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Technical Paper

Mixture Formation and Corresponding Knock Limits in a Hydrogen Direct Injection Engine Using Different Jet Forming Caps

2024-04-09
2024-01-2113
The need for carbon-neutral transportation solutions has never been more pronounced. With the continually expanding volume of goods in transit, innovative and dependable powertrain concepts for freight transport are imperative. The green hydrogen-powered internal combustion engine presents an appealing option for integrating a reliable, non-fossil fuel powertrain into commercial vehicles. This study focuses on the adaptation of a single-cylinder diesel engine with a displacement of 2116 cm3 to facilitate hydrogen combustion. The engine, characterized by low levels of swirl and tumble, underwent modifications, including the integration of a conventional central spark plug, a custom-designed piston featuring a reduced compression ratio of 9.5, and a low-pressure hydrogen direct injection system. Operating the injection system at 25 bar hydrogen pressure, the resulting jet profiles were varied by employing jet forming caps affixed directly to the injector nozzle.
Magazine

Automotive Engineering: October 7, 2014

2014-10-07
Outlook for autonomous driving includes cloud Connectivity with off-board data and services and among vehicles will be crucial in maintaining safety and security in future autonomous vehicles. The next wave of crash simulation As computing speed has improved and software itself has made significant speed and performance gains with each release, modeling tools are now quick enough to build high-quality, large, high-detail vehicle models in a very efficient manner. SAE 2014 Convergence preview Interest in advanced driver-assistance technologies is surging, with automotive engineers and decision makers at OEMs and suppliers working feverishly on the convenience vs. safety trade-off and other electronics-related challenges. Cooled EGR shows benefits for gasoline engines Exhaust gas recirculation systems now in use on diesel engines are used mainly to meet emissions regulations. In gasoline engines, they are an appealing way to meet ever more stringent fuel-economy standards
Award

SAE John Johnson Awards for Outstanding Research in Diesel Engines - Participate - SAE International

2018-11-06
Purpose: Established in 2008, this award recognizes outstanding accomplishments and leadership in the area of diesel engines. Two awards are given each year, one for Best Paper and the other, the Diesel Engine Research Medal, given to an individual for outstanding leadership in research and development in the field of diesel engines through a singular accomplishment or lifetime achievement. The Best Paper award recognizes the authors of an original and outstanding technical paper presented at an SAE meeting about diesel engines in the on- or off-road industries. The Medal recognizes an outstanding leader whose professional career has focused on advancing the field of diesel engines.  This award is funded through generous contributions from Dr. John H. Johnson, his colleagues and former students. Dr.
Technical Paper

TURBOCHARGING THE SERIES 71 ENGINE

1958-01-01
580015
DISCUSSED in this paper are some of the problems of turbocharging the 2-stroke diesel engine, with particular emphasis on the effects produced by the variable nozzle, the fuel modulating governor, and altitude, among other factors. Although a turbocharged 2-stroke engine is difficult to rate, the authors' tests appear to demonstrate its practicality through gains in power and economy and to indicate increased future application to automotive diesels.
Technical Paper

Design of Plastic Cylinder Head Cover in Place of Aluminum Cylinder Head Cover for Light Duty Diesel Engines for Weight Reduction Purpose

2020-09-25
2020-28-0468
Currently automotive design is facing multi facet challenges such as reduction in greenhouse gases, better thermal management, and low cost solution to market, vehicle weight management etc. Considering these challenges, efforts had been taken to improve weight management of engine while optimizing the cost of it. Good ‘engine breathing’ is usually associated with efficient intake system e.g. high flow air filter, a well-designed manifold, cylinder block, cylinder head and cylinder head cover etc. However, efficient ‘crankcase breathing’ is an equally important function of any engine. Even in a new engine, the combustion pressure will inevitably pass the piston rings into the crankcase. If an engine’s breathing system should become blocked or restricted, the crankcase will pressurize causing lots of problems to the engine. Prior to 1963 most vehicle engines vented their vapors and oil deposits to atmosphere and the road surface.
Journal Article

Development of DPF regeneration system under all operating conditions for generators

2022-01-09
2022-32-0050
In order to resolve global atmospheric environmental issues, latest diesel engines for industrial machinery are required to reduce the emission of harmful gases such as carbon monoxide (CO), hydrocarbon (HC) and nitrogen oxide (NOx), and particulate matter (PM). For this reason, it is essential to mount exhaust gas after treatment devices such as diesel particulate filter (DPF) and diesel oxidation catalyst (DOC) on diesel engine. Engines mounted DPF must carry out DPF regeneration that burns and removes PM. Generator engine has characteristic of being operated for a long time under light load condition with low exhaust temperature which is difficult for DPF regeneration. In addition, generating white smoke and inlet face clogging of DOC are caused by accumulated soot containing HC at the DOC when operating engine continuously under light load condition.
Event

Attend - Government/Industry Meeting

2024-04-27
The Government/Industry Meeting technical program is designed to provide an open forum to discuss the critical impacts that legislation has on vehicle design from R&D to customer acceptance.
Event

Contact - 2024 Government Industry Meeting

2024-04-27
Annual conference government policy, regulatory makers, automotive industry neutral forum discuss US government regulation, technology, customer acceptance future vehicle design. industry event safety, emission control, fuel efficiency, automated vehicles.
Event

Program - Government/Industry Meeting 2024

2024-04-27
Annual conference government policy, regulatory makers, automotive industry neutral forum discuss US government regulation, technology, customer acceptance future vehicle design. industry event safety, emission control, fuel efficiency, automated vehicles.
Event

Program - Government/Industry Meeting

2024-04-27
The Government/Industry Meeting technical program is designed to provide an open forum to discuss the critical impacts that legislation has on vehicle design from R&D to customer acceptance.

SAE International

2018-03-27
With successes in the 50-shp class gas turbine engine class for unmanned aerial vehicles (UAVs), UAV Turbines has reached an agreement with the U.S. Army’s Reliable Advanced Small Power Systems (RASPS) program to design, manufacture and test a 200 shp class advanced technology turbine engine.
Event

Attend - 2023 Government/Industry Meeting

2024-04-27
The Government/Industry Meeting technical program is designed to provide an open forum to discuss the critical impacts that legislation has on vehicle design from R&D to customer acceptance.
Event

Exhibit/Sponsor - 2024 Government/Industry Meeting

2024-04-27
Annual conference government policy, regulatory makers, automotive industry neutral forum discuss US government regulation, technology, customer acceptance future vehicle design. industry event safety, emission control, fuel efficiency, automated vehicles.
Event

Contact - 2025 Government Industry Meeting

2024-04-27
Annual conference government policy, regulatory makers, automotive industry neutral forum discuss US government regulation, technology, customer acceptance future vehicle design. industry event safety, emission control, fuel efficiency, automated vehicles.
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