نتایج جستجو برای: exhaust manifolds

تعداد نتایج: 41981  

2005
J. Cooper Johnson Matthey

Stringent regulations governing automobile exhaust emissions are due to come into force i n the United States. Johnson Matthey have undertaken the development of platinum-based catalytic reactors for control of these exhaust emissions. Two new types of catalyst have demonstrated the feasibility of exhaust control by catalytic means, nnd have been incorporated on test vehicles to achieve emissio...

2002
Sepe E.

European regulations regarding exhaust gas emissions have constantly become more restricted in the last decades. Components of the exhaust gas after-treatment system and ECU strategies have become correspondingly more complicated in order to fulfil the prescribed limits. This paper describes how a real time HIL engine simulator can be used to test EOBD ECU strategies, in order to reduce the amo...

Journal: :American journal of public health 1989
R C Baron R C Backer I M Sopher

We investigated the circumstances of unintended carbon monoxide deaths from motor vehicle exhaust. Of 64 episodes involving 82 deaths investigated by the West Virginia Office of the Chief Medical Examiner, 1978-84, 50 occurred outdoors in older vehicles with defective exhaust systems and 14 occurred in enclosed or semi-enclosed home garages. Blood alcohol was detected in 50 (68 per cent) of 74 ...

2012
Andrew Manning Farhad Memarzadeh Gerald L. Riskowski

The results from a computational fluid dynamics (CFD) study on the effect of air supply diffuser type and exhaust location in a typical animal research laboratory are presented. The results show that low-level exhausts produce higher temperatures in the room and cages, but the best in-cage ventilation (lowest CO 2 concentrations) compared with ceiling or high-level exhausts. Further, the study ...

2016

1. The possible carcinogenicity of diesel engine exhaust is a topic that the Industrial Injuries Advisory Council (IIAC) has had under review. In September 2015, it published an Information Note relating to lung cancer, bladder cancer and diesel exhaust emissions across a range of occupations.1 That Information Note set aside for separate consideration the case for prescribing under the Industr...

Muffler is one of the main components of an automotive exhaust system, which reduces the noise of the exhaust system. In this paper, modeling and simulation of the acoustic behavior of a muffler is presented with the aid of  an engineering software. For this purpose, firstly, an analytical model is presented to evaluate the sound transmission loss in cylindrical shells based on Sander's theory....

ژورنال: تحقیقات موتور 2020
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To meet consumer and legislation requirements, various technologies have been used worldwide to achieve optimal fuel consumption and to reduce greenhouse gas emissions. One of the proposed technologies is cylinder deactivation using various methods, including, injectors cutting off, closing the intake and exhaust valves and crankshaft decoupling. In this paper, a GT-Power model is created to in...

ژورنال: تحقیقات موتور 2022

In this experimental study, the fuel system of the OM364 diesel engine manufactured by IDEM company, which operates in the basic mode with inline fuel pump and mechanical governor control, is upgraded to a common rail system with electronic control by the ECU. Also, emmssion of exhaust gases is reduced by SCR and DOC catalysts then performance and emmission parameters of engine are compared i...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
ali khavanin assistant professor in occupational health, tarbiyat modarres university ehsan hajiazimi msc student of occupational health, tarbiyat modarres university hasan asilian mahabadi assistant professor in occupational health, tarbiyat modarres university sayed bagher mortazavi assistant professor in occupational health, tarbiyat modarres university. ardalan soleimanian msc student of occupational health, tarbiyat modarres university. masoud motallebi ph.d. student of occupational health, tarbiyat modarres university

introduction: during the thirty years ago noise pollution increased quickly in the urbane communities that motorcycles are chief sources of noise. the objective of this study is reduction of noise emitted from motorcycle exhaust, applying engineering design. materials and methods: in this pre-experimental study, current condition of noise emitted from motorcycle exhaust and physical parameters ...

2011
Ansuman Mishra

This paper reports improved performance of discharge plasma in filtered engine exhaust treatment. Our paper deals about the removal of NOX emissions from the diesel exhaust by electric discharge plasma. For the treatment of diesel exhaust a new type of reactor referred to as cross-flow dielectric barrier discharge reactor has been used, where the gas flow is perpendicular to the corona electrod...

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