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Variable Sound Exhaust System For A Vehicle
Abstract: The subject matter described herein relates to an exhaust system for an automobile. According to one embodiment, an exhaust system includes a first passage, a second passage and a switching device. The switching device can attain a first position and a second position. In the first position, the gases are discharged to the atmosphere through the first passage, thereby resulting in a reduced sound level. In the second position, the gases are discharged to the atmosphere through the second passage, thereby resulting in a high sound level.
Notices, Deadlines & Correspondence
Patent Information
Applicants
TVS MOTOR COMPANY LIMITED
Inventors
1. BOOBALAN MANI
2. ANANDAKUMAR MALLUVADU SUNDARAMAN
3. HARNE VINAY CHANDRAKANT
Specification
1, An exhaust system (100) for releasing exhaust gases trom an internal combustion
engine of a vehicle to the atmosphere, said exhaust system (100) comprising:
an exhaust pipe (102) connected to said internal combustion engine of said vehicle for intake of exhaust gases from said internal combustion engine;
a muffler (106), connected to said exhaust pipe (102), for releasing exhaust gases from said exhaust pipe (102) to the atmosphere, said mufllcr (106) comprising:
a plurality of expansion chambers (110); and
a plurality of pass-through (112) provided between said expansion chambers (110);
characterized in that,
said expansion chambers (110) and said pass-through (112) providing a plurality of passage for said exhaust gases, said plurality of passage comprising at least:
a first passage providing a tlrst predetermined exhaust sound elTecl; and
a second passage providing a second predetermined exhaust sound effect; and
a switching mechanism for selectively opening said first passage or said second passage.
2. The exhaust system (100) as claimed in claim 1, wherein said pass-through (112) are
pipes of predcfmed diameter.
3. The exhaust system (100) as claimed in claim 1, wherein said pass-through (112) are
holes of predefined diameter.
4. The exhaust system (100) as claimed in claim 1, wherein said expansion chambers
(110) have the same cross-sectional area.
5. The exhaust system (100) as claimed in claim 1, wherein said switching mechanism is
selected from amongst a plunger mechanism (200) or a valve mechanism (300, 400).
6. The exhaust system (100) as claimed in claim 5, wherein said plunger mechanism
(200) comprises a spring loaded plunger (206, 208).
7. fhe exhaust system (100) as claimed in claim 5, wherein said valve mechanism (300,
400) comprises one or more butterfly valves (302, 402, 404).
8. The exhaust system (100) as claimed in claim 1 or claim 5, wherein said switching
mechanism is actuated either mechanically or electrically.
9. fhe exhaust system (TOO) as claimed in claim 1, said system comprising:
an inlet port (104) for intake of exhaust gases from said internal combustion engine, wherein said inlet port (104) is provided on said exhaust pipe (102); and
1, An exhaust system (100) for releasing exhaust gases trom an internal combustion
engine of a vehicle to the atmosphere, said exhaust system (100) comprising:
an exhaust pipe (102) connected to said internal combustion engine of said vehicle for intake of exhaust gases from said internal combustion engine;
a muffler (106), connected to said exhaust pipe (102), for releasing exhaust gases from said exhaust pipe (102) to the atmosphere, said mufllcr (106) comprising:
a plurality of expansion chambers (110); and
a plurality of pass-through (112) provided between said expansion chambers (110);
characterized in that,
said expansion chambers (110) and said pass-through (112) providing a plurality of passage for said exhaust gases, said plurality of passage comprising at least:
a first passage providing a tlrst predetermined exhaust sound elTecl; and
a second passage providing a second predetermined exhaust sound effect; and
a switching mechanism for selectively opening said first passage or said second passage.
2. The exhaust system (100) as claimed in claim 1, wherein said pass-through (112) are
pipes of predcfmed diameter.
3. The exhaust system (100) as claimed in claim 1, wherein said pass-through (112) are
holes of predefined diameter.
4. The exhaust system (100) as claimed in claim 1, wherein said expansion chambers
(110) have the same cross-sectional area.
5. The exhaust system (100) as claimed in claim 1, wherein said switching mechanism is
selected from amongst a plunger mechanism (200) or a valve mechanism (300, 400).
6. The exhaust system (100) as claimed in claim 5, wherein said plunger mechanism
(200) comprises a spring loaded plunger (206, 208).
7. fhe exhaust system (100) as claimed in claim 5, wherein said valve mechanism (300,
400) comprises one or more butterfly valves (302, 402, 404).
8. The exhaust system (100) as claimed in claim 1 or claim 5, wherein said switching
mechanism is actuated either mechanically or electrically.
9. fhe exhaust system (TOO) as claimed in claim 1, said system comprising:
an inlet port (104) for intake of exhaust gases from said internal combustion engine, wherein said inlet port (104) is provided on said exhaust pipe (102); and
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 503-CHE-2008 FORM-18 01-09-2009.pdf | 2009-09-01 |
| 2 | 503-CHE-2008 FORM-3 14-12-2009.pdf | 2009-12-14 |
| 3 | abs 0503-che-2008 abstract.jpg | 2011-09-03 |
| 4 | 503-CHE-2008-PatentCertificate02-01-2018.pdf | 2018-01-02 |
| 4 | 503-che-2008-form 3.pdf | 2011-09-03 |
| 5 | Abstract_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 5 | 503-che-2008-form 1.pdf | 2011-09-03 |
| 6 | Claims_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 6 | 503-che-2008-drawings.pdf | 2011-09-03 |
| 7 | Description_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 7 | 503-che-2008-description(provisional).pdf | 2011-09-03 |
| 8 | 503-che-2008-correspondnece-others.pdf | 2011-09-03 |
| 9 | 503-che-2008-abstract.pdf | 2011-09-03 |
| 11 | 503-che-2008 correspondence others.pdf | 2011-09-03 |
| 12 | 0503-che-2008 form-3.pdf | 2011-09-03 |
| 13 | 0503-che-2008 form-2.pdf | 2011-09-03 |
| 14 | 0503-che-2008 form-1.pdf | 2011-09-03 |
| 15 | 0503-che-2008 drawings.pdf | 2011-09-03 |
| 16 | 0503-che-2008 description(complete).pdf | 2011-09-03 |
| 17 | 0503-che-2008 correspondence-others.pdf | 2011-09-03 |
| 18 | 0503-che-2008 claims.pdf | 2011-09-03 |
| 19 | 0503-che-2008 abstract.pdf | 2011-09-03 |
| 20 | Examination Report Reply Recieved [23-10-2015(online)].pdf | 2015-10-23 |
| 21 | Description(Complete) [23-10-2015(online)].pdf | 2015-10-23 |
| 22 | Correspondence [23-10-2015(online)].pdf | 2015-10-23 |
| 23 | Examination Report Reply Recieved [26-10-2015(online)].pdf | 2015-10-26 |
| 24 | Description(Complete) [26-10-2015(online)].pdf | 2015-10-26 |
| 25 | Correspondence [26-10-2015(online)].pdf | 2015-10-26 |
| 26 | Correspondence [01-04-2016(online)].pdf | 2016-04-01 |
| 27 | Claims [01-04-2016(online)].pdf | 2016-04-01 |
| 28 | 503-CHE-2008_EXAMREPORT.pdf | 2016-07-02 |
| 29 | 503-CHE-2008-OTHERS [13-10-2017(online)].pdf | 2017-10-13 |
| 30 | 503-CHE-2008-FER_SER_REPLY [13-10-2017(online)].pdf | 2017-10-13 |
| 31 | 503-CHE-2008-CORRESPONDENCE [13-10-2017(online)].pdf | 2017-10-13 |
| 32 | 503-CHE-2008-COMPLETE SPECIFICATION [13-10-2017(online)].pdf | 2017-10-13 |
| 33 | 503-CHE-2008-CLAIMS [13-10-2017(online)].pdf | 2017-10-13 |
| 34 | 503-CHE-2008-HearingNoticeLetter.pdf | 2017-11-08 |
| 35 | 503-CHE-2008-FORM-26 [27-11-2017(online)].pdf | 2017-11-27 |
| 36 | 503-CHE-2008-Correspondence to notify the Controller (Mandatory) [27-11-2017(online)].pdf | 2017-11-27 |
| 37 | Correspondence by Agent_Power of Attorney_30-11-2017.pdf | 2017-11-30 |
| 38 | 503-CHE-2008-RELEVANT DOCUMENTS [07-12-2017(online)].pdf | 2017-12-07 |
| 39 | 503-CHE-2008-PETITION UNDER RULE 137 [07-12-2017(online)].pdf | 2017-12-07 |
| 40 | 503-CHE-2008-Written submissions and relevant documents (MANDATORY) [15-12-2017(online)].pdf | 2017-12-15 |
| 41 | 503-CHE-2008-Written submissions and relevant documents (MANDATORY) [18-12-2017(online)].pdf | 2017-12-18 |
| 42 | Marked up Claims_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 43 | Drawings_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 44 | Description_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 45 | Claims_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 46 | Abstract_Granted 291297_02-01-2018.pdf | 2018-01-02 |
| 47 | 503-CHE-2008-PatentCertificate02-01-2018.pdf | 2018-01-02 |
| 48 | 503-CHE-2008-IntimationOfGrant02-01-2018.pdf | 2018-01-02 |
| 49 | Form-27_Statement Of Working_27-03-2018.pdf | 2018-03-27 |
| 50 | Correspondence by Agent_Certified Copy_10-06-2019.pdf | 2019-06-10 |