Variable Runner Length Intake Manifold Design: An Interim Progress Report Cooper Union

Format:

Conference/Event

Author/Creator:

Vaughan, Vaughan, author.

Contributor:

Delagrammatikas, George J.

Conference Name:

SAE 2010 World Congress & Exhibition (2010-04-13 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

Manifold tuning has long been a critical facet of engine designand performance optimization. This paper details the design,analysis, and initial fabrication of a variable runner lengthintake manifold for a restricted 2003 Suzuki GSXR 600 engine. Aseries of analytical Helmholtz resonance calculations were firstperformed to assess the feasibility of such a system. Acomprehensive CFD study was then performed using a combination ofRicardo WAVE® and Fluent® simulations. Custom software wasdeveloped to optimize restrictor geometry through fully automatedCFD simulations whose results were investigated to determine theoptimal transition for the intended flow characteristics. Thisresulting candidate geometry was then used with a variable intakedesign in a Ricardo WAVE® manifold dynamics model and was variediteratively to yield an optimum final geometry. This step-wisedesign method was intended to minimize the computational expensenecessary to produce an acceptable design slated forproduction.A series of manufacturing processes was then developed tofabricate the various intake components out of lightweight carbonfiber or aluminum. Sliding mechanisms were actuated via a linkagesystem powered by a small servo motor. This motor was controlled bya Microchip dsPIC® microcontroller that was embedded into the 2009Cooper Union FSAE® car's power distribution PCB. The controllercommunicates with the engine's MicroSquirt® ECU over CAN toread instantaneous engine speed and commands the servo based off aempirically tuned lookup table. The system can be monitoredwirelessly over 802.11b

Notes:

Vendor supplied data

Publisher Number:

2010-01-1112

Access Restriction:

Restricted for use by site license