IP Library Granted Patent US 9,109,482
Granted Patent B2
US 9,109,482 · App. 13/660,380 · Granted Aug 18, 2015

Front end exhaust system

Inventors: Thomas Fritz (Ann Arbor, MI); Calvin Lee (Novi, MI); Billy Tally (Dove Canyon, CA)
F01N1/02
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Quick Facts
Patent No.
US 9,109,482
App. No.
13/660,380
Granted
Aug 18, 2015
Kind
B2
Abstract

An exhaust system for a hybrid electric vehicle includes an exhaust pipe. The exhaust pipe includes a first channel having a first end coupled to an engine of the vehicle and a second end that splits into a second and third channel. The second and third channels extend outwardly to a first front side and to a second front side of the vehicle.

Claims (16)

1. An exhaust system for a vehicle with an internal combustion engine installed in a front engine bay of the vehicle, the exhaust system comprising:

an inlet pipe having one end connected to an exhaust port of the internal combustion engine and a second end;

a resonator including an enclosed muffler chamber having an interior volume;

wherein the system is configured so that exhaust gas enters the resonator through the second end of the inlet pipe and exits the resonator through a first connection pipe and a second connection pipe;

wherein the first connection pipe is arranged in the interior volume of the enclosed muffler chamber, the first connection pipe in communication with the second end of the inlet pipe so that at least a portion of the exhaust gas exiting the resonator through the first connection pipe does not enter the interior volume of the enclosed muffler chamber;

wherein the second connection pipe is arranged in the interior volume of the enclosed muffler chamber, the second connection pipe in communication with the second end of the inlet pipe so that at least a portion of the exhaust gas exiting the resonator through the second connection pipe does not enter the interior volume of the enclosed muffler chamber;

a neck pipe having a bend arranged in the interior volume of the enclosed muffler chamber, the neck pipe having a first end in communication with the inlet pipe, the neck pipe having a second end in communication with the interior volume of the enclosed muffler chamber;

a first side muffler in communication with the second end of the first connection pipe; and

a second side muffler in communication with the second end of the second connection pipe.

2. The exhaust system of claim 1 , wherein the vehicle is a hybrid vehicle.

3. An exhaust system for a hybrid electric vehicle having a pair of front wheels and a pair of rear wheels, the exhaust system comprising:

an exhaust pipe including a first channel having a first end coupled to an engine of the vehicle and second end that splits into a second channel that extends outwardly therefrom to a first front side of the vehicle and a third channel that extends outwardly therefrom to a second front side of the vehicle;

a first intermediate exhaust pipe having a proximate end coupled to the second channel and a distal end having a first muffler coupled thereto and a second intermediate exhaust pipe having a proximate end coupled to the third channel and a distal end having a second muffler coupled thereto, wherein the first muffler is coupled to the first front side of the vehicle and the second muffler is coupled to the second front side of the vehicle;

a first outlet pipe coupled to the first muffler and a second outlet pipe coupled to the second muffler; and

at least one heat shield mounted to the exhaust system that deflects heat away from the vehicle thereby protecting the vehicle from heat damage;

wherein the exhaust system is completely contained within a front end of the vehicle and in front of a passenger compartment of the vehicle such that the first and second outlet pipes expel exhaust to the first and second front sides of the front end of the vehicle at locations rearward of the front wheels and forward of a passenger compartment access door; wherein the exhaust pipe is substantially Y-shaped.

Assignments (4)
CHANGE OF NAME Recorded Sep 30, 2015
From: FISKER AUTOMOTIVE AND TECHNOLOGY GROUP LLC
To: KARMA AUTOMOTIVE LLC
Reel/Frame 036732/0358 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 24, 2014
From: FRITZ, THOMAS; LEE, CALVIN; TALLY, BILLY
To: FISKER AUTOMOTIVE AND TECHNOLOGY GROUP, LLC
Reel/Frame 034254/0171 →
CHANGE OF NAME Recorded Aug 17, 2014
From: WX AUTOMOTIVE ACQUISITION COMPANY LLC
To: FISKER AUTOMOTIVE AND TECHNOLOGY GROUP LLC
Reel/Frame 033551/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2014
From: FISKER AUTOMOTIVE, INC.; FISKER AUTOMOTIVE HOLDINGS, INC.
To: WX AUTOMOTIVE ACQUISITION COMPANY LLC
Reel/Frame 033539/0414 →
Continuity (3)
Continuation In Part PCTUS2011034573 · Apr 29, 2011
Provisional Application 61329208 · Apr 29, 2010
Related Publication 20130146391A1 · Jun 13, 2013