IP Library Granted Patent US 10,584,626
Granted Patent B2
US 10,584,626 · App. 15/972,663 · Granted Mar 10, 2020

Muffler assembly including a center muffler and two satellite mufflers

Inventors: Brett Herwat (Jackson, MI); Keith Bartu (Dexter, MI); Gabriel Ostromecki (Ann Arbor, MI)
Assignee: Tenneco Automotive Operating Company Inc.
F01N13/08B60K13/04F01N1/023F01N13/02F01N13/04F01N2470/14F01N2470/16
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Quick Facts
Patent No.
US 10,584,626
App. No.
15/972,663
Granted
Mar 10, 2020
Kind
B2
Abstract

A muffler assembly includes first, second, and third mufflers. The first muffler includes a first housing and an X-pipe that is at least partially disposed within the first housing. The X-pipe has first and second inlets and first and second outlets that are all fluidly connected to one another. The first and second inlets receive exhaust gas from the engine. The second muffler includes a second housing and a first Y-pipe that is at least partially disposed therein. The first Y-pipe has a third inlet that receives exhaust gas from the first outlet, and third and fourth outlets. The third muffler includes a third housing and a second Y-pipe that is at least partially disposed therein. The second Y-pipe has a fourth inlet that receives exhaust gas from the second outlet, and fifth and sixth outlets. The first, second, and third housings are spaced apart from one another.

Claims (45)

1. A muffler assembly for receiving exhaust gas from an engine of a vehicle adapted to travel along a surface, the muffler assembly comprising:

a first muffler including a first housing and an X-pipe that is at least partially disposed within the first housing, the X-pipe having a first inlet, a first outlet, a second inlet, and a second outlet, the first and second inlets each being adapted to receive exhaust gas from the engine, each of the first and second inlets and first and second outlets being fluidly connected to one another;

a second muffler including a second housing and a first Y-pipe that is at least partially disposed within the second housing, the first Y-pipe having a third inlet that is adapted to receive exhaust gas from the first outlet, said first Y-pipe including a third outlet and a fourth outlet; and

a third muffler including a third housing and a second Y-pipe that is at least partially disposed within the third housing, the second Y-pipe having a fourth inlet that is adapted to receive exhaust gas from the second outlet, said second Y-pipe including a fifth outlet and a sixth outlet, wherein each of the first housing, the second housing, and the third housing are spaced apart from one another wherein the first Y-pipe includes a first neck that extends outwardly from a first main body of the first Y-pipe, the first neck including a first opening that is in direct fluid communication a second cavity of the second housing; and

the second Y-pipe includes a second neck that extends outwardly form a second main body of the second Y-pipe, the second neck including a second opening that is in direct fluid communication with a third cavity of the third housing.

2. The muffler assembly of claim 1 , wherein the X-pipe includes a junction that includes an aperture, the aperture being open to and in direct fluid communication with a first cavity that is defined by the first housing.

3. The muffler assembly of claim 1 , wherein the X-pipe is laterally centered with respect to the vehicle.

4. The muffler assembly of claim 1 , wherein the X-pipe is disposed equidistant between the first Y-pipe and the second Y-pipe.

5. The muffler assembly of claim 1 , wherein the second Y-pipe is a mirror image of the first Y-pipe.

6. A muffler assembly for receiving exhaust gas from an engine of a vehicle adapted to travel along a surface, the muffler assembly comprising:

a first muffler including a first housing and an X-pipe that is at least partially disposed within the first housing, the X-pipe having a first inlet, a first outlet, a second inlet, and a second outlet, the first and second inlets each being adapted to receive exhaust gas from the engine, each of the first and second inlets and first and second outlets being fluidly connected to one another;

a second muffler including a second housing and a first Y-pipe that is at least partially disposed within the second housing, the first Y-pipe having a third inlet that is adapted to receive exhaust gas from the first outlet, said first Y-pipe including a third outlet and a fourth outlet and

a third muffler including a third housing and a second Y-pipe that is at least partially disposed within the third housing, the second Y-pipe having a fourth inlet that is adapted to receive exhaust gas from the second outlet, said second Y-pipe including a fifth outlet and a sixth outlet, wherein each of the first housing, the second housing, and the third housing are spaced apart from one another, wherein:

the X-pipe defines a center plane that extends through the first inlet, the second inlet, the first outlet, and the second outlet; and

the center plane extends perpendicular to a longitudinal axis of the vehicle.

7. The muffler assembly of claim 6 , wherein the first and second inlets are disposed about the first and second outlets with respect to the surface.

8. A muffler assembly for receiving exhaust gas from an engine of a vehicle adapted to travel along a surface, the muffler assembly comprising:

a first muffler including a first housing and an X-pipe that is at least partially disposed within the first housing, the X-pipe having a first inlet, a first outlet, a second inlet, and a second outlet, the first and second inlets each being adapted to receive exhaust gas from the engine, each of the first and second inlets and first and second outlets being fluidly connected to one another;

a second muffler including a second housing and a first Y-pipe that is at least partially disposed within the second housing, the first Y-pipe having a third inlet that is adapted to receive exhaust gas from the first outlet, said first Y-pipe including a third outlet and a fourth outlet;

a third muffler including a third housing and a second Y-pipe that is at least partially disposed within the third housing, the second Y-pipe having a fourth inlet that is adapted to receive exhaust gas from the second outlet, said second Y-pipe including a fifth outlet and a sixth outlet, wherein each of the first housing, the second housing, and the third housing are spaced apart from one another;

a first intermediate pipe extending between the first outlet and the third inlet, the first intermediate pipe being disposed at least partially outside of the first housing and the second housing; and

a second intermediate pipe extending between the second outlet and the fourth inlet, the second intermediate pipe being at least partially disposed outside of the first housing and the third housing.

9. The muffler assembly of claim 8 , wherein the first and second intermediate pipes are each linear and extend parallel to the surface.

10. A muffler assembly for receiving exhaust gas from an engine of a vehicle adapted to travel along a surface, the muffler assembly comprising:

a first muffler including a first housing, a first outlet, and a second outlet, the first housing defining a first cavity;

a second muffler adapted to receive exhaust gas from the first muffler, the second muffler including a second housing and a first Y-pipe, the second housing defining a second cavity into which the first Y-pipe is at least partially disposed, the first Y-pipe including a first neck that extends outwardly from a first main body of the first Y-pipe, the first neck having a first opening that is in direct fluid communication with the second cavity; and

a third muffler adapted to receive exhaust gas from the first muffler, the third muffler including a third housing and a second Y-pipe, the third housing defining a third cavity into which the second Y-pipe is at least partially disposed, the second Y-pipe including a second neck that extends outwardly from a second main body of the second Y-pipe, the second neck having a second opening that is in direct fluid communication with the third cavity.

11. The muffler assembly of claim 10 , wherein:

the first Y-pipe includes a third outlet, a fourth outlet, a first junction, a first pipe portion that extends between the first junction and the third outlet, and a second pipe portion that extends between the first junction and the fourth outlet;

the second Y-pipe includes a fifth outlet, a sixth outlet, a second junction, a third pipe portion that extends between the second junction and the fifth outlet, and a fourth pipe portion that extends between the second junction and the sixth outlet;

the first and third pipe portions define a first length; and

the second and fourth pipe portions define a second length that is greater than the first length.

12. The muffler assembly of claim 11 , wherein the first neck extends from the second pipe portion and the second neck extends from the fourth pipe portion.

13. The muffler assembly of claim 10 , further comprising a first E-valve disposed downstream of the first Y-pipe and a second E-valve disposed downstream of the second Y-pipe.

14. The muffler assembly of claim 13 , wherein the first E-valve is disposed outside of the second housing and the second E-valve is disposed outside of the third housing.

15. The muffler assembly of claim 10 , wherein the first muffler includes a X-pipe including a first inlet, a second inlet, the first outlet, and the second outlet, the first and second inlets and the first and second outlets being fluidly connected to one another, the X-pipe including a junction that includes an aperture, the aperture being open to and in direct fluid communication with the first cavity.

16. The muffler assembly of claim 15 , wherein the aperture opens toward a front of the vehicle.

17. The muffler assembly of claim 15 , wherein:

the first Y-pipe is imperforate except for the first opening;

the second Y-pipe is imperforate except for the second opening; and

the X-pipe is imperforate except for the aperture.

18. A muffler assembly for receiving exhaust gas from an engine of a vehicle adapted to travel along a surface, the muffler assembly comprising:

a first muffler including a first housing defining a first cavity, and an X-pipe that is at least partially disposed within the first cavity, the X-pipe having a first inlet, a first outlet, a second inlet, and a second outlet, the first and second inlets each being adapted to receive exhaust gas from the engine, each of the first and second inlets and first and second outlets being fluidly connected to one another, the X-pipe including a junction that includes an aperture, the aperture being open to and in direct fluid communication with the first cavity;

a second muffler including a second housing defining a second cavity, a third inlet configured to receive exhaust gas from the first outlet, and said second muffler including a third outlet and a fourth outlet; and

a third muffler including a third housing defining a third cavity, a fourth inlet configured to receive exhaust gas from the second outlet, and said third muffler including a fifth outlet, and a sixth outlet wherein the aperture opens toward a front of the vehicle.

Assignments (10)
CHANGE OF NAME Recorded Aug 20, 2025
From: TENNECO AUTOMOTIVE OPERATING COMPANY INC.
To: TENNECO AUTOMOTIVE OPERATING COMPANY LLC
Reel/Frame 072553/0215 →
PATENT SECURITY AGREEMENT (ABL) Recorded Apr 7, 2023
From: TENNECO INC.; DRIV AUTOMOTIVE INC.; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL WORLD WIDE LLC; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 063268/0506 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS (FIRST LIEN) Recorded Nov 22, 2022
From: DRIV AUTOMOTIVE INC.; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL WORLD WIDE LLC; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; TENNECO INC.; THE PULLMAN COMPANY
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 061989/0689 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; TENNECO INTERNATIONAL HOLDING CORP.; THE PULLMAN COMPANY; TENNECO GLOBAL HOLDINGS INC.; CLEVITE INDUSTRIES INC.; TMC TEXAS INC.; CARTER AUTOMOTIVE COMPANY LLC; FEDERAL-MOGUL WORLD WIDE LLC; FELT PRODUCTS MFG. CO. LLC; MUZZY-LYON AUTO PARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL POWERTRAIN IP LLC; FEDERAL-MOGUL PISTON RINGS, LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL CHASSIS LLC; F-M MOTORPARTS TSC LLC; F-M TSC REAL ESTATE HOLDINGS LLC; FEDERAL-MOGUL VALVE TRAIN INTERNATIONAL LLC; FEDERAL-MOGUL SEVIERVILLE, LLC; BECK ARNLEY HOLDINGS LLC; FEDERAL-MOGUL FILTRATION LLC; FEDERAL-MOGUL FINANCING CORPORATION; FEDERAL-MOGUL PRODUCTS US LLC
Reel/Frame 061975/0218 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
Reel/Frame 061975/0031 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
Reel/Frame 061971/0156 →
SECURITY AGREEMENT Recorded Mar 17, 2021
From: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 055626/0065 →
SECURITY AGREEMENT Recorded Dec 1, 2020
From: TENNECO INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 054555/0592 →
CONFIRMATORY GRANT OF SECURITY INTERESTS IN UNITED STATES PATENTS Recorded Oct 9, 2018
From: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; TENNECO INTERNATIONAL HOLDING CORP.; THE PULLMAN COMPANY; TENNECO GLOBAL HOLDINGS INC.; CLEVITE INDUSTRIES INC.; TMC TEXAS INC.; CARTER AUTOMOTIVE COMPANY LLC; FEDERAL-MOGUL WORLD WIDE LLC; FELT PRODUCTS MFG. CO. LLC; MUZZY-LYON AUTO PARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL POWERTRAIN IP LLC; FEDERAL-MOGUL PISTON RINGS, LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL CHASSIS LLC; F-M MOTORPARTS TSC LLC; F-M TSC REAL ESTATE HOLDINGS LLC; FEDERAL-MOGUL VALVETRAIN INTERNATIONAL LLC; FEDERAL-MOGUL SEVIERVILLE, LLC; BECK ARNLEY HOLDINGS LLC; FEDERAL-MOGUL FILTRATION LLC; FEDERAL-MOGUL FINANCING CORPORATION; FEDERAL-MOGUL PRODUCTS US LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 047223/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2018
From: HERWAT, BRETT; BARTU, KEITH; OSTROMECKI, GABRIEL
To: TENNECO AUTOMOTIVE OPERATING COMPANY INC.
Reel/Frame 045900/0769 →
Cited By (2)
US 1,142,088 US 12,404,790