, along the axial direction, at the inner periphery, and
the axial direction extends along a flow direction through the gaseous fuel conduit from the inlet toward the outlet.

15. An engine system comprising:
a fuel injector;
a gaseous fuel source;
a gaseous fuel rail; and
a particulate separator in fluid communication with the gaseous fuel source and the gaseous fuel rail, the particulate separator comprising
a sealable collection container defining a collection volume therein, the sealable collection container including
a cap member composing a top portion of the sealable collection container, and
a base chamber coupled to the cap member, a direction from the cap member toward the base chamber defining a downward direction of the particulate separator; and

a gaseous fuel conduit disposed through the cap member, a wall of the gaseous fuel conduit defining an inner channel therein, the gaseous fuel conduit comprising an inlet, an outlet, and an arcuate segment disposed fluidly in series between the inlet and the outlet,
the wall of the arcuate segment defining a plurality of slits formed therethrough, the plurality of slits providing fluid communication between the collection volume and the inner channel, the plurality of slits at least partly facing the downward direction, wherein an outward radial direction of the arcuate segment is defined by a direction extending from a center of a radius of curvature of the arcuate segment toward the arcuate segment, and wherein the plurality of slits are provided along an outer periphery of the arcuate segment, such that the plurality of slits at least partly face the outward radial direction.

Assignees

• Caterpillar Inc

Inventors

• Kim Hoisan

Classifications

• B04C2009/002

  with external filters · CPC title

• B01D45/16 Primary

  generated by the winding course of the gas stream {, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes} · CPC title

• B01D19/0057

  the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet · CPC title

• B01D53/24

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

• B01D17/0217

  by centrifugal force · CPC title