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An Exhaust System For A Single Cylinder Engine

Abstract: An exhaust system (200) for a single cylinder engine (106) comprising an exhaust pipe (108) connected to an exhaust port (408), and one or more catalytic converter (205) configured to process unprocessed exhaust gasses (401) emitted from the single cylinder engine (106) of a vehicle (100). The exhaust pipe (108) includes a primary exhaust path (204a) and a secondary exhaust path (204b), wherein the (204a) and a secondary exhaust path (204b) are connected with each other. At least one oxygen detector (202, 203) is positioned within each one of the primary exhaust path (204a) and a secondary exhaust path (204b).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
01 April 2024
Publication Number
40/2025
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application

Applicants

TVS Motor Company Limited
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai.

Inventors

1. Bharaniram Senthilkumar
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
2. Nithin Madhav
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
3. Ritika
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
4. Vasundhara Singh Gautam
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006

Specification

DESC:TECHNICAL FIELD
[001] The present subject matter relates to an exhaust system, more particularly, an exhaust system for a single cylinder engine.
BACKGROUND
[002] In general, a vehicle is driven by an internal combustion engine and the vehicle is provided with an exhaust system which eliminates exhaust gases from a muffler of the exhaust system to an external environment.
[003] In conventional design, for a vehicle having a single cylinder engine, the exhaust system comprising an exhaust pipe which extends from a combustion chamber of the engine to the muffler of the exhaust system. The exhaust gases including unburnt fuel and toxic gases flows through the exhaust pipe and releases to the external environment.
[004] In general, a catalytic converter (CATCON) is disposed on the exhaust pipe for purification of the exhaust gases and thereby reduce emission of toxic exhaust gases to the environment. However, a significant challenge arises concerning the assessment of the catalytic converter's operational status and efficiency, as there lacks a reliable feedback mechanism for the rider. Determining whether the catalytic converter is functioning optimally is crucial, and the absence of a system to alert the user about the exhaust quality or potential deterioration beyond predefined limits poses a significant issue. Thereby the central issue lies in the lack of a robust feedback system for riders to assess the operational status and efficiency of the catalytic converter. It is imperative to establish a reliable mechanism that not only informs the user about the exhaust quality but also alerts them if the CATCON's performance falls below predefined standards.
[005] Understanding the exhaust quality of a vehicle holds paramount importance due to its direct influence on various facets such as the rider's experience, overall performance, efficiency, and environmental impact. Firstly, environmental impact is a significant concern, particularly regarding emission regulations compliance. The exhaust quality provides crucial insights into a vehicle's adherence to emission standards, facilitated by modern catalytic converters aimed at reducing harmful emissions, thus contributing to lower overall emissions. Secondly, monitoring exhaust quality is essential for optimizing vehicle performance by indicating the combustion efficiency within the engine. Issues such as incomplete combustion or inefficient fuel utilization can be identified, impacting overall engine functionality. Moreover, exhaust quality assessment offers valuable information regarding fuel efficiency by gauging the combustion process, enabling riders to make informed decisions to minimize fuel consumption. Early detection of issues is another benefit, as regular assessment of exhaust quality allows for timely maintenance to prevent more extensive damage. Additionally, being informed about exhaust quality aids in minimizing exposure to harmful pollutants, promoting better air quality and improved health for riders and those in the vicinity. Furthermore, proactive maintenance facilitated by early issue detection supports cost-effective preventive measures, reducing the likelihood of major repairs and associated expenses. Moreover, awareness of exhaust quality ensures compliance with regulatory inspections in regions where emissions are subject to scrutiny, thus avoiding fines or restrictions on road use. Lastly, understanding exhaust quality encourages eco-friendly driving practices, contributing to sustainability efforts and fostering environmentally conscious transportation approaches.
[006] Presently, the absence of a feedback mechanism leaves riders uninformed about the quality of the exhaust. Moreover, the overarching problem centers around the ambiguity in diagnosing issues, whether they originate from the catalytic converter, or other components within the system. Clarity in pinpointing the source of the problem is vital for efficient and targeted maintenance, reducing unnecessary costs, and ensuring optimal vehicle performance. Addressing this issue requires a comprehensive approach to enhance the diagnostic capabilities and user feedback mechanisms associated with the catalytic converter system.
[007] Hence, it is preferred to design an exhaust system of the vehicle capable of alerting about health status of the catalytic converter with accuracy.
[008] In addition to the existing challenges related to the assessment of catalytic converter efficiency and the lack of a reliable feedback mechanism, several other issues plague current exhaust systems in vehicles. One such problem is the limited ability to detect and address potential malfunctions or inefficiencies within the exhaust system promptly. Without real-time monitoring and diagnostic capabilities, minor issues can escalate into major problems, leading to costly repairs and downtime for the vehicle.
[009] Moreover, the current reliance on manual inspections and periodic maintenance intervals for exhaust systems can be inefficient and costly. A more proactive and predictive approach to maintenance, enabled by advanced monitoring and diagnostic technologies, could help optimize vehicle uptime and reduce overall maintenance costs. Addressing these additional challenges requires a comprehensive redesign of exhaust systems that incorporates advanced monitoring, diagnostic, and feedback mechanisms. By providing riders with real-time insights into the health and performance of their exhaust systems, as well as actionable recommendations for maintenance and driving behavior, manufacturers can enhance overall vehicle reliability, efficiency, and compliance with environmental regulations.
SUMMARY
[010] The present subject matter provides an exhaust system of a vehicle having a feedback mechanism system which can diagnose the health status of the catalytic converter and intimate the health status on the vehicle or to a communication device.
[011] In an embodiment of the present invention, a vehicle is equipped with several components, including a power unit, for example a single cylinder engine with a combustion chamber, a single exhaust pipe connected to a single discharge port exposed to the atmosphere, one or more catalytic converters disposed within the single exhaust pipe, and at least two oxygen sensors. The single exhaust pipe facilitates the flow of exhaust gases from the combustion chamber to the single discharge port. The one or more catalytic converter(s) are responsible for purifying the exhaust gases emitted from the combustion chamber as they travel along the exhaust path extending from the combustion chamber to the discharge port.
[012] As per aspect of the present claimed invention, the single exhaust pipe comprises a primary exhaust path and a secondary exhaust path. The primary exhaust path is of a predetermined diameter, which is larger than the diameter of the secondary exhaust path. For instance, the diameter of the secondary exhaust path is substantially smaller, ranging from 20 to 50 times less than that of the primary exhaust path. The primary exhaust path receives the unprocessed exhaust gases from the vehicle's power unit and houses both a primary oxygen detector and one or more catalytic converters. Upon entering the primary exhaust path, the unprocessed gases enter the one or more catalytic converter(s), where they undergo oxidation and reduction reactions, converting unburnt hydrocarbons into carbon dioxide and water, carbon monoxide into carbon dioxide, and reducing nitrogen dioxide and nitric oxide into nitrogen and oxygen. Positioned within the primary exhaust path between the single cylinder engine and the one or more catalytic converter(s), the primary oxygen detector monitors the oxygen content of the unprocessed exhaust gases.
[013] Once the exhaust gases are treated within the catalytic converter(s), they exit the system and are released into the environment through the exhaust port. Additionally, a secondary exhaust path, separate from the primary exhaust path, and is linked to the primary exhaust path beyond the catalytic converter(s) and before the exhaust port. Here, a portion of the processed exhaust gases is diverted into the secondary exhaust path. A secondary oxygen detector is strategically placed within the secondary exhaust path to monitor the oxygen content of these processed gases.
[014] After detection the portion of the processed exhaust gas within the secondary exhaust path is released back into the primary exhaust path, just before the one or more catalytic converter.
[015] As per Bernoulli’s principle, when the diameter of a pipe decreases (for example, in the secondary exhaust path compared to the primary path), the fluid speed increases. According to Bernoulli's principle, this increase in fluid speed is accompanied by a decrease in pressure. Therefore, in a smaller volume (or diameter), where fluid speed increases, pressure tends to decrease, Conversely, in a larger volume (or diameter), where fluid speed decreases (such as in the primary exhaust path), pressure tends to increase. This principle helps to maintain the unidirectional flow of exhaust gases from areas of higher pressure to areas of lower pressure, minimizing the likelihood of flow back from the secondary exhaust path to the primary exhaust path. Thereby, the primary exhaust path typically operates at higher pressure compared to the secondary exhaust path. This pressure gradient ensures that the flow of exhaust gases remains primarily unidirectional, moving from the single cylinder engine towards the primary exhaust path, and the primary exhaust path to the secondary exhaust path. As a result, there is minimal likelihood of exhaust gases flowing backward from the secondary exhaust path to the primary exhaust path. The present configuration ensures that any diverted gases are thoroughly monitored and re-integrated into the primary exhaust path without disruption to the overall flow pattern.
[016] Both the primary oxygen detector and the secondary oxygen detector are further in communication with a controller of a vehicle, which reads and compares the data provided by both the oxygen sensors.
[017] Furthermore, the division of the exhaust path into primary and secondary sections serves multiple purposes. Firstly, it allows for more precise monitoring and control of the exhaust gas composition and quality. By integrating a primary oxygen detector within the primary exhaust path, immediate feedback on the oxygen content of the unprocessed exhaust gases can be obtained, enabling real-time adjustments to fuel-air mixture ratios and combustion processes for optimal efficiency and emission control.
[018] The controller is configured to compare the detected oxygen content information provided by both the primary and secondary oxygen detectors and assess the health of the one or more catalytic converter. Discrepancies or deviations between the oxygen levels detected by the two sensors can indicate potential issues with the catalytic converter(s). For example, if the oxygen content measured by the primary detector remains high while the secondary detector indicates a significant reduction in oxygen levels, it may suggest that the one or more catalytic converter(s) is effectively converting the exhaust gases, indicating good health condition of the catalytic converter. Similarly, if the oxygen content measured by the primary detector remains high and the secondary detector also indicates a significant high content of oxygen levels, it may indicate potential deterioration or malfunction of the one or more catalytic converter.
[019] Additionally, the controller can analyze the rate of change in oxygen content detected by both sensors over time. Sudden or significant fluctuations in oxygen levels could signal abrupt changes in catalytic converter efficiency or performance, prompting the controller to trigger alerts or diagnostic routines for further investigation.
[020] By integrating data from both the primary and secondary oxygen detectors, the controller can effectively assess the health status of the catalytic converter(s) and provide timely feedback or alerts to the vehicle operator via the dashboard display or communication device. This proactive monitoring and diagnostic capability help ensure optimal performance and longevity of the catalytic converter(s), ultimately contributing to reduced emissions and improved overall vehicle efficiency.
[021] As per another embodiment, a catalytic converter health indicator is provided on the display panel of the vehicle. The catalytic converter health indicator is configured to display a green colour after turning ON of a vehicle ignition, and the green colour indicates the one or more catalytic converter is of good health.
[022] As per another embodiment, the catalytic converter health indicator is configured to display a yellow colour after turning ON of a vehicle ignition, and the yellow colour indicating the one or more catalytic converter is of intermediate health.
[023] As per another embodiment, the catalytic converter health indicator is configured to display a red colour after turning ON of a vehicle ignition, and the red colour indicating the one or more catalytic converter is of poor health.
[024] As per an embodiment, the failsafe unit communicating with the communication unit to display message on one of a display unit of vehicle, and a connected device for immediate action for servicing the smart sensor assembly. The display being one of an audio or visual output provided to a user.
[025] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPT ION OF THE DRAWINGS
[026] The present invention is described with reference to figures. This invention is implementable in two-wheeled vehicles. The same numbers are used throughout the drawings to reference features and components. Further, the inventive features of the invention are outlined in the appended claims.
[027] Figure 1a illustrates a right-side view of a vehicle, in accordance with an embodiment of the present subject matter.
[028] Figure 1b illustrates a top view of the vehicle, in accordance with an embodiment of the present subject matter.
[029] Figure 2a and Figure 2b illustrate a front view of a single cylinder engine’s exhaust system of the vehicle, in accordance with an embodiment of the present subject matter.
[030] Figure 3 illustrates a block diagram showing the oxidation and reduction reaction going on within the exhaust system, in accordance with an embodiment of the present subject matter.
[031] Figure 4 illustrates a block diagram showing the working of the single cylinder’s exhaust system for determining health of the exhaust system, in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION OF THE DRAWINGS
[032] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope being indicated by the following claims.
[033] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate the principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[034] The foregoing disclosure is not intended to limit the present disclosure to the precise forms or particular fields of use disclosed. As such, it is contemplated that various alternate embodiments and/or modifications to the present disclosure, whether explicitly described or implied herein, are possible in light of the disclosure. Having thus described embodiments of the present disclosure, a person of ordinary skill in the art will recognize that changes may be made in form and detail without departing from the scope of the present disclosure. Thus, the present disclosure is limited only by the claims.
[035] Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “third”, “primary”, “secondary”, “main” or any other ordinary and/or numerical terms, should also be taken only as identifiers, to assist the reader's understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation and/or modification relative to, or over, another element, embodiment, variation and/or modification.
[036] Hence it is an object of the present invention to provide an exhaust system of the vehicle capable of alerting about health status of the catalytic converter and also to overcome other related problems known in the art as explained in the background problem.
[037] It is also an object of the present invention to provide an alert intimation mechanism to alert users and customers regarding the health of the catalytic converter of the vehicle.
[038] It is also an object of the present invention to reduce service time and provide ease of maneuverability of the vehicle and also prevent accidental stoppage of the vehicle.
[039] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[040] Figure 1a illustrates a right-side view of a vehicle (100), in accordance with an embodiment of the present subject matter. Figure 1b illustrates a top view of the vehicle (100), in accordance with an embodiment of the present subject matter. Figure 2a and Figure 2b illustrate a front view of an exhaust system (200) of the vehicle (100), in accordance with an embodiment of the present subject matter. For brevity, figures 1a, 1b, 2a, and 2b shall be discussed together. A vehicle (100) comprising a frame assembly (not shown) acting as a skeletal structure of the vehicle (100). The vehicle (100) is a two wheeled, three wheeled or a multi wheeled vehicle. In one embodiment, the vehicle (100) comprising a headlamp assembly (102) disposed in a front portion of the vehicle (100) when viewed along a longitudinal axis of the vehicle (100). The vehicle (100) is provided with a seat assembly (104) in a rear portion of the vehicle (100). In one embodiment, the vehicle (100) comprising a power unit (106) which is interchangeably also called as a single cylinder engine (106) for the purpose of this application. In another embodiment, the single cylinder engine (106) being a single cylinder internal combustion engine. The vehicle (100) further comprises an exhaust system. The exhaust system comprises a single exhaust pipe (108). The single exhaust pipe (108) extends rearwardly from a combustion chamber of the single cylinder engine (106) to a single exhaust outlet (110) of the vehicle (100). In one embodiment, the single exhaust pipe (108) is configured to allow flow of exhaust gases from the combustion chamber to a single discharge exhaust port, and the single discharge exhaust port is exposed to the atmosphere. The single exhaust pipe (108) carries exhaust gases from the single cylinder engine (106) to the atmosphere through the single exhaust outlet (110). In one embodiment, the vehicle (100) comprises one or more catalytic converters (200) disposed within the single exhaust pipe (108).
[041] The one or more catalytic converter (205) is configured to purify the exhaust gas emitted from the combustion chamber within the single exhaust pipe (108) extending from the combustion chamber to the single discharge exhaust port (408 refer to figure 4) of the single exhaust outlet (110).
[042] Figure 3 illustrates a block diagram (300) showing the oxidation and reduction reaction going on within the single cylinder’s exhaust system (200), in accordance with an embodiment of the present subject matter.
[043] Figure 4 illustrates a block diagram (400) showing the working of the single cylinder’s exhaust system (205) for determining health of the exhaust system (205), in accordance with an embodiment of the present subject matter.
[044] The present subject matter provides an exhaust system (205) of a vehicle (100) having a feedback mechanism system which can diagnose the health status of the catalytic converter and intimate the health status on the vehicle (100) by means of two or more oxygen detectors and speedometer or display unit of a vehicle (405) or to a wirelessly connected communication device (407).
[045] In an embodiment of the present invention, a vehicle (100) is equipped with several components, including a single cylinder engine (106) with a combustion chamber, a single exhaust pipe (108) connected to a single discharge or single exhaust port (408) exposed to the atmosphere, one or more catalytic converters (205), and at least two oxygen sensors or detectors interchangeably used (202, 203). The single exhaust pipe (108) facilitates the flow of exhaust gases from the combustion chamber to the single discharge or exhaust port (408). The one or more catalytic converter(s) (205) are responsible for purifying the exhaust gases emitted from the combustion chamber as they travel along the exhaust path extending from the combustion chamber to the single discharge or exhaust port (408).
[046] As per aspect of the present claimed invention, the single exhaust pipe (108) comprises a primary exhaust path (204a) and a secondary exhaust path (204b). The primary exhaust path (204a) is of a predetermined diameter, which is significantly larger in diameter compared to the secondary exhaust path (204b). For instance, the diameter of the secondary exhaust path (204b) is substantially smaller, ranging from 20 to 50 times less than that of the primary exhaust path (204a). The primary exhaust path (204a) receives the unprocessed exhaust gases (401) from the vehicle's single cylinder engine (106) and houses both a primary oxygen detector (202) and one or more catalytic converters (205). Upon entering the primary exhaust path (204a), the unprocessed gases (401) enter the one or more catalytic converter(s) (205), where they undergo oxidation and reduction reactions, converting unburnt hydrocarbons into carbon dioxide and water, carbon monoxide into carbon dioxide, and reducing nitrogen dioxide and nitric oxide into nitrogen and oxygen. Positioned within the primary exhaust path (204a) between the single cylinder engine (106) and the one or more catalytic converter(s) (205), the primary oxygen detector (202) monitors the oxygen content of the unprocessed exhaust gases (401).
[047] Once the exhaust gases are treated within the one or more catalytic converter(s) (205), they exit the exhaust system and are released into the environment through the single exhaust or single discharge port (408). Additionally, a secondary exhaust path (204b), separate from the primary exhaust path (204a), and is linked or connected to the primary exhaust path (204a) beyond the one or more catalytic converter(s) (205) and before the single exhaust port (408) and single discharge port (408). Here, a portion of the processed exhaust gases (402) is diverted into the secondary exhaust path (204b). A secondary oxygen detector (203) is strategically placed within the secondary exhaust path (204b) to monitor the oxygen content of these processed gases (402).
[048] After detection the portion of the processed exhaust gas (402) within the secondary exhaust path (204b) is released back into the primary exhaust path (204a), just before the one or more catalytic converters (205). Both the primary oxygen detector (202) and the secondary oxygen detector (203) are further in communication with a controller (404) of a vehicle, which reads and compares the data provided by both the single oxygen sensors or detectors (202, 203).
[049] The controller (404) is configured to compare the detected oxygen content information provided by both the primary oxygen detector (202) and secondary oxygen detector (203) and assess the health of the one or more catalytic converter (205). Discrepancies or deviations between the oxygen levels detected by the two detectors (202, 203) cis configured to indicate potential issues with the one or more catalytic converters (205). For example, if the oxygen content measured by the primary oxygen detector (202) remains high while the secondary oxygen detector (203) indicates a significant reduction in oxygen levels, it may suggest that the one or more catalytic converter(s) is effectively converting the exhaust gases, indicating good health condition of the catalytic converter. Similarly, if the oxygen content measured by the primary detector remains high and the secondary detector also indicates a significant high content of oxygen levels, it may indicate potential deterioration or malfunction of the one or more catalytic converter (205).
[050] Additionally, the controller (404) is configured to analyze the rate of change in oxygen content detected by both sensors over time. Sudden or significant fluctuations in oxygen levels could signal abrupt changes in catalytic converter (205) efficiency or performance, prompting the controller to trigger alerts or diagnostic routines for further investigation.
[051] By integrating data from both the primary oxygen detector (202) and secondary oxygen detectors (203), the controller (404) can effectively assess the health status of the catalytic converter(s) (205) and provide timely feedback or alerts to the vehicle’s operator or user via the dashboard display (405) or any wirelessly connected communication device (407), such as a mobile phone. This proactive monitoring and diagnostic capability help ensure optimal performance and longevity of the catalytic converter(s), ultimately contributing to reduced emissions and improved overall vehicle efficiency.
[052] As per another embodiment, a catalytic converter (205) health indicator is provided on the display panel of the vehicle. The catalytic converter (205) health indicator is configured to display a green colour after turning ON of a vehicle ignition, and the green colour indicating the one or more catalytic converter (205) is of good health.
[053] As per another embodiment, the catalytic converter (205) health indicator is configured to display a yellow colour after turning ON of a vehicle ignition, and the yellow colour indicating the one or more catalytic converter (205) is of intermediate health.
[054] As per another embodiment, the catalytic converter health indicator is configured to display a red colour after turning ON of a vehicle ignition, and the red colour indicating the one or more catalytic converter (205) is of poor health.
[055] As per an embodiment, a communication unit may be configured to display message on one of a display unit (405) of vehicle, and a connected device (407) for immediate action for servicing of the one or more catalytic converter (205).
[056] As per another embodiment of the present subject matter, the controller (404) communicates about the health of the catalytic converter (205) to electronic control unit (406), and the information is used by the electronic control unit (406) for further processes.
[057] As per another embodiment of the present subject matter, the outlet of the secondary exhaust path (204b) releases the processed exhaust gas (402) just before the position of the primary oxygen detector (202) on the primary exhaust path (204a).
[058] As per another embodiment of the present subject matter, the outlet of the secondary exhaust path (204b) releases the processed exhaust gas (402) in front of the position of the primary oxygen detector (202) on the primary exhaust path (204a).
[059] As per another embodiment of the present subject matter, the outlet of the secondary exhaust path (204b) releases the processed exhaust gas (402) just after the position of the primary oxygen detector (202) and before the one or more catalytic converter (205) on the primary exhaust path (204a).
[060] As per another embodiment of the present subject matter, the unprocessed exhaust gas (401) within the primary exhaust path (204a) along with the processed exhaust gas (402), together (403) enter into the one of more catalytic converter (205) for further processing of the exhaust gasses.
[061] In an embodiment, the primary oxygen detector (202) is disposed downstream of the one or more catalytic converter (205), i.e. after the position of the one or more catalytic converter (205).
[062] In another embodiment, the primary oxygen detector (202) is disposed downstream of the one or more catalytic converter (205), i.e. after the position of the one or more catalytic converter (205) and the secondary oxygen detector (203) is positioned in one of the middle of the secondary exhaust path (204b) and in proximity of the primary exhaust path (204a) in one of the left hand side and right hand side of the one or more catalytic converter (205).
[063] In another embodiment, the secondary oxygen detector (203) is positioned in proximity of the primary exhaust path (204a) just before the secondary exhaust path (204a) joins the primary exhaust path (204a) in one of the left hand side and right hand side of the one or more catalytic converter (205).
[064] While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing from the spirit and scope of the invention.
REFERENCE NUMERALS:


100 vehicle
102 headlamp assembly
104 seat assembly
106 single cylinder engine
108 exhaust pipe
110 exhaust outlet
200 exhaust system
205 one or more catalytic converter
202, 203 oxygen detectors
204a, 204b primary and secondary exhaust path
401 unprocessed exhaust gasses
402 processed exhaust gasses
404 controller
405 speedometer/display unit of vehicle
406 electronic control unit
407 wirelessly connected device
408 exhaust port
300, 400 block diagrams
,CLAIMS:CLAIMS

We claim:
1. An exhaust system for a single cylinder engine (106) of a vehicle (100) comprising:
an exhaust pipe (108) connected to an exhaust port (408); and
one or more catalytic converter (205) being configured to process unprocessed exhaust gasses emitted from said single cylinder engine (106) of said vehicle (100);
wherein said exhaust pipe (108) includes a primary exhaust path (204a) and a secondary exhaust path (204b), wherein said primary exhaust path (204a) and said secondary exhaust path (204b) being connected with each other;
wherein at least one oxygen detector (202, 203) being positioned within each one of said primary exhaust path (204a) and said secondary exhaust path (204b).
2. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein said at least one oxygen detector (202, 203) includes a primary oxygen detector (202) and a secondary oxygen detector (203).
3. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 2, wherein said primary oxygen detector (202) being disposed within a primary exhaust path (204a).
4. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 2, wherein said secondary oxygen detector (203) being disposed within a secondary exhaust path (204b).
5. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein said primary exhaust path (204a) being larger in diameter than said secondary exhaust path (204b), ranging in between 20 to 50 times larger than said secondary exhaust path (204b).
6. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein said primary exhaust path (204a) being configured to receive unprocessed exhaust gases from said single cylinder engine (106) and wherein said primary exhaust path (204a) houses both a primary oxygen detector (202) and said one or more catalytic converters (205).
7. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein said secondary exhaust path (204b) being configured to receive processed exhaust gases from said primary exhaust path (204a) and wherein said secondary exhaust path (204b) houses a secondary oxygen detector (203).
8. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein a portion of said processed exhaust gases being configured to be diverted into said secondary exhaust path (204b) from said primary exhaust path (204a) after exiting said one or more catalytic converters (205).
9. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein said secondary exhaust path (204b) being configured to link with said primary exhaust path (204a) beyond said one or more catalytic converters (205) and before a single exhaust port (408).
10. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 1, wherein a controller (404) being configured to compare the detected oxygen content information provided by both said primary oxygen detector (202) and said secondary oxygen detector (203) for assessing the health of said one or more catalytic converters (205).
11. The exhaust system for a single cylinder engine (106) of a vehicle (100) as claimed in claim 10, wherein said controller (404) being configured to communicate the health status of said one or more catalytic converters (205) to one of a display device of said vehicle (100) and a wirelessly connected device.

Documents

Application Documents

# Name Date
1 202441027139-STATEMENT OF UNDERTAKING (FORM 3) [01-04-2024(online)].pdf 2024-04-01
2 202441027139-PROVISIONAL SPECIFICATION [01-04-2024(online)].pdf 2024-04-01
3 202441027139-FORM 1 [01-04-2024(online)].pdf 2024-04-01
4 202441027139-FIGURE OF ABSTRACT [01-04-2024(online)].pdf 2024-04-01
5 202441027139-DRAWINGS [01-04-2024(online)].pdf 2024-04-01
6 202441027139-Proof of Right [01-10-2024(online)].pdf 2024-10-01
7 202441027139-FORM-5 [02-12-2024(online)].pdf 2024-12-02
8 202441027139-FORM 18 [02-12-2024(online)].pdf 2024-12-02
9 202441027139-DRAWING [02-12-2024(online)].pdf 2024-12-02
10 202441027139-CORRESPONDENCE-OTHERS [02-12-2024(online)].pdf 2024-12-02
11 202441027139-COMPLETE SPECIFICATION [02-12-2024(online)].pdf 2024-12-02