Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714824
R. Alagu, E. G. Sundaram
Biodiesel as an augmenting fuel to petroleum diesel has advantages like lower CO, lower CO2, decreased particulate matter emission and lower UBHC and few disadvantages like poorer cold flow characteristics, lower heating values, and mostly reported higher emissions of oxides of nitrogen (NOx = NO + NO2, where NO is nitric oxide and NO2 is nitrogen dioxide). Emission of oxides of nitrogen is the focus of this review article. Formation of NOx is a complex process and gets affected by several parameters like injection timing, adiabatic flame temperature, radiation heat transfer, and ignition delay. This article provides a review of the rich literature describing these parameters, and provides additional insight into the system responses that are manifested by the use of biodiesel.
生物柴油作为石油柴油的补充燃料，具有CO、CO2较低、颗粒物排放减少、UBHC较低等优点，冷流特性较差、热值较低等缺点，且大多报道氮氧化物(NOx = NO + NO2，其中NO为一氧化氮，NO2为二氧化氮)的排放量较高。本文重点介绍了氮氧化物的排放。NOx的形成是一个复杂的过程，受到喷射时间、绝热火焰温度、辐射传热、点火延迟等参数的影响。本文对描述这些参数的丰富文献进行了回顾，并对使用生物柴油所表现出的系统反应提供了额外的见解。
{"title":"Nitrogen oxide emission in biodiesel fuelled CI engines — A review","authors":"R. Alagu, E. G. Sundaram","doi":"10.1109/FAME.2010.5714824","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714824","url":null,"abstract":"Biodiesel as an augmenting fuel to petroleum diesel has advantages like lower CO, lower CO2, decreased particulate matter emission and lower UBHC and few disadvantages like poorer cold flow characteristics, lower heating values, and mostly reported higher emissions of oxides of nitrogen (NOx = NO + NO2, where NO is nitric oxide and NO2 is nitrogen dioxide). Emission of oxides of nitrogen is the focus of this review article. Formation of NOx is a complex process and gets affected by several parameters like injection timing, adiabatic flame temperature, radiation heat transfer, and ignition delay. This article provides a review of the rich literature describing these parameters, and provides additional insight into the system responses that are manifested by the use of biodiesel.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117224948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714819
R B Anand, R. Sandeep
The curved diffusers are used in fluid flow systems to decelerate the fluid flow and turn the fluid simultaneously due to space restrictions and design compatibility. The main problem in achieving a high pressure recovery is the flow separation which results in non-uniform flow distribution and excessive losses. The present work is aimed to reveal the fluid flow characteristics in the Y-shaped diffusing ducts; two inlets and one outlet. A set of three Y-shaped diffusing ducts having same curvilinear length and area ratio while varying in the angle of turn (15°, 22.5°and 30°) are considered for the investigation. The Y-shaped diffusing duct is formed by combining two S-shaped circular similar diffusing ducts. The overall area ratio of the Y-shaped duct is 1.5 and the curvilinear length is 600mm. The whole investigation is carried out in two phases; in the first phase a commercial CFD code is verified for the capability against the fluid flow analysis within an S-shaped diffuser and in the second phase, the investigation is carried out to study the effect of angle of turn in the Y-shaped ducts. For the process of validation the established experimental results are used and found that the CFD code applying RNG k-ε turbulence model is predicted the results close to experiments. Taking idea from the validation similar procedure is followed for the remaining analysis. The results are presented in the form of contour plots for the axial velocity distribution and the cross flow velocity distribution is depicted as vector plots. The performance parameters like coefficients of static pressure recovery and total pressure loss are calculated based on the mass-averaged quantities.
{"title":"Effect of angle of turn on flow characteristics of Y-shaped diffusing duct using CFD","authors":"R B Anand, R. Sandeep","doi":"10.1109/FAME.2010.5714819","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714819","url":null,"abstract":"The curved diffusers are used in fluid flow systems to decelerate the fluid flow and turn the fluid simultaneously due to space restrictions and design compatibility. The main problem in achieving a high pressure recovery is the flow separation which results in non-uniform flow distribution and excessive losses. The present work is aimed to reveal the fluid flow characteristics in the Y-shaped diffusing ducts; two inlets and one outlet. A set of three Y-shaped diffusing ducts having same curvilinear length and area ratio while varying in the angle of turn (15°, 22.5°and 30°) are considered for the investigation. The Y-shaped diffusing duct is formed by combining two S-shaped circular similar diffusing ducts. The overall area ratio of the Y-shaped duct is 1.5 and the curvilinear length is 600mm. The whole investigation is carried out in two phases; in the first phase a commercial CFD code is verified for the capability against the fluid flow analysis within an S-shaped diffuser and in the second phase, the investigation is carried out to study the effect of angle of turn in the Y-shaped ducts. For the process of validation the established experimental results are used and found that the CFD code applying RNG k-ε turbulence model is predicted the results close to experiments. Taking idea from the validation similar procedure is followed for the remaining analysis. The results are presented in the form of contour plots for the axial velocity distribution and the cross flow velocity distribution is depicted as vector plots. The performance parameters like coefficients of static pressure recovery and total pressure loss are calculated based on the mass-averaged quantities.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125923942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714862
G. Senthilkumar, S. Ramachandran, M. Purusothaman
The aim of this project is to design and optimize the existing automobile radiator. The entire analysis is carried out using CFD (Computational Fluid Dynamics) with FLUENT (6.0.) as software. The main objective is to design the automobile radiator with surface area density (SAD) greater than 1000 m2//m3 with increased heat transfer coefficient, rate of Heat transfer, reduced cost and reduced weight using CFD. Suitable modifications are to be incorporated depending on the requirements.
{"title":"Indigenous development of automobile radiator using CFD","authors":"G. Senthilkumar, S. Ramachandran, M. Purusothaman","doi":"10.1109/FAME.2010.5714862","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714862","url":null,"abstract":"The aim of this project is to design and optimize the existing automobile radiator. The entire analysis is carried out using CFD (Computational Fluid Dynamics) with FLUENT (6.0.) as software. The main objective is to design the automobile radiator with surface area density (SAD) greater than 1000 m2//m3 with increased heat transfer coefficient, rate of Heat transfer, reduced cost and reduced weight using CFD. Suitable modifications are to be incorporated depending on the requirements.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130075319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714803
S. Babu, B. K. Vinayagam
Composite material in general, and metal matrix composites in particular, have been a main topic in research for the last 15 years. Metal matrix composites (MMC) have been found to be useful in a number of engineering applications and particle reinforced aluminium MMCs have received considerable attention due to their excellent engineering properties like high strength to weight ratio, high toughness, high impact strength etc. But these materials are generally regarded as extremely difficult to machine, because of the abrasive characteristics of the reinforced particulates. It is also acknowledged that their machining behaviour is not fully understood. The work reviewed here investigated the drilling characteristics in terms of drilling forces, tool wear, chip formation, drilled hole quality, and influence of coolants.
{"title":"Review on investigation of various parameters on drilling of metal matrix composites","authors":"S. Babu, B. K. Vinayagam","doi":"10.1109/FAME.2010.5714803","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714803","url":null,"abstract":"Composite material in general, and metal matrix composites in particular, have been a main topic in research for the last 15 years. Metal matrix composites (MMC) have been found to be useful in a number of engineering applications and particle reinforced aluminium MMCs have received considerable attention due to their excellent engineering properties like high strength to weight ratio, high toughness, high impact strength etc. But these materials are generally regarded as extremely difficult to machine, because of the abrasive characteristics of the reinforced particulates. It is also acknowledged that their machining behaviour is not fully understood. The work reviewed here investigated the drilling characteristics in terms of drilling forces, tool wear, chip formation, drilled hole quality, and influence of coolants.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130686702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714836
N. Shankar Ganesh, T. Srinivas
With the utilisation of binary mixture as working fluid in a power generation cycle, higher heat conversion rate will be achieved in the boiler which results in more efficiency. In this paper two Kalina cycle designs using binary mixtures as working fluid were compared, the cycle efficiency as a function of turbine inlet and separator outlet were calculated for the Kalina cycles. The cycle's property values at each point are obtained from matlab. The optimized designs were identified at various turbine inlet conditions resulting in energy conservation.
{"title":"Optimized Kalina cycle","authors":"N. Shankar Ganesh, T. Srinivas","doi":"10.1109/FAME.2010.5714836","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714836","url":null,"abstract":"With the utilisation of binary mixture as working fluid in a power generation cycle, higher heat conversion rate will be achieved in the boiler which results in more efficiency. In this paper two Kalina cycle designs using binary mixtures as working fluid were compared, the cycle efficiency as a function of turbine inlet and separator outlet were calculated for the Kalina cycles. The cycle's property values at each point are obtained from matlab. The optimized designs were identified at various turbine inlet conditions resulting in energy conservation.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128779692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714818
B. Jothi, A. M. J. Basha
The design of sophisticated aircraft filters involve strict compliance to the international standards for higher reliability and efficient performance of the hydraulic systems. Generally there are two types of hydraulic filters being used such as (1) Disposable glass fibre media filters. (2) Non-Disposable, cleanable stainless steel mesh filters. The present paper describes the design procedure adopted for development of non-disposable stainless steel mesh type of filters used for combat aircrafts.
{"title":"Design criteria for aircraft hydraulic filter","authors":"B. Jothi, A. M. J. Basha","doi":"10.1109/FAME.2010.5714818","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714818","url":null,"abstract":"The design of sophisticated aircraft filters involve strict compliance to the international standards for higher reliability and efficient performance of the hydraulic systems. Generally there are two types of hydraulic filters being used such as (1) Disposable glass fibre media filters. (2) Non-Disposable, cleanable stainless steel mesh filters. The present paper describes the design procedure adopted for development of non-disposable stainless steel mesh type of filters used for combat aircrafts.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133678590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714859
Saikat Biswas
Lower turning circle diameter (TCD) is the mail requirement for all army vehicles, specifically for off-road hilly terrain. And steering effort is comparative to civilian vehicles required for army vehicles. Steering system is one of the key control and ride-handling parameter of vehicles. To meet these requirements, proper design of steering linkage and proper selection of wheel turning angles are crucial. Design of Steering linkage for a monologue V-hull and a Chassis base vehicle is quite different. In this work author has designed the steering system for Casper (Mine protected vehicle) within a stretched timeline and with lots of constraints related to design and processes. This work was done through optimization of TCD and Steering efforts and afterward evaluated the design through performance and other required testing by measuring TCD, Angles (LH and RH side) and Steering effort. Also, torture track testing was done to ensure effects of articulation on vehicle mainly the behavior of steering linkage. The objective of this work is to prove that a good design of steering system is possible with optimization of its performance parameters even in huge constraints.
{"title":"Design of steering system through optimization of TCD and steering effort","authors":"Saikat Biswas","doi":"10.1109/FAME.2010.5714859","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714859","url":null,"abstract":"Lower turning circle diameter (TCD) is the mail requirement for all army vehicles, specifically for off-road hilly terrain. And steering effort is comparative to civilian vehicles required for army vehicles. Steering system is one of the key control and ride-handling parameter of vehicles. To meet these requirements, proper design of steering linkage and proper selection of wheel turning angles are crucial. Design of Steering linkage for a monologue V-hull and a Chassis base vehicle is quite different. In this work author has designed the steering system for Casper (Mine protected vehicle) within a stretched timeline and with lots of constraints related to design and processes. This work was done through optimization of TCD and Steering efforts and afterward evaluated the design through performance and other required testing by measuring TCD, Angles (LH and RH side) and Steering effort. Also, torture track testing was done to ensure effects of articulation on vehicle mainly the behavior of steering linkage. The objective of this work is to prove that a good design of steering system is possible with optimization of its performance parameters even in huge constraints.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128288212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714800
S. Prakash, J. LillyMercy, S. Nithiyalakshmi, K. Palanikumar
Medium Density fiberboards are appropriate for many interior and exterior industrial applications. The degree of surface roughness of the MDF board plays an important role, since any surface irregularities reducing the final quality of the product. Design of experiments has been used to study the effects of the drilling parameters such as speed, feedrate, and drill diameter (input data's) used on the prediction of surface roughness (output response) on drilling MDF composite. A mathematical model on the surface roughness has been developed in terms of the input parameters. The effect of these parameters on surface roughness has been investigated using Box-Behenken experimental design. Response contours were constructed for determining the optimum drilling condition for a required surface roughness. The developed model establishes a correlation between speed, feed rate and drill diameter that influence the surface roughness in a MDF panel. Analysis of variance (ANOVA) is employed to study the surface roughness characteristics in drilling operation of MDF board. The analysis of variance showed high coefficient of determination (R2) value of 0.995, thus ensuring a satisfactory adjustment of the second order regression model with experimental data. The verification experiment carried out to check the validity of the developed model predicted surface roughness with in 4.6%error
{"title":"Prediction of surface roughness parameters in drilling of MDF composite panel using Box-Behnken experimental design (BBD)","authors":"S. Prakash, J. LillyMercy, S. Nithiyalakshmi, K. Palanikumar","doi":"10.1109/FAME.2010.5714800","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714800","url":null,"abstract":"Medium Density fiberboards are appropriate for many interior and exterior industrial applications. The degree of surface roughness of the MDF board plays an important role, since any surface irregularities reducing the final quality of the product. Design of experiments has been used to study the effects of the drilling parameters such as speed, feedrate, and drill diameter (input data's) used on the prediction of surface roughness (output response) on drilling MDF composite. A mathematical model on the surface roughness has been developed in terms of the input parameters. The effect of these parameters on surface roughness has been investigated using Box-Behenken experimental design. Response contours were constructed for determining the optimum drilling condition for a required surface roughness. The developed model establishes a correlation between speed, feed rate and drill diameter that influence the surface roughness in a MDF panel. Analysis of variance (ANOVA) is employed to study the surface roughness characteristics in drilling operation of MDF board. The analysis of variance showed high coefficient of determination (R2) value of 0.995, thus ensuring a satisfactory adjustment of the second order regression model with experimental data. The verification experiment carried out to check the validity of the developed model predicted surface roughness with in 4.6%error","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130013049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714810
P. Babu, P. R. Srivathsan, V. N. Banugopan, S. Prabhakar, K. Annamalai
The increasingly strict restrictions being place on diesel engine emissions have the interest in alternative combustion concept. The dual fuel engine exhibits much better emission characteristics than a diesel engine whilst having similar efficiency. The dual fuel engine is investigated for their potential to achieve near zero nitrogen oxide (NOx) and soot-particle emissions. In both SI and diesel engines, the fuel must burn hot to ensure that the flame spreads rapidly through the combustion chamber before a new "charge" enters. In a dual fuel split injection engine, there is no need for a quickly spreading flame because combustion occurs throughout the combustion chamber. As a result, combustion temperatures can be lower, so emissions of nitrogen pollutants are negligible. The fuel is spread in low concentrations throughout the cylinder, so the soot emissions from fuel-rich regions in diesels are not present. As the method for reducing exhaust emissions from diesel engines, a homogenous charge diesel combustion technique is used where by a portion of fuel is supplied into the intake port to form homogenous pre mixture then the mixture is fed into the cylinder port before ignition of the diesel fuel, which is injected directly into the cylinder. The homogeneous pre mixture is prepared with the help of electronic fuel injection.
{"title":"Experimental investigation on performance and emission characteristics of dual fuel split injection of ethanol and diesel in CI engine","authors":"P. Babu, P. R. Srivathsan, V. N. Banugopan, S. Prabhakar, K. Annamalai","doi":"10.1109/FAME.2010.5714810","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714810","url":null,"abstract":"The increasingly strict restrictions being place on diesel engine emissions have the interest in alternative combustion concept. The dual fuel engine exhibits much better emission characteristics than a diesel engine whilst having similar efficiency. The dual fuel engine is investigated for their potential to achieve near zero nitrogen oxide (NOx) and soot-particle emissions. In both SI and diesel engines, the fuel must burn hot to ensure that the flame spreads rapidly through the combustion chamber before a new \"charge\" enters. In a dual fuel split injection engine, there is no need for a quickly spreading flame because combustion occurs throughout the combustion chamber. As a result, combustion temperatures can be lower, so emissions of nitrogen pollutants are negligible. The fuel is spread in low concentrations throughout the cylinder, so the soot emissions from fuel-rich regions in diesels are not present. As the method for reducing exhaust emissions from diesel engines, a homogenous charge diesel combustion technique is used where by a portion of fuel is supplied into the intake port to form homogenous pre mixture then the mixture is fed into the cylinder port before ignition of the diesel fuel, which is injected directly into the cylinder. The homogeneous pre mixture is prepared with the help of electronic fuel injection.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133490334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/FAME.2010.5714823
G. Ramesh, I. Narasimharao, A. Robinson
Since the organization of the automobile, the internal combustion engine has evolved considerably even then one constant has remained through out the decade of internal combustion engine development is the camshaft. The camshaft has been used to controlling the valve actuation and timing and therefore influencing the overall performance of the engine. This camshaft rotates relative to the rotation of the crank shaft as the camshaft rotates, cam lobes, attached to the camshaft, interface with the engine's valves. The inter face may take place via a mechanical linkage, as the result if the cam rotates it forces the valve open. This camshaft will increase the weight of the engine and needs special attention for lubrication, increases the frictional resistance reducing the efficiency of the engine. This paper will discuss about the cam less engine, in this we remove the cam shaft and its linkages. Instead of cam shaft, the valve operation (opening and closing) shall be carried out by electro mechanical poppet valve or electro mechanical ball valve, which is controlled by a micro controller unit, it receives the signal from the sensor fitted inside the crankshaft housing based on the signal micro controller actuate the valve to open or close. By removing the camshaft a drastic increase in engine performance and life and a decrease in fuel consumption can be achieved.
{"title":"Intelligent engine with micro controller valve actuation and eliminating the cam linkage arrangement","authors":"G. Ramesh, I. Narasimharao, A. Robinson","doi":"10.1109/FAME.2010.5714823","DOIUrl":"https://doi.org/10.1109/FAME.2010.5714823","url":null,"abstract":"Since the organization of the automobile, the internal combustion engine has evolved considerably even then one constant has remained through out the decade of internal combustion engine development is the camshaft. The camshaft has been used to controlling the valve actuation and timing and therefore influencing the overall performance of the engine. This camshaft rotates relative to the rotation of the crank shaft as the camshaft rotates, cam lobes, attached to the camshaft, interface with the engine's valves. The inter face may take place via a mechanical linkage, as the result if the cam rotates it forces the valve open. This camshaft will increase the weight of the engine and needs special attention for lubrication, increases the frictional resistance reducing the efficiency of the engine. This paper will discuss about the cam less engine, in this we remove the cam shaft and its linkages. Instead of cam shaft, the valve operation (opening and closing) shall be carried out by electro mechanical poppet valve or electro mechanical ball valve, which is controlled by a micro controller unit, it receives the signal from the sensor fitted inside the crankshaft housing based on the signal micro controller actuate the valve to open or close. By removing the camshaft a drastic increase in engine performance and life and a decrease in fuel consumption can be achieved.","PeriodicalId":123922,"journal":{"name":"Frontiers in Automobile and Mechanical Engineering -2010","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114451582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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