Filter box assembly for a branched intake system

Patent metadata

Field	Value
Publication number	US-10054086-B2
Application number	US-201514998206-A
Country	US
Kind code	B2
Filing date	Dec 24, 2015
Priority date	Dec 24, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

A filter box assembly for a branched intake system in a vehicle includes an air filter and a filter box housing the air filter. The air filter has a downstream face. The filter box defines an airflow path between a dirty air intake opening and multiple clean air output openings, has a clean air section at the downstream face of the air filter from which each of the clean air output openings open, and includes an interior wall in the clean air section that branches the airflow path to each of the clean air output openings at the downstream face of the air filter.

First claim

What is claimed is:

1. A filter box assembly for a branched intake system in a vehicle, comprising:
an air filter with a downstream face; and
a filter box housing the air filter, the filter box defining an airflow path between a dirty air intake opening and multiple clean air output openings, having a clean air section at the downstream face of the air filter from which each of the clean air output openings open, and including an interior wall in the clean air section that shares a junction with the downstream face of the air filter and branches the airflow path to each of the clean air output openings at the downstream face of the air filter along the junction.

2. The filter box assembly of claim 1 , wherein the interior wall divides the air filter at its downstream face along the junction into multiple sections through which respective branches of the airflow path are uniquely defined.

3. The filter box assembly of claim 1 , wherein the filter box includes multiple mounting structures for air sensors bordering respective of the clean air output openings.

4. The filter box assembly of claim 1 , wherein the filter box has a dirty air section at an upstream face of the air filter opposing the downstream face from which the dirty air intake opening opens.

5. A vehicle, comprising:
an engine; and
an intake system for the engine, the intake system including:
an air filter with a downstream face;
a filter box housing the air filter, the filter box defining an airflow path between a dirty air intake opening and multiple clean air output openings, having a clean air section at the downstream face of the air filter from which each of the clean air output openings open, and including an interior wall in the clean air section that shares a junction with the downstream face of the air filter and branches the airflow path to each of the clean air output openings at the downstream face of the air filter along the junction; and
multiple branches respectively connected to the filter box over each of the clean air output openings.

6. The vehicle of claim 5 , wherein the interior wall divides the air filter at its downstream face along the junction into multiple sections through which respective branches of the airflow path are uniquely defined.

7. The vehicle of claim 5 , wherein the filter box includes multiple mounting structures for air sensors bordering respective of the clean air output openings.

8. The vehicle of claim 5 , wherein the filter box has a dirty air section at an upstream face of the air filter opposing the downstream face from which the dirty air intake opening opens.

9. The vehicle of claim 5 , wherein each branch of the intake system has its own air sensor.

10. The vehicle of claim 5 , wherein each branch of the intake system has its own compressor.

11. The vehicle of claim 5 , wherein each branch of the intake system has its own air sensor and its own compressor.

12. The vehicle of claim 5 , wherein:
the engine has an intake manifold, cylinders arranged in multiple cylinder banks and one or more intake valves associated with each of the cylinders, with the intake manifold having multiple portions each dedicated to supplying air to the intake valves associated with the cylinders included in a respective cylinder bank; and
each branch of the intake system culminates at its own portion of the intake manifold of the engine.

13. The vehicle of claim 12 , wherein each branch of the intake system has its own air sensor.

14. The vehicle of claim 12 , wherein each branch of the intake system has its own compressor.

15. A twin-turbo charged vehicle, comprising:
an engine;
two turbochargers each including a respective of two compressors; and
an intake system for the engine, the intake system including:
an air filter with a downstream face;
a filter box housing the air filter, the filter box defining an airflow path between a dirty air intake opening and two clean air output openings, having a clean air section at the downstream face of the air filter from which each of the two clean air output openings open, and including an interior wall in the clean air section that shares a junction with the downstream face of the air filter and branches the airflow path to each of the two clean air output openings at the downstream face of the air filter along the junction; and
two branches respectively connected to the filter box over each of the two clean air output openings, each of the two branches having a respective of the two compressors, and its own air sensor.

16. The twin-turbo charged vehicle of claim 15 , wherein the interior wall divides the air filter at its downstream face along the junction into two sections through which two respective branches of the airflow path are uniquely defined.

17. The twin-turbo charged vehicle of claim 15 , wherein the filter box includes two mounting structures for the air sensors bordering respective of the two clean air output openings.

18. The twin-turbo charged vehicle of claim 15 , wherein the filter box has a dirty air section at an upstream face of the air filter opposing the downstream face from which the dirty air intake opening opens.

19. The twin-turbo charged vehicle of claim 15 , wherein:
the engine has an intake manifold, cylinders arranged in two cylinder banks and one or more intake valves associated with each of the cylinders, with the intake manifold having two portions each dedicated to supplying air to the intake valves associated with the cylinders included in a respective cylinder bank; and
each of the two branches of the intake system culminates at its own portion of the intake manifold of the engine.

Assignees

• Toyota Eng & Mfg North America

Inventors

• Bursch Eric F

Classifications

• F02M35/10157

  Supercharged engines · CPC title

• F02M35/0207

  on the clean air side · CPC title

• F02M35/021

  Arrangements of air flow meters in or on air cleaner housings · CPC title

• F02B33/00

  Engines characterised by provision of pumps for charging or scavenging · CPC title

• B01D46/0047

  for discharging the filtered gas · CPC title