Screen assembly for construction vehicle

Patent metadata

Field	Value
Publication number	US-2021394591-A1
Application number	US-202016907479-A
Country	US
Kind code	A1
Filing date	Jun 22, 2020
Priority date	Jun 22, 2020
Publication date	Dec 23, 2021
Grant date	—

Abstract

A screen assembly adapted to be removably coupled to an air filter of a construction vehicle includes a frame member including a first portion and a second portion. The screen assembly includes a screen member coupled to the frame member such that a hollow space is defined by the screen member and the frame member. The screen member includes a plurality of perforations adapted to allow passage of air therethrough. The plurality of perforations are further adapted to restrict an ingress of debris into the hollow space of the screen assembly

First claim

What is claimed is:

1 . A screen assembly adapted to be removably coupled to an air filter of a construction vehicle, the screen assembly comprising:
a frame member including a first portion and a second portion; and a screen member coupled to the frame member such that a hollow space is defined by the screen member and the frame member, wherein the screen member includes a plurality of perforations adapted to allow passage of air therethrough, and wherein the plurality of perforations are further adapted to restrict an ingress of debris into the hollow space of the screen assembly.

2 . The screen assembly of claim 1 , wherein the screen assembly is adapted to be coupled to the air filter such that the first portion of the frame member is disposed proximate an inlet portion of the air filter.

3 . The screen assembly of claim 2 , wherein the first portion defines an opening that provides fluid communication between the inlet portion of the air filter and the hollow space of the screen assembly.

4 . The screen assembly of claim 1 , wherein the second portion is substantially perpendicular to the first portion and substantially parallel to a central axis defined by the air filter.

5 . The screen assembly of claim 1 , wherein the frame member further includes a third portion that is substantially parallel to the first portion, and wherein a portion of the screen member extends between the first portion and the third portion.

6 . The screen assembly of claim 1 , wherein the frame member is adapted to be removably coupled to a housing of the air filter by a plurality of mechanical fasteners.

7 . The screen assembly of claim 1 , wherein the screen member is made of stainless steel.

8 . The screen assembly of claim 1 , wherein each of the plurality of perforations have a diameter in a range of about 0.5 millimeter (mm) to about 2 mm.

9 . The screen assembly of claim 1 , wherein the debris includes at least one of ember and wood particles.

10 . The screen assembly of claim 1 , wherein the screen assembly and the air filter are positioned proximate a rear end of an operator cabin of the construction vehicle.

11 . A construction vehicle comprising:
a frame; an operator cabin supported by the frame; and an air filter assembly adapted to be coupled proximate the operator cabin, the air filter assembly including:
an air filter defining a central axis, wherein the air filter includes an inlet portion; and
a screen assembly adapted to be removably coupled to the air filter, the screen assembly including:
a frame member including a first portion and a second portion; and
a screen member coupled to the frame member such that a hollow space is defined by the screen member and the frame member, wherein the screen member includes a plurality of perforations adapted to allow passage of air therethrough, and wherein the plurality of perforations are further adapted to restrict an ingress of debris into the hollow space of the screen assembly.

12 . The construction vehicle of claim 11 , wherein the screen assembly is adapted to be coupled to the air filter such that the first portion of the frame member is disposed proximate the inlet portion of the air filter.

13 . The construction vehicle of claim 12 , wherein the first portion defines an opening that provides fluid communication between the inlet portion of the air filter and the hollow space of the screen assembly.

14 . The construction vehicle of claim 11 , wherein the second portion is substantially perpendicular to the first portion and substantially parallel to a central axis defined by the air filter.

15 . The construction vehicle of claim 11 , wherein the frame member further includes a third portion that is substantially parallel to the first portion, and wherein a portion of the screen member extends between the first portion and the third portion.

16 . The construction vehicle of claim 11 , wherein the frame member is adapted to be removably coupled to a housing of the air filter by a plurality of mechanical fasteners.

17 . The construction vehicle of claim 11 , wherein the screen member is made of stainless steel.

18 . The construction vehicle of claim 11 , wherein each of the plurality of perforations have a diameter in a range of about 0.5 mm to about 2 mm.

19 . The construction vehicle of claim 11 , wherein the debris includes at least one of ember and wood particles.

20 . The construction vehicle of claim 11 , wherein the screen assembly and the air filter are positioned proximate a rear end of the operator cabin of the construction vehicle.

Assignees

• Caterpillar Inc

Inventors

• Hausauer Ryan Barry
• Davis Randall E

Classifications

• B60H3/0608

  Filter arrangements in the air stream · CPC title

• B60H3/0658 Primary

  Filter elements specially adapted for their arrangement in vehicles (B60H3/0608 takes precedence) · CPC title

• B62D33/0617

  for tractors or off-the-road vehicles (protective devices for drivers in case of overturning of tractors B60R21/131) · CPC title

• B01D46/645

  Protecting screens at filter inlet or outlet · CPC title

• B60H2003/065

  Details for holding filter elements in position · CPC title